GE 750 UL S2 User Manual page 31

Code
4309 DRIVER FAILURE
4312 INV. VOLTAGE OUT OF TOLERANCE
4320 ISMAX DETECTION
4321
HIGH CURRENT SHARING
4340 INVERTER CONTROL FAILURE
4400 BYPASS FUSE FAILURE
4404
K6 CLOSING FAILURE
4405 K6 OPENING FAILURE
4406
SSM FAILURE
4407
SSM OVERTEMPERATURE
BYPASS UTILITY OUT
4410
OF TOLERANCE
4520
NO INVERTER POWER
4522 FAN FAILURE
4530 LOAD LOCKED ON UTILITY
LOAD ON UTILITY BY ERROR
4531
DETECTOR
4563 EMERGENCY OFF ACTIVATED
Modifications reserved
OPM_SGS_USM_M75_M75_2US_V010.doc
Alarms
An abnormal condition has been detected on one or
more power modules of the Inverter (temperature or
over current).
Inverter shutdown and cannot be started as long as the
alarm is present.
Inverter Output Voltage is out of the tolerances (± 10%).
Inverter is switched OFF.
Detection of Inverter Bridge (Is) current limit causing the
Inverter OFF and possible automatic restart.
After 3 times the Inverter switches-Off, and it can be
restarted manually.
A high exchange current value is detected between the
UPS of the parallel system.
The "Slave" oscillator is not in synchronized with the
Master; thus causing the shutdown of it's Inverter.
If after a restart the condition remains, the LED inside
the Inverter symbol on the panel will not light up,
indicating that this Inverter cannot supply the Load
anymore.
Either one or all the fuses in bypass line have blown.
K6 open despite a closing command being issued.
Signaled by auxiliary contact.
The Load cannot be supplied by Automatic Bypass.
K6 closed despite an opening command being issued.
Signaled by auxiliary contact.
A faulty current has been detected in the static-switch
causing the opening of the contactor K6 for 10 seconds.
After 3 times K6 remains definitively open.
The alarm reset can be done only from Service Center.
Temperature sensor indicates an over temperature on
the Static-Switch.
The Utility Bypass Voltage is out of the tolerances (±
10%).
K6 opens, synchronization with Utility is inhibited and
transfer to Utility is blocked.
The Load supplied by Utility exceeds the Inverter power.
The Load remains supplied by Utility until the alarm
stays ON.
A malfunction on the UPS ventilation system was
detected.
No change for UPS operation.
Call immediately Service Center for intervention.
Load is locked on Utility because 3 transfers on Utility
have been detected in a short time (default 30 seconds).
The transfer will be free after a time defined in
parameter (default 30 seconds).
Load is transferred to Utility because the error detector
detected a disturbance on the output voltage.
Alarm after detection of an EPO from an external safety
device connected on Customer Interface Board.
Consequently K4, K6, K7 open, Rectifier, Inverter and
SSM are switched Off.
Meaning
User Manual SG Series 750 UL S2 & SG Series 750 T12 UL S2
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