Code

Alarm

Meaning

 

 

During battery test the DC voltage falls under the critical

4118

BATTERY

level.

If the boost voltage has not been reached within 24 hours,

FAULT

 

then the charge voltage returns to floating voltage.

 

 

 

 

Battery test is stopped.

 

 

 

 

TURN ON RECT.

Rectifier and inverter are OFF.

4130

The DC power supply is discharging the battery slowly.

OR SHUTDOWN UPS

Rectifier must be restarted or battery must be disconnected

 

 

 

in order to avoid damages.

 

 

 

 

 

Rectifier voltage hasn’t reached the set value.

 

RECTIFIER

Probably fault on regulation loop.

4140

The DC capacitors are not equally charged (more of 50 VDC

CONTROL FAILURE

 

of difference).

 

 

 

 

The rectifier is switched OFF.

 

 

 

 

INVERTER

Inverter output fuses blown.

4301

Signaled by electronic detector.

FUSES FAILURE

 

Inverter can be started manually after replacement of fuses.

 

 

 

 

 

 

K7 CLOSING

K7 not closed despite a closing command being done.

4304

Signaled by auxiliary contact.

FAILURE

 

Load will be supplied by mains.

 

 

 

 

 

 

K7 OPENING

K7 not open despite an opening command being done.

4305

Signaled by auxiliary contact.

FAILURE

 

Load will be supplied by mains.

 

 

 

 

 

 

INV. VOLTAGE

Inverter output voltage is out of the tolerances defined in

4312

respective parameter (±10%).

OUT OF TOLERANCE

 

Inverter is switched OFF.

 

 

 

 

 

 

 

Detection of inverter bridge (Is) current limitation cause

 

ISMAX

inverter OFF and automatic restart (message 320).

4320

After 3 times inverter switches OFF for persistent Is max

DETECTION

 

detection in time.

 

 

 

 

Inverter switch OFF, and it can be restarted manually.

 

 

 

4340

INVERTER

The slave oscillator is not synchronized with the master, thus

CONTROL FAILURE

causing the shutdown of it’s inverter.

 

 

 

 

 

OSCILLATOR

Auto calibration of the Inverters free-run frequency was not

4347

possible.

FAILURE

 

The oscillator frequency of this unit is out of tolerance.

 

 

 

 

 

4402

RECTIFIER

The rectifier cannot be turned on because the DC link

CANNOT BE TURNED ON

voltage has not reached the requested value.

 

 

 

 

 

K6 CLOSING

K6 not closed despite a closing command being done.

4404

Signaled by auxiliary contact.

FAILURE

 

The load cannot be supplied by electronic bypass.

 

 

 

 

 

4405

K6 OPENING

K6 not open despite an opening command being done.

FAILURE

Signaled by auxiliary contact.

 

 

 

 

 

BYPASS MAINS

The mains bypass voltage is out of the tolerances (±10%).

4410

K6 opens, synchronization with mains is inhibited and

OUT OF TOLERANCE

 

transfer to mains is blocked.

 

 

 

 

 

Modifications reserved

Page 24/57

OPM_LPS_3UO_30K_40K_0US_V010.doc

Operating Manual LP 33 Series 30 & 40 kVA

Page 24
Image 24
GE LP 33 manual Code Alarm Meaning, 4118, 4130, 4140, 4301, 4304, 4305, 4312, 4320, 4340, 4347, 4402, 4404, 4405, 4410

LP 33 specifications

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