Gyro Compass Service Manual

R

Raytheon Marine GmbH High Seas Products Postfach 1166 D – 24100 Kiel Germany Tel +49–4 31–30 19–0 Fax +49–4 31–30 19–291 Email [email protected] www.raymarine.com

Gyro Compass STANDARD 20 Type 110 – 800, 110 – 804 and 110 – 806 Consisting of: – Gyro Compass Casing with outer Sphere, Type 110 – 222, – Supporting Liquid, Type 148 – 162, – Distilled Water, Type 148 – 398 and – Gyrosphere, Type 111 – 006

SERVICE MANUAL

1 Installation and First Putting into Operation 2 Maintenance, Shipboard Repair, Spare Parts Catalogue 3 Construction, Operating Principle, Technical Data

2771E/110–800.DOC032

Edition: 14. Dec. 1999

Weitergabe sowie Vervielfältigung dieser Unterlage, Verwertung und Mitteilung ihres Inhaltes nicht gestattet, soweit nicht ausdrücklich zugestanden. Zuwiderhandlungen verpflichten zu Schadenersatz.

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Gyro Compass STANDARD 20 Service Manual

Contents:

Technical Documentation

Page

Safety Regulations Declaration of Conformity acc. to EC Directive 96/98/EC 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.8.1

Putting into Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 1 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 1 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 2 Preparing the Installation of the Gyrosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 3 Installing the Gyrosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 4 Filling in of the Distilled Water and the Supporting Liquid . . . . . . . . . . . . . . . . . . . . . 1 – 6 Putting in the Outer Sphere into the Compass Casing . . . . . . . . . . . . . . . . . . . . . . . 1 – 8 Display Indications after Switching–on of Gyro Compass Equipment STD 20 . . . 1 – 10 Compass Zero Adjustment (Reference Course Input) . . . . . . . . . . . . . . . . . . . . . . . . 1 – 11 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 11

1.9 1.10 1.11 1.12 1.13 1.14 1.15 1.16

Readout of the Gyro Compass Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 14 Checking and Adjusting the Height of Gyrosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 17 Switching off the Follow–up System of the Gyro Compass . . . . . . . . . . . . . . . . . . . 1 – 18 Test to be performed during Settling Phase or Normal Operation resp. . . . . . . . . . 1 – 19 Settling Time Bridge–over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 20 Clear Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 21 Adjustment of the Polarity for the R.o.T. Output Signal . . . . . . . . . . . . . . . . . . . . . . . 1 – 22 Measuring the Pick–off Voltage1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 22

2 2.1 2.2 2.2.1 2.2.2 2.2.2.1 2.2.2.2

Care, Maintenance and Shipboard Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 1 Safety Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 2 Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 2 Checking the Level of the Supporting Liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 3 Check Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 3 Refilling Operation of Double–distilled Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 6

2.2.3 2.2.3.1 2.2.3.2 2.2.3.3 2.2.3.4 2.2.3.5

Exchanging the Supporting Liquid and the Distilled Water . . . . . . . . . . . . . . . . . . . . 2 – 8 Removing the Outer Sphere from the Compass Casing . . . . . . . . . . . . . . . . . . . . . . 2 – 8 Pouring away the Supporting Liquid and the Distilled Water . . . . . . . . . . . . . . . . . . 2 – 10 Taking the Gyrosphere out of the Outer Sphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 11 Filling up the new Liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 12 Putting in the Outer Sphere into the Compass Casing . . . . . . . . . . . . . . . . . . . . . . . 2 – 14

2.3 2.3.1 2.3.2 2.3.3 2.3.4

Shipboard Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 16 Signalling in Case Warnings have occurred . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 16 Search Aids in Case of Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 17 Aids to Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 18 Checking the Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 19

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2.3.5 2.3.5.1 2.3.5.2 2.3.5.3 2.3.5.4 2.3.5.5 2.3.5.6 2.3.4.6

Exchanging of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 21 Sensor Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 21 Gyrosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 24 Temperature Sensor and Overtemperature Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 25 Heating Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 27 Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 28 Brush Group and Collector Ring Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 29 Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 32

2.3.5

Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 33

2.4 2.4.4

Spare Parts Catalogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 36 Notes on Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 36

3 3.1 3.1.1 3.1.2 3.1.3 3.1.3.1 3.1.3.2

Construction and Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 1 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 1 Supporting Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 2 Joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 3 Outer Sphere and Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 4 Upper Outer Sphere Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 4 Lower Outer Sphere Shell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 5

3.1.4 3.1.5 3.1.6

Gyrosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 6 Sensor Electronics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 7 Casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 8

3.2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7

Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 9 Gyro System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 9 Hydrostatic, Dynamic Suspension and Centring of the Gyrosphere in the Outer Sphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 11 Power Supply of the Gyrosphere . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 12 Electric Pick–off and Follow–up for Course Transmission . . . . . . . . . . . . . . . . . . . . 3 – 14 Controlling the Temperature of the Outer Sphere Group . . . . . . . . . . . . . . . . . . . . . . 3 – 14 400 Hz Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 15 Temperature–dependent Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 16

3.3 3.3.1 3.3.2 3.3.3 3.3.4 3.3.5

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 17 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 17 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 17 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 17 Accuracies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 17 Environmental Conditions and Other Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 18

Index

....................................................................... A – D

Annexes 2771E/110–800.DOC032

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Technical Documentation

Safety Regulations: Warning! Use care during maintenance and repair to avoid contact with energized electrical conductors. Applicable safety regulations must be followed, such as VDE, VBG 4, OSHA 1919, and other consensus safety standards. Caution! • Maintenance and repair must be performed by trained and qualified personnel who are knowledgeable in equipment safety requirements! • Device may be damaged! Exchange of spare parts only with the supply voltage switched off. • When the gyro compass is switched off, the rotors come to a standstill not before a running–down time of approx. 15 to 30 min has elapsed. During this time, no intervention in the gyro compass must be made. The gyrosphere might be damaged !

• Without built–in gyrosphere, the gyro compass equipment STANDARD 20 must not be put into operation: otherwise an error message appears. Do not switch on the 24 V supply voltage! • Check the level of the supporting liquid only while the ship is lying in a harbor. The gyro compass STANDARD 20 must be in operation during this time. • To avoid failure of the device, pay attention to the warnings indicated on the digital display, and eliminate the cause in good time. • It is absolutely necessary to make the entry of the alignment error into the table as – if the sensor electronics is replaced – the difference value is required to ascertain the reference heading for the new PCB!

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ATTENTION Observe Precautions for Handling Electrostatic Sensitive Devices

CAUTION Handling of Electrostatic–sensitive Semiconductor Devices Certain semiconductor devices used in the equipment are liable to damage due to static voltage. Observe the following precautions when handling these devices in their unterminated state, or sub–units containing these devices:

1) Persons removing sub–units from an equipment using these devices must be earthed by a wrist strap connected to the earthing point provided on the equipment. 2) Soldering irons used during the repair operations must be low voltage types with earthed tips and isolated from the mains voltage by a double insulated transformer. 3) Outer clothing worn must be unable to generate static charges. 4) Printed Circuit Boards (PCBs) fitted with these devices must be stored and transported in anti– static bags.

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Technical Documentation

1

Putting into Operation

1.1

Scope of Delivery Standard scope of delivery of ’Gyro Compass STANDARD 20, Type 110 – 800’ (see Fig. 1–1): – Gyro Compass STANDARD 20 with outer sphere, distilled water and supporting liquid (see Fig. 1–2) – Gyrosphere in separate packing – Tools and spare–parts box

Gyro compass with outer sphere, distilled water and supporting liquid

Fig. 1–1:

Gyrosphere in separate packing

Tools and spare– parts packet

Scope of Delivery ’Gyro Compass’

Standard scope of delivery of ’Gyro Compass STANDARD 20, Type 110 – 806’ – Outer sphere with distilled water and supporting liquid packed in the bridge steering stand ComPilot 20 (see scheme Page 1–2) – Gyrosphere in separate packing (see Fig. 1–1) – Tools and spare–parts box (see Fig. 1–1)

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1.2

Procedure (1) Disassemble the transportation support with outer sphere, supporting liquid and distilled water (Section 1.3) (2) Mount the compass casing on board ship. It is not required to mount the gyro compass STANDARD 20 on board ship in the ”ship’s ahead direction”. It can be installed in an optional position and easily accessible for servicing work. (Installation of the Gyro Compass STANDARD 20 see Drawing No. 110 D 222 HP005) For reasons of safety, do not yet establish the cable connection to the distributor COMPACT or to the control unit, resp. Without built–in gyrosphere, the gyro compass equipment STANDARD 20 must not be put into operation: otherwise an error message appears. do not switch on the 24 V supply voltage! (3) (4) (5) (6)

Installing the gyrosphere into the outer sphere (Section 1.4) Filling in of the distilled water and of the supporting liquid (Section 1.5) Putting in the outer sphere into the compass casing (Section 1.6) Establish plug–and–socket connections to the distributor COMPACT or to the control unit, resp., and switch on power supply. (7) Observe the heating and settling phase; pay attention to possibly occuring warnings and error messages (Section 1.7, Sections 2.3.1 and 2.3.2) (8) Adjustment of the compass zero (reference course input) (Section 1.8) (9) Readout and controlling of the gyro compass data (Section 1.9)

Pendulum joint Plastic container Outer sphere Bottles for – supporting liquid – distilled water

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Gyro Compass STANDARD 20 Service Manual

1.3

Technical Documentation

Preparing the Installation of the Gyrosphere – Unscrew the two screws from the upper part of the door of the gyro compass casing, lift out the door, pay attention to ground strap (not with Type 110–806). – Carefully lift out the plastic container with the outer sphere and the two bottles of sup– porting liquid and distilled water (see Fig. 1–2) – Take the outer sphere out of the plastic container and place it on the three rigidly mounted pins (siehe Fig. 1–3)

Caution! Risk of tilt–over!

Pendulum joint

Plastic container Outer sphere

Bottles for – supporting liquid – distilled water

Fig. 1–2: Edition: 05. Mar. 1999

Gyro Compass STANDARD 20 with Transportation Support 1–3

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1.4

Installing the Gyrosphere Required special tool: Suction cup Procedure: – Loosen the six screws that connect the upper outer sphere with the lower outer sphere (see Fig. 1–3).

Loosen 6 screws

Pins

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Fig. 1–3:

Put–down Outer Sphere with Plug

– Remove the upper outer sphere taking into account the cable loom from the lower outer sphere to the small PCB (see Fig. 1–4). – Lift the gyrosphere out of the transportation box and – by making use of the suction cup – insert it carefully into the lower hemisphere (see Fig. 1–4). – Put the upper outer sphere again on the lower outer sphere.

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Technical Documentation

Pay attention to the gasket of between the two outer spheres (see Fig. 1–4)!

– Re–tighten the six screws (see Fig. 1–3).

Suction cup

Gasket

Upper outer sphere Cable loom

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Fig. 1–4:

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Upper and Lower Outer Spheres separated – Inserting the Gyrosphere

1–5

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1.5

Filling in of the Distilled Water and the Supporting Liquid (see Fig. 1–5) – Unscrew three plastic screws (green, red and black) from the upper outer sphere (the black screw serves de–aeration).

It is indispensable to observe the right order of points a) to g)!

