83885 Mark IV Operator Manual

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Description

GFS83885A (SupersedesGEK-83885)

GE DriveSystems Instructions

Mark IV SPEEDTRONIC’” Gas Turbine Control Operator’s Manual

Mark IV SPEEDTRONICTM Gas Turbine Operator’s

Control Manual

GEK43885A (Supersedes

GEK-83885)

Issue Date: October 1987 Revised:

August 1989

These instructions do not purport to cover all details or variations in equipment, nor to provide for every possible contingency to be met dwing installation, operation, and maintenance. Should further information be desired or should particular problems arise that are not covered sufficiently for the purchaser’s purpose, the matter should be rej2rred to GE Drive Systems, Salem, Virginia, USA.

0 1987, 1989 by General Electric Company, U.S.A. All rights reserved.

Printed in the United States of America.

Safety Symbol Legend

Commands attention to an operating procedure, practice, condition or statement, which,

ifnot

strictly observed, could result in personal

injury or death.

Commands attention to an operating procedure, practice, condition or statement, which, not strictly observed, could result in damage

if

to or destruction of equipment.

NOTE

Commands attention to an essential operating or maintenance procedure, condition, or statement that must be highlighted.

1 WARNING

1

THIS EQUIPMENT CONTAINS A POTENTIAL HAZARD OF ELECTRICAL SHOCK OR BURN. ONLY PERSONNEL WHO ARE ADEQUATELY TRAINED AND THOROUGHLY FAMILIAR WITH THE EQUIPMENT AND THE INSTRUCTIONS SHOULD INSTALL, OPERATE, OR MAINTAIN THIS EQUIPMENT. ISOLATION OF TEST EQUIPMENT FROM THE EQUIPMENT UNDER TEST PRESENTS POTENTIAL ELECTRICAL HAZARDS. IF THE TEST EQUIPMENT CANNOT BE GROUNDED TO THE EQUIPMENT UNDER TEST, THE TEST EQUIPMENTS CASE MUST BE SHIELDED TO PREVENT CONTACT BY PERSONNEL. TO MINIMIZE HAZARD OF ELECTRICAL SHOCK OR BURN, APPROVED GROUNDING PRACTICES AND PROCEDURES MUST BE STRICTLY FOLLOWED.

NOTICE This document contains proprietary information of General Electric Company, U.S.A. and is furnished to its customer solely to assist that customer in the installation, testing, and/or maintenance of the equipment described. This document shall not be reproduced in whole or in part nor shall its contents be disclosed to any third party without the written approval of GE Drive Systems, 1501 Roanoke Boulevard, Salem, Virginia 24153, U.S.A.

SPEED-IRONIC”

is a trademark

of General Electric Company, U.S.A.

Mark IV SPEEDTRONIC”

GEK-83885

Gas Turbine Control Operator’s Manual

TABLE OF CONTENTS

Chapter/Paragraph 1

OVERVIEW INTRODUCTION .. ... .....__.......................I l-l OPERATOR INTERFACE . . .. .. .... .. ... .. . . . .. .. l- 1

l-l. 1-2. 2

OPERATOR CONTROL SWITCHES

2-l. 2-2. 2-3. 2-4. 2-5. 2-6. 2-7. 2-8. 2-9. 2-10. 3

Page

INTRODUCTION .. ... .. .. . .. . .. ... ... ... . ... .. .. . .. .2-1 OPERATION/CONTROL SWITCHES . ...2-1 EMERGENCY STOP PUSHBUTTON.....2-2 ALARM SWITCHES ..... .. .. .. .. .. .... .. ... . .. . . . ...2-2 DISPLAY KEYPAD SWITCHES . .. ... . .. . . .. ..2-2 DISPLAY CURSOR SWITCHES . .. ... . . . . .. ..2-2 DISPLAY MODE SWITCHES .. .. .. ... . .. . . ..I.2-2 DISPLAY FUNCTIONS SWITCHES . . . .. ..24 PRINTER SWITCHES ... . . ... . ... ... ... .. .. .. . . . . ..2-5 AUXILIARY DISPLAY SWITCHES . ... . . . ..2-5

CRT DISPLAYS

3-1. 3-2. 3-2.1. 3-2.2. 3-3.3. 3-2.4. 3-2.5. 3-2.6. 3-2.7. 3-2.8. 3-2.9. 3-2.10. 3-2.11. 3-2.12. 3-2.13. 3-2.14. 3-2.15. 3-2.16. 3-2.17. 3-2.18. 3-2.19. 3-3. 3-3.1. 3-3.2.

INTRODUCTION ................................... .3-l NORMAL DISPLAYS ............................. ..3- 1 Operating Mode ....................................... 3-l .3-2 Status.. ...................................................... SELECT-l and -2 .................................... .3-2 CONTRL (Control). ................................. .3-2 3-2 ............................................................. 3-2 SPEED ....................................................... 3-2 TNHSET ................................................... .3-2 FSR.. ......................................................... 3-2 FUEL ......................................................... Date and Time.. ....................................... .3-2 FLAME/SPREAD.. ..................................... 3-2 3-2 IGV ............................................................ 3-2 MAXVIB .................................................... 3-2 SPEED LEVEL .......................................... Message 1, 2, and 3.. ............................... .3-2 Alarm Messages ....................................... .3-2 SELECT (Additional Parameters). ........... .3-3 .3-3 ALARM ACK.. .......................................... 3-3 IDENTITY ................................................ ALARM DISPLAYS ................................... 3-5 .3-5 Alarm Lockout ......................................... Alarm Logging.. ....................................... .3-5

Chapter/Paragraph 3-3.3. 3-4. 3-4.1. 3-5. 3-5.1. 3-5.2. 3-5.3. 3-5.4. 3-5.5. 3-5.5.1. 3-5.5.2. 3-5.6. 3-5.6.1. 3-5.6.2. 3-5.7. 3-5.8. 3-5.9. 3-5.9.1. 3-5.9.2. 3-6. 4

_

Page

Diagnostic Alarms ..................................... 3-5 MANUAL CONTROL DISPLAYS.. ......... .3-6 COOLDOWN OFF/ON Manual Selec3-6 tion ........................................................ DATA (DISPLAY MENU) DISPLAYS.. .. ..3- 8 Data List 01: Exhaust Thermocouples.. ...3- 8 Data List 02: Wheelspace Thermocou.3-8 ples ....................................................... Data List 03: Lube Oil (Bearing Drain Thermocouples ...................................... 3-8 Data List 04: Timers and Event 3-8 Counters ................................................ Data List 07: Wet Low Nox Data.. ........ .3-11 WET LOW NOX DISPLAY ................... .3- 1 l WET LOW NOX PRINTER LOG.. ....... .3-11 Data List 12: Demand Display .............. .3-12 MANUAL COPY OF DEMAND DIS.3-12 PLAY.. ................................................. AUTOMATIC DEMAND DISPLAY LOG PRINTOUT ................................... 3-12 Data List 13: Rung Display ................... .3-14 Data List 1C: Administrative Displays 3-16 Menu ................................................... Administrative Displays List No. 00: Administrative Display ....................... .3- 16 TIME and DATE SETTING.. ................ .3-18 SCALE SET SELECTION ..................... .3- 18 RESET DISPLAY .................................... 3-18

AUXILIARY DISPLAY

4-1. 4-2. 4-2.1. 4-2.2. 4-2.3. 4-2.4. 4-3. 4-3.1. 4-3.2. 4-3.3.

INTRODUCTION .................................... 4-1 OPERATOR INTERFACE DEVICES.. .... .4- 1 Function/Value Digital Display. ............... .4- 1 SECTIONS RUNNING Lights: C, R, S, .4-2 and T.. .................................................. SECTION SELECTOR Switches: C, R, 4-2 S, and T.. ............................................... FUNCTION SELECTOR Switches.. ........ .4-2 AUXILIARY DISPLAY MODES.. ............ .4-2 Mode Select State .................................... -4-2 4-2 List Mode .................................................. .4-3 Alarm Mode .............................................

GEK-83885

Mark IV SPEEDTRONIC” Gas Turbine Control Operator’s Manual

LIST OF ILLUSTRATIONS

Number l-l 2-1 2-2 2-3 2-4 2-5 3-1 3-2 3-3 3-4 3-5

Page

Typical Mark IV SPEEDTRONIC” Operator Interface Module with CRT . . ... . . ... . . 1-O Operation/Control and Emergency Stop Switches of Operator Interface Module -2-l Display, Alarm, and Printer Switches of Operator Interface Module . .. .. . . .. ... . .. .. . ..2-3 CRT Display and Display Function Switches of Operator Interface Module .2-4 Historical Log: Parts 1, 2, and 3 . . . ... .. . .. . ... .2-6 Historical Log: Parts 4, 5, and Alarms (FL) . . ...*....................................... 2-7 Normal Display Fields (Relative Positions) . . ... . . .. ... .... .. .. .. . .. ... . . .. . .. .. . .... . .. . . ..3-l Startup Normal Display .. . ... .. . .. . .. .. . .. ... .. . . .. .3-3 Running Normal Display . .. ... . .. . . ... . .. ... .. .. .. .3-4 Shutdown Normal Display ... .. . .. . ... . . ... . .. .. . ..3-4 Alarm Display .. . .. ... ... .. .. .. .. . ... .. . . .. .. .. . ... . .. .. . ..3-5

Number 3-6 3-7 3-8 q-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-20 4-1

Page

Manual Control Display: Auxiliary 3-7 Control .................................................... 3-8 ............................................. Display Menu .3-9 Exhaust Thermocouples.. .......................... Wheelspace Thermocouples.. .................... -3-9 Lube Oil Thermocouples ....................... ..3 - 10 Timers and Event Counters ................... ..3 - 10 Wet Low Nox Display ............................... 3-11 Demand Display (Normal) ..................... ..3 - 13 Demand Display (Set Time Mode) ........ ..3 - 13 Rung Display (Typical). ........................... .3-l 5 Rung Display (Timer) ............................... 3-15 Administrative Displays (Menu) .............. .3- 16 Administrative Display (Normal). ............ .3- 17 Reset Display Mode .................................. 3-19 Auxiliary Display of Operator Interface 4-1 Module ....................................................

