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Inspection, Maintenance, and Troubleshooting
9.1.3 Replacing Battery for Absolute Encoder
9 -4
9.1.3 Replacing Battery for Absolute Encoder
If the voltage of the battery for an absolute encoder drops to approx. 2.7 V or less, an Absolute
Encoder Battery Alarm (A. 83) will occur in the Servopack. This alarm occurs when the Servo-
pack receives a signal from the absolute encoder when the power to the Servopack is turned ON.
Therefore, the Servopack will not give an alarm when the battery voltage drops below the mini-
mum voltage level while the power is being supplied to the Servopack.
Refer to
5.7.3 Handling Batteries
for the battery type recommended for absolute encoders.
Replace the battery using the following procedure if the battery voltage drops below the mini-
mum required battery voltage.
J
J
Battery Replacement Procedure
1.
Replace the battery while the control power to the Servopack is ON.
2.
After replacement, turn OFF the power to the Servopack in order to clear the Absolute En-
coder Battery Alarm (A. 83).
3.
Turn ONthe power to the Servopack again and confirm that it operatesproperly to complete
battery replacement.
The absolute encoder data will be lost when the control power to the Servopack is turned OFF and when the
encoder cable is disconnected from the battery. If the data is lost, refer to
5.7.4 Initializing the Absolute Encoder
and initialize the absolute encoder.
9
IMPORTANT
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