Delta Electronics none Regeneration error, Overload, Overspeed, Abnormal pulse control command

Chapter 10 TroubleshootingASDA-AB Series

: Regeneration error

	Potential Cause			Checking Method	Corrective Actions
Regenerative resistor is			Check the wiring connection of regenerative		Reconnect regenerative resistor.
not connected.			resistor.
Regenerative switch			Check if regenerative switch transistor is short-		Please contact your distributor for
transistor fault			circuited.		assistance or contact with Delta.
Parameter setting is in			Confirm the parameter setting and		Correctly reset parameter again.
error			specifications of regenerative resistor.
		: Overload
	Potential Cause			Checking Method	Corrective Actions
The drive has exceeded				Check if the drive is overloaded.	Increase motor capacity or reduce
its rated load during
					load.
continuous operation.
Control system				Check if there is mechanical vibration	Adjust gain value of control circuit.
parameter setting is
				Accel/Decel time setting is too fast.	Decrease Accel/Decel time setting.
incorrect.
The wiring of drive and				Check the wiring of U, V, W and encoder.	Ensure all wiring is correct.
encoder is in error.
		: Overspeed
	Potential Cause			Checking Method	Corrective Actions
Speed input command					Ensure that input command
			Use signal detector to detect if input signal is		frequency is stable (not fluctuate
is not stable (too much			abnormal.		too much) and activate filter
fluctuation).					function (P1-06, P1-07 and P1-08).
Over-speed parameter			Check if over-speed parameter setting value is		Correctly set over-speed parameter
setting is defective.			too low.		setting (P2-34).
		: Abnormal pulse control command
	Potential Cause			Checking Method	Corrective Actions
Pulse command
frequency is higher			Use pulse frequency detector to measure input		Correctly set the input pulse
than rated input			frequency.		frequency.
frequency.
		: Excessive deviation
	Potential Cause			Checking Method	Corrective Actions
Maximum deviation			Check the maximum deviation parameter		Increases the parameter setting
parameter setting is too			setting and observe the position error value
					value of P2-35.
small.			when the motor is running.
Gain value is too small.			Check for proper gain value.		Correctly adjust gain value.
Torque limit is too low.			Check torque limit value.		Correctly adjust torque limit value.
There is an overload.			Check for overload condition.		Reduce external applied load or re-
					estimate the motor capacity.

10-4 Revision March 2008, Doc. Name: 2007PDD23000011