Mark IV SPEEDTRONIC”

Gas Turbine Control Operator’s Manual

-

Notes -

.. .

Ill

GEK-83885

Mark IV SPEEDTRONIC”

BAS

XLECT LIST 00

LIST

TUREGNE

CONTROL

W

LllSPLAY

TITLE CONTROLREFERENCE EXHAUST THERMOCOUPLES WEELSPACE THERMGCWPLES

10 II 1 I2

::

TIMERS

I: IS

AND EVENT

COUNTERS

t2

TITLE TRIP DISPLAY -2s ANAL00 OUT DEHANO LOB RUN0 DISPLAY

CATEGGNY COHPOSITE COHPOS1TE

0 COMPOSITE LOGlCS REALS

I

> f -DISPLAY

DISPLAY

FUNCYIONS

SELECTON

-

-

SECTIOW

-

SECT,ONS RUNN:NO

m

-

I

ANALOG CONTROL LOGIC FDRCING INTER-PROCESSON LOGIC DATA INTER-PNOCESSGR REAL DATA CONTACT INPUTS RELAY OUTPUTS ADMINISTRATIVE MENU CONTROL CONSTANTS MEMORY DIAGNOSTXC DISPLAYS

Ii IA ID IC ID IE IF

::

DlsPLAY

MENU

I?

:8’

:: ND BE NF

SYSTEM

LXST

::

Gas Turbine Control Operator’s Manual

I

I

I

I

R0WAD-

-PANTEN-

-DISPLAY CUNSDR-EXECUTE-

<

El J,

*OPTIONAL

Figure l-l.

1-O

Typical Mark IV SPEEDTRONIC

N Operator Interface Module with CRT

Mark IV SPEEDTRONIC”

GEK-83885

Gas Turbine Control Operator’s Manual

CHAPTER

1

OVERVIEW l-l.

INTRODUCTION

This manual provides information needed by an operator to use a Mark IV SPEEDTRONIC” control panel to interface with gas turbine equipment. It discusses typical control switches, primary displays, and log printouts associated with gas turbine operation. Chapter 2 describes the operator control panel switches and their functions. Chapter 3 covers the CRT displays available to the operator. Chapter 4 discusses the auxiliary display portion of the operator interface module, which is a backup display for the CRT. This manual is intended to supplement the operator’s manual written for the overall gas turbine system. It does not cover maintenance displays nor specific details of each installation. Maintenance personnel should refer to the Mark IV SPEEDTRONIC” Gas Turbine Control Maintenance Manual (GEK-83886) and the system elementary diagrams.

l-2.

OPERATOR

INTERFACE

The Operator Interface Module (see Figure l-l) is the control panel device through which an operator communicates with the gas turbine system. It is located on the Mark IV SPEEDTRONIC control panel’s front door. The Operator Interface Module contains input devices (membrane switches and an Emergency Stop pushbutton) used either to send commands to the gas turbine control or to request CRT displays. It also includes a CRT, on which the operator can view all parameters relevant to the gas turbine operation. These parameters are displayable in English or metric engineering units. A panel-mounted printer, located below the Operator Interface Module, enables the operator to manually select and copy any display, and to automatically log selected parameters.

l-l

GEK-83885

Mark IV SPEEDTRONIC”

- Notes -

1-2

Gas Turbine Control Operator’s Manual

Mark IV SPEEDTRONIC”

GEK-83885

Gas Turbine Control Operator’s Manual

CHAPTER

2

OPERATOR CONTROL SWITCHES 2-1.

INTRODUCTION

The Operator Interface Module (refer to Figure l-l) is used by an operator to control gas turbine equipment or to obtain data about the equipment. It contains nine functional groups of switches, used as follows: l

For controlling the equipment

0

- Operation/Control group - Emergency Stop pushbutton - Alarm group

0 0

a To manipulate data “-

Most operator controls function only when the < C > Communicator computer is operating. However, the Emergency Stop pushbutton (see Figure 2-l) is active in all modes of operation. Additionally, the following switches, identified by a blue triangle printed on them, remain functional when the < C > Communicator is not operating:

2-2.

Display Keypad group Display Cursor group Display Mode group Display Functions group Printer group

0 As an alternative to the CRT - Auxiliary Display group The following paragraphs describe these operator controls and their functions.

OPERATOR INTERFACE MODULE -

stop in the Operation/Control group Alarm Silence in the Alarm group Alarm Reset in the Alarm group

OPERATION/CONTROL

SWITCHES

The operator uses Operation/Control switches (see Figure 2-l) to send control commands to the gas turbine equipment. These switches are designated by their yellow color. Up to 28 Operation/Control switches reside in a group on the right side of the Operator Interface Module. This group is divided into the functional subgroups of Operation, Load, Master Control, Fuel, IOV Temperature Control, and optional switches. Another Operation/Control switch, Execute, is located on the lower left side of the module.

PANEL VIEW OPERATXOW

OPERATION/CONTROL - DETAILVIEW

SWITCHES -

EXECUTE SWITCH OF ~;~~~TlON/CONTROL

Figure 2-l.

Operation/Control

and Emergency Stop Switches of Operator Interface Module 2-1

Mark IV SPEEDTRONIC”

GEK-83885

The operator initiates a control command to the gas turbine equipment by pressing the appropriate Operation/Control switch. The control responds with an audible “beep” to acknowledge receipt of the input, and flashes the light above the switch. It then waits for the operator to confirm the command. To do this, the operator must press the yellow Execute switch within 3 seconds after pressing the control switch. ** NOTE ** This procedure for confirming a command input prevents false commands from being executed. Only switches in the Operation/Control group require the op erator to also press the Execute switch. All switches in the other functional groups, plus the Emergency Stop pushbutton, do not require this protective feature.

When the Execute command is received, the light above the control switch changes from flashing to continuously on if the gas turbine can accept the control input. For example, the gas turbine cannot accept a Crank command if it has detected a fire. Also for example, when the Normal Display (see section 3-2) displays the message NOT READY TO START, a Stirt command input is accepted but cannot be acted on. When this occurs, the system displays an alarm message that specifies the reason the start per-missives are not satisfied. Not all Operation/Cont.rol switches require pressing the Execute switch. Ones that involve continuous monitoring (such as the optional Raise and Lower switches that adjust the speed/load setpoint on compressor drive applications) do not require the execute action. Additionally, the Stop switch, which normally requires pressing the Execute switch, functions without it if the < C > Communicator stops operating. The following shows a typical operation selection procedure: Operation

Press Switch

Comments

Off

1. off

Off light on

Crank

1. Crank

Crank light flashes

2. Execute

Crank light goes on steady, Off light goes off.

2-3.

EMERGENCY STOP PUSHBUTTON

The Emergency Stop switch is a large red pushbutton

located on the lower right side of the Ooerator Interface Module (see Figu;e 2-l). The op&ator pushes Emergency Stop to stop the gas turbine under emergency conditions, instead of using the normal shut-

2-2

Gas Turbine Control Operator’s Manual

down sequence. This pushbutton mechanically latches in the STOP position when it is pressed. As noted previously, Emergency Stop is active in all modes of operation. Function

Operator A&on

Emergency stop

Press Emergency Stop

Reset emergency stop

Turn Emergency Stop clockwise

2-4.

AIARM SWITCHES

The two Alarm switches are located below the CRT

(see Figure 2-2). The Operator uses the Alarm Silence switch to silence the alarm horn. The Reset switch resets all acknowledged and cleared alarms. As noted previously, the Alarm group switches still functions if the < C > communicator is not operating. Section 3-3 discusses the alarm system.

2-5.

DISPLAY KEYPAD SWITCHES

An operator uses the Display Keypad switches to select

Data List displays or parameters that appear on the CRT. These switches are located directly below the CRT (see Figure 2-2). They include a full set of alpha-numeric characters and the following auxiliary switches: Space - Creates a blank character Delete - Deletes a single character Clear - Deletes an entire character string S&l - Accesses the alternate character printed at the top of the Display Keypad switch when pressed with the switch Enter - Loads the typed characters into the computer to initiate a command

The description of the displays (Chapter 3) provides examples of how to use the Display Keypad switches. 2-6.

DISPLAY CURSOR SWITCHES

A cursor appears on some CRT Data List displays. It is used during maintenance to select a signal value, a logic level, or a constant to be changed, entered, or displayed. The operator moves the cursor by pushing the Display Cursor switches Up, Down, Lefi, and Right. As shown in Figure 2-2, these switches are located below the CRT. 2-7.

DISPLAY MODE SWITCHES

The operator uses the five Display Mode switches (Norm&, Manual, Alarm, Manual Control, and Reset) to select display modes. These switches are located on left bottom side of the Operator Interface Module (see Figure 2-2). Chapter 3 describes the CRT displays and use of these switches.

Mark IV SPEEDTRONIC”

Gas Turbine Control Operator’s Manual

OPERATOR INTERFACE MODULE -

-DISPLAY cm”U cl DAYA cl

PANEL VIEW

-ALLARH-

BODENrn)I

vILEYCE

RESET

I nu

CTL

-PRINTER-

cl

PESET 0 -DISPLAY

DISPLAY, ALARM, PRINTER SWITCHES

-

CURSOR -

DETAIL VIEW

Figure 2-2. Display, Alarm., and Printer Switches of Operator Interface Module

2-3

GEK-83885

2-8.

