MGE UPS Systems Pulsar EX 1500 User Manual

Page of 28
 
51031604EN/AA
 - Page 21
Troubleshooting requiring MGE UPS SYSTEMS after-sales support
4. Maintenance
4.1 Troubleshooting
Indication
LED  13  flashes and the
buzzer sounds
continuously.
Signification
UPS electronics have detected a UPS fault.
Depending on the UPS personalisation parameters
(see section 3.4), there are two possibilities:
 the equipment connected to the UPS continues to be
supplied, but directly from the AC-power source (via
the automatic bypass (LED  20  ON);
 the connected equipment is no longer supplied.
               The equipment connected to the UPS is no
longer protected.
Correction
Call the after-sales support
department.
Indication
LED  12  flashes and the
buzzer beeps.
LED  14  flashes.
Signification
UPS overload. Overload is too long or too high.
The buzzer sounds continuously.
 If AC power is present and within tolerances, the UPS
goes to bypass mode (supply directly by the AC-power
source). LED  20  flashes.
 If AC power is not present or not within tolerances,
the connected applications are no longer supplied.
A battery fault was detected during the automatic
battery test.
Correction
Check the power drawn by the
equipment and disconnect any non-
priority devices.
 Connect that the battery connector
is fully pushed in.
 Replace battery module (see the
Maintenance section).
If any of LEDs  12 ,  13  or  14  flash, there is a operating anomaly or an alarm.
If a LED flashes, the bargraph data is no longer displayed.
Troubleshooting not requiring MGE UPS SYSTEMS after-sales support