Filler

Dist. water Supporting liquid Red Green Black Gaskets Red label Dist. water

Measuring cone

Gasket

Fig. 1–5:

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Filling in the Liquids

1–6

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Technical Documentation

a) b) c) d)

Put the supplied filler onto the bottle of distilled water (red label). Fill the total amount of distilled water (230 cm3) into the filling hole (red screw). Screw in the red screw again; pay attention to gasket. Remove the filler from the empty bottle for distilled water and put it onto the bottle of supporting liquid (green label). e) Fill approx. 840 cm3 of the contents of the bottle into the filling hole (green screw). Pay attention to the fact that 840 cm3 will have been filled in when the measur– ing cone of the liquid level looks as follows:

This view is seen only to beginning of operation (after first filling–in or after changing the supporting liquid, resp.); during operation the dark circle has been smaller (refer to Section 2.2.2.2). f) Supporting liquid that is not used must be poured away by all means! Special measures of disposal are not necessary. g) Screw in the green screw again; pay attention to gasket. h) Screw in the black screw again; pay attention to gasket.

Edition: 05. Mar. 1999

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1.6

Putting in the Outer Sphere into the Compass Casing (see Fig. 1–6) – Re–insert the outer sphere with the gyrosphere in the compass casing carefully:

Caution! Pay attention to the two locking pins of the closure! They must not be damaged, as they ensure the correct angular position.

– With both hands, take hold of the outer sphere and bring it to below the snap closures of the pendulum joint.

Pendulum joint

Small plug

Outer sphere

Fig. 1–6:

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Putting in the Outer Sphere into the Compass Casing 1–8

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Technical Documentation

– With your thumbs, press down two snap closures and make them lock into place – Carefully turn the outer sphere through 90° and repeat the same procedure for the other two snap closures. The outer sphere is now fast to the pendulum joint. – Put the cable with plug counterclockwise (viewed from above) around the outer sphere and fasten the plug to the small PCB of the outer sphere; tighten safety screws. – Shut the door of the binnacle, pay attention to ground strap. The gyro compass is now ready for work and can be put into operation by switching on the 24 V power supply.

Edition: 05. Mar. 1999

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1.7

Display Indications after Switching–on of Gyro Compass Equipment STANDARD 20 The following operating states of the gyro compass will be signalized: (See also Signalling of the Operating States on the Steering Repeater Compass or on the Operator Unit, resp. in the corresponding description). After switching–on of the gyro compass equipment, the digital display indicates: Indications




Comments, Notes

Heating Phase During the heating phase indication of the temperature of the supporting liquid. for example: h: heating phase 28.8 : 28.8 °C



Settling Time As soon as the lower operating temperature of 45 °C is reached:



–

automatical switching–on the follow–up system by the sensor electronics

–

during a settling time of approx. 3 h, heading indication with a luminous point added to the last digit

Heading Indication After termination of the settling procedure: – heading indication This indicated heading value, however, cannot yet be used; it must still be corrected by entering the reference course! (see following Section 1.8)

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Technical Documentation

1.8

Compass Zero Adjustment (Reference Course Input) After installation of the gyro compass, adaptation to the mounting site is required. Compass zero adjustment takes place via switch B11 and push–button B14 on the sensor electronics PCB.

1.8.1

Procedure Prerequisite: – The gyro compass equipment must be in operation at least 5h. (1) Preparing the adjustment: – Ascertain the reference course from the course direction of the ship’s fore–and–aft line (e.g. take bearing or draw the pier course from the sea chart) and note it; e. g.: 178.4°. – Open the gyro compass; on the sensor electronics PCB, the push–button B14 and the switch B11 become visible (see Fig. 1–7). Switch B11 OFF OPEN ON

Push–button B14

Fig. 1–7:

Edition: 27. Febr. 1998

A

B

C

D E

F

G H

Position of Push–button and Switch in the Opened Gyro Compass Sensor

1 – 11

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(2) Entry of the ascertained reference course value Position of the key B14 and switch B11, see Fig. 1–7 Ser. No.

1

Activity

Indication

All connected course indications do not follow the course change any longer.

Switch B11 / A to OFF

100° 10° 1° 1/10°

2

Actuate the key B14 until the first digit of the calculated value appears

3

Pause of actuation > 5s

4

Actuate the key B14 until the second digit of the calculated value appears

5

Pause of actuation > 5s

6

Actuate the key B14 until the third digit of the calculated value appears

7

Pause of actuation > 5s

6

Actuate the key B14 until the fourth digit of the calculated value appears

7

Remarks, Notes

After the end of the value input, set switch B11 / A to ON

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–

The flashing decimal place requests a value alteration

–

The next–lower decimal place flashes and requests a value alteration

–

The next–lower decimal place flashes and requests a value alteration

–

The next–lower decimal place flashes and requests a value alteration

–

Storing the difference value

–

Indication of the valid course value on the gyro compass and on all repeater compasses connected

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

With that, the appropriate zero position for the encoder is determined. The display in the gyro compass now indicates the valid compass course which is also received by the repeaters via the corresponding interface. – Read out the difference value (alignment error) (see Point 1.9, Step 5) and enter it into the table found on the inner surface of the door ALIGNMENT ERROR (Type 110–800 and 110–804) or on the supporting plate (Type 110–806). –78.5

Table for Alignment Error with Typ 110–806

It is absolutely necessary to make this entry as – if the sensor electronics is replaced – the difference value is required to ascertain the reference course for the new PCB! (See Section 2.3.4.1) – After inputting the difference value, close the door of the casing, pay attention to ground strap.

Edition: 05. Mar. 1999

1 – 13

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1.9

Readout of the Gyro Compass Data Certain data of the gyro compass can be indicated on the display of the gyro compass, e.g. for servicing purposes: OFF

– Switch B11 / H to position OFF

OPEN

ON

A

Indications

B

C

D

E

F

G

H

Comments, Notes Indication of the r.o.t. value (rate of turn) in ° / s. With the ship berthed at the pier, the value is 0. A rate of turn direction with negative sign is indicated with a point behind the first decimal digit. by actuation of the key B14, call up further datas in the following order: Temperature of the supporting liquid in ° C. Desired value: 50 °C ±1 °C

Step 1

Step 2

Sum of gyro current and pump current (for start or operation, resp.) in mA. Desired value: start 410 mA ±50 mA operation 290 mA ±50 mA

Start

Operation

Height of gyrosphere with operating temperature in mm. Desired value: 1.0 mm to 2.3 mm Desired value for optimal operating conditions: 1.9 mm

Step 3 (up to software version P02 E02.00)

Step 3 (from to software version P02 E02.01)

Gyro compass is available

Height of gyrosphere at operating temperature is correct.

Height of gyrosphere is not correct! no appears with height of gyrosphere < 0.8 mm

Gyro compass is not available (E7)

Also with the compass available, the height of gyrosphere may be out of tolerance, therefore, conduct the Section 1.10 now. 2771E/110–800.DOC032

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Edition: 30. May 1997

Gyro Compass STANDARD 20 Service Manual

Anzeigen

Technical Documentation

Bemerkungen, Hinweise

Conductance of the supporting liquid with operating temperature in µS / cm. Desires value: 390 µS / cm ... 790 µS / cm, (range of tolerance) (see also Section 1.10)

Step 4

Step 5

Difference of between the ship’s ahead course and the encoder value in °. (alignment error)

As Step 5 with the decimal point shifted to the left. Herein, the first segmant indicating either or .

Step 6

Signification:

= negative value = positive value

Edition: 14. July 1997

Step 7

Encoder value in °.

Step 8

As Step 7 with the decimal point shifted to the left

Step 9

Settling time in min. Indication is given from 0 to max.180 min. A higher value is not displayed.

Step 10

Operating time (gyrosphere running time) in weeks. 999 weeks are displayed as a maximum.

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Anzeigen

Bemerkungen, Hinweise Error Logbook. the error that has occured last is indicated (e. g. E04).

Step 11

From software version P02 E01.00 on: The error logbook comprises a register with 16 lines;16 error entries are possible. OFF

Calling up the register: – Set DIP switch B11 / G to OFF position

OPEN

ON

A

B

C

D E

F

G H

Under position 01 the error that has occured last is indicated, e. g. E4. On actuating the key B14 the last error but one can now be called up, e. g. E5. Errors that have occured before are to be called up with key B14, 16 error entries can be indicated as a maximum; then the display starts again from the beginning, e. g.: 16 – 7 01 – 4 02 – 5 After readout of all errors that have accumulated: – Set DIP switch B11 / G to ON again.

Step 12

Sum of all automatic turn–on procedure occured after errors have appeared.

Step 13 Pending warnings.

Warnings (cont.) If no warnings are pending, only the c appears; the other digits are dark. (see Table ’Warnings’, Section 2.3.1)

Step 14

z. B.: Step 15

Current software program version of the gyro compass.

After readout of all compass data:

2771E/110–800.DOC032

Set DIP Switch B11 / H to ON again!

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Edition: 30. May 1997

Gyro Compass STANDARD 20 Service Manual

1.10

Technical Documentation

Checking and Adjusting the Height of Gyrosphere For operation of the gyro compass with optimal height the following prerequisites must be fulfilled: – Always push both tubes with spec. length of the tube (onto the pump unit and the outer sphere) (see Fig. 1–8) up to the stop on the connections. – Conductance (see Step 4 in Section 1.9) L = 420 ... 430 µS/cm – Adjustment of the height of the gyrosphere under the above conditions: Indications

Comments, Notes Carry out the procedure in Section 1.9 up to Step 3

Step 3 (from software version P02 E02.01 on)

OFF OPEN

additionally switch G to position OFF ON

A

B

C

D E

F

G H

Indication of the direction of the rotation at the potentiometer (see Fig. 1–8) for the flow control of the pump, which effects the correction of the gyrosphere height: –

Indication c (clockwise): gyrosphere too high

–

Indication cc (counterclockwise): gyrosphere too low

–

Turn carefully the potentiometer to the required direction until the indication HYES appears

–

Set switch G to position ON again.

86 mm

75 mm

cc c Fig. 1–8: Position of the potentiometer for the adjustment of the capacity of pump Manual measurement of the height of gyrosphere refer to Page 2–5, Fig. 2–3 Edition: 05. Mar. 1999

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1.11

Switching off the Follow–up System of the Gyro Compass The follow–up system will automatically be switched on only from a supporting liquid temperature of ≥45 °C. For servicing purposes (e. g. correct follow–up of course indications on the repeater compasses), the follow–up system can be switched off as follows:

OFF

– Set DIP switch B11 / G to OFF = follow–up system OFF.

OPEN

ON

A

Indications

B

C

D

E

F

G

H

Comments, Notes

With the follow–up system switched off, the digital display now indicates the last course value with an illuminated point added to the last decimal digit.

The outer sphere can now manually be turned into any position, the digital display always indicating the corresponding angular value. – Set DIP switch B11 / G to ON again = follow–up system ON.

Indications

Comments, Notes

The digital display now indicates the supporting liquid temperature for a short time (during follow–up) and then again the actual course with – for a duration of approx. 1 min – an illuminated decimal point added to the last digit.

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Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

1.12

Technical Documentation

Test to be performed during Settling Phase or Normal Operation resp. With this test, the function of the digital display, of the fan and of the stepping motor (follow–up system) can be tested.

