Modifications reserved
Page 59/103
OPM_LPS_33E_60K_M12_2GB_V010.doc
Operating Manual
LP 33 Series 60-80-100-120 kVA / S2
Code
Alarm
Meaning
4130
TURN ON RECT.
OR SHUTDOWN UPS
Rectifier and inverter are OFF.
The DC power supply is discharging the battery slowly.
Rectifier must be restarted or battery must be disconnected
in order to avoid damages.
4140
RECTIFIER CONTROL FAILURE
Rectifier voltage hasn’t reached the set value.
Probably fault on regulation loop.
The DC capacitors are not equally charged (more of 50 Vdc
of difference).
The rectifier is switched OFF.
4301
INVERTER FUSES FAILURE
Inverter output fuses blown.
Signalled by electronic detector.
Inverter can be started manually after replacement of
fuses.
4304
K7 CLOSING FAILURE
K7 not closed despite a closing command being done.
Signalled by auxiliary contact.
The load will be supplied by mains.
4305
K7 OPENING FAILURE
K7 not open despite an opening command being done.
Signalled by auxiliary contact.
The load will be supplied by mains.
4312
INV. VOLTAGE OUT
OF TOLERANCE
Inverter output voltage is out of the tolerances defined in
respective parameter (±10%).
Inverter is switched OFF.
4320
ISMAX DETECTION
Detection of inverter bridge (Is) current limitation cause
inverter OFF and automatic restart (message 320).
After 3 times inverter switches OFF for persistent Is max
detection in time.
Inverter switch OFF, and it can be restarted manually.
4340
INVERTER CONTROL FAILURE
The slave oscillator is not synchronised with the master,
thus causing the shutdown of it’s inverter.
4347
OSCILLATOR FAILURE
Auto calibration of the Inverters freerun frequency was not
possible.
The oscillator frequency of this unit is out of tolerance.
4402
RECTIFIER CANNOT BE
TURNED ON
The rectifier cannot be turned on because the DC link
voltage has not reached the requested value.
4404
K6 CLOSING FAILURE
K6 not closed despite a closing command being done.
Signalled by auxiliary contact.
The load cannot be supplied by electronic bypass.
4405
K6 OPENING FAILURE
K6 not open despite an opening command being done.
Signalled by auxiliary contact.
4410
BYPASS MAINS OUT
OF TOLERANCE
The mains bypass voltage is out of the tolerances (±10%).
K6 opens, synchronisation with mains is inhibited and
transfer to mains is blocked.
4520
NO INVERTER POWER
The load supplied by utility is over 100%.
The load remains blocked on utility as long as alarm
overload is active.
4530
LOAD LOCKED ON MAINS
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).