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4-3-2 Battery (ER6)
This battery is built into the servo drive unit. One battery is provided for each absolute position control
axis' servo drive unit.
(1) Specifications
Battery unit specifications
Type ER6
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 af
ter 5 years
Back up time from battery warning (9F) to alarm occurrence Approx. 100 hours
Number of backup axes 2 axes
(2) Mounting
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. T
o protect the absolute position, do not shut off the servo drive unit control
power supply if the battery voltage becomes low (warning 9F).
CAUTION
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.