GE LP 33 Series Operating Manual page 60

Code Alarm
LOAD ON MAINS
4531
BY ERROR DETECTOR
4563
EMERGENCY OFF ACTIVATED
4570 OVERLOAD
4571 OVERLOAD: LOAD ON MAINS
INVERTER AND MAINS
4581
NOT SYNCHRONIZED
4697
BATTERY OVERTEMPERATURE
4698 BATTERY POWER INSUFFICIENT
4700
DC LOW
4900 LOAD LOCKED ON INVERTER
4955 OVERTEMPERATURE
LOAD OFF DUE TO
4998
EXTENDED OVERLOAD
LOAD OFF DUE
4999
TO LOW BATT. OR TEMP.
Modifications reserved
OPM_LPS_33E_60K_M12_2GB_V010.doc
Load is transferred to mains because the error detector
detected a disturbance on the output voltage.
Alarm after detection of an Emergency Off from an external
safety device connected on Customer Interface.
Consequently K4, K6 and K7 open and shut down inverter,
booster and rectifier.
The UPS-System is in an overload condition >125% on
inverter, or >150% on mains.
A sequence of "stop operation" starts.
Time out depending on load quantity.
With mains bypass supply available and load >115%, the
load is transferred on mains.
Load will be transferred again automatically on inverter
when load will be <100%.
The voltages of mains and inverter are not synchronised,
which causes the opening of K6.
The battery temperature exceeds the value inserted in
parameter.
Disabled with parameter (service only).
In case of utility failure, with the actual load, the autonomy
time would result below "stop operation" time (default 3
minutes).
Battery voltage is at the lowest limit.
Shutdown of inverter until the battery voltage reaches the
value in respective parameter.
The load is locked on Inverter following 3 load transfers
within 30 seconds.
After time out of the value in respective parameter (default
30 seconds), bypass will be free.
An overtemperature condition has been detected on
inverter.
Elapsed "stop operation" time, inverter shutdown.
With mains available, load is transferred on mains.
Load Off after time-out of "stop operation" for overload on
inverter or bypass (time depending on the % of overload).
Load Off after time-out of "stop operation" with missing
mains due to battery low voltage or overtemperature
condition.
Meaning
Operating Manual LP 33 Series 60-80-100-120 kVA / S2
Page 60/103