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MDS-D2/DH2 Series Instruction Manual
8.3 Adding and Replacing Units and Parts
8.3.3 Replacing the Battery
(1) Replacing parts
< Replacing a battery equipped with the spindle/servo drive unit
or the battery unit, MDS-BTBOX-36 >
When the battery voltage is low (warning 9F), 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.
(2) Replacement procedure
Replace the battery with the following procedures.
<Replacement procedure for the cell battery ER6V-C119B>
[1] Turn the breaker for the input power OFF. Make sure the power of the replacing drive unit is turned OFF.
[2] Open the battery holder cover located at the front of the drive unit.
[3] Pull out the battery connector connected with the drive unit. Remove the battery.
[4] Connect a new battery connector to the connector position where the old battery connector was pulled out
from in step [2].
[5] Cancel the warning 9F by executing an alarm reset (pushing the NC reset button).
(Note) Replace the batteries while applying the drive unit’s control power.
Type Battery equipped unit
ER6V-C119B Spindle/servo drive unit
LR20 (size-D alkaline battery) Battery unit, MDS-BTBOX-36
CAUTION
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
1. Replace the batteries with new ones immediately after the battery voltage drop alarm (9F) has been output.
2. Replace the batteries while applying the drive unit’s control power.
Pull out the battery
EQPPGEVQT
Pull the cover open while
holding down the tab of the
battery holder.
Connect the battery
connector to the connector
position where pulled out
from.
Store a new battery into the
battery holder.