Mark IV SPEEDTRONIC”

DISPLAY

FUNCTIONS

SWITCHES

The six Display Functions switches (see Figure 2-3), labeled Fo thru F,, are located on the right side of the CRT. These are “soft keys” because the switch function is assigned by the software associated with a particular CRT display (see Chapter 3). It displays the function on the right side of the CRT screen, adjacent to the associated Display Functions switch. For example, the Alarm Display mode assigns hmctions to the Display Functions switches as follows:

CRT AND T LIST

DISPLAY

FUNCTIONS

90 TITLE

DIS

CONTROLREFERENCE EXHAUST THERMOCOUPLES MELSPACE THERHGCOUPLES IIllERSANDEVEllT

COUNTERS

SWITCHES .AY

Switch Functional Description Press to display the next page FO of the Alarm tit. If the dia ostic alarms exist, DIAGNALARM Fl press to cr _ splay list of Diagnostic Alarm messages. Unassigned. FZ (blank) Press to lock the alarm in its ALARM LOCOUT F3 current position. Press to unlock the alarm. ALARM UNLOC F4 Press to acknowledge all ALARM ACK F5 flashing alarms. Display On CRT NEXT PAGE

DETAIL VIEW Dl9PLAY FUNCTIONS

MENU

qjGi&f I2 I: I: 17 I8 19 IA

:ATEGORY B COMPOSITE :OMPOSITE LOGIC5 :OllPOSITE REALS

-

Gas Turbine Control Operator’s Manual

IS ID IE IF

ANALOG CONTROL LOGIC FORCING

I

INTER-PROCESSOR LOGIC DATA INTER-PROCESSOR REAL DAlA CONTACT 1NPUTS RELAYOUTPUTS ADflINISTRATIVE MENU CONTROL CONSTANTS liEUORY DIAGNOSTIC DISPLAYS

OPERATOR

INTERFACE

MODULE -

PANEL VIEW

Figure 2-3. CRT Displuy and Disp,?uy Function Switches of Operator Interface Module 2-4

Mark IV SPEEDTRONIC”

2-9.

Gas Turbine Control Operator’s Manual

PRINTER SWITCHES

CI’IM - Turbine Compressor Inlet Flange Temperature (Maximum input select) (“F or “C) 0 CPD - Turbine Compressor Discharge Pressure (PSIG or BARS) 0 TTXDl,1 thru IS-- Exhaust Thermocouples Temperatures (“F or “C)

l

The two Printer switches, located below the CRT (see Figure 2-2), are used as follows: Function

GEK-83885

Press Switch

Printout of current CRT display

COPY

Printout of historical log

History

The historical log (see Figures 2-4 and 2-5) contains the values of key gas turbine parameters, such as speed and exhaust temperatures (Parts 1 thru 5) and all alarm messages (Part FL). These parameters include: HISAGE - History Age (Seconds) TNH - HP Turbine Speed (% Speed) TNR - Turbine Speed Reference (% Speed) FSR - Fuel Stroke Reference (% FSR) CSGV - Inlet Guide Vane Calibrated Stroke Position (Degrees)

The turbine control samples each parameter and alarm message during the ten points in time preceding the current print request. This sampling occurs continuously while the turbine is running. A turbine trip or shutdown stops the sampling, but retains the data until the turbine is restarted. 2-10.

AUXILIARY DISPLAY SWITCHES

The Auxiliary Display is provided as a CRT backup.

Chapter 4 describes the Auxiliary Display and its Function Selector and Section Selector switches.

2-5

GEK-83885

HISTORICAL

Mark IV SPEEDTRONIC”

Gas Turbine Control Operator’s Manual

LOG PART 1 HISAGE

TNH

TNR

FSR

CSGV

CTIM

14 MAR 84

13:54:17

0

100.0

103.8

73.0

85.0

75

14 MAR 84

13:54:15

2

100.0

103.8

72.5

85.0

75

14 MAR 84

13:54:07

10

100.0

103.8

72.3

85.0

75

14 MAR 84

13:53:35

42

100.0

103.8

72.3

85.0

75

14 MAR 84

13:53:03

74

100.0

103.8

73.0

85.0

75

14 MAR 84

13:50:55

202

100.0

103.8

73.4

85.0

75

14 MAR 84

13:42:23

714

100.0

103.8

73.2

85.0

14 MAR 84

13:08:15

2762

100.0

103.8

73.0

85.0

75 .. _ L)

14 MAR 84

10:51:43

10954

100.0

103.8

73.1

85.0

75

14 MAR 84

06:18:39

27338

100.0

103.8

73.0

85.0

75

CPD

TTXD,

T-l’XDl,2

TTXDl_3

HISTORICAL

LOG PART 2 1

TTXD l-5

821

828

838

819

834

826

790

838

819

834

826

790

838

819

834

826

841

822

837

829

793

841

822

837

829

129.9

795

843

824

839

831

13:08:15

129.9

795

843

824

839

831

10:51:43

130.1

792

840

821

836

828

06:18:39

130.0

792

840

821

836

828

13:54:17

130.1

14 MAR 84

13:54:15

14 MAR 84

792

840

129.8

790

13:54:07

129.8

14 MAR 84

13:53:35

129.8

14 MAR 84

13:53:03

130.0

793

14 MAR 84

13:50:55

130.0

14 MAR 84

13:42:23

14 MAR 84 14 MAR 84 14 MAR 84 HISTORICAL

TTXDl_4 836

14 MAR 84

LOG PART 3 -rTXDl_6

TI’XDl,

7

l-rXDl_8

-ITXD l-9

?TXDl_lO

l-TXD1_11

14 MAR 84

13:54:17

828

845

849

828

820

818

14 MAR 84

13:54:15

826

843

847

826

818

816

14 MAR 84

13:54:07

826

843

847

826

818

816 816

14 MAR 84

13:53:35

826

843

847

826

818

14 MAR 84

13:53:03

829

846

850

829

821

819

14 MAR 84

13:50:55

829

846

850

829

821

819

14 MAR 84

13:42:23

831

848

852

831

823

821

14 MAR 84

13:08:15

831

848

852

831

823

821

14 MAR 84

10:51:43

828

845

849

828

820

818

14 MAR 84

06:18:39

828

845

849

828

820

818

Figure 2-4. Historical hg:

2-6

Parts 1, 2, and 3

Mark IV SPEEDTRONIC”

HISTORICAL

LOG

GEK-83885

Gas Turbine Control Operator’s Manual

PART 4 -I--FXDl_l2

mDl_13

l--IXD1_14

TTXDl_15

T-T’XDl-

16

Tl-XDl-17

14 MAR 84

13:54:17

817

808

808

817

818

820

14 MAR 84

13:54:15

815

806

806

815

816

818

14 MAR 84

13:54:07

815

806

806

815

816

818

14 MAR 84

13:53:35

815

806

806

815

816

818

14 MAR 84

13:53:03

818

809

809

818

819

821

14 MAR 84

13:50:55

818

809

809

818

819

821

14 MAR 84

13:42:23

820

811

811

820

821

823

14 MAR 84

13:08:15

820

811

811

820

821

823

14 MAR 84

10:51:43

817

808

808

817

818

820

14 MAR 84

06: 18:39

817

808

808

817

818

820

HISTORICAL

LOG PART 5 TrxD1_18

14 MAR 84

13:54:17

828

.

.

. .

. . . .

. .

.

.

. . .

.

. . . .

.

.

. .

. . . .

. .

.

.

. . .

.

. . . . . . . .

.

. . . .

. .

. . . .

14 MAR 84

13:54:15

826

. .

. .

. . . .

. .

.

.

. . . .

14 MAR 84

13:54:07

826

.

. . .

. . . .

. .

.

.

. . .

14 MAR 84

13:53:35

826

.

. . .

. . . .

. . .

.

. .

14 MAR 84

13:53:03

829

.

. . .

. . . .

. . .

.

. . .

.

. . . .

.

. . . .

. . . .

14 MAR 84

13:50:55

829

. .

. .

. . . .

. . .

14 MAR 84

13:42:23

831

. .

. .

. . . .

. .

.

.

. . . .

. . . .

14 MAR 84

13:08:15

831

.

. . .

. .

.

.

. . .

.

. . . .

14 MAR 84

10:51:43

828

. .

. . .

.

. . .

.

. . . .

.

. . . .

. . . .

14 MAR 84 HISTORICAL

06:18:39

828

. . .

. .

.

. . . .

. .

. . . .

. .

. . .

LOG PART FL

13 MAR 84

16:42:50.0000

CO125

BATTERY

13 MAR 84

15:20:58.5900

CO146

TURBINE

COMPARTMENT

13 MAR 84

15:17:16.2300

COO63

TURBINE

AIR INLET TROUBLE

NORMAL

13 MAR 84

15:02:33.9100

CO160

BATTERY

CHARGER A.C. UNDERVOLTAGE

NORMAL

13 MAR 84

14:50:43.0900

coo09

LUBE OIL PRESSURE SWITCH TROUBLE

NORMAL

13 MAR 84

14:33:27.7400

CO232

DIAGNOSTIC

NORMAL

13 MAR 84

14:29:36.7500

CO145

CONTROL

13 MAR 84

14:28:30.8700

CO160

BATTERY

CHARGER A.C. UNDERVOLTAGE

13 MAR 84

14:27:11.6200

COO63

TURBINE

AIR INLET TROUBLE

13 MAR 84

14:26:49.6200

CO232

DIAGNOSTIC

13 MAR 84

14:25:46.0000

CO160

BATTERY

13 MAR 84

14:24:20.5000

COO09

LUBE OIL PRESSURE SWITCH TROUBLE

Figure 2-5. Hdorical

NORMAL

125V D.C. GROUND TEMPERATURE

ALARM - SEE DISPLAY

PANEL TEMPERATURE

HIGH

NORMAL

HIGH

ALARM - SEE DISPLAY

125V D.C. GROUND

Log: Parts 4, 5, and Alarms (FL)

2-7

GEK-83885

Mark IV SPEEDTRONICm Gas Turbine Control Operator’s Manual

-

2-8

Notes -

Mark IV SPEEDTRONIC”

Gas Turbine Control Operator’s

GEK-83885

Manual

CHAPTER 3 CRT DISPLAYS 3-1.

INTRODUCTION

The Display Mode switches, shown in Figure

2-2 (Normal, Manual, Alarm, Manual Control, and Reset), allow the operator to select displays on the CRT. This chapter describes the use of the Display Mode switches and shows examples of the associated displays.

3-2.

NORMAL DISPLAYS

The Normal Display is the primary display that the operator “normally” watches. This display shows all of the key gas turbine parameters that an operator needs to observe. The operator selects this display mode by pressing the Normal switch. There are three Normal Displays, which indicate the gas turbine operating mode: STARTUP STATUS, RUNNING STATUS, and SHUTDOWN STATUS.

the STARTUP STATUS dismay (Figure 3-2) shows which flame scanners have Adetected flame. in the combustion chamber. However, the RUNNING STATUS display (Figure 3-3) does not show this since the turbine must have flame if it is running. Instead, with the RUNNING STATUS display, an alarm message warns the operator if flame is lost on any channel while the turbine is running. The NORMAL DISPLAYS include the typical display fields, described in the following paragraphs and shown in Figure 3- 1. The Operating Mode Operating Mode. 3-2.1. field indicates the state of the gas turbine. The message automatically changes when the mode changes. The messages for this field are:

During any of these modes of operation, the control system automatically selects the display that applies to that mode. All of the displays are similar in format (see Figure 3-l), but differ slightly in content. For example,

Operating

Mode

.

