Delta Electronics VFD-EL manual Fault

		Chapter 6 Fault Code Information and Maintenance
Fault	Fault Descriptions		Corrective Actions
Name
		1.	Short-circuit at motor output: Check for
			possible poor insulation at the output lines.
		2.	Torque boost too high: Decrease the torque
	Over-current during		compensation setting in Pr.07.02.
		3.	Acceleration Time too short: Increase the
	acceleration
			Acceleration Time.
		4.	AC motor drive output power is too small:
			Replace the AC motor drive with the next
			higher power model.
		1.	Short-circuit at motor output: Check for
			possible poor insulation at the output line.
	Over-current during	2.	Deceleration Time too short: Increase the
			Deceleration Time.
	deceleration
		3.	AC motor drive output power is too small:
			Replace the AC motor drive with the next
			higher power model.
		1.	Short-circuit at motor output: Check for
			possible poor insulation at the output line.
	Over-current during	2.	Sudden increase in motor loading: Check for
			possible motor stall.
	constant speed operation
		3.	AC motor drive output power is too small:
			Replace the AC motor drive with the next
			higher power model.
		1.	When multi-function input terminals (MI3-MI9)
	External Fault		are set to external fault, the AC motor drive
			stops output U, V and W.
		2.	Give RESET command after fault has been
			cleared.
	Internal EEPROM can not be	Return to the factory.
	programmed.
	Internal EEPROM can not be	Return to the factory.
	programmed.
		1.	Press RESET key to set all parameters to
	Internal EEPROM can not be
			factory setting.
	read.
		2.	Return to the factory.
	Internal EEPROM can not be	1.	Press RESET key to set all parameters to
			factory setting.
	read.
		2.	Return to the factory.
	U-phase error
	V-phase error
	W-phase error	Return to the factory.
	OV or LV
	Temperature sensor error

Revision August 2008, 2ELE, V1.02 6-3