Software limit switches

Software limit switches are used to limit the travel range of an axis. Monitoring of the software limit switches can be activated and configured in the configuration menu of the software module during startup. See chapter Monitoring functions. The drive must be referenced to enable monitoring of the software limit switches.

If software limit switch monitoring is enabled, the following response will be triggered depending on the active operating mode as soon as the configured positive or negative limit switch position is exceeded:

• Jog mode
• The drive stops at the software limit switch position using the deceleration specified via the table. If "Limit switch fault response" is enabled, the fault message E30.01/02 "Positive/negative limit switch hit" is issued.
• Table speed control
• The drive stops along the configured emergency stop ramp if the respective "Limit switch fault response" is activated. The fault message E30.01/02 "Positive/negative limit switch hit" is issued.
• Positioning mode
• If a target position is specified that lies beyond the position of a software limit switch, no travel job will be performed when the motor is at standstill. Otherwise, the drive stops with the deceleration set for the application limits. The fault message E19.02 "Position setpoint violation" is issued.

Error messages can be reset with a rising edge at the "Output stage enable/reset" signal. First, specify a direction of rotation or a target position in the direction of the valid range of the software limit switches.