OFF

– Switch B11 / F to position OFF

OPEN

ON

A

B

C

D

E

F

G

H

– Actuate key B14 (Abb. 6) Indications

Comments, Notes Whilst the key is depressed: – On the digital display, all luminous segments are lighted. – The fan must be in operation. – If the operating temperature is still t < 45 °C, the follow–up system switches on. The stepping motor turns the outer sphere to the instantaneous course value of the gyro– sphere. With t > 45 °C, the follow–up system has already switched on; therefore, it is not necessary for the stepping motor to turn the outer sphere to the instantaneous course value.

After test: – Switch B11 / F to position ON

Edition: 14. Febr. 1997

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1.13

Settling Time Bridge–over For the purpose of checking the gyro compass during short–time switch–off, the following settling time of 3 h need not be waited for; the settling time can be ”bridged”. The gyro compass then signalizes ”available”. Indications

Comments, Notes During settling time: – Digital display indicates the heading with a full stop behind the last position. Heading value still imprecise and not usable!

– Set switch C to position OFF

OFF

– Actuate the key B14

ON

OPEN

With that, the settling phase is ’bridged’:

A

Indications

C

D

E

F

G

H

Comments, Notes

–

After the test:

B

Digital display without a full stop behind the last position.

– Set switch C to position ON The gyro compass equipment continues to indicate a course value in the settled condition, although the gyro compass has not yet settled! In order to visualize the settling process, switch the equipment off and then on again.

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Edition: 07. Nov. 1997

Gyro Compass STANDARD 20 Service Manual

1.14

Technical Documentation

Clear Register The values listed in Section 1.9, Steps 10 to 12, can be reset to 0.

OPEN

OFF

– Switch B11 / H to position OFF

ON

A

B

C

D

E

F

G

H

– By means of key B14 (fig. 1–6), select the desired step, e. g.:

Indications

Comments, Notes

Step 11

Error logbook. The error that has occurred last is indicated

OPEN

OFF

– Switch B11 / F to position OFF

ON

A

Indications

Step 11

B

C

D

E

F

G

H

Comments, Notes

–

By means of key B14, reset the hole values to 0.

In the same way, the stored operating time (Step 10) and the stored sum of all automatic switching–on procedures (Step 12) can be erased. – Set switch B11 / F and H on position ON again!

Edition: 14. Febr. 1997

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Gyro Compass STANDARD 20 Service Manual

1.15

Adjustment of the Polarity for the R.o.T. Output Signal The R.o.T. output signal is set to polarity positive (+) for Raytheon Anschütz devices when the ship is turning to port. For devices with polarity ’–’ to port, the sign of the output signal can be changed as follows:

OFF

– Set switch B11 / B to position OFF

OPEN

ON

A

Indications

B

C

D

E

F

G

H

Comments, Notes Indication of the polarity of the R.o.T. output signal: –

Polarity ’+’ or

–

Polarity ’–’

With push–button B14 (Fig. 1–6) the polarity can be changed After changing: – Set switch B to position ON again

1.16

Measuring the Pick–off Voltage1) The voltage of between the outer sphere and the gyrosphere must be as low as possible. With a voltage level corresponding to an angular difference of between outer sphere and gyrosphere of approx. 0.04°, the outer sphere is caused to follow up the gyrosphere. This value must not be exceeded.

OFF

– Set switches B11 / F and H to position OFF

OPEN

ON

A

Indications

B

C

D

E

F

G

H

Comments, notes

–

Difference value in ° A permanent difference value ≥ 0.04° with the ship at rest (ship made fast to the pier) suggests a defect.

1) from

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software version P02 E01.00 on

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Edition: 07. Nov. 1997

Gyro Compass STANDARD 20 Service Manual

2

Care, Maintenance and Shipboard Repair

2.1

Safety Regulations

Technical Documentation

Warning! Use care during maintenance and repair to avoid contact with energized electrical conductors. Applicable safety regulations must be followed, such as VDE, VBG 4, OSHA 1919, and other consensus safety standards. Caution! Maintenance and repair must be performed by trained and qualified personnel who are knowledgeable in equipment safety requirements! Device may be damaged! Exchange of spare parts only with the supply voltage switched off.

To avoid damaging the cross–slotted screws during assembly and disassembly, use a screwdriver of the model POZIDRIV.

Edition: 25. Aug. 1999

2–1

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Gyro Compass STANDARD 20 Service Manual

2.2

Maintenance

2.2.1

Maintenance Schedule

Care and Maintenance

Time Interval

Cross Reference

1

Exchanging the supporting liquid

every 3 years

2.2.2

2

Exchanging the distilled water

every 3 years

2.2.2

Ser. No.

Maintenance of the gyro compass is restricted to exchanging the supporting liquid, the renewal of the distilled water and the appertaining gaskets every three years. To avoid failure of the device, be sure to check the level of the supporting liquid regularly (see Section 2.2.2).

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Edition: 10. Mar. 1998

Gyro Compass STANDARD 20 Service Manual

2.2.2

Technical Documentation

Checking the Level of the Supporting Liquid

Check the level of the supporting liquid only while the ship is lying in a harbor.

2.2.2.1

Check Performance – Unscrew two screws from the upper part of the door of the gyro compass casing, lift out the door, pay attention to ground strap (not for type 110–806). – Switching off the Follow–up System of the Gyro Compass (see Fig. 2–1):

Gyro compass STANDARD 20 must be in operation!

OFF

– Set DIP switch B11 / G to OFF = follow–up system off.

OPEN

ON

A

B

C

D

E

F

G

H

The outer sphere can now manually be turned into any position, the digital display always indicating the corresponding angular value. – Hold the bottom of the quick–release fasteners with both hands (refer to Fig. 2–1) and release they by pressing with your thumbs. – Carefully turn the outer sphere 90° and repeat the same procedure with the other quick release fasteners. The outer sphere is now open to view and can be removed.

Edition: 05. Mar. 1999

2–3

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Gyro Compass STANDARD 20 Service Manual

Switch B11 OFF OPEN ON

A

B

C D E

F

G H

Outer sphere, pump and gyro system

Fig. 2–1:

Removing the Outer Sphere from the Compass Casing and Switch B11

– Continue to hold the outer sphere with both hands, lower it slightly (thereby releasing the locking device) and carefully remove it from the compass casing and put it on the three fixed pins in a horizontal position (refer to Fig. 2–2); cable connection must be preserved!

Caution! Risk of tilt–over!

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Technical Documentation

Pins

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Fig. 2–2:

Put down Outer Sphere

– Check the supporting liquid level on the measuring cone (see Fig. 2–4); – Unscrew the red plastic screw and check the liquid level of the distilled water by the dipstick, Type 148–472 (Depot Maintenance Tools) (see Fig. 2–3). Height of the Gyrosphere approx. 2 mm Gyrosphere rests in the outer sphere! Reference: Surface measuring cone normal

max. (230cm3)

min. (50cm3) Level of the dist. Water

Fig. 2–3: Edition: 05. Mar. 1999

Checking the Level of the dist. Water and the Height of the Gyrosphere 2–5

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Gyro Compass STANDARD 20 Service Manual

If the level of the supporting liquid is under the label ’min.’ of the dipstick, distilled water must be added acc. to Section 2.2.2.2. Exchange the supporting liquid acc. to Section 2.2.3, when: – the liquid level is no more sensible on the measuring cone and – the liquid level is under ’min.’, checked at the dipstick, – the last changing of the supporting liquid was carried out 2 to 2,5 years ago.

2.2.2.2

Refilling Operation of Distilled Water With Dipstick (Refer to Fig. 2–3): – Fill in distilled water at the red screw and check the precise height of the distilled water level with the dipstick Dipstick not available (refer to Fig. 2–4): – Pour out remaining distilled water through the filler neck (red) by an injector (tool supplied). – Measure out 230 cm3 of distilled water – Fill in this portion of distilled water at the red screw

Filler

red

green

black Gaskets

destilled Wasser and here

Measuring cone

Top view measuring cone Fluid level: good/OK

too low

Fig. 2–4:

2771E/110–800.DOC032

Refilling Double–distilled Water

2–6

Edition: 05. Mar. 1999

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

Continue after Measuring with and without Dipstick: – Screw the red screw back into position, observing the sealing – Unscrew the two other plastic screws (green, black) from the upper outer sphere – Add distilled water in at the green plastic screw until the condition ’Fluid level good / OK’ is reached (refer to Fig. 2–4). – Screw the green and black screws back into position, observing the sealing – Re–insert the outer sphere in the compass casing carefully

Caution! Pay attention to the two locking pins of the closure! They must not be damaged, as they ensure the correct angular position.

– With both hands, take hold of the outer sphere and bring it to below the snap closures of the pendulum joint (see Fig. 2–1). – With your thumbs, press down two snap closures and make them lock into place – Carefully turn the outer sphere through 90° and repeat the same procedure for the other two snap closures.The outer sphere is now fast to the pendulum joint. OFF

– Set DIP switch B11 / G to ON = follow–up system on.

OPEN

ON

A

B

C

D

E

F

G

H

– Shut the door of the binnacle, pay attention to ground strap.

Edition: 05. Mar. 1999

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2.2.3

Exchanging the Supporting Liquid and the Distilled Water

2.2.3.1

Removing the Outer Sphere from the Compass Casing – Switch off the 24 V supply voltage of the STANDARD 20 equipment

Caution! When the gyro compass is switched off, the rotors come to a standstill not before a running–down time of approx. 15 to 30 min has elapsed. During this time, no intervention in the gyro compass must be made. The gyrosphere might be damaged !

– Unscrew two screws from the upper part of the door of the gyro compass casing, lift out the door, pay attention to ground strap (not for type 110–806). – Loosen the safety screws of the plug from the small board on the outer sphere and draw off the plug (see Fig. 2–5).

Small plug Outer sphere, pump and gyro system

Fig. 2–5:

Removing the Outer Sphere from the Compass Casing

– Hold the bottom of the quick–release fasteners with both hands (refer to Fig. 2–5) and release they by pressing with your thumbs. – Carefully turn the outer sphere 90° and repeat the same procedure with the other quick release fasteners. The outer sphere is now open to view and can be removed. 2771E/110–800.DOC032

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Edition: 05. Mar. 1999

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Technical Documentation

– Continue to hold the outer sphere with both hands, lower it slightly (thereby releasing the locking device) and carefully remove it from the compass casing and put it on the three fixed pins (refer to Fig. 2–6).

Caution! Risk of tilt–over!

Loosen 6 screws

Pins

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Fig. 2–6:

Edition: 10. Mar. 1998

Outer Sphere (removed) without Plug

2–9

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Gyro Compass STANDARD 20 Service Manual

2.2.3.2

Pouring away the Supporting Liquid and the Distilled Water (refer to Fig. 2–7) – Unscrew the green plastic screw in order to deaerate the system – Unscrew the black plastic screw – Hold the outer sphere with both hands and pour away the supporting liquid (special mea– sures of disposal are not necessary). Supporting liquid must not be re–used! – Unscrew the red plastic screw from the upper outer sphere and pour out remaining dis– tilled water by the injector

Supporting liquid Green

Black Sealing ring

Dist. water Red

Measuring cone

Sealing ring

Fig. 2–7:

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Plastic Screws in the Outer Sphere

2 – 10

Edition: 10. Mar. 1998

Gyro Compass STANDARD 20 Service Manual

2.2.3.3

Technical Documentation

Taking the Gyrosphere out of the Outer Sphere Special tools required: Suction cup tools supplied Injector – Unscrew the six screws that connect the upper outer sphere with the lower outer sphere (refer to Fig. 2–6) – Remove the upper outer sphere, observing the cable loom from the lower outer sphere to the small board (refer to Fig. 2–8)

Suction cup

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Fig. 2–8:

Upper and Lower Outer Sphere Separated – Taking out and Inserting the Gyrosphere

– Lift the gyrosphere from the lower outer sphere with the suction cup (refer to Fig. 2–8) and store it in a safe place – Pour out the remaining supporting liquid from the lower outer sphere

Edition: 10. Mar. 1998

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2.2.3.4

Filling up the new Liquids – Place carefully the gyrosphere from its safe place with the suction cup in the lower outer sphere (refer to Fig. 2–8) – Replace the sealings (refer to Fig. 2–7) – Place the upper outer sphere back on the lower outer sphere

Observe the sealing between the outer sphere shells (refer to Fig. 2–7)!

