8151
Category: Alarm
Cause
Condition: The absolute encoder battery voltage is below the specified value (3.1V). Cause: Battery voltage is too low.
Corrective action
- Use monitor variable 26h to check whether battery voltage is below 3.1V.
- Measure whether the battery voltage is below 3.1V.
- The battery must not be connected to Pin3 or Pin4 of the CN2 encoder, otherwise it will discharge rapidly. If voltage is too low, replace the battery while drive control power is On. Clears automatically.