BU
75
RW/BU
100
RW/BU
200
RW/BU
300
RW
9
81
Battery connection
cable
Additional battery
signal connection
Overcurrent protection
switch
ON
OFF
Additional battery
connection
Additional battery
signal connection
Additional battery
signal cable
Additional battery
connection
AC input overcurrent
protection switch
ON
OFF
BU200RW/
BU300RW
BUM300R
Adding a BUM300R to the BU200RW/BU300RW
(1) Connect the battery connection cable to the battery connectors on the rear side of the unit and the
battery unit. Connect the battery connection cable to the additional battery signal connector also.
(2) Turn ON the overcurrent protection switch on the back of the battery unit. The battery addition
lamp on the operation panel lights up after the AC input plug is connected to a commercial power
source and the INPUT PROTECTION switch (AC input overcurrent protection switch) is turned
ON.
* When disconnecting the BUM300R,
fi
rst disconnect the additional battery signal cable, and
then disconnect the battery addition cable.