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80
You can connect only one additional battery unit.
For information on backup time, see the backup time table in “5-2 Estimated backup time”.
→
Page 43
See also
UPS
Additional battery unit
BU75RW
BUM100R
BU100RW
BU200RW
BUM300R
BU300RW
9-1
Connecting an additional battery unit
Extending the backup time
9
9
You can extend the backup time by connecting an additional optional battery unit to the UPS.
Adding a BUM100R to the BU75RW/BU100RW
(1) Connect the additional battery cable to the unit and to the connector on the back of the battery
unit.
Connect the cable to the additional battery signal connector.
(2) Turn ON the overcurrent protection switch on the back of the BUM100R (additional battery unit).
The battery addition lamp on the unit’s operation panel lights up after the unit’s AC input is con-
nected to a wall outlet (commercial power).
* When disconnecting the BUM100R,
fi
rst disconnect the additional battery signal cable, and then
disconnect the battery addition cable.
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BU75RW/
BU100RW
BUM100R
Battery connection
cable
Additional battery
signal connection
Additional battery
connection
Additional battery
signal connection
Additional battery
signal cable
Additional battery
connection
Overcurrent protection
switch
ON
OFF