zxc ® 07-Мар-2014 10:57

DGS-8800e Sulzer RTA Engines Instruction Manual


Year: 2014
Language: english
Author: Kongsberg Norcontrol
Genre: Instruction Manual
Publisher: Kongsberg Norcontrol
Format: DOC
Quality: eBook
Number of pages: 100
Description: The Digital Governor System (DGS-8800e) is a complete package which fulfills all tasks for governing the speed of low-speed, long-stroke diesel engine of the Sulzer RTA type manufactured by Wärtsila NSD and their licencees. The speed setting may be from three different systems, usually the remote control system (AutoChief 4 or AutoChief 7), local control panel, and control room back-up panel (optional).
The system may be fitted to both fixed pitch and controllable pitch propeller systems (FPP and CPP systems). The system responds to slow-down and shut-down signals from external safety systems. Fuel-saving features, such as load limiting functions, are included.
The DGS 8800e performs computerized handling of all measurements and control signals. It includes panel push-button flexibility to select, adjust, and test the system performance. Movement of the fuel rack is done by an electric actuator, with a 3 phase brushless servomotor as the power medium.
The main purpose of the DGS 8800e system is to control the position of the engine fuel servo, in order to maintain an engine speed equal to a reference setting. The system is composed of two separate and self-contained subsystems, the speed Regulating Function, and the fuel Actuator Function.
The speed pick-up sensors are of an inductive type, mounted towards engine gearwheel inside the main engine. They are completely duplicated for increased system reliability.
Engine charge air pressure is measured to be able to limit the fuel injection according to charge air pressure value.
For CCP systems, the pitch value is input to compensate for loading conditions.
The speed reference input to the system may be one of three, selectable either from the remote control system (from bridge or control room), the local control panel, or the control room back-up panel.
The DSU (Digital Servo Unit) which is supplied from the AC mains, supplies the DGS 8800e system with 24V DC.
The ELACT (Electric Actuator) is supplied by a 3 phase AC main power supply through a TRAFO 001 (transformer) and the DSU with power and servo amplifier. The Actuator Feedback Transducer is a high resolution absolute encoder with contactless displacement to improve system reliability.

