MGE UPS Systems EX 7RT - Manual (Page 56)

4.3 Hot Swapping the Power Module
This operation can be performed without interrupting the load.
Figure 4-1: Disconnecting the power module.
EX 5/7/11 RT System
Maintenance 4 — 4 86-86000-00 A01
1. Stop the UPS with the OFF button (press
more than 3 seconds).
Check if UPS is on bypass AC source:
LED is on (If LED is not on, do not
turn the manual bypass and call the after sales
support department).
2. Turn the manual bypass switch to the
BYPASS position.
3. Switch the battery circuit breaker(s) to the
OFF position.
CAUTION: Do not switch the Normal AC
source circuit-breaker to
the OFF position. Doing so
will disconnect power to the
load.
4. Loosen three screws to remove the
Input/Output box.
5. Disconnect the battery cables and
from the power module.
The power module can be replaced.
The connected equipment is powered by the
Bypass AC source.
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8
14
7
17 17
19
OFF ON
17
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19
Card Set ting s
66074 UPS
data
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B Y P A S S
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7
8
12
Tower configuration
Rack configuration
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40