MGE UPS Systems Galaxy PW Instrukcja Użytkownika Pobierz pdf (Strona 37)

29

parallel UPS redundant and

for increased output

See figure 22.

■ isolate all UPSs

Proceed in the following order (see figure

23):

❏ shut down the inverters (press the

"inverter OFF" buttons 8 for three sec-

onds),

❏ close switch Q3BP and open switch

Q5N in the external bypass unit,

❏ open switches Q1, QF1 and Q5N on the

UPS units.

■ start-up

Following servicing, proceed in the follow-

ing order (see figure 24):

❏ close switches Q5N on the UPS units,

❏ close switch in the external bypass unit,

❏ open switch Q3BP in the parallel-con-

nection unit,

❏ close switches Q1 and QF1 on the UPS

units,

❏ start the inverters (press the "inverter

ON" buttons 7 ).

NOTE

We recommend that you

call on the after-sales

support department to

carry out these opera-

tions.

Note that for parallel

UPSs for increased out-

put, the entire installation

must be bypassed

because it is not possible

to isolate just one UPS

unit.

Maintenance

Fig. 24

Fig. 23

Fig. 22

2 3 4 5

1

0

1

0

1

0

1

0

Q5N

Q3BP

Q5NQ1 Q4S

QF1

0

I

external bypass

7

5

6

1

Galaxy PW

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

2 3 4 5

1

0

1

0

1

0

1

0

Q5N

Q3BP

Q5NQ1 Q4S

QF1

0

I

external bypass

7

5

6

1

Galaxy PW

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

2

1

Q3BP

Galaxy 1

Galaxy 2

2

1

Galaxy 3

2

1

Galaxy 4

2

Q5N

1

2

Q1

QF1

Q5N

Q4S

User’s Manual

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