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34008030EN/AA - Page 28
5. Troubleshooting
5.1 Troubleshooting LEDS (21) and (22)
5.2 Troubleshooting not requiring MGE UPS SYSTEMS after-sales support
If LED (21) is ON:
the equipments are protected by the UPS
but the operation is downgraded.
If LED (22) is ON:
the equipments are no longer protected
by the UPS.
Press the escape button (24) to stop the
audible alarm.
Note :
In case of
"MULTIPLE FAULT", press the
"Enter" button (27) and the scroll button (25)
to get access to further details.
In case of
"LCM WARNING", refer to LCM
section (see section 6).
Press the
"Enter" button (27) to display the details below :
Displayed details Signification Correction
NO BATTERY The battery is incorrectly connected Check battery connections
I/O BAD CONNECTION AC source is not connected to the correct
terminals
Check AC wiring
NO POWER MODULE The power sub-module is not inserted Check power sub-module connections (see
section 7.1)
NO BATTERY MODULE The battery sub-module is incorrectly
connected
Check battery connections (see section 7.2)
INV THERM OVERLOAD The UPS shuts down automatically because
of a major overload.
Check the power drawn by the connected
devices and disconnect any non-priority
devices.
INVERT LIMITATION Short circuit conditions on output devices Check the installation at the UPS output
(wiring, fault equipment)
2120
22
ESC
25
LOAD PROTECTED
x.xkVA / xxx% LOADED
ENVIRONMENT FAULT
SINGLE UPS
27
24
ESC
LOAD PROTECTED
x.xkVA / xxx% LOADED
x x x x x x x x FAULT
SINGLE UPS