Delta Electronics ASDA-AB Watch dog execution time out, Encoder error Position detector fault

			Chapter 10 TroubleshootingASDA-AB Series
		: Watch dog execution time out
	Potential Cause		Checking Method	Corrective Actions
				If there are any abnormal
Watch dog execution			Check and reset the power supply.	conditions after resetting the power
				supply, please contact your
error.
				distributor for assistance or contact
				with Delta.

: Encoder error (Position detector fault)

	Potential Cause			Checking Method	Corrective Actions
The wiring of encoder is			1. Check if all wiring is correct.		Ensure all wiring is correct.
			2.	Check if the users conduct the wiring by
in error.				the wiring information in the user manual.
Encoder is loose			Examine the encoder connector.		Install the motor again.
The wiring of encoder is			Check if all connections are tight.		Conduct the wiring again.
defective.
Encoder is damage			Check the encoder for the damage.		Repair or replace the motor.
		: Adjustment error
	Potential Cause			Checking Method	Corrective Actions
The setting value of			1.	Remove CN1 wiring.	If the error does not clear after
					executing the drift adjustment
drift adjustment has
			2. Execute the drift adjustment again. (Set		again, please contact your
exceeded its maximum
allowable value.				P2-08 to 20 first, and then set P4-10 to 5.)	distributor for assistance or contact
					with Delta.
		: Emergency stop activated
	Potential Cause			Checking Method	Corrective Actions
Emergency stop switch			Check if emergency stop switch is On or Off.		Activate emergency stop switch.
is activated.
		: Reverse (CWL) limit switch error
	Potential Cause			Checking Method	Corrective Actions
Reverse limit switch is			Check if reverse limit switch is On or Off.		Activate reverse limit switch.
activated.
Servo system is not			Check the value of control parameter setting		Modify parameter setting and re-
stable.			and load inertia.		estimate motor capacity.
		: Forward (CCWL) limit switch error
	Potential Cause			Checking Method	Corrective Actions
Forward limit switch is			Check if forward limit switch is On or Off.		Activate forward limit switch.
activated.
Servo system is not			Check the value of control parameter setting		Modify parameter setting and re-
stable.			and load inertia.		estimate motor capacity.

Revision January 2009 10-5