Download Dok CR12 Technical data

12-2 Operating Torque Motors
Rexroth IndraDyn T
12.2 Commissioning
The following points must be heeded especially during the commissioning
of synchronous torque motors.
Parameter
IndraDyn T motors are frameless motors whose individual components –
supplemented by an encoder system – are directly installed into the
machine by the manufacturer. As a result of this, kit motors have no data
memory to supply motor parameters or standard controller adjustment. At
startup, all parameters must be manually entered or loaded into the drive.
The DriveTop commissioning program makes all motor parameters of
Bosch Rexroth available.
Encoder polarity
When viewing the A side, the encoder must show a positive nominal
value for the clockwise rotation of the rotor. This connection must be
established before commutation adjustment.
Commutation adjustment
For IndraDyn T motors, it is generally necessary to receive the position of
the rotor compared to the stator immediately after startup or after a
malfunction. This is called identification of pole position or commutation
adjustment. The commutation adjustment process is the establishment of
a position reference to the electrical or magnetic model of the motor. The
commutation adjustment method depends on the encoder used.
Further applicable documents
Besides this documentation, the following additional documents are
required to commission motors:
• Rexroth IndraDrive Description of Functions, MNR R911299225
• Rexroth IndraDrive Parameter Description, MNR R911297317
• Rexroth IndraDrive Troubleshooting, MNR R911297319
DOK-MOTOR*-MBT********-PR03-EN-P