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What is the cause for A302 error seen on display of Lexium 32 ?

A302 error is displayed when the digital input which is assigned as Limit Switch Positive (LIMP) has been interrupted.

The firmware monitors the limit switch inputs to prevent the motor from over-traveling when limit switches are used and assigned to the digital inputs.
If the limit switch for end of travel in the positive direction is faulty or has a intermittent connection to the drive then A302 will result.

Check all wiring related to the limit switch which is used to define the end of travel in the positive direction.

 
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