Delta Electronics none manual Potential Cause and Corrective Actions, Overvoltage, Pulse shift

Chapter 10 TroubleshootingASDA-AB Series

10.2 Potential Cause and Corrective Actions

Servo Drive Fault Messages

: Overcurrent

	Potential Cause		Checking Method	Corrective Actions
Short-circuit at drive			1. Check the wiring connections between drive	Repair the short-circuited and avoid
output (U, V, W)			and motor.	metal conductor being exposed.
			2. Check if the wire is short-circuited.
Motor wiring error			Check if the wiring steps are all correct when	Follow the wiring steps in the user
			connecting motor to drive.	manual to reconnect wiring.
IGBT error			Heat sink overheated	Please contact your distributor for
				assistance or contact with Delta.
Control parameter			Check if the setting value exceeds the factory	Set the setting back to factory
				default setting and then reset and
setting error			default setting.
				adjust the parameter setting again.
				1. Ensure that input command
Control command			Check if the control input command is unstable	frequency is stable (too much
setting error			(too much fluctuation).	fluctuation).
				2. Activate filter function.
		: Overvoltage
	Potential Cause		Checking Method	Corrective Actions
The main circuit voltage			Use voltmeter to check whether the input
has exceeded its			voltage falls within the rated input voltage. (For	Use correct power supply or
maximum allowable			voltage specification, please refer to section	stabilizing power.
value.			11.1 in Chapter11.)
Input power error			Use voltmeter to check whether the input	Use correct power supply or
(Incorrect power input)			voltage is within the specified limit.	stabilizing power.
		: Undervoltage
	Potential Cause		Checking Method	Corrective Actions
The main circuit voltage			Check whether the wiring of main circuit input	Reconfirm voltage wiring.
is below its minimum			voltage is normal.
specified value.
No input voltage at			Use voltmeter to check whether input voltage at	Reconfirm power switch.
main circuit.			main circuit is normal.
Input power error			Use voltmeter to check whether the input	Use correct power supply or serial
(Incorrect power input)			voltage is within the specified limit.	stabilizing power.
		: Z Pulse shift
	Potential Cause		Checking Method	Corrective Actions
Encoder is damage.			Check Encoder for the damage.	Repair or replace the motor.
Encoder is loose.			Examine the Encoder connector.	Install the motor again.

Revision March 2008, Doc. Name: 2007PDD23000011 10-3