YASKAWA MECHATROLINK Sigma 2 Series User Manual page 181

9 Troubleshooting
A.83
A.83: Encoder Battery Error
Display and Outputs
Alarm Outputs
Alarm Code Outputs
ALO1 ALO2
OFF OFF
Note: OFF: Output transistor is OFF (alarm state).
Status and Remedy for Alarm
At power ON
Pn002.2 = 0
Pn002.2 = 1
Cause
A
• Battery is not connected.
• Battery connection is defective.
B Battery voltage is below specified value.
Specified value: 2.7 V.
C
Circuit board (1PWB) is defective.
Note: No alarm will occur at the SERVOPACK if the battery error occurs
during operation.
ALM Output
ALO3
OFF OFF
At SENS_ON command
A, B, C
C
Check and correct battery connection.
Install a new battery while the control
power to SERVOPACK is ON. After
replacement, turn ON the power again.
Replace the servomotor.
9-6
C
Remedy