14.3
Requirements on the Encoder of the Third-Party Motor
14.3.1
Motor Encoder of Asynchronous Third-Party Motor
Asynchronous motors can also be controlled by Rexroth IndraDrive control‐
lers in "open-loop" operation (without motor encoder). In "closed-loop" opera‐
tion (with motor encoder), a relative measuring system is sufficient for asyn‐
chronous motors.
14.3.2
Motor Encoder of Synchronous Third-Party Motor
For fail-safe drives with synchronous third-party motors at Rexroth IndraDrive
controllers, the following possible combinations or restrictions have to be tak‐
en into account when selecting the measuring system:
Drive range
Motor measuring system
Synchronous third-party
motor
Rexroth IndraDrive
Absolute
■
Relative
□
■
Advantageous combination
□
Combination is possible (restrictions specific to application), commis‐
sioning may be more complicated!
Tab.14-3:
Possible Combinations of Synchronous Third-Party Motor and Motor
Measuring System
The control section integrated in the drive controller can evaluate
measuring systems as a motor encoder, if they are contained in
"P‑0‑0074, Encoder type 1 (motor encoder)" (see also Project
Planning Manual "Rexroth IndraDrive Drive Controllers Control
Sections").
For information on absolute and relative measuring systems, see
section "Measuring Systems" of firmware documentation!
14.3.3
Motor Encoder Resolver - Notes on Selection
For operating "resolver" encoder types, there is the optional module EN1
available (see also Project Planning Manual "Rexroth IndraDrive Drive Con‐
trollers Control Sections").
Observe:
●
Data of resolver system to be compared must be available at 4 kHz
●
Ratio
●
Current consumption
●
DC resistance of stator
●
Number of poles
●
Phase shift
You can get more detailed information on request.
14.4
Notes on Selection and Commissioning
14.4.1
Selecting the Controller as Regards Continuous Current
The drive controller required for the respective motor and the supply unit are
determined by comparing the motor data to the data of these devices (see
DOK-INDRV*-SYSTEM*****-PR06-EN-P
Rexroth IndraDrive Drive Systems with HMV01/02 HMS01/02, HMD01, HCS02/03
Bosch Rexroth AG
245/309
Third-Party Motors at Rexroth IndraDrive Controllers
