IAI America PSEP - Manual (Page 53)

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2.
Wiring
Battery
Name NiMH battery (SANYO Electric Co., Ltd.)
Model AB-7
Rated 3.6V 3300mAh
Battery Life (reference) Approximately 3 years (It may vary depending on the usage condition.)
Charging Time
Approximately 72 hours
Note: About Battery Charge and Discharge
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for more than 72 hours in a row.
The battery can be charged when 24V is supplied to the controller.
The encoder data will be able to be retained for the duration (Note) stated below as per hour of battery
charge.
The data will be lost if the controller is turned OFF for longer than the data retained duration. Start
charging the battery as early as possible.
The battery has a limited product life and the data retained duration will gradually decrease. If a
sudden huge decrease started to occur to the retained duration, replace the battery.
(Note) Data Retained Duration per Hour Battery Charge
* The values stated below are the reference values of when the battery is new.
Setting in user parameter No. 19 0 1 2 3
Data Retained Duration
(reference)
6.6H 5.0H 3.3H 1.6H
[Refer to section 3.4 for the user parameter No.19.]