– Screw the six screws back on (refer to Fig. 2–6) – Fill up with new distilled water and fresh supporting liquid (see Fig. 2–9)

Observe the order of a) to g) exactly at all times!

Filler

Dist. water Supporting liquid Red Green

Black Gaskets

Red label Dist. water

Fig. 2–9:

2771E/110–800.DOC032

Measuring cone

Filling in the Liquids

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Edition: 10. Mar. 1998

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

a) Place the filling device on the bottle with distilled water (red label) b) Fill in the entire distilled water (230 cm3) at the red screw c) Screw the red screw back into position, observing the sealing d) Remove the filling device from the empty bottle of distilled water and place it onto the bottle with supporting liquid (green label) e) Fill in the 840 cm3 contents of the bottle at the green screw When carrying out this procedure, make sure that the 840 cm3 are filled in when the measuring cone shows the following:

This view is seen only to beginning of operation (after first filling–in or after changing the supporting liquid, resp.); during operation the dark circle has been smaller (refer to Section 2.2.2.2). f) The remainder of the supporting liquid must be poured away (special measures of disposal are not necessary). g) Screw the green screw back into position, observing the sealing h) Screw the black screw back into position, observing the sealing

Edition: 05. Mar. 1999

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2.2.3.5

Putting in the Outer Sphere into the Compass Casing (see Fig. 2–10) – Re–insert the outer sphere in the compass casing carefully:

Caution! Pay attention to the two locking pins of the closure! They must not be damaged, as they ensure the correct angular position.

– With both hands, take hold of the outer sphere and bring it to below the snap closures of the pendulum joint.

Pendulum joint

Small plug

Outer sphere

Fig. 2–10: Putting in the Outer Sphere into the Compass Casing

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Gyro Compass STANDARD 20 Service Manual

Technical Documentation

– With your thumbs, press down two snap closures and make them lock into place – Carefully turn the outer sphere through 90° and repeat the same procedure for the other two snap closures. The outer sphere is now fast to the pendulum joint. – Put the cable with plug counterclockwise (viewed from above) around the outer sphere and fasten the plug to the small PCB of the outer sphere; tighten safety screws. – Shut the door of the binnacle, pay attention to ground strap. The gyro compass is once again ready for work and can be put into operation by switching on the 24 V supply voltage.

Edition: 05. Mar. 1999

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Gyro Compass STANDARD 20 Service Manual

2.3

Shipboard Repair

Before carrying out repairs, we recommend that you read through the corresponding sections in Chapter 3 ’Construction and Operating Principle’.

2.3.1

Signalling in Case Warnings have occurred To avoid failure of the device, pay attention to the warnings indicated on the digital display, and eliminate the cause in good time.

After one or more warnings have occurred, the decimal point is flashing as long as the warning is pending. By pressing the key B14 (see Fig. 1–6), the warnings ars indicated on the digital display .

Decimal point

The key is accessible after the door has been removed. For this: – Screw out two screws from the upper part of the door of the gyro compass casing, lift out the door, pay attention to ground strap.

Digital display after first key depression (keep key pressed down) Digital display after second key depression (keep key pressed down)

The following warnings are displayed:

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Edition: 05. Mar. 1999

Gyro Compass STANDARD 20 Service Manual

2.3.2

Search Aids in Case of Warnings

Code of Warning c1

Technical Documentation

Type of Warning 1

Possible Cause

Fan, restricted function

1.1

Cable contacts out of order

1.2

Cooling air supply disturbed

Measure 1.1.1 Check cabling (see Section 2.3.4) 1.2.1 Clean suction holes in the bottom or air outlet holes (fan grid)

c2

c3

2

3

Heating, restricted function

Temperature > 65 °C

2.1

Cable contacts out of order

2.1.1 Check cabling (see Section 2.3.4)

2.2

Heating cartridge defective

2.2.1 Exchange heating cartridge (see Section 2.3.5.4)

3.1

Ambient temperature too high (> 55 °C)

3.1.1 Switch on air conditioning

3.2

Fan with restricted function

3.2.1 Check fan; exchange, if applicable (see Section 2.3.5.5)

c4

4

Temperature controller, restricted function

4.1

Temperature sensor defective

4.1.1 Exchange temperature sensor (see Section 2.3.5.3)

c5

5

Ship’s mains interruption with t ≥ 45 °C

5.1

Ship’s mains disturbed

5.1.1 Check ship’s mains

c 6 *)

6

Height of gyrosphere out of tolerance

6.1

Pump operation disturbed

6.1.1 Inform Raytheon Anschütz Service

Example:

Heating and temperature controller with restricted function

After the cause of the warning ’Ship’s mains interruption (c5)’ has been eliminated, the point behind the lost digit will be alight for 3h; one starts out with the idea that during the time of voltage interruption a course change took place and, therefore, the gyro compass is forced to settle anew.

*) Valid from software version P02 E02.02

Edition: 30. Apr. 1999

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2.3.3

Aids to Trouble Shooting After an error has occurred, the course information is switched off. The gyro compass then makes up to 4 re–starting attempts. After having made a 4th fruitless attempt, the gyro compass remains switched off. The number of starting attempts as well as the last occurred error are stored and can be visualized on the digital display by calling up the compass data (Section 1.9).

Code of Error

Type of Error

Possible Cause

Measure

E1

1

Operating voltages in compass faulty

1.1

Sensor electronics defective

1.1.1 Exchange sensor electronics (see Section 2.3.5.1)

E2

2

Gyro supply faulty

2.1

Sensor electronics defective

2.1.1 Exchange sensor electronics (see Section 2.3.5.1)

E3

3

Encoder faulty

3.1

Cabling out of order

3.1.1 Check cabling (see Section 2.3.4)

3.2

Sensor electronics defective

3.2.1 Exchange sensor electronics (see Section 2.3.5.1)

3.3

Encoder defective

3.3.1 Call Raytheon Anschütz Service

4.1

Cabling out of order

4.1.1 Check cabling (see Section 2.3.4)

4.2

Sensor electronics defective

4.2.1 Exchange sensor electronics (see Section 2.3.5.1)

4.3

Gyrosphere defective

4.3.1 Exchange gyrosphere (see Section 2.3.5.2)

5.1

Cabling out of order

5.1.1 Check cabling (see Section 2.3.4)

5.2

Toothed belt jumped off

5.2.1 Put on the toothed belt again

5.3

Sensor electronics defective

5.3.1 Exchange sensor electronics (see Section 2.3.4.1)

5.4

Step motor defective

5.4.1 Call Raytheon Anschütz Service

5.5

Gearing out of adjustment

5.5.1 Call Raytheon Anschütz Service

6.1

Cabling out of order

6.1.1 Check cabling (see Section 2.3.4)

6.2

Temperature sensor defective

6.2.1 Exchange temperature sensor (see Section 2.3.5.3)

6.3

Sensor electronics defective

6.3.1 Exchange sensor electronics (see Section 2.3.5.1)

7.1

Sensor electronics defective

7.1.1 Exchange sensor electronics (see Section 2.3.5.1)

7.2

Gyrosphere defective

7.2.1 Exchange gyrosphere (see Section 2.3.5.2)

7.3

Pump defective

7.3.1 Call Raytheon Anschütz Service

E4

E5

E6

E 7 *)

4

5

6

7

Gyro current faulty

Follow–up faulty

Temperature sensor breakdown

Height of gyrosphere out of tolerance

*) No longer valid from software version P02 E02.02

2771E/110–800.DOC032

2 – 18

Edition: 30. Apr. 1999

Gyro Compass STANDARD 20 Service Manual

Code of Error E8

E 9 *)

Type of Error 8

9

Breakdown in heating

Overtemperature > 70 °C

*)

2.3.4

Possible Cause

Technical Documentation

Measure

8.1

Cabling out of order

8.1.1 Check cabling (see Section 2.3.4)

8.2

Heating cartridge defective

8.2.1 Exchange heating cartridge (see Section 2.3.5.4)

8.3

Temperature fuse defective

8.3.1 Exchange temperature fuse (see Section 2.3.5.4)

8.4

Sensor electronics defective

8.4.1 Exchange sensor electronics (see Section 2.3.5.1)

9.1

Cabling out of order

9.1.1 Check cabling (see Section 2.3.4)

9.2

Ambient temperature too high (> 55 °C)

9.2.1 Switch on air conditioning

9.3

Sensor electronics defective

9.3.1 Exchange sensor electronics (see Section 2.3.5.1)

9.4

Temperature sensor defective

9.4.1 Exchange temperature sensor (see Section 2.3.5.3)

No longer valid from software version P02 E02.02

Checking the Cabling – Switch off the STANDARD 20 gyro compass equipment by switching off the 24 V supply voltage

Caution! When the gyro compass is switched off, the rotors come to a standstill not before a running–down time of approx. 15 to 30 min has elapsed. During this time, no intervention in the gyro compass must be made. The gyrosphere might be damaged!

– Unscrew two screws from the upper part of the door of the gyro compass casing, lift out the door, pay attention to ground strap (not for Type 110–806) – Check visible cables (see Fig. 2–11) for crack or break – Check fastening of the plug on the temperature PCB.

Edition: 30. Apr. 1999

2 – 19

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

Cable

Plug contact

Cable

Plug contact

Fig. 2–11: Cabling in the Gyro Compass

2771E/110–800.DOC032

2 – 20

Edition: 30. Apr. 1999

Gyro Compass STANDARD 20 Service Manual

2.3.5

Technical Documentation

Exchanging of Parts

Caution! Device may be damaged! Exchange of spare parts only with the supply voltage switched off.

2.3.5.1

Sensor Electronics – Unscrew two screws from the upper part of the door of the gyro compass casing, lift out the door, pay attention to ground strap (not for Type 110–806) – Unscrew 6 screws (refer to Fig. 2–12)

3 screws

3 screws

Fig. 2–12: Fastening Screws for the Sensor Electronics

Edition: 05. Mar. 1999

2 – 21

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

– Place a middle–sized screwdriver (max. 5 mm diameter) into the blind hole of the supporting plate (refer to Fig. 2–13) from below through the hole in the sensor electronics and use it as lever to pull out the sensor electronics carefully.

Sensor elec– tronics PCB

Plug group

ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ ÉÉ

Fig. 2–13: Lifting out the Sensor Electronics

– Carefully remove the printed board and replace it – Assembly/re–assembly in the reverse order. – Put the gyro compass equipment STANDARD 20 into operation again by switching on the 24 V supply – Read the difference value (alignment error) from the inner surface of the door and, with this value in acc. to the following description, Sections 1 to 3, calculate the requisite new value and enter it into the installed new sensor electronics PCB.

