8506
Category: Alarm
Cause
- Power applied to the absolute encoder for the first time
- The encoder cable was removed and reconnected
- Both servo unit control power (+5V) and battery power have failed
- Absolute encoder fault
- Servo unit fault
Corrective action
- Confirm whether power is being applied for the first time; perform the encoder setup operation (Fn008).
- Confirm whether power is being applied for the first time, check encoder connections, and perform the encoder setup operation (Fn008)
- Check whether the battery and connector conditions of the encoder connector are correct; restore encoder power (replace the battery, etc.), then perform the encoder setup operation (Fn008).
- If the alarm cannot be cleared even after repeating the setup operation, replace the servo motor.
- The servo unit may be faulty. Replace the servo unit.