Maintenance, 1 troubleshooting – MGE UPS Systems Comet EX 11 RT 3:1 User Manual

Page 31

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4. Maintenance

Indication

Leds 15 * and 16 are on

and audible alarm is on.

The alphanumeric display shows:

xxx FAULT

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Led 15 is on* and audible alarm is on.

the alphanumeric display shows:

BATTERY FAULT

Led 15 is on,

the alphanumeric display shows:

SHUTDOWN

STATIC SW FAILED

Audible alarm is on, and the alphanumeric

display shows:

END OF WARRANTY

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Audible alarm is on, and the alphanumeric

display shows:

BATTERY CHECK

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Signification

Internal fault

and transfer of load

on bypass AC source.

Battery fault during the battery test.

Static switch failure.

UPS out of warranty.

Batteries may have exceeded there rated life

period. Battery capacity is severely reduced.

Correction

Follow the UPS replacement procedure (see

section 4.3).

Call the after sales support department.

Follow the battery replacement procedure

(see section 4.3).

Call the after sales support department.

Follow the UPS replacement procedure (see

section 4.3).

Call the after sales support department.

To extend warranty period or for UPS

maintenance, call the local after sales

support: www.mgeups.com, "Contact Us"

section**.

Call the local after sales support:

www.mgeups.com, "Contact Us" section**.

(*): if bypass AC source is available.
(**): to reset this alarm permanently, press both function buttons 19 and 20 for more than 3 seconds and access the
LCM Setup menu.

Troubleshooting requiring MGE UPS SYSTEMS after-sales support:

4.1 Troubleshooting

If any of LEDs 15 or 16 is on, there is an operating anomaly or an alarm.
Use "scroll up" or "scroll down" function button to reset the audible alarm.

Troubleshooting not requiring MGE UPS SYSTEMS after-sales support:

Indication

Led 15 is on,

the alphanumeric display shows:

BAD CONNECTION

REWIRE AC NORMAL

Led 15 is on,

the alphanumeric display shows:

LOAD LEVEL

Xx kW / XX KVA

Led 15 is on*,

the alphanumeric display shows:

THERMAL OVERLOAD

1XX%

Led 16 is on,

the alphanumeric display shows:

CURRENT OVERLOAD

Audible alarm is on,

the alphanumeric display shows:

I/O BOX REMOVED

Signification

AC source is not connected

to the correct terminals.

Load supplied by bypass AC source.

UPS overload.

Short circuit conditions on output devices.

Junction of Input/Output box

not correctly screwed.

Correction

Rewire correctly the normal AC source.

Push the ON button for more than 3

seconds.

Check the power drawn by the equipment

and disconnect any non-priority devices.

Check if any device is shorted or failed.

Check if the junction Input/Output box is

correctly screwed (rear panel).

(*) : if bypass AC source available.

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