Battery Unit (Mds-A-Bt) - Mitsubishi Electric MELDAS MDS-R Series Specifications And Instruction Manual

4-3-3 Battery unit (MDS-A-BT)

This battery is installed outside the servo drive unit. This battery unit backs up the absolute position
data of the multiple servo axes connected to each NC bus line. This battery unit also functions as a
terminator.
(1) Specifications
Nominal voltage
Nominal capacity
Battery continuous backup time
Battery useful life
Data save time during battery
replacement
Back up time from battery warning
(9F) to alarm occurrence
Number of backup axes
(2) Outline dimension drawings
 MDS-A-BT-2/-4/-6/-8
CAUTION
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Type
15
17
6
30
1. To protect the absolute position, do not shut off the servo drive unit control
power supply if the battery voltage becomes low (warning 9F).
2. The battery life will be greatly affected by the ambient temperature. The
above data is the theoretical value for when the battery is used at an ambient
temperature of 25°C. If the ambient temperature rises, generally the backup
time and useful life will be shorter.
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4. Dedicated Options
Battery unit specifications
MDS-A-BT-2 MDS-A-BT-4
4000mAh 8000mAh
Approx. 12,000 hours
7 years from date of unit manufacture
20 hours at time of delivery, 10 hours after 5 years
Approx. 100 hours
2 axes 4 axes
Use an M5 screw for the ø6 mounting hole
R3
4 - 11
MDS-A-BT-6 MDS-A-BT-8
3.6V
12000mAh 16000mAh
6 axes 7 axes
[Unit: mm]
100