GE 750 UL S2 User Manual page 30

Code
RECTIFIER TRANSFORMER
4106
OVERTEMPERATURE
RECTIFIER UTILITY OUT
4110
OF TOLERANCE
4115 LOW BATTERY VOLTAGE
4116 HIGH BATTERY VOLTAGE
4117
BATTERY EARTH FAULT
4118 BATTERY FAULT
4121 HIGH DC RIPPLE
TURN ON RECT.
4130
OR SHUTDOWN UPS
4140 RECTIFIER CONTROL FAILURE
4165 INPUT FILTER FAILURE
4301 INVERTER FUSES FAILURE
4304
K7 CLOSING FAILURE
4305 K7 OPENING FAILURE
INVERTER TRANSFORMER
4307
OVERTEMPERATURE
4308 DC FUSES FAILURE
Modifications reserved
OPM_SGS_USM_M75_M75_2US_V010.doc
Alarms
The temperature sensor inside the input transformer
winding indicates over temperature.
Only the alarm is given.
The Rectifier, when in Off state, cannot start as long as
this condition persists.
Rectifier Input Utility is out of tolerance (voltage,
frequency or phase).
The Battery has been discharged and reached "stop
operation" time-out (default 3 minutes), and the Inverter
will be shut down.
It will restart automatically only when the Battery has
recharged enough for a minimum runtime.
Dangerous high DC Voltage caused Inverter shutdown.
Inverter restarts automatically after Battery returns to
floating voltage.
A leakage current to earth has been detected on the DC
circuit.
During battery test the voltage falls under the critical
level (depending setting parameters).
Battery test is stopped.
There is a high voltage ripple on the DC Bus.
Rectifier might be working in current limiting mode.
Decrease the load to stabilize DC Bus.
Rectifier and Inverter are OFF.
The DC Power Supply is discharging the Battery.
Rectifier must be restarted or Battery must be
disconnected in order to avoid damage.
Rectifier Voltage hasn't reached the set value (probably
fault on regulation loop).
LED Rectifier on control panel is blinking.
An unbalancing on the three-phase current absorbed
by the input harmonic filters 5th or 11th is detected
causing the opening of the contactors C50 or C110.
The reset alarm can be done only from Service Center.
Inverter Output Fuses blown (F5, F6 and F7).
Inverter can be started manually after replacement of
the fuses.
K7 not closed despite a closing command being issued.
Signaled by auxiliary contact.
Load will be supplied by Utility.
K7 not open despite an opening command being
issued.
Signaled by auxiliary contact.
Load will be supplied by Utility.
The temperature sensor of the Inverter Transformer
indicates over temperature.
Elapsed "stop operation" time, Inverter shutdown.
With Utility OK, Load is transferred on Utility.
Blown input DC fuse(s) F1 of the Inverter.
Inverter cannot be started as long as present.
Meaning
User Manual SG Series 750 UL S2 & SG Series 750 T12 UL S2
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