No Limit Switches / Limit Switch Error

What does 27 mean?

Emergency stop because both hardware limit switches are either missing/open circuit, or they are incorrectly wired in relation to the motor's direction of rotation. This prevents the drive from accurately detecting its travel limits.

• Limit switch not detected by the system.
• Limit switch wiring is open or shorted.
• Limit switch is physically obstructed and not actuating.
• Configuration error: limit switch inputs not assigned.

Click steps to track your progress.

1. 1

   Check the wiring of both limit switches for proper connection and continuity.

2. 2

   Swap the limit switch connections if they are found to be inverted relative to the motor's direction of rotation.

3. 3

   Reprogram the terminal assignments and logic for the limit switches if the configuration is incorrect.