CCW Limit Stop Input Signal

What does 0101 mean?

This fault indicates that the pulse output operation was stopped due to a CCW limit signal input. This typically occurs during an origin search function, signifying that the machine has reached its negative travel limit, preventing further movement in the CCW direction.

• CCW limit switch physically activated during an origin search.
• Miswiring of the CCW limit signal input, causing a false trigger.
• Incorrect 'Limit Input Signal Type' (NC or NO) configured in PLC Setup for the CCW limit switch.

Click steps to track your progress.

1. 1

   Manually move the driven axis in the CW (clockwise) direction until the CCW limit switch is physically disengaged.

2. 2

   Measure continuity or voltage at the CCW limit input terminal to verify signal status (ON/OFF) and expected voltage level (e.g., 24VDC for ON, 0VDC for OFF) based on the configured 'Limit Input Signal Type' in PLC Setup.

3. 3

   Access the PLC Setup 'I/O Module Tab Page' using CX-Programmer and verify the 'Limit Input Signal Type' parameter is correctly set to 'NC (Normally Closed)' or 'NO (Normally Open)' matching the physical switch.