GE Digital Energy LP 33 Operating Manual page 45

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Code Alarm
BYPASS MAINS
4410
OUT OF TOLERANCE
NO INVERTER
4520
POWER
LOAD LOCKED
4530
ON MAINS
LOAD ON MAINS
4531
BY ERROR DETECTOR
EMERGENCY OFF
4563
ACTIVATED
4570 OVERLOAD
OVERLOAD:
4571
LOAD ON MAINS
INVERTER AND
4581
MAINS NOT SYNCH.
BATTERY
4697
OVERTEMPERATURE
BATTERY POWER
4698
INSUFFICIENT
4700 DC LOW
LOAD LOCKED
4900
ON INVERTER
4955 OVERTEMPERATURE
OPM_LPS_33E_10K_30K_4CN_V010.doc
The mains bypass voltage is out of the tolerances
(±10%).
K6 opens, synchronisation with mains is inhibited and
transfer to mains is blocked.
The load supplied by utility is over 100%.
The load remains blocked on utility as long as alarm
overload is active.
Load is locked on mains because 3 transfers on mains
have been detected in a short time (default 30 seconds).
Transfer will be free again after a time defined by
respective parameter (default 30 seconds).
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.
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Meaning
Operating Manual LP 33 / 10-20-30 kVA
GE