STARTUP STATUS

l

RUN STATUS

.

SHUTDOWN

STATUS

Date and Time

Status SELECT

I

1

I

FLAME I SPREAD

2

CONTRL

IGV 1 MAXVIB

TX

SPEED

~~~ 7

SPEED LEVEL

TNHSET

Message 1

FSR

Message 2

FUEL

Message 3

Alarm Messages

SELECT (Additional Parameters) ACK

ACKNOWLEDGED

ALARMS

IDENTITY

Figure 3-l. Normul Dtif2.a~ F&h!s (Relutive Positions)

3-1

GEK-83885

3-2.2.

status.

of the Operating

Mark IV SPEEDTRONIC”

The Status field displays the status Mode. Typical messages are:

READY TO START STARTING FIRING WARMING UP FULL SPEED NO LOAD, etc. 3-2.3. SELECT-l and -2. The SELECT-l field displays the master Operation selected (via the Operation/ Control switches; see Figure 2-l). Possible messages are: .

OFF

.

CRANK

.

FIRE

.

AUTO

.

REMOTE

The SELECT-2 field displays the master Control selected (via the Operation/Control switches; see Figure 2-l). Typical messages are: .

START

l

STOP

.

BASE

l

PEAK, etc.

CONTRL (Control). The CONTRL field identifies the control loop presently governing the fuel to the gas turbine. Typical messages are:

3-2.4.

.

STARTUP

.

ACCEL

.

TEMP

0

SPEED, etc.

3-2.5. TX. The TX field indicates the exhaust thermocouple average temperature. It is displayed in DEG F or DEG C (degrees Fahrenheit or Celsius). 3-2.6. SPEED. The SPEED field displays the gas turbine high pressure shaft speed in units of percentage of rated speed. 3-2.7. TNHSET. The TNHSET field provides the reference for the gas turbine speed or load. It is displayed in units of percentage of speed.

3-2.8. FSR. The Fuel Stroke Reference is the reference for the gas turbine fuel system that regulates the meI flow rate. It is displayed in units of percentage of FSR. 3-2.9. FUEL. The FUEL field displays the percentage of the primary fuel selected. For example, if a

3-2

Gas Turbine Control Operator’s Manual

40% oil and 60% gas mixture is selected, the display shows 60% gas. This machines only.

display

applies

to dual fuel

3-2.10. Date and Time. The Date and Time field is the control panel clock, which appears on all CRT displays. In the Startup and 3-2.11. FLAME/SPREAD. Shutdown operating modes, this field provides FLAME data. It displays the identification number of each flame scanner that is detecting a flame. In the Run operating mode, this field provides SPREAD data. It shows the difference between the highest and the lowest exhaust thermocouple temperature. The SPREAD is displayed in units of DEG F or DEG C (degrees Fahrenheit or Celsius). 3-2.12. IGV. the position of vanes in degrees only in the RUN

The Inlet Guide Vanes field displays the turbine compressor inlet guide of mechanical angle. IGV is displayed operating mode.

The Maximum Vibration field 3-2.13. MAKVIB. displays the maximum signal of all the vibration inputs. The display units are IPS (inches per second) or MM/S (millimeters per second). 3-2.14. SPEED LEVEL. The SPEED LEVEL field displays the gas turbine current speed level, which is a predefined speed point. The SPEED LEVEL is displayed only in the Startup and Shutdown modes of operation. Typical messages are: 0 0 l l

14HR 14HM 14HA 14HS

(Zero Speed) (Minimum Speed) (Accelerating Speed) (Operating Speed)

The message fields 3-2.15. Message 1, 2, and 3. display various messages associated with the gas turbine control. The following are typical messages. Message . .

1:

TRIP FAST LOAD START

Message 2: .

SEQ IN PROGRESS

Message 3: . .

IGV FULL OPEN IGV TEMP CONTROL

3-2.16. Alarm Messages. The Alarm Messages field displays the three oldest unacknowledged alarm messages, with the oldest at the top of the list. This display field is provided to avoid the need to switch to

Mark IV SPEEDTRONIC”

Gas Turbine Control Operator’s Manual

the more comprehensive Alarm Display. In addition, the number of previously acknowledged alarms is shown. An operator can silence, acknowledge, and reset an alarm without changing the display. This is done by pressing either the Alarm A& switch (F5) in the Display Functions group, or the Silence or Reset switches in the Alarm group. SELECT (Additional Parameters). The 3-2.17. SELECT field enables an operator to select three parameters to be displayed simultaneously, without needing to call up another display. These can be control or logic type signals, and can be called by their functional name used on the Gas Turbine Control elementary diagram.

The operator selects signals by typing the required signal name(s) on the Display Keypad switches, as follows:

START

UP

WARMING SELECT CONTRL TX....

Normal Display Function

Operator Action

To display signal in SELECT field

1. Type signal name 2. Press Enter

To clear all SELECT fieids

l.TypeO 2. Press Enter

This displays the logic or analog parameter in engineering units. When more than three signals are entered, the bottom signal is deleted from the display and the new signal is added to the top of the list. This display field assigns ALARM ACK. 3-2.18. the Alarm Acknowledge function to the Display Functions switch F,. Press this switch to acknowledge a flashing alarm message. This field is provided for IDENTITY. reference on multiple unit installations, and may be disabled on single unit installations. This field displays an optional two-character ASCII string for identifying the control panel or turbine being monitored. Maintenance personnel enter the ASCII string using the Administrative Display. 3-2.19.

13

STATUS

MAR

AUTO;START

FLAME

407

DEG

F

30:

13

#1#2#7#8

SPEED

TNHSET

40.00%

SPD

FAST

FSR

SEQ

12.6% 100.0%

ALARM.5

0.03IPS

MAXVIB

SPD

ACKNOWLEDGED

14:

STARTUP

20.00%

FUEL..

84

UP

SPEED.

FSR...

GEK-83885

LEVEL:14HM LOAD IN

START

PROGRESS

OIL

1

ID: Ul

SELECT TNH PR 1020 RPM ALARM ACK LlZ 0 LOGIC 0 LOGIC L2W

Figure 3-2. Startup Norm& [email protected]~

3-3

Mark IV SPEEDTRONIC”

GEK-83885

RUN FULL

13

STATUS SPEED

SELECT CONTRL

NO

DEG

SPEED.

lOO.OO%S

TNHSET

100.30%

F

DEG

59.ODGA

MAXVIB

0.22IPS

IGV

CONTROL

SPD FSR

100.0%

OIL

TEMP

AIR INLET TROUBLE

SELECT

BATTERY CHARGER A.C. UNDERVOLTAGE

TNHQR

CONTROL PANEL TEMPERATURE HIGH ACKNOWLEDGED ALARMS: 3 ID: Ul

0 LOGIC L3 1 LOGIC L14HSX

Figure 3-3. Running

SHUTDOWN ON SELECT CONTRL

5120 RPM

Norm1

LX$hy

15

MAR

STATUS

84

09:

ALA&M

01:

16

COOLDOWN FLAME

OFF; STARTUP

TX....

236

SPEED.

0.97%

DEG

SPD

F SR . .

0.0%

FSR

100.0%

SPEED

SPD

00%

O.OOIPS

MAXVIB

F

TNHSETO.

FUEL..

LEVEL:

SEQ

IN

ALARMS:

HR

PROGRESS

OIL

SELECT 50 RPM TNH_PR LlZ 0 LOGIC

ACKNOWLEDGED

14

TRIP

LUBE OIL HEADER HIGH TEMPERATURE TRIP

1

ID:

Ul

Figure 3-4. Shutdown Normal Display

3-4

F

PD

20.6%

TURBINE

14:55:43

19

IGV

558

FUEL..

84

SPREAD

SPEED

FSR...

MAR

LOAD

AUTO;

TX....

Gas Turbine Control Operator’s Manual

ALARM ACK

Mark IV SPEEDTRONIC”

3-3.

Gas Turbine

Control Operator’s

DISPLAYS

ALARM

The Alarm Display (see Figure 3-5) lists all gas turbine system alarm messages in chronological order, with the date and time that the alarm was recorded. The latest alarm appears at the top of the list, with the unacknowledged alarm drop numbers flashing. The Drop column shows the alarm’s identifying number. A “ 1” in this column shows that the alarm logic signal is in the Alarm state; a “0” shows that it’s in the Normal state. The operator can manipulate plays as follows:

alarms and alarm dis-

Function Press Switch Select Alarm Display Alarm

Switch Group Display Mode

Silence alarm horn

Silence

Alarm

Acknowledge alarm

Alarm Ack Display Functions (Flashing light changes to steady on)

Reset alarm

Reset Ah-m (Delete acknowledged& cleared alarms)

Lockout an alarm

1. Alum Lmout 2. Type drop no. 3. Entm (Drop no. appears

Unlock an alarm

1. Alarm Unloc $. gny; drop no.

Display Functions Display Keypad Display Keypad in inverse video)

Display Functions Display Keypad Display Keypad (Drop no. returns to normal video)

ALARM STATUS DATE 13 MAR84 13 MAR84 13 MAR a4 13 MAR84 13 MAR84 13MAR84 13 MAR84

TIME 14:29:46.0000 14:29:36.7500 14:28:30.8700 14:27:11.6200 14:26:49.6200 14:25:46.0000 14:24:20.5000

When an alarm is acknowledged, the display changes from flashing to steadily on. When the operator resets an acknowledged or cleared alarm, the system deletes it. Table 3-l shows a typical alarm sequence. Sometimes an oscillating 3-3.1. Alarm Lockout. alarm condition causes the alarm condition to repetitively set (alarm) and reset (normal). An “alarm lockout” feature enables the operator to prevent the system from continuously logging the event. Locking out the alarm latches it in its current condition. The latched alarm drop number appears in inverse video to remind the operator that the alarm is locked out. The drop number then remains in inverse video until the operator unlocks the alarm. For automatic alarm log3-3.2. Alarm Logging. ging, the panel mounted printer prints the appropriate alarm message each time the corresponding alarm logic signal changes status. It notes the status (alarm or normal) of the alarm logic signal. The alarm log format is: date, time, drop number, alarm message, and status (Alarm or Normal). Another group of alarm 3-3.3. Diagnostic Alarms. messages are the diagnostic alarms. Maintenance personnel use these to determine the nature of a fault condition within the control panel. This condition is identified by the alarm message DIAGNOSTIC ALARh4 - SEE DISPLAY. The Diagnostic Alarm display can be accessed by pressing the Diagn Alarm switch in the Display Functions group.

