GE OPTIMA MR360, Service Training

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The 25KVA is a new design part. The power capacity is less than former products
because the gradient power supply uses the super capacitors to store power energy in
SV system.
Control signals to Main Breaker:
1. Power Off Button Control: This signal is from Power Off button. Main breaker will trip
if press this button.
2. Transformer Temperature Sensor Control: This signal is from 3 phase transformer in
PDU. Main breaker will trip if the temperature of the transformer is over the limit.
3. Main Breaker Trip Control: Refer to 2.c in this page.
Control signals to Control Board:
1. Input control signal:
a. EMO Reset Button Control: This signal is from EMO Reset Button. E-off contactor
and Night Mode contactor will be energized after pressed this button.
b. E-Stop Control: This signal is from outside E-Stop circuit (Refer to the next page). E-
off contactor and Night Mode contactor will lost power when pressed any E-Stop
button.
c. Cabinet Monitor Control: This signal is from cabinet monitor. It contains two kinds
of signal. One is for controlling E-Off contactor, the other is for controlling Night Mode
contactor. For detailed information. Refer to Cabinet Monitor section in this
documentation.