Delta Electronics VFD-F Series manual Fault Descriptions, Corrective Actions

VFD-F Series

Fault	Fault Descriptions	Corrective Actions
Name
	Ground fault:
	The AC drive output is
	abnormal. When the
	output terminal is
	grounded (short circuit	Ground fault:
	current is 50% more	1. Check whether the IGBT power module
	than the AC drive rated
	current), the AC drive	is damaged.
		2. Check for possible poor insulation at the
	power module may be
		output line.
	damaged. The short
	circuit protection is
	provided for AC drive
	protection, not user
	protection.
	External Base Block.	1. When the external input terminal (B.B) is
		active, the AC drive output will be turned
	AC drive output is turned	off.
	off.	2. Disable this connection and the AC drive
		will begin to work again.
		1. Check parameter settings (Pr.10-00)
	PID Feedback Signal	and AVI/ACI1/ACI2 wiring.
		2. Check for possible fault between system
	Error
		reaction time and the feedback signal
		detection time (Pr.10-08/Pr.10-09).
	Fan Power Fault	Return to the factory.
	(150~300HP)
		Remove any foreign objects on the
	Fan 1 fault (150~300HP)	heatsinks and check for possible dirty heat
		sink fins.
	Fan 2 fault (150~300HP)	Remove any foreign objects on the
		heatsinks and check for possible dirty heat
		sink fins.
	Fan 3 fault (150~300HP)	Remove any foreign objects on the
		heatsinks and check for possible dirty heat
		sink fins.
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