13 MAR 84 14 : 30 : 58 DROP CO146 1 co145 1 CO160 1 COO631 CO232 1 CO162 1 coo09 1

GEK-83885

Manual

TURBINECOMPARTMENT TEMPERATURE HIGH CONTROLCOMPARTMENT TEMPERATURE HIGH BATI’ERY CHARGER A.C. UNDERVOLTAGE TURBINE AIR INLET TROUBLE DIAGNOSTIC ALARM - SEE DISPLAY BATTERY 125V D.C. GROUND LUBE OIL PRESSURE SWITCH TROUBLE

PAGE 001: NEXT PAGE

DIAGN

ALARM LOCOUT

UNLOC

ACK

F&we 3-5. Alarm Display

3-5

Mark IV SPEEDTRONIC”

GEK-83885

Table 3-l. Alarm Input

Typical Sequence for Silencing, Acknowledging,

System Response Alarm horn sounds. In Normal Display mode: the oldest three unacknowledged alarm messages are displayed flashing. In Alarm Displa mode: data for each alarm is displayed with the new drop numbers Hashing. Printer prints the data for each new alarm.

Press Silence switch

Alarm horn silences. Alarms continue to flash.

Press Alarm Ack switch

In Normal Display mode: the three dis layed alarms are acknowled ed and the messages are de Peted from the Normal Displa The next tKree oldest unacknowledged alarm messages are displaye 8.. In Alarm Display mode: all alarms are acknowledged to steady on. In Alarm Display mode: Alarm status changes from “1” (alarm) to “0” (normal). Printer prints the data for each cleared (normal) alarm.

Input returns to normal (clears) Press Reset

All acknowledged

MANUAL CONTROL DISPLAYS

The operator Control

and maintenance personnel use Manual Displays to perform tasks such as a mechanical

overspeed ;esi, minually suppressing (gagging) the fuel stroke reference. manuallv surmressimz the inlet guide vanes, and selkcting cooido; mode: Each function has a separate Manual Control display, called a page. Each page assigns the function to the Display Functions switches, used in the manual control. In addition to the data relevant to the selected function, each page of the display also contains the primary data from the Normal Display. The operator follows:

and cleared alarms are deleted.

Cooldown On Mode is automatically selected on shutdown, and Cooldown Off or Cooldown On Mode may be manually selected as follows:

Function

Press switch

Switch Group

Manual Control display

Man Ctl

Display Mode

Auxiliary Control display

Change Page

Display Functions

(Repeat until AUXILIARY is displayed.)

next Manual Control page

Holding down Change Page decrements Press Switch

Switch Group

Manual Control display

Man Ctl

Display Mode

Next Manual Control function display

Next Page

Display Functions

the page numbers.) Cooldown On

Display Functions

(If aII permissives for Shutdown Status, including Operation Off, are satisfied, the ON COOLDOWN message is displayed.)

3-6 shows a typical display of manual control of the auxiliaries using Cooldown Mode selection.

3-4.1. COOLDOWN OFF/ON Manual Selection. permissives that govern the cooldown operation vary, depending on the operating mode and status. They also may vary with the application requirements. The permissives must be met for the control to accept the Cooldown Mode selection commands. Typically,

cooldow?l on

(SEQ IN PROGRESS message displayed during cooldown sequence.)

Figure

3-6

CONTROL

(Each push of Change Page increments to

can access Manual Control Displays as

Function

The

and Resetting Alarms

Operator Action

Fault occurs

3-4.

Gas Turbine Control Operator’s Manual

Cooldown Off

cooldoWl off

Display Functions

(If aII permissives are met, such as if mandatory cooldown time has expired, the OFF COOLDOWN message is displayed; SEQ IN PROGRESS and ON COOL DOWN messages are deleted.)

GEK-83885

Mark IV SPEEDTRONICm Gas Turbine Control Operator’s Manual

MANUAL

SOFT SW’S ENABLED

AUXILIARY

NAME

UNITS

VALUE

STATUS

ON COOLDOWN

CONTROL

STARTUP

CONTROL

14 MAR 84 14:01:52

NAME

PAGE 001 CHANGE PAGE

CONTROL VALUE

UNITS

430

DEG F

TNH

0.97

% SPD

TN-R

95.00

% SPD

COOLDOWN

0.0

% FSR

ON

FSR CSGV SPDLVL.

34.00

DGA COOLDOWN OFF

14HR

MESSAGE1 MESSAGE2

SEQ IN PROGRESS

MESSAGE3 SELECT:

Figure 3-6. Manual Control Disphy: Auxiliary Control

3-7

GEK-83885

3-5.

Mark IV SPEEDTRONICN Gas Turbine Control Operator’s Manual

DATA (DISPLAY

MENU) DISPLAYS

The Display Menu (see Figure 3-7) contains the list of available displays. It also includes the SELECT LIST ## field in the upper left comer, in which the “##” number identifies the previously selected data list. The operator can return to this list by pressing the Enter switch, without having to retype the list number. The operator can access a variety of displays by first selecting the Display Menu, then selecting the desired List number from the Display Menu, as follows: Function Display Menu

Press Switch 1. Da.!u

Switch Group Display Mode

Data List

1. Type list no. fi-om Display Menu 2. Enter

Display Keypad

Another Data List

1. Data 2. Type list No. 3. Enter

Display Mode Display Keypad Display Keypad

Return to last selected Data List

1. Data 2. Enter

Display Mode Display Keypad

Display Keypad

(Enters Select List no. from upper left of Display Menu)

3-7 (not on the actual display), an asterisk (*) marks displays typically used by an operator. Those

On Figure

SELECT LIST 01 LIST

3-5.1. Data List 01: Exhaust -Thermocouples. This data list displays the exhaust thermocouple temperatures (see Figure 3-8). Press the Next Page or Previous Page switch in the Display Functions group to display another data list page, if one exists. 3-5.2. Data List 02: Wheelspace Thermocouples. This data list displays the wheelspace thermocouple temperatures (see Figure 3-9). Press the Next Page or Previous Page switch in the Display Functions group to display another page, if one exists. 3-5.3. Data List 03: Lube Oil (Bearing Drain TherThis data list displays the lube oil mocouples. (bearing drain) thermocouple temperatures (see Figure 3- 10). Press the Next Page or Previous Page switch in the Display Functions group to display another page, if one exists. 3-5.4. Data List 04: Timers and Event Counters. This data list displays the current values of timers and counters such as FIRED TIME and TOTAL STARTS (see Figure 3-11). Press the Next Page or Previous Page switch in the Display Functions group to display another data list page, if one exists.

DISPLAY MENU

TITLE

00

CONTROL

*01

EXHAUST

*02

WHEELSPACE

LIST

REFERENCE

10

THERMOCOUPLES THERMOCOUPLES

*03

LUBE OIL THERMOCOUPLES

*04

TIMERS AND EVENT COUNTERS

05 06 *07

not marked are used for maintenance. Figures 3-8 thru 3-12 and the following paragraphs discuss the operator displays.

WET LOW NOX DATA

11

TITLE TRIP DISPLAY ANALOG OUT DISPLAY

**12

DEMAND DISPLAY

**13

RUNG DISPLAY

14

HCVA SERVICE DISPLAY

15

ANALOG CONTROL

16

LOGIC FORCING

17

08

18

INTER-PROCESSOR

LOGIC DATA

09

19

INTER-PROCESSOR

REAL DATA

OA

1A

CONTACT

OB

1B **1c

oc OD

CATEGORY

OE

COMPOSITE

OF

COMPOSITE

RELAY OUTPUTS ADMINISTRATIVE

1D

CONTROL

LOGICS

1E

MEMORY

RELALS

1F

DIAGNOSTIC

0 COMPOSITE

*Display used by Operator. **Display used by both operator and maintenance.

Figure 3-7. Dispk.zyMenu 3-8

INPUTS DISPLAYS

CONSTANTS DISPLAYS

Mark IV SPEEDTRONIC”

DATA LIST

GEK-83885

Gas Turbine Control Operator’s Manual

01

PAGE 000 PREVIOUS PAGE

14 MAR 84 13:54:17 EXHAUST THERMOCOUPLES

NAME

VALUE

UNITS

NAME

T-l-XC

792

DEG F

Tl-XDl,1 TTXDI,2 lTXD1_3 m(Dl_4 TTXDl,5 TTXDl,6 TTXDI,7 TTXDI,8 -ITXD1_9

792

DEG DEG DEG DEG DEG DEG DEG DEG DEG

840 821 836 828 828 845 849 828

F F F F F F F F F

VALUE

UNITS NEXT PAGE

Tl-XDl_lO TlXD1,ll T-IXDI,12 TTXDl,13 Tl-XDl,14 l-l-XD1_15 TTXD1_16 ‘ITXD1_17 TTXD1_18

DEG DEG DEG DEG DEG DEG DEG DEG DEG

818 817 808 808 817 818 820 828 820

F F F F F F F F F

Figure 3-8. Exhaust Thermocouples

DATA LIST

02

14 MAR 84 13:54:17 WHEELSPACE THERMOCOUPLES

NAME

NAME

VALUE

PAGE 000 PREVIOUS PAGE

UNITS

VALUE

UNITS

TlWSIFIl TlWSIFI2

741 740

DEG F DEG F

TTWSSFO 1 TTWS3F02

910 921

DEG F DEG F

TTWSIFOl TlWSlFO2

773 762

DEG F DEG F

TTWSSAO 1 ‘TT’WS3AO2

727 682

DEG F DEG F

TI-WSlAOl TTWS IA02

818 822

DEG F DEG F

TlWS2FOl TTWSPFO2

811 812

DEG F DEG F

TTWS2AOl TTWs2Ao2

881 850

DEG F DEG F

NEXT PAGE

Figure 3-9. Wheelspace Thermocouples

3-9

GEK-83885

Mark IV SPEEDTRONIC”

DATA LIST

02

Gas Turbine Control Operator’s Manual

14 MAR 84 13:54:17 Ul

VALUE

NAME

UNITS

NAME

PAGE 000 PREVIOUS PAGE

LUBE OIL THERMOCOUPLES VALUE

UNITS

LTTH

127

DEG F

NEXT

LTRGID

163

DEG F

PAGE

LTRGPD

169

DEG F

LTRGJD

179

DEG F

