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March 2021
Page 32 of 143
59812-K007 Rev 17
Business Confidential
2.8
SYSTEM CHECKS PRIOR TO SWITCHING ON
2.8.1
Ensure that the 24v DC input power supply cable is connected correctly at each Control Unit (if
more than one installed).
2.8.2
Check the cable run of all Modbus Communication cables between all installed Control Units to
each other and to the Remote Display Unit (if installed) or AMS to ensure that it is not damaged.
2.8.3
Ensure that the Modbus Communication (if required) is terminated correctly at each Control Unit
(if more than one installed and/or Remote Display Unit installed or connected to AMS).
2.8.3.1
If more than one Control Unit is installed, please ensure the End of Line (EOL) jumpers are
removed from all Control Units (refer Figure 8) except for the highest Modbus addressed
Control Unit.
2.8.3.2
Make sure that the Modbus addresses are set as required, refer section 2.10 for procedure.
2.8.4
Ensure that the Backup Alarm, Pre-Alarm, Fault and Slowdown/Shutdown relays are connected
correctly at each Control Unit (if more than one installed).
2.8.5
Ensure the detectors are connected to each Control Unit in the correct number sequence.
2.8.6
Ensure all unused Glands are removed from all Control Units and replaced by Blanking Plugs.
2.8.7
Ensure that the power supply and Modbus Communication cables are connected correctly at the
Remote Display Unit (if installed).
2.8.8
Ensure that the input voltage at the Control Unit(s) and the Remote Display Unit (If installed) is
a clean 24 V dc (+30%, - 25%)
2.8.9
When all the above have been checked and are satisfactory the system is ready to switch on.
2.8.10
Allow the engine to reach its' normal operating temperature before continuing to System
Configuration and Commissioning.
Oil Mist alarm levels should be set to a level above the actual normal operating level displayed,