Ex 5/7/11rt systems – MGE UPS Systems EX-7 User Manual

Page 56

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3.6

Return of Normal AC source

After an outage, the UPS restarts automatically when AC power is restored (unless this function has been disabled

via UPS personalization).

3.7

Shutdown

Figure 3-7: Shutdown display, circuit breaker, and AC source switch.

EX 5/7/11RT Systems

Operation

3 — 10

86-86000-00 B00

1.

Press the OFF button

more than 3

seconds.

CAUTION: The load is no longer protected by the

UPS. It is powered via the Bypass AC
source. If the UPS is set in frequency
converter mode, the load will not be
powered.

If the Bypass AC source is out of
tolerance, the UPS will generate a
calibrated 10msec output interrupt.

2.

Set the battery circuit breaker(s)

to the

OFF position.

3.

Set the Normal AC source circuit breaker

to the OFF position.

LED

is now OFF.

CAUTION: Performing this step will disconnect

power to the load.

4.

For the complete shutdown of the UPS (no
input and output power), the upstream circuit
breaker (not included) should be set to the
OFF position.

17

8

14

20

OFF

ON

17

20

8

14

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