ECODRIVE03-FL*-04VRS Motor Configuration 5-3
DOK-ECODR3-FL*-04VRS**-FK01-EN-P
5.3 Synchronous Motors
This drive firmware can be used to run the following Rexroth housing
motors
• MHD
• MKD and MKE motors
plus rotary and linear synchronous kit motors, types MBS and LSF.
Rexroth housing motors have the stator, rotor, bearings and encoder
factory-installed in the housing. They are equipped with a motor feedback
data memory containing
• motor parameters
• motor feedback parameters
• synchronous motor-specific parameters and
• default control parameters
These motors are recognized by the firmware and the correct settings for
them are made automatically. In these motors, the adjustment between
the physical rotor position and the position supplied by the encoder has
already been performed at the factory. The resulting offset is stored in the
Commutation offset parameter in the motor feedback data memory
(synchronous-motor-specific parameter). Rexroth housing motors are
configured ready for operation at the factory, meaning that they can be
placed in service without having to make any additional motor-specific
settings.
5.4 Motor Holding Brake
A motor holding brake can be mounted via a potential-free contact built
into the drive controller. It prevents unwanted axis movements when the
drive enable signal is off. (e.g. for vertical axes without counterweights)
Note: The holding brake for Rexroth motor types MHD and MKD is
not designed to halt operation of the drive. After about 20,000
motor revolutions with the brake applied, it is worn down.
Pertinent Parameters
To set the motor holding brake, use the following parameters
• A119, Best possible deceleration
• CM07, Holding brake type
• Holding brake delay time (always 150 msec)
The parameters for the motor
holding brake are automatically
set in motors with motor feedback
data memory
With MHD, MKD and MKE motors, Parameter CM07 is set
automatically.
Automatic Detection and
Parameter Loading of Rexroth
Housing Motors (MHD and MKD
Motors)
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