It is indispensable to carry out this last point, as the reference course, depending on the installation position of the compass, is still not stored on the new PCB. Otherwise, the course indication of the gyro compass would be incorrect.

2771E/110–800.DOC032

2 – 22

Edition: 10. Mar. 1998

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

(1) General information to put in the reference course During the first putting into operation, the gyro compass has been adapted to the mounting site. The difference value (alignment error) from this is noted inside of the door. With this value the new reference course has to be calculated and entered again. Pre–condition: – The course is indicated on the digital display after restarting the equipment (settling time of at least 1 h). (2) Calculation of the value to be entered by taking into account the difference value Read–out and note the encoder value acc. to Section 1.9 Steps 7 and 8. Encoder value plus or minus difference value (dependent on sign) Example: Encoder value: 256.9° Difference value from table on the inside of the door: –78.5° Value to be entered: (3) Putting–in of the calculated course value:

Edition: 10. Mar. 1998

2 – 23

178.4° see Section 1.8.1 (2)

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

2.3.5.2

Gyrosphere Perform the operations acc. to Section 2.2.3; but under Section 2.2.3.4: – By means of the suction cup, insert carefully the new gyrosphere into the lower hemi– sphere (see Fig. 2–4). – Exchange existing sealings After assembly, the gyro compass must be set in operation and the compass zero point (reference course) checked acc. to section 1.8 and corrected if necessary. For gyro compasses with built–in coarse synchro, the synchro zero point must also be checked and possibly corrected acc. to section 2 ’Zeroing of synchro and sin/cos potentiometer’ in the appendix of the service manual.

2771E/110–800.DOC032

2 – 24

Edition: 02. July 1999

Gyro Compass STANDARD 20 Service Manual

2.3.5.3

Technical Documentation

Temperature Sensor and Overtemperature Fuse Perform the operations stated under Section 2.2.3.1. Then: – Draw off the plug contacts B2 and B3 (see Fig. 2–14) – Unscrew the two screws by means of which the outer sphere PCB is held – Carefully take off the PCB Plug contact, upper calotte OK

Plug contacts B2 and B3

2 screws

Overtemperature fuse

Temperature sensor

Fig. 2–14: Outer Sphere PCB

The PCB carries the temperature sensor N1 and the overtemperature fuse E1 (see Fig. 2–14); both are provided with heat conducting paste. If the temperature fuse is defective: – Exchange the temperature fuse, apply heat conducting paste to the new temperature fuse Edition: 02. July 1999

2 – 25

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

If the temperature sensor is defective, the complete PCB must be exchanged: – Loosen all cable connections (W1, W2, RK, 3, 1, 2, UK and OK) at the plug contacts (see Fig. 2–14 and Fig. 2–15)

Reversing contact W1

Reversing contact W2

3

2 1

Conductivity sensor RK Plug contact, lower calotte UK

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ UK

2 1 3 RK W1 W2

Fig. 2–15: Cable Connections to the Outer Sphere PCB – Exchange outer sphere PCB – Re–establish plug contacts; the cable ends are correspondingly lettered Apply heat conducting paste to the temperature fuse or temperature sensor, resp., and to the corresponding holes in the outer sphere.

– Putting in the Outer Sphere acc. to Section 2.2.3.5

2771E/110–800.DOC032

2 – 26

Edition: 02. July 1999

Gyro Compass STANDARD 20 Service Manual

2.3.5.4

Technical Documentation

Heating Cartridge Perform the operations stated under Section 2.2.3.1. Then: – Carefully open the green screw on the outer sphere, thereby deaerating the outer sphere (see Fig. 2–16) Sealing ring Green

Vent hole

Heating cartridge

Sealing ring

Fig. 2–16: Exchanging the Heating Cartridge – Screw in the green screw again – Seal the vent hole in the measuring cone (adhesive tape) – Carefully place the outer sphere on a prepared support (polyfoam, foamed material) with the heating cartridge up; by this, the supporting liquid is prevented from running out, when the cartridge has been removed. Secure the outer sphere against rolling away! – Screw out four screws on the heating cartridge – Draw off the plug contacts B2 and B3 (see Fig. 2–14) – Carefully take out the heating cartridge; the heating cartridge dips into the supporting liquid – Insert new heating cartridge and exchange the sealing


Edition: 02. July 1999

2 – 27

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

Turn the heating cartridge in the opening in such a way that the plug contacts B2 and B3 can be plugged on again. – Screw in the four screws again; the longer one for the cable support – Putting in the Outer Sphere acc. to Section 2.2.3.5

2.3.5.5

Fan Perform the operations stated under Section 2.2.3.1. Then: – Draw off the compass cable from the distributor COMPACT or from the control unit, resp. – Draw out the sensor electronics (see Section 2.3.5.1) – Screw out all screws from the top of the compass casing except for the screw on the cable duct. – Lift out the supporting plate and place it – underside up – on a suitable support

Joint

Sensor electronics

Fan

Screws

Fig. 2–17: Fan on the Supporting Plate

– – – – – –

Screw off the plug of the fan Screw out the screws of the angle of fan (see Fig. 2–17) Screw off the four screws by means of which the fan is mounted on the angle Exchange the fan Re–assembly to be made in reverse order Putting in the Outer Sphere acc. to Section 2.2.3.5

2771E/110–800.DOC032

2 – 28

Edition: 02. July 1999

Gyro Compass STANDARD 20 Service Manual

2.3.5.6

Technical Documentation

Brush Group and Collector Ring Board Carry out all work as described below in section 2.2.3.1 . Then: – strip off the compass cable from the control unit at the COMPACT distributor – pull out the sensor electronics (refer to section 2.3.5.1) – unscrew all topside screws at the compass housing except for the screw at the cable lead–through plate – lift out the supporting plate and place it upside down on a suitable supporting surface – loosen the cable support at the joint (refer to Fig. 2–18) – unscrew the 6 screws that connect the joint with the toothed disc (refer also to Fig. 2–19/1) – remove the toothed belt – loosen the binder holding the cable at the toothed disc – remove the joint together with the toothed disc and the flange, thereby pulling out the cable through the drilling points – unscrew the 3 screws in the centre of the flange (refer to Fig. 2–19/2) – remove flange (refer to Fig. 2–19/3) with brush group (refer to Fig. 2–19/4) In some compasses, between flange and encoder casing (see Fig. 2–19/8) three or six spacers are mounted (see Fig. 2–19/A), which are held by three screws (Fig. 2–19/2). The spacers must be carefully saved.

cable support at joint

joint cable binder at toothed disc 6 screws

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Fig. 2–18:

Edition: 02. July 1999

Supporting Plate on Base

2 – 29

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

1

2 4 5

3

6

7

A 8

9

10

Fig. 2–19: Supporting Plate – Exploded Drawing – (abstract from the replacement parts list) 2771E/110–800.DOC032

2 – 30

Edition: 02. July 1999

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

a) Replacing the Brush Group: – unscrew the 3 screws (refer to Fig. 2–19/5) holding the brush group on the flange – Remove the protective cap from the new brush group

The brushes are polished and adjusted. Please do not touch!

– replace the brush group When mounting the brush group, press against the edge of the flange radially and then tighten the screws. This ensures that the brushes will be put in the correct position with regard to the collector rings. Do not touch the collector rings with your fingers!

b) Replacing the Collector Ring Board – unscrew the 6 screws (refer to Fig. 2–19/6) connecting the collector ring board (refer to Fig. 2–19/7) with the encoding housing (refer to Fig. 2–19/8) – replace the collector ring board

The new collector rings have been polished and adjusted in the factory. Please do not touch!

– When inserting the new collector ring board, only screw in the 6 screws but do not tighten them. First insert the sensor electronics and then tighten the 6 screws.

The sensor electronics serves here as an installation aid for correct positioning of the collector ring board.

–

Edition: 02. July 1998

Then pull the sensor electronics back out.

2 – 31

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

Assembly is carried out in the reverse order; the spacers (Fig. 2–19/A) must be inserted again. After assembly, the gyro compass must be set in operation and the compass zero point (reference course) checked acc. to section 1.8 and corrected if necessary. For gyro compasses with built–in coarse synchro, the synchro zero point must also be checked and possibly corrected acc. to section 2 ’Zeroing of synchro and sin/cos potentiometer’ in the appendix of the service manual.

2.3.4.6

Encoder Carry out disassembly work as described below in sections 2.2.3.1 and 2.3.5.6. Then: – unscrew the 4 screws (refer to Fig. 2–19/10) connecting the encoder housing with the supporting plate (refer to Fig. 2–19/9) – replace the encoder In older gyro compasses, the encoder is assembled in an additional housing. The new encoder is assembled without this housing.

After successful assembly, put the STANDARD 20 gyro compass into operation as described in section 1.7 and check the compass zero point (reference course) acc. to section 1.8, correcting it if necessary. For gyro compasses with built–in coarse synchro, the synchro zero point must also be checked and possibly corrected acc. to section 2 ’Zeroing of synchro and sin/cos potentiometer’ in the appendix of the service manual.

2771E/110–800.DOC032

2 – 32

Edition: 02. July 1998

Gyro Compass STANDARD 20 Service Manual

2.3.5

Technical Documentation

Pump Carry out disassembly work as described in section 2.2.3.1. Then: – unscrew the green plastic screw (refer to Fig. 2–20.) in order to ventilate the system – unscrew the black plastic screw (refer to Fig. 2–20.) – hold the outer sphere in both hands and pour out the supporting liquid; depending on its age, the supporting liquid may be able to be re–used. Carry out further disassembly in accordance with section 2.2.3.3.

red

green

black sealing ring measuring cone

sealing ring

Fig. 2–20.:

Edition: 02. July 1998

Plastic Screws in the Outer Sphere

2 – 33

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

Then: – lay the upper and lower outer spheres with their openings facing down onto a clean cloth (refer to Fig. 2–21.) in order to catch any remaining liquid.

ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉÉ Fig. 2–21.: Upper and Lower Outer Spheres with Openings facing Down

2771E/110–800.DOC032

2 – 34

Edition: 02. July 1998

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

– pull off the return pipe for the supporting liquid (refer to Fig. 2–22./2) from the conductivity sensor (refer to Fig. 2–22./1) – pull off the cable at the pump (multipoint connector and lower calotte UK; Fig. 2–11) – unscrew the 6 screws (refer to Fig. 2–22./3) holding the pump on the lower outer sphere – remove the entire pump including the rotor (refer to Fig. 2–22./4) – insert the new pump and the new rotor, re–utilizing the pump disc (refer to Fig. 2–22./5) – assembly is carried out in the reverse order

3

4 1 75 mm 5

2 86 mm

Fig. 2–22.: Lower Outer Sphere – Explosion Drawing (abstract from the replacement parts list)

Edition: 02. July 1998

2 – 35

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

2.4

Spare Parts Catalogue

The following replacement parts catalogue no is valid for the entire gyro compass with the main assemblies: – basic equipment STANDARD 20 Gyro Compass, Type 110–222 – gyrosphere, Type 111–006 – supporting liquid, Type 148–162 and – distilled water, Type 148–398

2.4.4

Notes on Ordering To ensure fast processing of replacement parts orders and to make sure that the correct replacement part is delivered, the following details are required: 1. Name of the ship 2. Raytheon Anschütz order number: e.g.: 610 0 61637 3. Device type (refer to type label) that the replacement part is required for: e.g.: STANDARD 20 Gyro Compass, Type 110 – 222 E014. 4. Exact designation of the replacement part from the specifications given in the replacement parts catalogue

Example: Stock No.

