Limit Position Control - Siemens SINAMICS G120C USS/MB Operating Instructions Manual

Advanced commissioning

6.10 Limit position control

6.10 Limit position control
Limit position and limit switch
A limit position is a position in the direction of motion of a machine component at which the
motion stops due to the construction. A limit switch is a sensor that signals that the limit position
has been reached.
Function
The limit position control moves the motor depending on two limit switch signals:
● When a limit position is reached, the inverter stops the motor.
● At a limit position, the inverter starts the motor with a new motion command in the direction
of the opposite limit position.
● If neither of the limit positions has been reached when the power is switched on, the polarity
of the speed setpoint decides in which direction the motor is to start with the first motion
command.
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Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF
SINAMICS G120C converter