Yaskawa FSP Short Form - Manual (Page 43)

FSP Amplifier Short Form Installation Guide Inspection and Maintenance
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7.3.2. Replacing the Battery
1. With the FSP Amplifier's control power turned ON, replace the old
battery with a new one.
2. Turn OFF the FSP Amplifier's control power to clear the absolute
encoder battery alarm (A.83).
3. Turn ON the FSP Amplifier's control power.
4. Make sure that FSP Amplifier is operating normally after power is
turned on.
Battery replacement is now completed. After replacing the battery,
initialize the absolute encoder. Refer to the Sigma FSP Servo System
User's M anual (Document # YEA-SIA-FSP-3), Initializing of Absolute
Encoder.