LTRG4D

153

DEG F

LTRGSD

185

DEG F

LTGIDI

157

DEG F

LTGPD 1

150

DEG F

Figure 3-10. Lube Oil Thermocouples

DATA LIST

04

TIMERS AND EVENT COUNTERS

14 MAR 84 13:54:17 Ul

PAGE 000 PREVIOUS PAGE

NAME

TITLE

VALUE

UNITS

TIMROI

FIRED TIME

0 000 690.2

HOURS

NEXT

TIMROQ

PEAR FIRED TIME

0 000 224.9

HOURS

PAGE

00 000 007

CNTS

00 000 008

CNTS

CNTROl

MANUAL INITIATED

CNTROZ

TOTAL

CNTROS

FAST LOAD STARTS

00 000 001

CNTS

cNTRo4

FIRED STARTS

00 000 008

CNTS

cNTRo5

EMERGENCY

00 000 000

CNTS

STARTS

TRIPS

STARTS

Figure 3-l 1. Timers and Event Counters

3-10

Mark IV SPEEDTRONIC”

3-5.5.

Data List 07: Wet Low Nox Data

Average Fuel Flow: for example, LIQ(uid) FUEL Average Injection Flow: for example, WATER Average Actual Injection to Fuel Ratio: labeled ACTUALRATIO Average Required Injection to Fuel Ratio: labeled REQUIRED RATIO

3-5.5.1. WET LOW NOX DISPLAY. Data List 07 displays the data required to verify the compliance with low nitrous oxide emission regulations (see Figure 3- 12). This data list consists of the Hourly Average and the Minute Averages. The Minute Average is the average of the inputs during each minute. It is calculated when the Wet Low Nox control is enabled. Data List 07 displays the last 10 sets of Minute Averages with the latest data at the top of the list.

The 3-6.5.2. WET LOW NOX PRINTER LOG. panel-mounted printer automatically prints out both the Hourly Average log and the Minute Averages log. The Hourly Average log prints out once each hour when: (1) the Wet Low Nox control is enabled and (2) 60 of the minute averages have been accumulated.

The Hourly Average is the average of the last 60 minute averages. It is calculated each minute when the Wet Low Nox control is enabled and 60 of the minute averages have been accumulated. Data List 07 displays the last calculated Hourly Average, which consists of one set of data. Each set of data, which is displayed consists of the following:

Date and Time of the average calculation

0

Average Fuel Flow: for example,

DATA LIST 07

GAS FUEL LBSISEC

14 MAR 84 20 : 29 : 00 MINUTE AVERAGES TIME

84 84 84 84 84 84 84 84 84 84

20 20: 20: 20: 20 20: 20 20 20: 20:

Each printout consists of 60 sets of minute averages that were used in the last hourly average calculation.

GAS FUEL

14 MAR 84 20 : 29 : 26

WET LOW NOX DATA

HOUR AVERAGE TIME

MAR MAR MAR MAR MAR MAR MAR MAR MAR MAR

Each printout consists of one set of data. The Minute Averages log prints out each hour when: (1) the Wet Low Nox control is enabled, (2) a quantity of 60 of the minute averages have been accumulated, and (3) the REQUIRED RATIO is greater than the ACTUAL RATIO for the hourly average.

on one line,

0

14 14 14 14 14 14 14 14 14 14

GEK-83885

Gas Turbine Control Operator’s Manual

: 29 28 27 26 : 25 24 : 23 : 22 21 20

14.75

GAS FUEL LBSISEC 00 00 00 i: 00 00 00 00 00

14.75 14.75 14.75 14.75 14.75 14.75 14.75 14.75 14.75 14.75

LIQ FUEL LBS/SEC 0.00

LIQ FUEL LBS/SEC 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00

WATER... LBS/SEC

ACTUAL.. RATIO

7.49

0.270

WATER... LBSJSEC

ACTUAL.. RATIO

7.49 7.49 7.49 7.49 7.49 7.49 7.49 7.49 7.49 7.49

0.270 0.270 0.270 0.270 0.270 0.270 0.270 0.270 0.270 0.270

REQUIRED RATIO 0.262

REQUIRED RATIO 0.262 0.262 0.262 0.262 0.262 0.262 0.262 0.262 0.262 0.262

Figure3-I2. Wet Low Nox Display

3.11

GEK-83885

Mark IV SPEEDTRONIC”

3-5.6. Data List 12: Demand Display. This data list enables the user to display up to 64 selected data points or signal names on two pages of the CRT display. Figure 3-13 shows the normal Demand Display. (“Normal” is when the Demand Display is not in a Set Mode.) Each item in the list consists of the Name, Value, and Units (for example, TTXM, 821, DEG F). This data list can be printed on the panel printer either by manual initiation or automatically. A manual copy prints only the page currently displayed on the CRT. An automatic log periodically prints all the pages of the data list with the header message “Demand Display Log.” While the automatic log mode is selected, the data list is printed after each expiration of the specified time interval. The time interval may be set from continuous operation up to 24 hours. Figure 3-14 shows the reassignment of the Display Functions switches during the Set Time mode.

Press Switch 1. Data 3. znJp; 12

Switch Display Display Display

Group Mode Keypad Keypad

(Displays Data List 12)

2. Manual printout of current page

1. Copy

Selection 1. Data List 12

1. Next or Previous Page

2. Set Lo Perio rI

(Displays another page) 2. COPY

Printer

(Prints current CRT display)

3-12

Press Switch

Switch Group

1. Data 2. Type 12 3. Enter

Display Mode Display Keypad Display Keypad

1. Set Time On/ Off once

Display Functions

(a. Enters Set Time mode) (b. Display Function switches redefined) 2. Increcxe Period or Decrease Period

Display Functions

(Until desired Log Period is displayed: 0000 Min. = contnuous log. 1439 Min. = Log every 24 hrs., max.) 3. Set Time On/ Off once

Display Functions

(Exits Set Time mode)

3. Turn on Auto Log

I. Set Log On/ off once

Display Functions

(a. Log Period displa changes to inverse video, indicating x at Auto Log is on) (b. Printout occurs at the end of each repeated Log Period)

Printer

Display Functions

Manual

(Displays Data List 12)

(Prints current CRT display)

3. Manual printout of another page

Control Operator’s

3-5.6.2. AUTOMATIC DEMAND DISPLAY LOG PRINTOUT. The following steps show how an operator initiates automatic printout of the Demand Display log.

3-5.6.1. MANUAL COPY OF DEMAKD DISPLAY The following steps show how an operator manually initiates a printout of a Demand Display. Selection 1. Data List 12

Gas Turbine

4. Turn off Auto Log

1. Set Log On/Off once

Display Functions

(Log Period display returns to normal video)

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DATA LIST 12

NAME

GEK-83885

Gas Turbine Control Operator’s Manual

DEMAND DISPLAY

VALUE

TTXM FSR BBl L4

821 0.0 0.00 0

UNITS

NAME

14 MAR 84 10:47:

VALUE

30 PAGE000 _ PREVIOUS PAGE

UNITS NEXT PAGE

DEG F % FSR IPS LOGIC

INSERT ENTRY DELETE ENTRY SET LOG ON/OFF

SET TIME ON/OFF

LINK STATUS R S T 0 FAILED LOG PERIOD = 240 MINUTES:

Figure 3-13. Demand Disphy (Norm&)

DATA LIST 12

NAME T-I-XM

FSR BBI L4

DEMAND DISPLAY

VALUE 821 0.0 0.00 0

UNITS

NAME

14 MAR 84 10 : 47 : 30

VALUE

PAGE 000

UNITS

DEG F % FSR IPS LOGIC INCREASE PERIOD DECREASE PERIOD SET LOG ON/OFF

LINK STATUS R S T 0 FAILED LOG PERIOD = 240 MINUTES

SET TIME ON/OFF

Figure 3-14. Demand Display (Set Time Mode)

3-13

Mark IV SPEEDTRONIC”

GEK-83885

The Rung Data List 13: Rung Display. 3-4.7. Display presents the control Sequencing data in a ladder diagram format. This display provides a convenient method of reviewing the sequencing data, and the current status of each component. Maintenance personnel use this display for troubleshooting, but operators can use it to review the condition of specific functions. The Display Functions switches are used to change displays, find a rung by signal name, find rungs that use a particular signal name, and to switch between R, S, T, and C sequencing. Each screen displays one rung. Figure 3-15 shows a typical rung display. The system provides two methods to indicate the current value of each contact and coil in the ladder diagram. The CRT uses inverse video to indicate continuity thru a contact and to indicate that a coil is energized. However, since printed copy cannot use this method, it places a “-” under each closed contact and energized coil.

Gas Turbine Control Operator’s Manual

Selection 4. End rung

5. previous displayed rung

Press Switch 1. Data 2. Type 13 3. Enter

Switch Group

2. Current program

1. Select (F,)

Display Functions

3. First rung

Display Mode

Display Keypad Display Keypad

(Toggles between < RST> sequencing) 1. Begin (FI)

and

Display Functions

(Displays the first rung of sequencing)

3-14

SwitchGroup Display Functions

1. Last (Fs)

Display Functions

(Displays the previously displayed rung) (Can be used to toggle between two rungs)

6. previous sequential rung

7. Next

sequential rung

8. zg

Used

1. PreLJ (FJ

Display Functions

(Displays the rung sequentially located before the current rung) 1. Next (F5)

Display Functions

(Displays the next sequential rung) 1. Right Arrow 2. Type signal 3. Enter

Display Cursor Display Keypad Display Keypad

(Find a rung where a particular signal is used as an input) (Dis lay Functions switches now search for 91 e Begin (first se uentjal), End (last sequential), Last 4.prevlous display), Frey sequentral, and NeXT sequenual run usmg the speafied stgnal within the seHected sequencing program.)

show how to use the Rung

Selection 1. Data List 13

1. End (&)

(Displays the last rung of sequencing)