TABLE OF CONTENTS

TABLE OF CONTENTS
Section Page
1. SYSTEM DESCRIPTION 1
1.1 INTRODUCTION 1
1.1.1 Regulator functions 2
1.1.2 Actuator Function 2
1.1.3 System configuration 3
1.2 SYSTEM UNITS 4
1.2.1 Digital Governor Unit, DGU 4
1.2.2 Digital Servo Unit (DSU) 5
1.2.3 TRAFO 001 6
1.2.4 Electric actuator, ELACT 001 7
1.2.5 Equipment Location 8
1.3 MAIN SPECIFICATION 8
1.3.1 Input and output data-channels 8
1.3.2 Logic input signals 8
1.3.3 Power Positioning Characteristics 9
1.4 MODE SELECTIONS 10
1.4.1 NORMAL mode 10
1.4.2 IDLE mode 10
1.4.3 CONSTANT FUEL mode 10
1.4.4 ROUGH SEA mode 11
1.4.5 SETPOINT mode 11
1.4.6 TEST mode 11
1.4.7 CALIBRATION mode 11
1.4.8 SELFTEST mode 12
1.5 PROGRAMMABLE FUNCTIONS 13
1.6 PROGRAMMING CHARACTERISTICS 14
1.7 REGULATOR MAIN FUNCTIONS 15
1.7.1 RPM Controller Function 16
1.7.2 RPM Command Function 17
1.7.3 RPM Measurement Function 18
1.7.4 Regulator Gain Function 19
1.7.5 Fuel Limiting Function 20
1.8 ACTUATOR MAIN FUNCTIONS 21
1.8.1 Fuel Actuating Function 21
1.8.2 Servo Control function 21
2. SYSTEM OPERATION 22
2.1 REGULATOR OPERATOR PANEL 22
2.1.1 Panel Layout 22
2.1.2 Regulator Indicator Lamps 23
2.1.3 Regulator Mode Lamps 23
2.1.4 Regulator STATUS lamps 24
2.1.5 Regulator ALARM/WARNING lamps 24
2.2 PARAMETER AND DATA AREAS 25
2.2.1 Parameter Up/Down 25
2.2.2 Data value Up/Down 26
2.2.3 Change Lock 26
2.2.4 Service code 26
2.2.5 Save 26
2.3 REGULATOR OPERATING BUTTONS 26
2.3.1 Constant Fuel Mode Button 27
2.3.2 Rough Sea Button 27
2.3.3 Fuel Setpoint Button 28
2.3.4 Regulator Test Buttons 28
2.4 ACTUATOR OPERATING PANEL 30
2.4.1 Actuator Indicator Lamps 30
2.4.2 Actuator MODE lamps 30
2.4.3 Actuator STATUS lamps 30
2.4.4 Actuator ALARM lamps 31
2.4.5 Actuator Parameter and Data Areas 32
2.4.6 Actuator Operating Buttons 33
2.4.7 Actuator Test Buttons 34
2.5 PROCEDURES 35
2.5.1 Power On 35
2.5.2 Power Off 35
2.5.3 Start Command 35
2.5.4 Transfer Command between remote control and back-up control 36
2.5.5 Stop Command 36
2.5.6 Fuel Setpoint Emergency Control 36
3. TROUBLE SHOOTING 37
3.1 ALARMS / WARNINGS 37
3.2 REGULATOR ALARMS 37
3.2.1 System in Test 37
3.2.2 Low Voltage Alarm 38
3.2.3 RPM Detector Failure 39
3.2.4 In-Data Error on Regulator 40
3.2.5 Out Data Error 40
3.3 ACTUATOR ALARMS 41
3.3.1 Feedback Failure 41
3.3.2 Indata Error on Actuator 41
3.3.3 Servo Amplifier Failure 42
3.3.4 System in Test on Actuator 42
3.4 SPECIAL MESSAGES 43
3.4.1 " -- e r r o r " 43
3.4.2 " -- l o a d " 44
3.4.3 " 88 888888 " 44
3.4.4 Freeze 44
3.5 ACTUATOR UNIT 44
3.5.1 Unstable servo 44
4. ADJUSTMENTS 45
4.1 START-UP 45
4.1.1 Power-Up 45
4.1.2 Adjust BASIC parameters. 46
4.1.3 Actuator zero adjustment 47
4.1.4 Fuel Output Signals (Option) 48
4.1.5 RPM detectors 48
4.2 REGULATOR PARAMETER DESCRIPTION. 49
4.2.1 Regulator parameter adjustments 49
4.2.2 Regulator input signal adjustment 49
4.2.3 Digital signals 49
4.2.4 Analog signals 49
4.2.5 OpCode 0 Parameters. 50
4.2.6 OpCode 1 Parameters. 51
4.2.7 Engine Data. 51
4.2.8 RPM Cmd Limiting 54
4.2.9 Measured RPM Filters 57
4.2.10 Speed Controller Response 58
4.2.11 Fuel Setpoint 60
4.2.12 Fuel Limiters 61
4.2.13 Actuator type setting. 62
4.2.14 Dead band mode or constant fuel mode 64
4.2.15 Various parameters. (Stop signal, Cancel limiters,,,) 66
4.2.16 Alarm Adjustments 67
4.2.17 Dual Rpm Command Instruments. Digital fuel limiter output signal. 68
4.2.18 Non Linear Compensation Due To Fuel Pump Position 69
4.2.19 Shaft Generator Function. 69
4.2.20 Non Linear Compensation Due To Low RPM 70
4.2.21 QPT 71
4.2.22 Test 71
4.3 ACTUATOR PARAMETER DESCRIPTION 73
4.3.1 Mode selection. 73
4.3.2 Readable information. 73
4.3.3 Alarm info, info reset and feedback failure block reset. 73
4.3.4 System parameter. 74
4.3.5 Actuator Control Parameters. 74
4.3.6 Servo Position Feedback Fail Test. 75
4.3.7 Idle mode, manual control. 76
4.3.8 Actuator operating range. 77
4.3.9 Alarm Relay. 77
4.3.10 Digital input signals. 78
4.3.11 Block when low voltage. 78
4.3.12 Actuator rotation direction. 78
4.3.13 Fuel indication output signal. 79
4.3.14 Test parameters. 79
4.3.15 Readable parameters. 79
5. MAINTENANCE 81
5.1 VISUAL INSPECTIONS 81
6. APPENDIX 83
6.1 APPENDIX A, INPUT AND OUTPUT SIGNAL LIST FOR DGS-8800E 83
6.2 APPENDIX B *** DIP-SWITCHES 84
6.3 APPENDIX C *** DIGITAL INPUTS ON REGULATOR 85
6.4 APPENDIX D *** ANALOG INPUTS ON REGULATOR 86
6.5 APPENDIX E *** DIGITAL INPUTS ON ACTUATOR 87
6.6 APPENDIX F *** HEXADECIMAL COUNTING 88
6.7 APPENDIX G *** JUMPERS ON NN-791.12 I/O PROCESSOR BOARD. 89
6.8 APPENDIX H *** LAYOUT FOR NN-791.12 I/O PROCESSOR BOARD. 90
6.9 APPENDIX I *** JUMPERS ON NA-1105 91
6.10 APPENDIX J *** BACK-WIRING 92
7. RELATED DOCUMENTS. 92
7.1 SBS SERVO AMPLIFIER MANUAL (PARVEX). 92
7.2 DGS 8800E PARAMETER LIST. (KNCA, AA-0089.DOC) 92

