REXROTH EcoDrive Cs - Encoder

8-34 Motors Rexroth EcoDrive Cs Drives
DOK-ECODR3-DKC**.3-CS*-PR02-EN-P
Encoder
To control the motor speed and/or to position the motor, the drive
controller requires information on the current motor position.
To achieve this, the integrated encoder system (motor encoder) makes
the appropriate signals available to the drive controller. The drive
controllers are capable of transmitting the positional value thus
determined to a superordinate CNC or PLC.
Encoder data memory
The encoder electronics is equipped with a data memory where the motor
type name, the control loop parameters and the motor parameters are
filed.
These data are read by the digital intelligent drive controllers by Rexroth.
This ensures
• quick and easy startup,
• adjustment between the motor and the drive controller without the risk
of damage to the motor.
Following encoder variants are available for MSM motors:
Option Encoder type Measurement
method
System precision Position input type
CO Incremental encoder inductive
±2 angular minutes
relative
MO Absolute encoder optical
±2 angular minutes
absolute
Fig. 8-46: MSM motor encoder
Courtesy of CMA/Flodyne/Hydradyne ▪ Motion Control ▪ Hydraulic ▪ Pneumatic ▪ Electrical ▪ Mechanical ▪ (800) 426-5480 ▪ www.cmafh.com