APC MGE 6739380EN/JC User Manual download pdf (Page 34)

Page 34 - 6739380EN/JC

Visual check

◗ clean the system regularly,

particularly the air inlet and outlet grills.

Check that the air circulates freely in

the cubicles. Use a vacuum cleaner if

necessary;

◗ check that nothing hinders the

ventilation at the top of the system;

◗ check that all the fans operate

correctly.

Functional check

inverter on, open input switch Q1.

The orange "battery" light on the control

panel should light. After two minutes on

battery power, close input switch Q1.

The rectifier/charger should

automatically restart and the orange

"battery" light on the control panel

should go off;

◗ in parallel systems, run these tests

on each UPS or converter.

◗ after-sales support technicians will

power down the system prior to any

maintenance operations.

Note:

In redundant, parallel UPS systems and

frequency converters, the check may

be carried out successively on each

UPS or converter without interrupting

the load. In other configurations and for

the Static Switch Cubicle, the load must

be supplied via the maintenance

bypass (see the "Alarm" section).

◗ check that lights J, K, M and N on the

hidden control panel are not on to avoid

an interruption in the supply of power to

the load due to incorrect transfer

conditions or a battery problem;

◗ press the "inverter off" button and

check that the buzzer and control panel

lights function correctly (see the "main

operating modes" section);

◗ press the "inverter on" button and

check again that the control panel lights

function correctly;

◗ run a transfer to battery test. With the

Autodiagnostics

Note the indications supplied on the

hidden control panel (lights A to

N 8 ).

See the "control panel" section.

In systems with one or several

alphanumeric displays, check the list of

alarms.

If there is a true malfunction, note the

indications and alarms and call the

after-sales support department.

Maintenance (cont.)

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