Designation

Drawing No.

3.600 089

Sensor PCB

110–222.101 E01

5. Required number of parts

2771E/110–800.DOC032

2 – 36

Edition: 02. July 1998

Kreiselkompaß STANDARD 20 GYRO COMPASS STANDARD 20 Type 110–800, 110–804, 110–806

Ersatzteilkatalog SPARE PARTS CATALOGUE

70

5 8 9

71

7

10 6

1 2

12 14

13

15

17 18 64 16

22

26

28 29

24

3

27

25

63

4

21 20

14.483

2 – 37

62

30

32 33 34 35

36 37

31

38

39 40

69

(44)

41

45 46 43

42

72

68

(44) 50 48

47 49

65

52 51

67

53 66 54 55 56

57

60 49 50 61

59 58

2 – 38

Kreiselkompaß STANDARD 20 GYRO COMPASS STANDARD 20 Type 110–800, 110–804, 110–806 Pos. Lager-Nr. Stock-No.

Benennung

Ersatzteilkatalog SPARE PARTS CATALOGUE

Designation

Zeichnungs-Nr. Part-No.

Stck. Qty.

Herst.-Code MFRC

Versorgungs-Nr. NATO Stock-No. Bemerkungen REMARKS

1

1.607 173

Schraube

SCREW

M 4x12 ISO 7045A4Z

6

D 8286

5305-12-303-5334

2

1.620 841

Scheibe

WASHER

4,3 DIN 433 A4

6

D 8286

3

3.600 089

Sensorkarte

SENSOR PCB

110-222.101 E01

1

D 2865

4

1.604 831

Schraube

SCREW

M 6x20 ISO 7046-2 A4-Z

2

D 8286

5

3.608 498

Gelenk

HINGE

110-222.11

1

D 2865

6605-12-343-6318

6

1.607 173

Schraube

SCREW

M 4x12 ISO 7045 A4-Z

4

D 8286

5305-12-303-5334

7

3.513 981

Scheibe

WASHER

110-222.01-005

1

D 2865

8

1.607 173

Schraube

SCREW

M 4x12 ISO 7045 A4-Z

6

D 8286

9

1.620 841

Scheibe

WASHER

4,3 DIN 433 A4

6

D 8286

10

1.504 729

Zahnscheibe z= 256

TOOTHED WHEEL z = 256

110-222.01-008

1

D 2865

11

wird in diesem Gerät nicht verwendet / not applicable in this unit

12

3.514 541

Flansch

FLANGE

110-222.01-012

1

D 2865

13

1.607 174

Schraube

SCREW

M 4x16 ISO 7045 A4-Z

3

D 8286

14

3.601 361

Schleifringgruppe

SLIP RING ASSEMBLY

110-222.X15

1

D 2865

15

1.607 252

Schraube

SCREW

M 3x8 ISO 7045 A4-Z

3

D 8286

16

3.601 361

Schleifringgruppe

SLIP RING ASSEMBLY

110-222.X15

1

D 2865

17

1.607 252

Schraube

SCREW

M 3x8 ISO 7045 A4-Z

6

D 8286

18

1.620 743

Scheibe

WASHER

3,2 DIN 433 X12 CR

6

D 8286

19

wird in diesem Gerät nicht verwendet / not applicable in this unit

20

1.607 177

Schraube

SCREW

M 4x30 ISO 7045 A4-Z

4

D 8286

21

1.620 841

Scheibe

WASHER

4,3 DIN 433 A4

4

D 8286

22

3.601 156

Elektr.-opt. Winkelgeber

ENCODER

110-222.X13

1

D 2865

23

wird in diesem Gerät nicht verwendet / not applicable in this unit

24

3.608 582

Lüfter, vollst.

FAN, COMPL.

110-222.08

1

D 2865

25

1.607 171

Schraube

SCREW

M 4x6 ISO 7045 A4-Z

4

D 8286

26

1.670 338

Zahnriemen

TOOTHED BELT

80315, 315 Z, 0,08"

1

C 2720

3030-12-343-5630

27

3.608 591

Schrittmotor, vollst.

STEPPING MOTOR, COMPL.

110-222.47

1

D 2865

6105-12-343-4375

28

1.607 173

Schraube

SCREW

M 4x12 ISO 7045 A4-Z

3

D 8286

5305-12-303-5334

29

1.620 841

Scheibe

WASHER

4,3 DIN 433 A4

3

D 8286

30

1.796 040

Haltenocken

CAM

J 252 R13-3

4

D 0680

31

1.796 041

Mutter

NUT

J 252 R43-3

8

D 0680

32

1.504 709

Schraube (grün)

SCREW (GEEN)

110-222.20-006

1

D 2865

33

1.793 964

O-Ring

RUBBER GASKET

8x2 SHA 70 EPDM

1

D 7040

34

1.504 731

Schraube (rot)

SCREW (RED)

110-222.20-004

1

D 2865

35

1.793 963

O-Ring

RUBBER GASKET

6x2 SHA 70 EPDM

1

D 7040

36

1.504 708

Schraube

SCREW

110-222.20-005

1

D 2865

37

1.793 963

O-Ring

RUBBER GASKET

6x2 SHA 70 EPDM

1

D 7040

38

3.600 144

Obere Hüllkugel

UPPER HEMISPHERE

110-222.X09

1

D 2865

39

1.607 174

Schraube

SCREW

M 4x16 ISO 7045 A4-Z

6

D 8286

40

1.620 830

Scheibe

WASHER

A 4,3 DIN 125 A4

6

D 8286

5998-12-343-5816

5305-12-303-5334

4140-12-343-3674

5310-12-158-2236

All depicted items which are not mentioned in the text are not applicable for this unit. Since further development may necessitate making modifications to existing equipment, its conformity with the relevant illustrations and drawings is not always ensured. RAYTHEON MARINE will be under no liability whatever that may arise from any such differences.

14.483

RA/S–SU 9912 EDITION 05

2 – 39

Kreiselkompaß STANDARD 20 GYRO COMPASS STANDARD 20 Type 110–800, 110–804, 110–806 Pos. Lager-Nr. Stock-No.

Benennung

Designation

Zeichnungs-Nr. Part-No.

Stck. Qty.

Herst.-Code MFRC

Versorgungs-Nr. NATO Stock-No. Bemerkungen REMARKS

41

1.793 965

O-Ring

RUBBER GASKET

160x3 SHA 70 EPDM

1

D 2305

42

3.608 966

Heizung, kompl.

HEATER, COMPL.

110-222.X02

1

D 2865

431

3.608 757

Hüllkugel-PCB

OUTER SPHERE PCB

110-222.22

1

D 2865

44

1.930 176

Wärmeleitpaste

HEAT CONDUCTING PASTE

45

1.607 267

Schraube

SCREW

M 3x6 ISO 7045 A4-Z

2

D 8286

46

1.620 706

Scheibe

WASHER

A 3,2 DIN 125 A4

2

D 8286

47

3.600 034

Lagerschale, kompl.

LOWER HEMISPHERE

110-222.X06

1

D 2865

48

1.601 179

Schraube

SCREW

M 2x4 DIN 912 A4

2

D 8286

49

1.621 641

Fächerscheibe

WASHER

A2,2 DIN 6798 X12 CR

3

D 8286

50

1.721 499

Flachstecker

FLAT PIN TERMINAL

D 2,2 2,8-0,8

3

D 8286

51

3.500 651

Schlauch

TUBE

110-222.20-012 (86 mm)

1

D 2865

52

1.793 967

O-Ring

RUBBER GASKET

64x3 SHA 70 EPDM

1

D 7040

53

3.608 916

Kalotte, unten

CALOTTE, BELOW

110-222.96

1

D 2865

54

1.793 964

O-Ring

RUBBER GASKET

8x2 SHA 70 EPDM

1

D 7040

55

1.793 968

O-Ring

RUBBER GASKET

54x3 SHA 70 EPDM

1

D 7040

56

1.504 705

Scheibe

DISK

110-222.20-007

1

D 2865

57

3.609 274

Pumpe, kompl.

PUMP, COMPL.

110-222.X04

1

D 2865

58

1.607 173

Schraube

SCREW

M 4x12 ISO 7045 A4-Z

6

D 8286

5305-12-303-5334

59

1.620 830

Scheibe

WASHER

A 4,3 DIN 125 A4

6

D 8286

5310-12-158-2236

60

1.610 077

Mutter

NUT

M 2 ISO 4032 A4

1

D 8286

61

1.601 177

Schraube

SCREW

M 2x8 DIN 912 A4

1

D 8286

62

1.502 520

Schiene

GUIDE

NB 07-009.00-062

2

D 2865

63

3.608 897

Kabel

CABLE

NB 03-914-3M

1

D 2865

64

1.604 602

Schraube

SCREW

M 4x10 DIN 965 A4

8

D 8286

65

1.500 297

Tragflüssigkeit

SUPPORTING LIQUID

148-162

1

D 2865

66

1.508 499

Destilliertes Wasser

DISTILLED WATER

148-398

1

D 2865

67

1.507 674

Kappe

FILLER PIPE

148-398.00-002

1

D 2865

Kreiselkugel

GYROSPHERE

111-006

1

D 2865

68

5998-12-343-5818

D 2865

69

1.793 966

O-Ring

RUBBER GASKET

12x2 SHA 70 EPDM

1

D 7040

70

1.796 039

Haltescheibe

WASHER

15 S 11-1CJ

4

D 0680

71

1.796 038

Verschlußzapfen

FASTENER

15 S 1-5-1AD

4

D 0680

72

1.762 141

Temperatursicherung

TEMP. FUSE (TCO)

874002085087 87°C/10A/220V AC

1

U 3832

6810-12-160-1000

Ersatzteile ohne Abbildung: Spare Parts without illustration: 3.608 939

Satz Dichtungen

SET OF GASKETS

110-222.X01

D 2865

3.600 4762

Hüllkugel, kompl.

OUTER SPHERE; COMPL.

