Mitsubishi Electronics MDS-R ユーザーズマニュアル

 
 
 

 

 

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This battery is built into the servo drive unit. One battery is provided for each absolute position control 
axis' servo drive unit. 

 

Battery unit specifications 

Nominal voltage 

3.6V 

Nominal capacity 

2000mAh 

Battery continuous backup time 

Approx. 6,000 hours 

Battery useful life 

4 years from date of unit manufacture 

Approx. 20 hours at time of delivery, 

Data save time during battery replacement 

Approx. 10 hours after 5 years 

Back up time from battery warning (9F) to alarm occurrence

Approx. 100 hours 

Number of backup axes 

2 axes 

 
 

Mount the battery into the servo drive unit 

with the following procedure. 

(a)  Remove the battery holder's cover. 
(b)  Mount the battery into the battery 

holder. 

(c)  Securely insert the battery connector 

into BT1A. 

(d)  Mount the battery holder's cover. 
 

To battery holder

 

To BT1A

Battery connector

Battery

 

 

 
 

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. 

3.  The circuits in the servo drive unit could be damaged by static electricity. 

Always observe the following matters. 
(a) Ground the worker and work table. 
(b) Do not directly touch the conductive sections such as the connector pins 

or electric parts.