Clockwise (CW) End-of-Travel Limit Fault

HARDWARE: This fault can occur with all drives except for the GI4.

A CwEndOfTravelLimitFault occurs when the axis gets to the clockwise (positive) end-of-travel limit switch or when the current command is more than the value of the EndOfTravelCurrentThresholdHigh Parameter.

The CwEndOfTravelLimitFault can occur on an enabled axis. The error can only occur when the CW/Positive End-of-Travel Limit Fault box is selected in the FaultMask Parameter in the Configure workspace.

Use the table that follows to help find the cause and solution of the CwEndOfTravelLimitFault. The table does not include all of the causes of this fault, just the ones that occur most frequently.

Table: CwEndOfTravelLimitFault Causes and Solutions

Cause

Examine Your System

Solution

The polarity setting of the CW end-of-travel switch is set incorrectly.

Make sure that the CW limit activates in the Automation1 Status Utility when you move to the CW limit.

Make sure that the Positive/CW End-of-Travel Switch Polarity setting of EndOfTravelLimitSetup Parameter is set correctly.

The CW and CCW switches are swapped.

Refer to your system documentation. Make sure that the CW limit (not the CCW limit) activates in the Automation1 Status Utility when you move to the CW limit.

Make sure that the End-Of-Travel Switch Swap setting of EndOfTravelLimitSetup Parameter is set correctly.

The CW end-of-travel limit is wired incorrectly.

Refer to your system documentation.

Make sure that the wiring between the limit and the drive is correct.

The current-based limits are set incorrectly.

Refer to your system documentation.

Make sure that the Current-Based Limits setting of EndOfTravelLimitSetup Parameter is set correctly for your system.

The opto-isolated limits, if applicable, are configured incorrectly.

Refer to your system documentation.

Make sure that the Opto-Isolated Limits setting of the EndOfTravelLimitSetup Parameter is set correctly for your system.

Use the charts in the drop-down that follows to help you find the cause of the fault.