Example circuits
A.3 Special applications
SIRIUS 3RW50 soft starter
218
Manual, 09/2019, A5E35628455002A/RS-AA/001
A.3.2
Controlling a motor with a magnetic parking brake
Requirements
ON / RUN relay output was parameterized to RUN.
WARNING
Automatic restart.
Can cause death or serious injury.
If a starting command is pending, a restart will be triggered automatically after the reset.
This particularly applies if the motor protection has tripped. Dangerous states of the system
can result.
Reset the start command (e.g. via the PLC or switch) before performing a reset.
To do this, for example, link the group error output (terminals 95 and 96) into the control.
Wiring
F1
Fuse
S1
Switch
S2
Pushbutton: Reset > 4 s
Q1
Motor starter protector
Q11 3RW50 soft starter
P1
Indicator light, fault
M1
Motor