Parker Hannifin G2 manual Motor Problems and Corrective Actions

10.5 Motor Problems and Corrective Actions

When an abnormality occurs during motor operation, first check the LED display as well as the error display LED (7 segments) on the front panel of the driver.

If the cause of the problem cannot be determined by the indication of the LED display, take an appropriate corrective action as provided below.

If the driver is still not be able to return to a normal operating condition despite corrective actions taken, stop operating the drive and contact us.

Problem		Possible cause	Item(s) to be inspected	Corrective action
	!	No AC power is being supplied.	Check the wiring.	Turn on the power.
	! The servo ON terminal is set to		Inspect.	Set to L.
		H.
The motor does not	!	The Servo ON disable (SRVDS)	Inspect.	Release the button.
servo-lock.		button is being pressed.
	!	Position control bandwidth,		Adjust to the proper value(s)
		velocity control bandwidth,	Inspect.
		and/or position integral limiting		or perform auto-tuning.
		value are too small.
			Check to see if the	Reduce the load or replace
	!	Motor is overloaded.	motor operates without	a motor with higher torque if
			any load.	the motor starts.
				Refer to the connection
The motor does not	!	Incorrect external wiring	Inspect the wiring.	diagram and connect
start.				correctly.
	!	Position control bandwidth,		Adjust to the proper value(s)
		velocity control bandwidth,	Inspect.
		and/or position integral limiting		or perform auto-tuning.
		value are too small.
			Check the motor	Refer to the connection
	!	Improper connections	connections in phases	diagram and connect
The motor rotation			A, B, C, and GND.	correctly.
is unstable.	!	Incorrect motor/driver model	Check the model	If the combination is
			numbers on the rating	incorrect, change to the
		combination
			nameplates.	correct combination.
			Check if the ambient	Lower the ambient
	! Ambient temperature is too high.		temperature is above
The motor				temperature to 45℃ or less.
			45°C.
overheats.
			Check to see if the	Reduce the load or replace
	!	Motor is overloaded.	motor operates without	a motor with higher torque if
			any load.	the motor starts.
	!	Improper mounting	Mounting screws are	Tighten the screws.
			loosened.
Abnormal sounds			Check for abnormal	Motor replacement is
	!	Bearing problem	sound and vibration
are generated.				necessary. (Contact us.)
			from the bearings.
	!	Mounting base vibration	Check the mounting	Reinforce the mounting
			base.	base.
	!	Incorrect motor/driver model	Check the model	If the combination is
			numbers on rating	incorrect, change it to the
		combination
			nameplates.	correct combination.
Motor torque is too	! Motor is overloaded.		Check the OVL error	Review the operation.
			signal.	Reduce the load.
small.
	!	Position control bandwidth,		Adjust to the proper value(s)
		velocity control bandwidth,	Inspect.
		and/or position integral limiting		or perform auto-tuning.
		value are too small.
	!	Incorrect motor/driver model	Check the model	If the combination is
			numbers on rating	incorrect, change it to the
		combination
Motor runs out of			nameplates.	correct combination.
control.			Check the	Refer to the connection
	!	Improper connections	motor/encoder	diagram and connect
					10
			connections	correctly.

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