A533-23-880 Issue C
Page 8 © Edwards Limited 2009. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
INTRODUCTION
Electrics and Control Loom (17): This is used to provide power, measurement signals and control signals to the Control
Module.
FDP electrical supply cable (18): This is used to connect the electrical supply from the Electrics Box to the FDP pump.
FDP thermistor cable (19): This is used to connect the output of the thermistor in the FDP pump to the Electrics Box.
HMB thermistor cable (21): On an iF1800 system, this is used to connect the output of the thermistor in the HMB
pump to the Electrics Box.
HMB electrical supply cable (22): On an iF1800 system, this is used to connect the electrical supply from the Electrics
Box to the HMB pump.
1.9.3 Control module
This Module communicates with the Gas Module, the Pump Display Terminal and the optional Interface Module
accessories. The following sensors are connected to the Control Module:
FDP pump-body temperature sensor
HMB pump temperature sensor
Exhaust temperature sensor (if fitted)
Water flow-switch.
FDP oil level monitor
The Module has a microprocessor which:
Monitors the status of the system.
Sends warning and alarm messages (refer to Section 1.11.2) to other Modules connected to the iF system.
Monitors the control inputs (from the Pump Display Terminal or the Interface Module accessory) and switches
the pumps on and off as requested.
Shuts down the iF system if a sensor reading is outside the specified alarm range: refer to Section 1.11.2.
The Module also communicates with and controls the operation of the Gas Module.
Internal clocks and counters in the module measure the operating time of the iF system and keep count of the number
of iF system switch-on / switch-off and process cycles.
1.9.4 Gas Module
The Gas Module communicates with and is controlled by the Control Module. The operation of the nitrogen purge
supply solenoid-valves in the Gas Module is described in Section 1.5.
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