For reference, the display also includes the current value of variables used in special functions, such as timers. These special functions are shown enclosed in a box. Refer to Figure 3- 16 for an example of a timer function. The following procedures Display.

Press Switch

9. Rung mode

1. [email protected] 2. Type signal 3. Enter

Display Cursor Display Keypad Display Keypad

(Find a rung with the specified signal as the output coil) (Normal Display mode, Display Functions keys now select for the Begin (first rung), End (last rung), Last ( revious display)! Prey sequential, an f! Next sequenual rung withm the selected sequencing program.)

Mark IV SPEEDTRONIC”

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Gas Turbine Control Operator’s Manual

DATA LIST 13

14 MAR 84 13:54:17

RUNG DISPLAY

SELECT L4 _ i L4S L4T L94T i--__] [______i_______~[______-____I/ [____-___________--____--_-_-__----__-___~__(R)----~ i i i L4Xl i i L4 i a___-(R)-i___-_]I_-___* i

i i i BEGIN i

i

-

END

PREV CURRENT PROGRAM: RSTSEQ LINK STATUS

ENTER SIGNAL NAME:

RUNG RlX

WHERE USED L4

NEXT

R S T 0 FAILED

Figure 3-15. Rung Display (Typical)

DATA LIST 13

14 MAR 84 13:54:17

RUNG DISPLAY

+ _________ -__- _-_--___--+ L2WQON i-I/[-----___-_---__i__-_--] [------_i T&fV i I Ei i L83WQ L83WQY i i K: KZWQOFl i_I/[__-_-__I/[---__! I 2.0 i i SEC i i i i C: TPWQOFl i i 0.0 1 I SEC

i LSWR

I

I

i

+ _-____------

SELECT L2WQOFl i i--_-----_(R)-+ i i i BEGIN i i i I i i i i END i i i i i i i + iL4ST

PREV CURRENT PROGRAM:

ENTER SIGNAL NAME:

C-=Q LINK STATUS

RUNG LPWQOFI

WHERE USED L3

NEXT

R S T 0 FAILED

Figure 3-16. Rung Dtipluy (Timer)

3-15

GEK-83885

3-5.8.

Mark IV SPEEDTRONIC”

Data List 1C: Administrative

Displays Menu

Data List 1C is the list of available Administrative Displays. This menu contains a SELECT ## field in the upper left comer. The “##” is the identifying number of the previously selected menu list. The operator can return to this list by pressing the Enter switch, without having to retype the list number. The operator can select different Administrative displays by first selecting Data List lC, Administrative Displays, and then selecting the desired List number from the menu. Figure 3-17 shows a typical Administrative Displays menu. The following procedures Administrative displays. Selection 1. Data List

show how to access

Press Switch 1. Data

the

Switch Group Display Mode

2. Administrative 1. Type List No. 1C Displaysmenu 2. Enter

Display Keypad Display Keypad

3. Administrative 1. Type Display No. Display from list of displays 2. Enter

Display Keypad

4. Another $$?:$trative

Display Keypad

1. Exit (F,,) (Returns to list) 2. Type Display No. 3. Enter

Display Functions Display Keypad Display Keypad

DATA LIST 1C

ADMINISTRATIVE

Gas Turbine Control

Selection 5. Return to last selected Administrative Display

3-5.9.

Press Switch 1. Exit (F,) 2. Enter

01 02 03 04 05 06 07 08

Switch Group Display Functions Display Keypad

Administrative

Displays List No. 00: Admin-

This display enables the operator istrative Display. to set the date and time, and to select the type of scaling units to be used in displaying data. Figures 3-18 and 3-19 show these displays. The Security Code selection, Identify Code selection, and PROM Identification Numbers are for maintenance use. The Identify Code is an optional P-character ASCII string that can be used to identify most data list displays and logs on multi-unit installations. When enabled, it appears between the Date/ Time field and the Page Number field on most displays. It is printed in the space between logs in the format “ID: ##“, where ## is the ASCII string entered using this display. Refer to Figures 3-18 and 3- 19 for typical examples of displays with identity code enabled. The identity code also appears on the Normal Display (see paragraph 3-2 and Figure 3-4).

DISPLAYS

00 000 00 00:50:36

ADMINISTRATIVE DISPLAY (SET TIME: SCALING CODE: SECURITY CODE) RENAMEABLE LDATA POINT SUMMARY RENAMEABLE IDATA POINT SUMMARY SCALING DATA SUMMARY LDATA/IDATA MODIFICATION DISPLAY (PLUS CONTROLCONSTANTS DISPLAY ADDITION) ALARM MESSAGE LIST ALARM TEXT MODIFICATION DISPLAY EEPROM MAINTENANCE DISPLAY OPTIONS DISPLAY

Figure 3-17. Administrative

3-16

Manual

(Enters Select No. from upper left comer of Administrative Displays screen.)

SELECT 00 00

Operator’s

Displays (Menu)

Mark IV SPEEDTRONIC”

ADMINISTRATIVE

DISPLAY

13 MAR 84 20:20:21 Ul EXIT

TIME / DATE SETTING: I) PRESS SOFTSWITCH Fl 2) ADJUST DAMIME AND ENTER SCALE SET SELECTION: 1) PRESS SOFT-SWITCH F2 2) ENTER DESIRED SCALE NUMBER: SCALE SET 1 SELECTED SECURITY CODE SELECTION: 1) PRESS SOFTSWITCH F3 2) ENTER MASTER CODE 3) ENTER NEW USER CODE

I

GEK-83885

Gas Turbine Control Operator’s Manual

SET TIME and DATE 0 1 2 3

= = = =

HARDWARE UNITS ENGLISH UNITS METRIC UNITS SPECIAL UNITS

PROM IDENTIFICATION NUMBERS: SYS PSAXXX XXXXXXP05 cc> REQ PS-PO1 -cc> cSEQ> PSAxxxxxxxxxPO3 c EEGRP > PSAxxxxxxxxxPO4 CR> PSAxxxxxxxxxPO2 PSAxxxxxxxxxPO2 PSAxxxxxxxxxPO2

CONTROL IDENTITY SELECTION: 1) PRESS SOFTSWITCH F4 2) ENTER USER CODE 3) ENTER NEW IDENTITY

SET SCALING

SET USER CODE

SET CTRL IDENTITY

Figure 3-18. Administrative Display (Normal)

ADMINISTRATIVE

DISPLAY

TIME / DATE SETTING: I) PRESS SOFTSWITCH Fl 2) ADJUST DATE/TIME AND ENTER

13 MAR 84 20:20:21 EXIT

13 MAR 84 20:20:21 INC

SCALE SET SELECTION: I) PRESS SOFTSWITCH F2 2) ENTER DESIRED SCALE NUMBER: SCALE SET 1 SELECTED SECURITY CODE SELECTION: 1) PRESS SOFTSWITCH F3 2) ENTER MASTER CODE 3) ENTER NEW USER CODE CONTROL IDENTITY SELECTION: 1) PRESS SOFT-SWITCH F4 2) ENTER USER CODE 3) ENTER NEW IDENTITY

0 1 2 3

= = = =

HARDWARE UNITS ENGLISH UNITS METRIC UNITS SPECIAL UNITS

PROM IDENTIFICATION NUMBERS: cc> SYS PSAxxxxxxxxxPO5 REQ PSAXXXXXXXXXPO 1 cc> cSEQ> PSAXXXXXXXXXPO3 < EEGRP > PS-PO4 CR> PSAxxxxxxxxxPO2 PSAxxxxxxxxxPOP CT> PSAxxxxxxxxxPOP

DEC

NEXT

ENTER

Figure 3-19. Administrative Display (Set Time and Date Mode)

3-17

Mark IV SPEEDTRONIC”

GEK-83885

The follow3-5.9.1. TIME AND DATE SETTING. ing steps show how to set the time and date, using “27 Mar 84 15:13:00” as the example. Selection

Press Switch

Switch Group

1. Data List 1C

1. Data ;* in?;

Display Mode

1. Set Time And Date

Display Functions

(The clock time and date are dis layed with the cursor positioned un t; er the Day of the Month field.) 3. Day of month

1. Inc or Dee to 27

Display Functions

(Displays 27 000 00 0O:OO:OO) 4. Month

1. Next

Display Functions

(Cursor moves to Month field) Display Functions 2. Iru or Dee to MAR (Displays 27 MAR 00 0O:OO:OO) 5. Year

Selection

Press Switch

Switch Group

10. Cancel Set Time and Date mode. (before Enter), and return to Menu.

1. Exit

LXspkzyFunctions

1. Next

3-5.9.2. SCALE SET SELECTION. steps show how set the scaling units.

2. Inc or Dee t? 84

Press Switch

Switch Group

1. Data List 1C

1. Data 2. Type 1C 3. Enter

Display Mode

(Administrative Display menu) 2. Menu List 00

3. Sme;jezaling

2. Inc or Dee to 15

Display Functions

(Displays 27 MAR 84 15:00:00) 7. Minute

1. Next

Display Functions

(Cursor moves to Minute field) 2. Inc or Dee Display Functions to 13 (Displays 27 MAR 84 15:13:00) 8 Second

1. Next

Display Functions

(Cursor moves to Second field) 2. Inc or Dee Display Functions to 00 (Displays 27 MAR 84 15:13:00) 9. Enter selected Time

3-18

1. Enter

Display Functions

(The clock is set to the new value. The Set Time and Date mode terminated).

1. Set Scaling

Display Functions

(Messa e displa s Scale Set No. selected. Set Sca%ng mo& terminated.)

Display Functions Display Functions

Display Keypad Display Keypad

(Message flashes: Enter new scale set) Display Keypad 2. Type Scale Set No: 0 = Hardware units, ically volts 1 = zpnglish units 2 = Metric units 3 = Special units, typically CNT15 Display Keypad 3. Enter

(Displays 27 MAR 84 0O:OO:OO) 1. Next

1. Type 00 2. Enter (Administrative)

Display Functions

(Cursor moves to Hour field)

The following

Selection

(Cursor moves to Year field)

6. Hour

(Time and date are not changed.)

1C

(Administrative Display menu 2. Set Time and Date mode

Gas Turbine Control Operator’s Manual

4. Cancel Set Scaling mode (before Enter)

3-6.

1. Exit

Display Functions

(Return to Administrative Menu).

RESET DISPLAY

Only authorized personnel should use the Reset function. The Reset Display Mode (Figure 3-20) pro-

vides means of resetting “latched” conditions. When certain abnormal or trip conditions occur, the sequencing logic latches the condition to prevent the restart of the gas turbine. After the cause has been investigated and corrected, the condition may be reset using the following steps. Selection 1. Select Reset Display Mode

Press Switch

Switch Group

Reset

Display Mode

2. Initiate Reset

Master Reset

Display Functions

Mark IV SPEEDTRONIC”

GEK-83885

Gas Turbine Control Operator’s Manual

13 MAR84

21:15:30 MASTER RESET

LOCKOUT

LOCKOUT

FUNCl-‘ION

FUNCTIONS

UNIT RESTARTED

MASTER RESET SWITCH

MUST NOT BE RESET NOR THE

WITHOUT

INVESTIGATION.

CAUSE MUST BE UNDERSTOOD

