Delta ASD-B2-0121-F, User Manual

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Absolute System ASDA-B2-F
10-4
September, 2015
10
Battery Life
Figure 10.1.1 Curve of Discharge Current
(The above figure comes from EVE Energy Co. ER14505 Discharge Characteristics)
1. The above figure illustrates the discharge current curve generated by constant current test.
According to the testing result shown on the graph above, when the power consumption of an
absolute encoder is 65 uA or lower, if the voltage of the battery keeps 3 V or higher, the
expected battery life is about 21900 hr, approximately 2.5 years
(Note)
. Therefore, the lowest
voltage level of battery for an absolute encoder is set to 3.1 V.
2. The battery life expectancy is about 5 years and is able to provide 3.6 V or higher voltage
under normal temperature and humidity conditions.
Note: The battery life was measured when one single battery box is connecting to one servo drive and one
servo motor.