Maintenance; Troubleshooting - MGE UPS Systems PULSAR M 3000 RT 3U XL Installation And User Manual

E E N N G G L L I I S S H H
5.1

Troubleshooting

If LED (21) or (22) is ON, a fault or an alarm has occurred. Use the escape button (24) to stop the audio alarm.
Indication
The UPS does not start, the LCD
indicates: COLD START NOK
1
CHECK AC WIRING
LED (22) is ON, the SWF LED
(11) at the rear of the UPS is ON.
2
The LCD indicates: SITE WIR.
FAULT CHECK AC WIRING
LED (22) is ON, the LCD
indicates: NO BATTERY CHECK
3
CONNECTION
LED (22) is ON, the LCD
indicates: BATTERY FAULT SERV
4
REQUIRED
LED (21) is ON, the LCD
indicates: OVERLOAD ALARM
5
REDUCE LOAD
LED (22) is ON, the LCD
indicates: LOAD UNPROTECTED
6
OUTPUT OVERLOAD
LED (22) is ON, the LCD
indicates: REDUCE LOAD
7
RESTART UPS
LED (22) is ON, the LCD
indicates: OVERLOAD FAULT
8
REDUCE LOAD
LED (22) is ON, the LCD
indicates: LOAD SHORT-CIRCU
9
CHECK WIRING
LED (22) is ON, the LCD
indicates: INTERNAL FAULT
SERV REQUIRED
10
The LCD indicates: REMOTE
POWER OFF RPO
11
86-86710-00 A01
Diagnostic
The AC input power is not connect-
ed or is connected to the UPS out-
put.
Phase inversion on AC input power.
The UPS does not start.
The battery is incorrectly connected. Check battery connections (see Section
A fault is detected on the battery.
The load level exceeds the
programmed overload level or UPS
capacity.
The UPS is overloaded. Devices
connected to the UPS are fed
directly by the electrical network via
the By-pass.
After repetitive overloads, the UPS
is locked in the By-pass position.
Devices connected to the UPS are
fed directly by the electrical network.
The UPS shut down automatically
because of overload at the UPS
output.
The UPS shut down automatically
because of a short-circuit at the UPS
output.
A UPS internal fault has occurred.
There are two possible situations:
◗ the load is still supplied, but
directly with AC power via the
bypass,
◗ the load is no longer supplied.
Switching of the Remote Power Off
(RPO) has led to the shut down of
the UPS.

Maintenance

Maintenance
Correction
◗ Check AC power availability.
◗ Check the UPS is correctly connected
to the AC input power.
Check polarity and grounding system.
5.2, Battery-module replacement).
Replace the battery (see Section 5.2,
Battery-module replacement). Call the
after-sales support department.
Reduce the load.
Check the power drawn by the connect-
ed devices and disconnect any non-pri-
ority devices.
Check the power drawn by the connect-
ed devices and disconnect any non-pri-
ority devices. Shut down and restart the
UPS to return to normal operation.
Check the power drawn by the connect-
ed devices and disconnect any non-pri-
ority devices.
Remove the load, and then restart the
UPS.
Call the after-sales support
department.
Return the contact in the normal posi-
tion, and press the ON/OFF button to
restart.
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