Delta VFD-VL Series User Manual

Chapter 6 Fault Code Information| VFD-VL
6-3
Display Description
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04
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Ground fault
Corrective Actions:
When (one of) the output terminal(s) is grounded, short
circuit current is more than 75% of AC motor drive rated
current, the AC motor drive power module may be damaged.
NOTE: The short circuit protection is provided for AC
motor drive protection, not for protection of the user.
1. Check the wiring connections between the AC motor
drive and motor for possible short circuits, also to
ground.
2. Check whether the IGBT power module is damaged.
3. Check for possible poor insulation at the output line.
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EFEE E05
C
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Short-circuit is detected between upper bridge and lower
bridge of the IGBT module.
Corrective Actions:
Return to the factory
Eoc Eat oSt EpEE EEE
EFEE E
06
C
eod :
aFult
Over-current at stop
Corrective Actions:
Return to the factory
Eov Eat cc Eel EEEE
EFEE E07
C
eod :
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DC BUS over-voltage during acceleration (230V: DC 450V;
460V: DC 900V)
Corrective Actions:
1. Check if the input voltage falls within the rated AC
motor drive input voltage range.
2. Check for possible voltage transients.
3. If DC BUS over-voltage due to regenerative voltage,
please increase the Deceleration Time or add an
optional brake resistor.
Eov Eat cDe Eel EEEE
EFEE E
08
C
eod :
aFult
DC BUS over-voltage during deceleration (230V: DC 450V;
460V: DC 900V)
Corrective Actions:
1. Check if the input voltage falls within the rated AC
motor drive input voltage range.
2. Check for possible voltage transients.
3. If DC BUS over-voltage due to regenerative voltage,
please increase the Deceleration Time or add an
optional brake resistor.
Eov Eat rNo la E DSP
EFEE E09
C
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DC BUS over-voltage during constant speed (230V: DC
450V; 460V: DC 900V)
Corrective Actions:
1. Check if the input voltage falls within the rated AC
motor drive input voltage range.
2. Check for possible voltage transients.
3. If DC BUS over-voltage due to regenerative voltage,
please increase the Deceleration Time or add an
optional brake resistor.
Call 1(800)985-6929 for Sales
deltaacdrives.com
sales@deltaacdrives.com
Call 1(800)985-6929 for Sales
deltaacdrives.com
sales@deltaacdrives.com

Delta VFD-VL Series Specifications

General

Brand	Delta
Model	VFD-VL Series
Category	DC Drives
Language	English