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7 Maintenance
MITSUBISHI CNC
7-3-3 Replacing the battery
(1) Replacing parts
<Replacing a battery equipped with the servo drive unit or the battery unit, MDS-BTBOX-36>
When the battery voltage is low (warning F9), place an order for the same type of a battery as the one
currently equipped with the unit.
Battery type LR20 is commercially available as a size-D alkaline battery. The battery may be purchased
and replaced by the user.
Battery type
(Note) Four LR20 size-D alkaline batteries are needed for per battery unit, MDS-BTBOX-36.
<Replacing the battery unit MR-J3BAT>
The battery unit itself must be replaced because the battery is built into the unit.
When the battery voltage is low (warning F9), place an order for the same type of the battery unit as the
one to be replaced.
Type Battery equipped unit
MR-J3BAT Servo drive unit
LR20 (size-D alkaline battery) Battery unit, MDS-BTBOX-36
1. When the battery voltage is low (warning 9F), do not shut OFF the power of the drive unit until
replacement of the battery to protect the data
2. Replace the MDS-BTBOX-36 battery with new batteries (LR20) that is within the recommended
service period.
CAUTION