Motor Brake Control Via Relay - Servotronix CDHD2S User Manual

Application Setup
In both DISMODE4 and DISMODE5 modes, active disable and dynamic braking are supported.
In this case, active disable is used to stop the motor and dynamic braking is activated after DISTIME.

6.15 Motor Brake Control Via Relay

The CDHD2S can control the motor brake via an external relay. The relay can be connected to
any digital output on the CDHD2S machine I/F (C3) or controller interface (C2). It is recommended
to connect digital output 7.
Please refer to the Motor Brake Wiring and the following procedures.
The digital output polarity can be changed to match the drive electronics to the motor control
circuit.
The CDHD2S disable time can be set through the DISTIME parameter. When the drive receives
a disable command, it will turn off the brake output first, then wait for the brake disengagement
time to end before actually disabling it.
The brake engagement time cannot be set. When the drive receives the enable command, the
brake output is turned on at the same time to complete the enabling. It takes at most 1.5
milliseconds for the drive to complete enabling, while it usually takes tens of milliseconds for the
brake to disengage.
Procedure: Configuring the digital output to control the brake
When configuring digital output, please perform the following procedure in ServoStudio2.
1. Define the output.
Go to the Digital Inputs/Outputs screen and set the output (example: Output 1) to Mode "2 -
Brake Release Signal".
Figure 6-41 Dynamic braking (low ISTOP value)
Figure 6-42 Digital output setup for motor brake control
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