TABLE OF FIGURES

TABLE OF FIGURES
Section Page
FIGURE 1.1 SYSTEM CONFIGURATION. 3
FIGURE 1.2 DIGITAL GOVERNOR UNIT DGU 8800E 4
FIGURE 1.3 DSU, SERVO AMPLIFIER AND POWER UNIT'S 5
FIGURE 1.5 TRANSFORMER 6
FIGURE 1.6 ELECTRIC ACTUATOR - ELACT 001 7
FIGURE 1.7 DGU 8800E BLOCK DIAGRAM. 15
FIGURE 1.8 GOVERNOR FUNCTIONS. 16
FIGURE 1.9 RPM COMMAND FUNCTION. 17
FIGURE 1.10 RPM MEASURING FUNCTION. 18
FIGURE 1.11 REGULATING GAIN FUNCTION. 19
FIGURE 1.12 FUEL LIMITING, NON LINEAR COMPENSATION AND OUTPUT SCALING FUNCTION 20
FIGURE 1.13 SERVO CONTROL FUNCTION 21
FIGURE 2.1 OPERATOR PANEL 22
FIGURE 2.2 INDICATOR LAMPS. 23
FIGURE 2.3 REGULATOR PARAMETER AND DATA AREAS. 25
FIGURE 2.4 REGULATOR OPERATION BUTTONS. 28
FIGURE 2.5 REGULATOR TEST BUTTONS. 29
FIGURE 2.6 ACTUATOR INDICATION LAMPS. 30
FIGURE 2.7 ACTUATOR PARAMETER AND DATA AREAS. 32
FIGURE 2.8 ACTUATOR OPERATION BUTTONS. 33
FIGURE 2.9 ACTUATOR TEST BUTTONS. 34
FIGURE 4.1 ROTATION OF ACTUATOR. (CW = CLOCK WISE, CCW = COUNTER CLOCK WISE). 47
FIGURE 4.2 ACTUATOR ARM. 52
FIGURE 4.3 CRITICAL SPEED. BLOCKED AREAS. 56
FIGURE 4.5 CONSTANT FUEL MODE. 65
FIGURE 4.6 NON LINEAR COMPENSATION DUE TO LOW SPEED. 70
FIGURE 4.7 ACTUATOR POSITION TIMING. 72
FIGURE 4.8 ACTUATOR GAIN. 74
FIGURE 4.9 TIMEOUT FOR TOO SLOW. 76
FIGURE 4.10 ACTUATOR POSITION, 79
FIGURE 6.1 DIPSWITCHES. 84
FIGURE 6.2 DIGITAL INPUTS ON REGULATOR. 85
FIGURE 6.3 ANALOG INPUTS ON REGULATOR. 86
FIGURE 6.4 PROCESSOR BOARD LAYOUT. 90
FIGURE 6.5 NA-1105, ACYNCRON BUFFER LAYOUT. 91

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