MGE UPS Systems Comet TM 5 - 30 kVA user manual Start-up, Preliminary checks, Powering up to Comet

start-up

preliminary checks

■check the settings of the protection devices:

■input power switch 1 in off (O) position,

■battery circuit breaker 4 in off (O) position,

■"manual bypass" 8 switch set to "NORMAL" position (see figure 18);

■check that nothing can block the ventilation system (air entry through the bottom and, where applicable, through the side vents);

■check that there is a minimum 100mm clearance at the back for ventilation;

■check that Comet no longer rests on its 4 wheels (lifting jacks in place);

■check that the load-circuit circuit breakers (where applicable) are in off (O) position.

"manual maintenance bypass" switch

BY-PASS

NORMAL

TEST 2

Fig. 18

TEST 1

powering up to Comet

Caution:

As soon as AC input power is supplied to Comet (upstream circuit breaker on the low voltage switchboard in "on" position), the load is supplied via the "static bypass" 3 . No indications are given on the control panel.

bip...bip...

! !

+ –

I O

17 21 22

■put first the input power switch 1 and then the battery circuit breaker 4 in "on" position:

■the buzzer 17 sounds,

■the green "load protected" light 21 goes on,

■ the rectifier 2	and the charger 6 start up,
■ the inverter	7 automatically starts up, except if the system is in "manual

start-up" mode (optional). In this case, press the green "inverter on" button 22 .

Merlin Gerin by MGE UPS SYSTEMS Comet installation and user manual: E-6761200XT/FA 4.1