GE OPTIMA MR360, Service Training

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Function:
1. Cabinet monitor will trip the E-Off contactor in the PDU when
a) Leak Sensor 2 detects water leakage or are open
b) T
emperature of system cabinet is over 45 degree centigrade
c) 4KW LCS or 8KW LCS/MCS stop working
2. Cabinet monitor only sends the error message to host through CAN link when
a) Leak Sensor 3 detects water leakage or are open
b) T
emperature of system cabinet is over 40 and less 45 degree centigrade
c) Water level is low in any one of LCS or MCS
3. Cabinet monitor will trip the Night Mode contactor in the PDU when
The system haven ’ t scanned for one hour.
The Nigh Mode control signal is from IRF I/O board J23 to SCIF J101, then to SCIF J105, then to J10
in cabinet monitor.
4. Cabinet monitor will energize the Night Mode contactor in the PDU when
The system is running TPS reset or begins to scan.
5. Provide Is24V DC power to whole CAN link.
Pump flow sensor and Tank level sensor are all Normally Closed switch, which means:
1. When LCS or MCS stop working, the pump flow sensor are close. And when they works normally,
the sensors are open.
2. When Tank level is low, the tank level sensor are close. And when the level is normal, the sensors
are open.
You can use DVM to check the resistance between the two sensor cables.