110-222.X11

D 2865

1

Temperatursensor und Temperatursicherung einsetzen mit Pos. 44 Temperature Sensor and TCO to be inserted with Pos. 44

2

incl. Pos. 65 and 66

2 – 40

5330-12-343-3789

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

3

Construction and Operating Principle

3.1

Construction The Gyro Compass STANDARD 20 consists of the following main components: – Basic equipment of Gyro Compass STANDARD 20, Type 110 – 222, with – Supporting plate – Joint – Outer sphere and pump – Sensor electronics – Casing (Type 110–806 without casing) – Gyrosphere, Type 111 – 006, and – Supporting Liquid, Type 148 – 162 with Distilled Water, Type 148 – 398 Sensor electronics Supporting plate

Fan

Joint

Outer sphere, Pump and Gyro system Casing

Fig. 3–1: Edition: 19. Nov. 1998

Gyro Compass STANDARD 20 – Schematic Sectional Drawing 3–1

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

3.1.1

Supporting Plate The supporting plate (Fig. 3–2) – an aluminium cast construction with cooling ribs on its upper side – carries on its underside the electronics PCB, gear, joint and fan. The 360° suspension of the sensor is ensured by an encoder, centrally flanged on the supporting plate and with a resolution of 212 pulses/revolution. The pendulum joint for receiving the outer sphere is attached to its shaft as well as the slip–ring assembly with the flange– mounted toothed belt wheel. Via a toothed belt, a transmission ratio of i = 5.12 from the follow–up stepping motor to the outer sphere mounting is achieved via the pendulum joint. During a fine step of the stepping motor of 0.225°, therefore,0.044° / fine step are transmitted on the 360° shaft. Above the door, the supporting plate shows a window through which a 4–digit, 7–segment LED indication on the sensor electronics is visible. The LED indication shows the uncorrected course and – in coded form – status indications, warnings and errors. The slip–ring assembly has been designed as a PCB and contains 11 slip rings. Slip–ring assembly

Encoder

Cooling ribs

Follow–up stepping motor

Sensor elec– tronics PCB

Pendulum joint

Toothed belt wheel

Outer sphere mounting

Fig. 3–2:

2771E/110–800.DOC032

Supporting Plate – Sectional Drawing

3–2

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

3.1.2

Technical Documentation

Joint The pendulum joint that is directly flange–mounted on the encoder (Fig. 3–3) connects the outer sphere with the encoder; an absolute heading determination – free from gear back– lash – is therefore guaranteed. The pendulum joint is coupled to a damping. A damping body in a highly viscous liquid reduces the outer sphere vibration occurring during ship movement. A vibration isolation eliminates interference from outside by vibration and shock in the horizontal as well as in the vertical direction. Both assemblies – the pendulum joint with damping and the vibration isolation – are included by a bellows. This has a high stiffness during radial strain; on the other hand, the bellows gives way slightly in case of axial and angular strain.

Bellows

Damping body

Highly viscous fluid

Fig. 3–3:

Edition: 14. Febr. 1997

Joint – Sectional Drawing

3–3

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

3.1.3

Outer Sphere and Pump The outer sphere (Fig. 3–4) consists of two assemblies that are connected to each other by six screws.

3.1.3.1

Upper Outer Sphere Shell The flow guide for the supporting liquid is in this assembly and – centrally arranged – the conductive upper calotte.

Float valve

Buffer store

Distilled water

Upper calotte

Heating

Printed wiring board Temperature sensor

Upper outer sphere shell Reversing contacts

Gyrosphere

Return for supporting liquid Lower calotte

Lower outer sphere shell

Sensor for conductivity

Pump

Fig. 3–4: 2771E/110–800.DOC032

Outer Sphere and Pump – Sectional Drawing 3–4

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

A store results in the partition in the upper part of this assembly; this forms the reserve volume of the supporting liquid. By the formation of condensation, this store supplies distilled water to supplement the amount of supporting liquid in the area of the outer sphere. The amount to be supplemented is controlled by a float valve. In the return area, a heat cartridge has been built in for temperature regulation in the upper outer sphere. A transparent measuring cone serves for a visual check of the level of the supporting liquid and the horizontal positioning of the gyrosphere. A printed wiring board is mounted on the upper outer sphere shell; this board is connected via plug and cable trunk with the slip rings. There is also a temperature sensor on the board as well as an overtemperature fuse and a capacitor for the pump motor. The outer sphere is fastened to the pendulum joint by quick–release fasteners in the upper outer sphere shell.

3.1.3.2

Lower Outer Sphere Shell The lower outer sphere shell forms the actual liquid support for the gyrosphere. It also contains the electric reversing contacts at the height of the equator of the gyrosphere – required for the follow–up of the outer sphere – and the conductive lower calotte. The pump for the supporting liquid is in the lower part of the lower outer sphere shell. The supporting liquid is returned by a tube that guides the supporting liquid from the upper outer sphere shell to the suction area of the pump rotor. The sensor for measuring the conductivity has been built in here as well.

Edition: 14. Febr. 1997

3–5

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

3.1.4

Gyrosphere The gyrosphere (Fig. 3–5) contains the north–seeking two–gyro system. To reduce gas friction to both gyro rotors and to avoid oxidation, the gyrosphere is filled with gas (helium) and hermetically sealed. The gyrosphere is fitted with a conductive calotte at each pole – corresponding to the outer sphere. At the equator, there is a semi–circular conductive band for pick–off of the heading position.

Upper calotte

Rotor Rotor

Equator band

Lower calotte

Fig. 3–5:

2771E/110–800.DOC032

Gyrosphere – Sectional Drawing

3–6

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

3.1.5

Technical Documentation

Sensor Electronics The printed wiring board with the sensor electronics (Fig. 3–6) is arranged as plug–in board below the supporting plate. The following components are assembled on the board: – processing of the digital angular value of the encoder as well as conversion into a serial output signal – setting of the encoder to zero – reversing–contact signal–processing and control of the follow–up stepping motor – 400Hz supply for gyro and pump motor – evaluation of the height of the gyrosphere and conductivity of the supporting liquid – temperature regulation of the outer sphere group – digital heading display – monitoring of the gyro run–up and automatic connection of the follow–up system

Choke

Choke

Heat sink

Heat sink

Transformer

Controller

Fig. 3–6: Edition: 14. Febr. 1997

Probe

DIP switch

Sensor Electronics PCB 3–7

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

The sensor electronics PCB is connected via plugs to: – the slip rings – the stepping motor – the encoder, and – the fan

3.1.6

Casing The cylindrical casing is provided with a door; when the door is removed, a cutout with an angular range of approx. 100° and the total height of the casing will be available for assembly and service purposes. The door is attached to the casing; the transition region is sealed with rubber gaskets. The casing floor contains the fastening bore–holes for board assembly as well as centrally arranged perforations for the cooling air supply. A fan in the upper part of the casing supplies the air current required for any necessary cooling of the sensor. The top of the casing is covered by the supporting plate (refer to Section 3.1.1).

2771E/110–800.DOC032

3–8

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

3.2

Operating Principle

3.2.1

Gyro System (Refer to Fig. 3–7) The gyrosphere, in operation floating freely in the supporting liquid within the outer sphere, constitutes the north–indicating system. Two gyros installed in the gas–tight gyrosphere and driven by AC produce, in conjunction with the combined effects of the earth’s rotation and gravitation, a directive force which causes the gyrosphere to settle on the geographic north–south line. Two mechanically coupled gyros with gyro vector axes at right angles to each other are used in order to avoid errors caused by the ship’s roll and pitch motions. When the gyro compass system is switched on, the gyro rotors begin to run up. The gyrosphere now oscillates about the north–south direction under the effects of gravity and the earth’s rotation.

Resultant directive force

N Directive force Gyro I

Fig. 3–7:

Edition: 14. Febr. 1997

Directive force Gyro II

Gyro System – Principle

3–9

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

A damping system incorporated in the gyrosphere damps these oscillations until the gyrosphere comes to rest (approx. 3 hours) and the resultant vector axis of the gyro system indicates the north–south direction (Fig. 3–8).

Settling time (h) 1 div. = 10 min

0°

60°

120°

180°

240°

300°

360°

Settling curve

Fig. 3–8:

2771E/110–800.DOC032

Settling Curve

3 – 10

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

3.2.2

Technical Documentation

Hydrostatic, Dynamic Suspension and Centring of the Gyrosphere in the Outer Sphere (Refer to Fig. 3–9 and Fig. 3–11) When the compass equipment is switched on, the pump for the supporting liquid functions as well. The supporting liquid covers the gyrosphere and thereby forms the supporting bearing for the sphere. The weight of the gyrosphere and the specific gravity of the supporting liquid are adjusted exactly so that, with the gyro compass at operating temperature, the gyrosphere has a slight residual weight. This residual weight is cancelled by the liquid steam produced by the pump which thereby simultaneously centres the sphere. In this way, the gyrosphere floats freely in the outer sphere. A conductive tube is built into the fluid return line for the measurement of the conductivity of the supporting liquid. An alternating voltage at this location is constantly fed to a controller and evaluated there.

Sphere Return of supporting liquid Pump

Fig. 3–9:

Edition: 14. Febr. 1997

Hydrostatic Suspension – Principle 3 – 11

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

To determine the height of the gyrosphere, on the one hand the mean distance of the gyrosphere from the reversing contacts is used and on the other the mean distance of the gyrosphere from the calottes via resistance measurements. The resulting values are processed and evaluated in a controller.

3.2.3

Power Supply of the Gyrosphere (Refer to Fig. 3–10 and Fig. 3–11) The gyro rotors require an AC supply of 55 V/400 Hz in order to achieve a speed of rotation of approx. 12,000 rev./min.The electric current for supplying the gyro rotors passes via the calottes of the outer sphere through the slightly basic, and therefore conductive, supporting liquid to the calottes of the gyrosphere. The third phase required for the rotors is formed in the inside of the sphere with the aid of a capacitor.

Upper calotte

Equator band

M1

Reversing contact R1 W2 W1

R2 Reversing contact

Symmetrical transformer

Lower calotte

Outer sphere

Fig. 3–10: Principle of Current Transmission and Course Pick–off

2771E/110–800.DOC032

3 – 12

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

24VDC – Ship’s mains

Distributor COMPACT

DC/DC–converter

Follow–up stepping motor + control Opto– encoder 55V 400Hz

Heating

Gyro feed

0V

Power supply

Conductivity, temperature etc.

Opto–encoder Signal processing Heating control Microprocessor Interface Watchdog Display

Signal processing (Reversing contact signal, height, etc.)

µP

Heating control

Serial inter– face

RS 422 HEADING SERIAL

Watch– dog circuit

Heading display

Fig. 3–11:

Edition: 14. Febr. 1997

Block Diagram STANDARD 20

3 – 13

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

3.2.4

Electric Pick–off and Follow–up for Course Transmission (Refer to Fig. 3–10 and Fig. 3–11) At the equator of the sphere there is a conductive band; its ends are designed for pick–off of the sphere position with regard to the outer sphere. The pick–off has been designed as bridge circuit and is part of the follow–up system. The bridge circuit comprises the primary windings from the connected symmetrical transformer as well as both transfer resistances R1 and R2 of the supporting liquid between reversing contacts W1 and W2 of the outer sphere and the ends of the conductive band on the gyrosphere. When the ship changes direction, the outer sphere rotates against the gyrosphere. A counter–rotation of the transfer resistances R1 and R2 results. Due to the resulting asymmetry in the bridge circuit, an electric voltage that is dependent on the direction of rotation is produced. Via an amplifier, this voltage activates a stepping motor that makes follow–up the outer sphere via a toothed belt until the transfer resistances are balanced. The position of the outer sphere now once again corresponds with that of the gyrosphere. The sensitivity of the follow–up system is within the limits of static exactitude. In this way, the relation of the current heading to the azimuth is guaranteed. The symmetrical transformer required for follow–up is on the printed wiring board of the sensor electronics. A controller supplies digital control signals to integrated stepping motor components. A stepping motor then makes follow–up the outer sphere to approx. 0.05° of the gyrosphere by mechanical reduction. The gyro compass STANDARD 20 transmits the heading signal via the serial interface RS 422 HEADING SERIAL*) to the periphery.

