NOTE:
The Rexroth drive has absolute encoders, therefore a battery is necessary to back-up the encoder signals. If the battery is low you will receive an error message.
Exchange the battery, according to the Rexroth manual.
NOTE:
In case the position is lost you need to reset to the reference point, you will find instructions in the Rexroth manual.
ATTENTION:
Do not switch off the machine when you exchange the battery, otherwise the position gets lost.