BECKHOFF EL7037 - Manual (Page 56)

Installation
Attention
Use a brake chopper terminal (EL9576) for short deceleration ramps!
Very short deceleration ramps may lead to temporarily increased feedback. In this case the
terminal would report an error. In order to avoid this, a brake chopper terminal (EL9576)
should be connected in parallel to the power supply for the motor so that any energy being
fed back is absorbed.
Connection types
The EL7047 Stepper Motor terminal has bipolar output stages and can control bipolar and unipolar motors.
Bipolar motors
Fig. 39: Bipolar control (serial) of a bipolar motor
Fig. 40: Bipolar control (parallel) of a bipolar motor
Note
Documentation for stepper motors from Beckhoff
These two examples show the connection of the bipolar Beckhoff motors AS1010, AS1020,
AS1030, AS1050 or AS1060. Further information on stepper motors from Beckhoff can be
found in the associated documentation available for download from our website at http://
www.beckhoff.com.
EL70x7 56 Version 1.0