THE

AND CORRECTED

IF

NECESSARY. FAILURE TO DO SO CAN RESULT IN DAMAGE TO THE EQUIPMENT

Figure 3-20. Reset Display Mode

3-19

GEK-83885

Mark IV SPEEDTRONIC”

-

3-20

Notes -

Gas Turbine Control Operator’s Manual

Mark IV SPEEDTRONIC”

Gas Turbine

Control

Operator’s

GEK-83885

Manual

CHAPTER 4 AUXILIARY DISPLAY 4-1.

INTRODUCTION

4-2.

OPERATOR INTERFACE DEVICES

The Auxiliary Display consists of a digital display,

The Auxiliary Display, located

in the upper right corner of the Operator Interface Module (see Figure 4-l), functions as a CRT backup. It enables an operator to observe key system parameters (List Mode), and to observe and acknowledge all alarms (Alarm Mode) from data selected from any one of the four control panelcomputers CC>, CR>, , or .

computer status indicating lights, and two groups of switches. These devices are described below. Functiou/VaIue Digital Display. 4-2.1. ital display has two fields: 1.

Section 4-3 provides Auxiliary Display operating instuctions. These instructions are also available on the Auxiliary Display instruction plate, normally stored in the drawer with the panel printer. This plate has a magnetic backing for attaching it to the panel front when using the Auxiliary Display.

This dig-

Function (3 digits) - When the List Mode is selected, the list point number is displayed. - When the Alarm Mode is selected, the alarm drop number is displayed.

nhicTmD*-

-VALUE-

AUXILIARY DISPLAY - DETAIL VIEW -

L,W uY)n -

SECTION

IB”lll”lm13D]

SELECTOR -

fJ”fJoiptio -

~rnm-l

SECTlOWS RUNNINO 6

b

b

b

OPERATOR INTERFACE MODULE - PANEL VIEW -

Figure 4-l. Auxiliary Disphzy of Operator Interface Module

41

Mark Iv SPEEDTRONIC”

GEK-83885

2. Value (4 digits) - When the List Mode is selected, the value of the point number is displayed in engineering units along with the decimal, when applicable. - When the Alarm mode is selected, the Value field is blank. The Function/Value display may show a numeral “1” continuously rotating fi-om right to left. This is normal and indicates that the List Mode or Alarm Mode can be selected (see paragraph 4-3). 4-2.2.

SECTIONS RUNNING

Lights: C, R, S, and

These four lights continuously monitor the running status of the panel computers: communicator and < R > < S > CT> controllers. A light on indicates that the computer is operating.

T.

4-2.3.

SECTION

SELECTOR Switches: C, R, S,

and T.

Gas Turbine Control Operator’s Manual

Select this mode to exit the current display mode or to enable the selection of another display mode: Press Switch Shif

Switch Group

1. Mode

2. State

Exit

Function Selector

Selection

(“1” rotates through the display)

This mode displays a predeList Mode. fmed list of data points that are displayed one at a time for 2 seconds each as they are rotated through the display. The rotation can be stopped and the points stepped one at a time.

4-3.2.

These data points are the primary control parameters and are shown in the same order and with the same units as shown in the Normal Display. The following is a typical list of points displayed in the List Mode.

These four switches enable an operator to select the computer for which data to be displayed: C, R, S, or T.

FUNCTION

4-2.4. FUNCTION SELECTOR Switches. These twelve switches include the alpha-numeric characters 1 thru 9 and A thru F, plus the following auxiliary switches:

000 001 002 003 004

Shift

Accesses the second group of characters shown at the top of the switches.

Next

Increments

Prev

Decrements

Exit

Exits the currently displayed mode.

List

Identifies the numeral “0” as the switch for selecting the List Mode.

Alarm

Identifies the numeral “1” as the switch for selecting the Alarm Mode.

The Function Selector ator to:

the displayed function. the displayed function.

switches are used by the oper-

Select List or Alarm Display

l

Acknowledge alarms

l

Increment

0

Exit the current display

4-3.

DISPLAY DESCRIPTION TX . . . . . SPEED . . . TNHSET . . FSR . . . . . *FUEL . . .

0792 100.0 103.8 073.0 100.0

DEG F % SPD %SPD % FSR % OIL

* For dual fuel gas turbines, only. The following procedures

show how to display the List Mode using the Auxiliary Display switches.

Selection 1. Computer to be displayed

Press Switch

Switch Group

1. C, R, S, or T

Section Selector

(Corresponding 2. Mode Select State

1. [email protected] 2. Emt

light comes on) Function Selector Function Selector

3. List Mode

Function Selector l.TypeO (Displays List points one at a time for 2 seconds each, rotating them through the display)

4. Stop List rotation and step points

1. Shiji 2. Next or

the display

AUXILIARY DISPLAY MODES

The Auxiliary Display has three modes available for operator use: Mode Select State, List, and Alarm. 4-3.1. Mode Select State. This is the normal mode for the display and is indicated by the numeral “ 1” continuously rotating from right to left through the Value and Function digital display fields.

4-2

VALUE 0792 100.0 103.8 073.0 100.0

(“1” Rotates through the display)

l

or decrement

Function Selector

Function Selector Function Selector

PWZtk-US (Ike Next or Prev point displayed

continuously) 5. Exit List Mode

Function Selector 1. Shift Function Selector 2. Exzt (“1” rotates through the display)

Mark IV SPEEDTRONIC”

Gas Turbine

Control Operator’s

4-3.3. Alarm Mode. This mode displays all of the existing alarm drop numbers, one at a time, with the unacknowledged alarm drop numbers flashing and with the acknowledged alarm drop numbers steady on. The alarms are listed in the order of their occurrence with the latest alarm appearing first in the alarm list. The alarms are acknowledged with the Function Selector Next switch and the display is incremented or decremented with the Next or Prev switch. The alarms are silenced and reset with the Alarm group switches. Whenever there is valid communications between the , , and CT> controllers and the CC> communicator (all four Section Running lights are on), the alarms in the < R> , < S > , and CT> controllers are automatically acknowledged and reset, thus the < R > , < S > , and controller alarms are displayed steady on and the CC> communicator new alarms are displayed flashing. The communicator alarms (both the CRT and Auxiliary Display) can be acknowledged either with the Auxiliary Display group’s Function Selector switches or with the CRT Display Function’s Acknowledge switch. If the < C > communicator should fail ( c C > Section Running light ofE), the < R > , c S > , and controller new alarms are displayed flashing to indicate to the operator which alarms have occurred since the communicator failed. The , , and controller alarms must be separately acknowledged by repeating the following Alarm Mode display and acknowledge procedure for each controller. Selection

1. Computer to be displayed 2. Mode Select State

Press Switch 1. C,R,S, or T (Corresponding

Press Switch

5. Decrement the display

Function Selector 1. Shz$t Function Selector 2. Prev (The previous (older) drop No. is displayed)-

6. Increment the display

Function Selector I. Shift Function Selector 2. Next (The next (newer) drop No. is displayed)

7. Exit Alarm Mode

1. Shifii 2. Emt (“1” rotates through

Alarm Input 1. Fault occurs (alarm horn sounds)

4. Acknowledge the alarm

1. Shift 2. Next

Function Selector Function Selector

(The alarm drop goes steady on)

Switch Group AIa77il.

to be displayed)

Function Selector 3. Shift Function Selector 4. Exit (Selects the Mode Select state) (“1” rotates through the display) $TYP$

I

(Selects the Alarm edged alarm drop ing) 6. Shift 7. Next

Function Selector Mode: first unacknowlno. is displayed flashFunction Selector Function Selector

(Acknowledges the alarm: the drop no. changes to steady on)

Function Selector

(If acknowledged, the latest alarm drop no. is displayed steady on)

Press Switch 1. Silence

(Selects controller

Function Selector Function Selector

(If unacknowledged, the first new alarm drop no. is displayed flashing)

the display)

(The alarm horn silences) Section Selector 2. R,S, or T

light comes on)

1. Type 1 (Alarm)

Function Selector Function Selector

The following is a typical sequence for silencing, acknowledging and resetting the alarms using the Auxiliary Display group and the Alarm group switches. It is assumed that the communicator is not f?unctioning during this typical sequence.

(“1” rotates through the display) 3. Select Alarm mode

Switch Group

Selection

Switch Group Section Selector

1. Shift 2. Exat

GEK-83885

Manual

2. ~~otrea~ms

8. Reset

Alarm

(All acknowledged deleted)

and cleared alarms are

(clears)

(Re eat steps 2 through 8 for each CR > , , and c ?p> controller)

4-3

GEK-83885

Mark IV SPEEDTRONIC”

-

4-4

Notes -

Gas Turbine Control Operator’s Manual

GE Drive Systems Genefalflectric Company 1501RoanokeBoulevard Salem,Virginia 24153 (703)387-7000

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