APC MGE 6739380EN/JC User Manual download pdf (Page 22)

Page 22 - 6739380EN/JC

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Q1 Q5N

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ON

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Start-up (cont.)

◗ close fuse switch Q1 in the Static

Switch Cubicle;

◗ close input switch Q1 on an UPS

line.

The line powers up;

◗◗ red "load not protected" light 2 on

the line control panel goes on,

◗◗ the RC automatically starts;

◗ close the line battery circuit breaker

QF1;

◗ close inverter output switch Q5N for

the line;

◗ press the "inverter on" button 6 on

the line control panel;

◗◗ green "load protected" light 5 blinks

for 3 seconds,

◗◗ the inverter starts and awaits the

start of the other inverters;

◗ proceed in the same manner for

each line;

◗◗ when they are all on or enough have

been started to supply the rated load

power, the output switch for each

running line closes and the load is

supplied with power;

◗◗ red "load not protected" light 2 goes

off,

◗◗ green "load protected" light 5

remains on, without blinking, on the

control panel of each line supplying the

load.

Parallel UPS systems with a

Static Switch Cubicle

Proceed in the following order:

◗ check that all lines supplying the load

are off or that the load is disconnected;

◗ close the upstream switches

supplying Mains 1 and 2 power (on the

LV switchboard);

◗ close fuse switch Q2 in the Static

Switch Cubicle (see figure 22);

◗ close Mains 2 input switch Q4S in

the Static Switch Cubicle;

◗ close switch Q5N in the Static Switch

Cubicle;

◗ open maintenance bypass switch

Q3BP in the Static Switch Cubicle;

Start-up of a unit

Start-up of a rectifier/charger

◗ it is recommended not to stop the

rectifier/charger because the battery

will no longer be charged. Rectifier/

charger start-up is automatic when

Mains 1 input switch Q1 is closed;

◗◗ red "load not protected" light 2 on

the control panel goes on;

◗ close battery circuit breaker QF1.

◗ close battery circuit breaker QF1

(systems equipped with a battery);

◗ close inverter output switch Q5N:

◗ press the "inverter on" button 6 on

the control panel:

◗◗ green "load protected" light 5 blinks

for 3 seconds,

◗◗ the inverter starts and awaits the

start of the other inverters;

◗ proceed in the same manner for

each line;

◗◗ when they are all on or enough have

been started to supply the rated load,

the output switch for each running line

closes. The load is supplied and the

connected devices can be started,

◗◗ red "load not protected" light 2

goes off,

◗◗ green "load protected" light 5

remains constant, on the control panel

of each line supplying the load.

Frequency converters

Proceed in the following order:

◗ check that all lines supplying the load

are off or that the load is disconnected;

◗ close the upstream switch supplying

Mains 1 power (on the LV switchboard);

◗ close Mains 1 input switch Q1.

The system powers up:

◗◗ red "load not protected" light 2 on

the control panel goes on,

◗◗ the rectifier-charger automatically

starts;

Q1 Q5N

OFF

ON

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OFF

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QF1

OFF

ON

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