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Lock-out/Tag-out
Figure 27. Bypass From UPS to LINE
Depress and HOLD
red button
2.
Turn the switch from LINE to SERVICE (see
UPS is now completely disconnected from AC power. Ensure that the UPS is off and the terminals are
completely de-energized before performing any maintenance on the UPS.
Figure 28. Bypass From LINE to SERVICE
3 3 . . 8 8
L L o o c c k k - - o o u u t t / / T T a a g g - - o o u u t t
The BPM comes with a Lock-out/Tag-out (LOTO) feature to keep the BPM bypass switch locked in SERVICE
mode while qualified service personnel works on the UPS. To use the LOTO feature:
1.
Press and hold the red bar (See
30
4–20kVA Users Guide P-164000669 4–20kVA Users Guide P-164000669—Rev 10
Rotate switch
to LINE position
Rotate switch
to SERVICE position
Figure 29
UTILITY
Figure 28
). The critical load is fed directly from utility and the
UTILITY
).
LINE
MODE
LOAD
INPUT
OUTPUT
BPM
TO
FROM
UPS
UPS
INPUT
OUTPUT
UPS
SERVICE
MODE
LOAD
INPUT
OUTPUT
BPM
TO
FROM
UPS
UPS
INPUT
OUTPUT
UPS
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