3.2.5

Controlling the Temperature of the Outer Sphere Group An electronic sensor measures the temperature of the supporting liquid. Its signal is processed in a microcontroller. In case of under–temperature, this controller activates a heating cartridge and in case of over–temperature, it switches on a fan. In case of prolonged heating at over–temperature, a temperature fuse switches the heating off.

*) Ratheon Anschütz specific

2771E/110–800.DOC032

3 – 14

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

3.2.6

Technical Documentation

400 Hz Supply (Refer to Fig. 3–11) From the 24 VDC ship’s mains, the converter on the sensor electronics forms a stable–frequency AC voltage of 400 Hz via a quartz–controlled harmonic oscillator. Variable frequency half sine waves are generated; these result from the integration of a pulse–width modulation. Frequency stability is achieved by a quartz–controlled, PLL–regulated harmonic oscillator. An electronic fuse switches off the converter in case of short circuit, overload or other faults. The converter has a suitable antijammer that suppresses disturbances (caused by the switching regulator) to the outside.

Edition: 14. Febr. 1997

3 – 15

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

3.2.7

Temperature–dependent Functions Operating functions that are dependent on the temperature of the gyro compass are illustrated in Fig. 3–12. When the gyro compass is switched on the heating is also switched on. Follow–up is switched on after a temperature of 45 °C has been reached; the heating then begins to reduce its heating power proportionally down to 0% at 50 °C. From approx. 51 °C, the fan is switched on. If the temperature increases up to 65 °C, then a coded over–temperature warning is displayed on the heading indicator; this display changes to an over–temperature alarm when 70 °C are reached. If the temperature continues to increase beyond this point then the temperature fuse shuts off the heating circuit at approx. 77 °C.

Heating 100% Heating 0% Fan ON

Fan OFF

Over–temp. warning

Heating circuit closed

Temperature fuse

Heating circuit shut off

Follow–up ON

Follow–up OFF

40

Over–temp. alarm

45

50

55

60

65

70

75

80 °C

Fig. 3–12: Temperature–dependent Functions in the Gyro Compass STANDARD 20

2771E/110–800.DOC032

3 – 16

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

3.3

Technical Data

3.3.1

Dimensions Type 110 – 800 Type 110 – 806

3.3.2

3.3.3

see Dimensional Drawing 110 D 222.HP005 see Dimensional Drawing 110 D 222.HP018

Weight Sensor Type 110 – 800: Sensor Type 110 – 806: (gyro compass with gyrosphere and supporting liquid) Electrical Data Supply voltage

approx. 16 kg approx. 12 kg

24V DC (18 to 36 V)

Power consumption: – Sensor (run–up): – Sensor (operation): – Heating: – Fan: 3.3.4

Technical Documentation

35 W 30 W max. 75 W (temporarily) 3 W (temporarily)

Accuracies Settle point error: Static error: Dynamic error: (periodic roll and pitch + horizontal acceleration)

≤± 0.1° x secLat. ≤± 0.1° x secLat., RMS ≤± 0.4° x secLat. (secLat. = 1/cos Latitude)

Settling time: Rate of follow–up: Permissible rate of turn: Acceleration of follow–up: Permissible roll and pitch angle: Heading signal output: serial interface “HEADING SERIAL” *):

3h 70°/s unlimited 150°/s2 ± 45° 9600 baud 20 ms

*) Raytheon Anschütz specefic

Edition: 18. Sept. 1997

3 – 17

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

3.3.5

Environmental Conditions and Other Requirements Ambient temperature during operation: –10 °C to +55 °C Storage temperature: *) –25 °C to +70 °C EMC: see Declaration of Conformity Other Requirements: Acc. to ISO 8728 Shipbuilding Marine gyro compasses Acc. to IMO Performance Standards for gyro compasses, Resolution A.424(X1) Type of enclosure: Maintenance interval:

IP 23 3 years

*) without supporting liquid

2771E/110–800.DOC032

3 – 18

Edition: 14. Febr. 1997

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

Index A

E

accuracy, 3 – 17

electrical data, 3 – 17

alignment error, 1 – 13, 1 – 15

encoder, 2 – 18, 2 – 32, 3 – 2p., 3 – 7p., 3 – 13

amplifier, 3 – 14

encoder value, 1 – 15 environmental conditions, 3 – 18

B

equator band, 3 – 6, 3 – 12 error, 1 – 16

bellow, 3 – 3

error logbook, 1 – 16, 1 – 21

bridge circuit, 3 – 14 brush group, 2 – 29, 2 – 31

F

buffer store, 3 – 4

fan, 1 – 19, 2 – 17, 2 – 28, 3 – 2, 3 – 8, 3 – 14, 3 – 16

C

filler, 1 – 6p., 2 – 12 filling device, 2 – 13

calotte, 3 – 12 lower, 3 – 4, 3 – 6, 3 – 12 upper, 3 – 4, 3 – 6, 3 – 12

filling in the liquids, 1 – 6 float valve, 3 – 4

capacitor, 3 – 5

flow control, 1 – 17

casing, 3 – 8

follow–up, 2 – 18, 3 – 5, 3 – 13p., 3 – 16

collector ring board, 2 – 29, 2–31

follow–up system, 1 – 10, 1 – 18p.

collector rings, 2 – 31

function, temperature–dependent, 3 – 16

compass zero, 1 – 11 conductance, 1 – 15

G

conducting paste, 2 – 26 conductive band, 3 – 14

gear, 3 – 2

conductivity, 3 – 11 sensor for, 3 – 4p.

gearing, 2 – 18

conductivity sensor, 2 – 26, 2 – 35

gyro current, 1 – 14

construction, 3 – 1

gyro rotor, 3 – 6, 3 – 12

converter, 3 – 15

gyro sphere, 3 – 9

course pick–off, 3 – 12

gyro system, 3 – 9p.

gyro, 3 – 9

gyrosphere, 2 – 11, 2 – 18, 2 – 24, 3 – 1, 3 – 4, 3 – 6, 3 – 10pp. height of, 1 – 14, 2 – 18, 3 – 12 inserting the, 1 – 5 installation of the, 1 – 3 installing of, 1 – 4 running time, 1 – 15

D damping body, 3 – 3 damping system, 3 – 10 digital display, 1 – 19 dimensions, 3 – 17 dipstick, 2 – 5, 2 – 7 directive force, 3 – 9 dynamic error, 3 – 17

Edition: 02. July 1999

A

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

H

P

harmonic oscillator, 3 – 15

pendulum joint, 1 – 3, 3 – 2p.

heading indication, 1 – 10

pick–off, 3 – 14

heat conducting paste, 2 – 25

pick–off voltage, 1 – 22

heating, 2 – 17, 2 – 19, 3 – 4, 3 – 13, 3 – 16

potentiometer, 1 – 17

heating cartridge, 2 – 17, 2 – 19, 2 – 27, 3 – 14

power consumption, 3 – 17

heating phase, 1 – 10

pump, 2 – 18, 2 – 33, 3 – 4, 3 – 11 pump current, 1 – 14 pump rotor, 3 – 5

I

putting into operation, 1 – 1

injector, 2 – 11 installation, 1 – 2

R r.o.t., output signal, 1 – 22

J

r.o.t. value, 1 – 14

joint, 2 – 28, 3 – 1pp.

rate of turn, 1 – 14 reference course, 1 – 10, 2 – 22p.

L

reference course input, 1 – 11

LED indication, 3 – 2

reference course value, 1 – 12

liquid support, 3 – 5

register, clear, 1 – 21

locking pins, 2 – 14

residual weight, 3 – 11

luminous segments, 1 – 19

reversing contact, 2 – 26, 3 – 4p., 3 – 12, 3 – 14

M

S

maintenance, 2 – 2

safety regulations, 2 – 1

maintenance schedule, 2 – 2

scope of delivery, 1 – 1

measuring cone, 1 – 6p., 2 – 5p., 2 – 12p., 2 – 33, 3 – 5

sensor electronics, 2 – 18p., 2 – 21p., 2 – 28p., 2 – 31, 3 – 1, 3 – 7p., 3 – 15

measuring gauge, 2 – 32

settle point error, 3 – 17 settling curve, 3 – 10

O

settling phase, 1 – 19

operating principle, 3 – 9 operating states, 1 – 10

settling time, 1 – 10, 1 – 15 bridge over, 1 – 20

operating temperature, 1 – 10, 1 – 19

shipboard repair, 2 – 16

operating time, 1 – 15, 1 – 21

slip rings, 3 – 8

outer sphere, 1 – 3p., 1 – 18, 1 – 22, 2 – 3pp., 2 – 11, 2 – 14, 2 – 27, 2 – 33, 3 – 1, 3 – 3p., 3 – 9, 3 – 11, 3 – 14 lower, 1 – 5, 2 – 11p., 2 – 34p., 3 – 4p. putting in the, 1 – 8 upper, 1 – 5, 2 – 11, 2 – 34, 3 – 4

slip–ring assembly, 3 – 2 snap closures, 1 – 8, 2 – 14p. spare parts catalogue, 2 – 36 static error, 3 – 17 step motor, 2 – 18

outer sphere PCB, 2 – 25p.

stepping motor, 1 – 19, 3 – 8, 3 – 13p.

overtemperature fuse, 2 – 25, 3 – 5

2771E/110–800.DOC032

B

Edition: 02. July 1999

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

suction cup, 1 – 4, 2 – 11p., 2 – 24

temperature sensor, 2 – 18p., 2 – 26p., 3 – 4p.

supporting liquid, checking the level of, 2 – 3

test, 1 – 19

supporting liquid, 1 – 6, 2 – 2, 2 – 10, 2 – 13, 2 – 35, 3 – 1, 3 – 5, 3 – 9, 3 – 11 level of, 2 – 6 temperature of, 1 – 10, 1 – 14, 1 – 18

tools, 2 – 11

supporting plate, 2 – 22, 2 – 27, 2 – 28pp., 3 – 1p.

toothed disc, 2 – 29

suspension, hydrostatic, dynamic, 3 – 11

transportation support, 1 – 3

switching regulator, 3 – 15

trouble shooting, aids to, 2 – 18

switching–on procedure, automatic, 1 – 21

turn–on procedure, automatic, 1 – 16

toothed belt, 2 – 18, 2 – 29, 3 – 2, 3 – 14 toothed belt wheel, 3 – 2

symmetrical transformer, 3 – 12, 3 – 14

W T

warning, 1 – 16, 2 – 16p.

technical data, 3 – 17

weight, 3 – 17

temperature, controlling, 3 – 14 temperature controller, 2 – 17

Z

temperature fuse, 3 – 14, 3 – 16

zero position, 1 – 13

temperature PCB, 2 – 19

Edition: 02. July 1999

C

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

Notes:

2771E/110–800.DOC032

D

Edition: 10. Mar. 1998

Gyro Compass STANDARD 20 Service Manual

Technical Documentation

Annex: Drawings: Dimensional Drawing

Type 110 – 800, 110 – 804: Type 110 – 806:

Circuit Diagram Compass, general: Sensor electronics: Outer Sphere PCB: Configuration Sheet:

Edition: 14. Nov. 1997

110 D 222.HP005 110 D 222.HP018

110 D 222.HP009 110 C 222.HP008, Sheet 1 – 4 110 D 222.HP022 110 D 222.HP201

Annex I

2771E/110–800.DOC032

Gyro Compass STANDARD 20 Service Manual

2771E/110–800.DOC032

Annex II

Edition: 14. Febr. 1997