Delta Electronics VFD-VE Series manual Fault Code Information, Common Problems and Solutions

Chapter 6 Fault Code Information and Maintenance

6.1 Fault Code Information

The AC motor drive has a comprehensive fault diagnostic system that includes several different alarms and fault messages. Once a fault is detected, the corresponding protective functions will be activated. The following faults are displayed as shown on the AC motor drive digital keypad display. The six most recent faults can be read from the digital keypad or communication.

NOTE

Wait 5 seconds after a fault has been cleared before performing reset via keypad of input terminal.

6.1.1 Common Problems and Solutions

Fault Name	Fault Descriptions		Corrective Actions
		1.	Short-circuit at motor output: Check for
	Over-current during		possible poor insulation at the output
	acceleration		lines.
	(Output current	2.	Acceleration Time too short: Increase the
	exceeds triple rated		Acceleration Time.
	current during	3.	AC motor drive output power is too small:
	acceleration.)		Replace the AC motor drive with the next
			higher power model.
	Over-current during	1.	Short-circuit at motor output: Check for
			possible poor insulation at the output line.
	deceleration
		2.	Deceleration Time too short: Increase the
	(Output current
			Deceleration Time.
	exceeds triple rated
		3.	AC motor drive output power is too small:
	current during
			Replace the AC motor drive with the next
	deceleration.)
			higher power model.
	Over-current during	1.	Short-circuit at motor output: Check for
	steady state		possible poor insulation at the output line.
	operation	2.	Sudden increase in motor loading: Check
	(Output current		for possible motor stall.
	exceeds triple rated	3.	AC motor drive output power is too small:
	current during		Replace the AC motor drive with the next
	constant speed.)		higher power model.
	Hardware failure in	Return to the factory
	current detection

Revision August 2008, 03VE, SW V2.04 6-1