PolyIT Adjustment

lz o h s a V

POLYDOROS IT / IT-S CO

Adjustment POLYDOROS IT / IT-S POLYDOROS IT / IT-S

07463909 05760082 07759728 05760090

© Siemens AG

2003

The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved.

Print No.: COPL-136.842.02.05.02 Replaces: COPL-136.842.02.04.02

English Doc. Gen. Date: 08.05

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Revision / Disclaimer

1Revision / Disclaimer

Document revision level The document corresponds to the version/revision level effective at the time of system delivery. Revisions to hardcopy documentation are not automatically distributed. Please contact your local Siemens office to order current revision levels. Disclaimer The installation and service of equipment described herein is to be performed by qualified personnel who are employed by Siemens or one of its affiliates or who are otherwise authorized by Siemens or one of its affiliates to provide such services. Assemblers and other persons who are not employed by or otherwise directly affiliated with or authorized by Siemens or one of its affiliates are directed to contact one of the local offices of Siemens or one of its affiliates before attempting installation or service procedures.

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Table of Contents 1-

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0Table of Contents

1 _______ General Information______________________________________________ 4 See Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Additional Safety Measures with Power Storage Unit, ESU, Installed . . . . . . . . . . . . Service with the Control Consoles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 4 4 4 4

2 _______ Adjustments ____________________________________________________ 5 Adjustments with the Control Consoles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IONTOMAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tube Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stat. Inverter Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tube Warm-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Filament Learn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . mAs Relay Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5 5 5 5 6 6 7

Low voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 _______ Changes to Previous Version_____________________________________ 10

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General Information

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See Configuration

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General Information

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1General Information

see (COPL-136.843.02 / General)

General Safety Information

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see (COPL-136.843.02 / General Safety Information)

Additional Safety Measures with Power Storage Unit, ESU, Installed

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see (COPL-136.843.02 / Additional Safety Measures with the Power Storage Unit, ESU, Installed)

Service with the Control Consoles

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see (COPL-136.843.02 / Service with the control consoles)

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Adjustments

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Adjustments with the Control Consoles 2Adjustments

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The adjustments in these instructions are described so that they can be used for both control consoles.

• Switching the generator from normal mode to service is performed according to "Service Mode".

• The service menus, etc. intended for the adjustment as well as the structure of the menus are described in the Configuration Instructions (COPL-136.843.03 / Standard Console Configuration Lists) or (COPL-136.843.03 / Touch Panel Configuration List).

IONTOMAT

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Adjustment / Setting / Testing the IONTOMAT is described in detail in the Startup Instructions.

Tube Adjustment

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Is a super ordinate menu so that, depending on the selection, there is a branching into "Tube warm up" or "Tube Learn filament" (only with the standard console).

Stat. Inverter Adjust

0

In this mode, the parallel frequency of the oscillating circuit of the inverter is adjusted automatically.

• This adjustment absolutely must be performed after replacing the following parts in the oscillation circuit: -

Inverter Parallel coil Cabling High voltage transformer / single tank D 500 NOTE

The exposure button starts the automatically running function (exposure series). The exposure button must be held for the entire period of the exposure series. If the button is released too soon, Error 0021 is displayed. The user is requested to repeat the function.

Exposure data are automatically displayed on the control console.

• When the exposure button is pressed, the generator starts the automatic adjustment. • After completing it, there is a return to the super ordinate menu.

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Adjustments

Tube Warm-up NOTE

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For the time being, absolutely perform the “Stat. Inverter Adjust” adjustment.

With this function, the tube unit is conditioned, or the tube unit can be brought up to the operating temperature for the "Tube Learn filament". Appropriate exposure data are automatically displayed on the control console.

• When the "Main Contact" exposure button is pressed, the generator starts the first exposure. - The pause time and the progress of the "series", step X of 11, is displayed on the control console (depending on the control console, the pause time is signaled by a beeping sound).

NOTE

During the exposure series (11 exposures), the trigger switch can remain pressed or each exposure is triggered individually.

• After completing it, there is a return to the super ordinate menu. NOTE

With the Standard Console: The screen is exited with the kV- button and there is a return to the super ordinate menu.

Filament Learn NOTE

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For the time being, absolutely perform the “Stat. Inverter Adjust” adjustment.

In this mode, the transition between standby and exposure heating is adjusted automatically. NOTE

For the time being, the tube unit must be brought up to the operating temperature, e.g. with "Tube Warm-up" or with single shots.

First the adjustment is made with a long preparation time (without pushing). -

Large focus, 10% tube load Large focus, 80% tube load Small focus, 10% tube load Small focus, 80% tube load (if 1 or 2 times the reference value for the heating current occurs during the 10% exposure, the 80% exposures are shot at only 60%).

Then the adjustment is made with a short preparation time (with pushing).

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Adjustments -

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Large focus, 10% tube load, push factor 1.05 Large focus, 80% tube load, push factor 1.15 Small focus, 10% tube load, push factor 1.05 Small focus, 80% tube load, push factor 1.15 NOTE

The exposure button starts the automatically running function (exposure series). The exposure button must be held for the entire period of the exposure series; if the button is released too soon, Error 0021 is displayed. The user is requested to repeat the function.

• When the "Main Contact" exposure button is pressed, the generator starts the exposure series. NOTE

If the exposure series is interrupted (abort by the user or by an error that occurs, door contact open,...), a pause absolutely must be observed prior to restarting the exposure series. Pay attention to the X-ray tube unit temperature, because the "pause time display" is not current.

• After completing it, there is a return to the super ordinate menu.

mAs Relay Adjust

0

In this mode, the mAs relay can be adjusted. To do this, connect an mAs test meter to the D500 board.

• Connect the test meter on the D500 board at X220, Pins 1 and 2. • Set the S2 mA measuring switch (D500) to position "2". LED V67 goes on. • Exposure data are automatically displayed on the control console. - 70 kV - 80 mAs

NOTE

The generator always shoots with the same value as for the adjustment so the every time the adjustment is performed, the "same" difference between the display and the measured value results. For a check, an exposure should be triggered outside of service. However, the check is not required!

• When the "Main Contact" exposure button is pressed, the generator starts the exposure. - Once the exposure is completed, the mAs display blinks in the display.

• Compare the measurement value and the value indicated on the display. - If the values are different, the measured value must be entered directly with the mAs keys or on the Touch Panel.

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Adjustments • With the Standard Console: The changed value is saved with the "M" button and there is a return to the super ordinate menu.

• With the Standard Console: There is a return to the super ordinate menu with the "kV" key without saving the value.

• Set the S2 mA measuring switch (D500) to position "1". LED V67 does not go on. • Remove the test meter.

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Adjustments

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Low voltages NOTE

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The generator low voltages (+15V / -15V ...) result from the adjustment of the 5V. For setting values and test points, see Wiring Diagram (COPL-136.844.03

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Changes to Previous Version

3Changes to Previous Version

No changes; initial publication.

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