Monitoring, Control And Regulation Equipment; Gas Engine Phase 3 System - Overview - MTU 20V4000L33F Operating Instructions Manual

2.6 Monitoring, Control and Regulation Equipment

2.6.1 Gas engine phase 3 system – Overview
General overview
1 Plant system
2 Engine system
3 Plant
4 Engine Control Unit
Governing/control/monitoring
Engine Control Unit ECU-9
• Controls engine starting, stopping and emergency stop
• Monitors engine operating parameters
• Controls throttles and sets gas mixture for requested speed/power
• Monitors first gas solenoid in gas train to engine
Engine Monitoring Unit EMU 8
• Monitors second gas solenoid in gas train to engine
Compressor bypass (F-series)
• Controls throttle reserve, blocks compressor pumps
Ignition system IC922
• Adjusts ignition timing for cylinders
32 | Product Summary | MS150108/00E 2013-06
5 Engine Monitoring Unit
6 Humidity sensor
7 Throttles
8 Gas dosing unit
9 Knock module
10 Ignition
11 Compressor bypass
12 NOx sensor (optional)