Delta VFD055ED43S User Manual

Chapter 14 Fault Codes | VFD-ED
14-2
*: ID No. are in accordance with the settings of Pr.06-16 to Pr.06-21.
ID
No.*
Display on
KPED-LE01
Display on KPC-CC01 Descriptions
1

Over-current during acceleration
(output current exceeds three times the drive’s rated current during
acceleration).
corrective action
1. Short-circuit at motor output: Check for possible poor
insulation at the output.
2. Acceleration Time is too short: Increase the Acceleration
Time.
3. AC motor drive output power is too small: Replace with a
drive with larger capacity.
2

Over-current during deceleration
(output current exceeds three times the drive’s rated current during
deceleration).
corrective action
1. Short-circuit at motor output: Check for possible poor
insulation at the output.
2. Deceleration Time is too short: Increase the Deceleration
Time.
3. AC motor drive output power is too small: Replace with a
drive with larger capacity.
3

Over-current during steady operation
(output current exceeds three times the drive’s rated current
during constant speed).
corrective action
1. Short-circuit at motor output: Check for possible poor
insulation at the output.
2. Sudden increase in motor load: Check for possible motor stall.
3. AC motor drive output power is too small: Replace with a
drive with larger capacity.
4

Ground fault
When one or more of the output terminals is (are) grounded, and
the short circuit current is more than 60% of the AC motor drive
rated current, the AC motor drive power module may be damaged.
NOTE: The short circuit protection is to protect the AC motor
drive, not to protect you.
corrective action
1. Check the wiring connections between the AC motor drive and
motor for possible short circuits, also check connection to
ground.
2. Check whether the IGBT power module is damaged.
3. Check for possible poor insulation at the output.
5

occ
Short Circuit
Fault
Short
circuit is detected between the IGBT module upper bridge and
lower bridge.
corrective action
Contact the dealer or manufacturer to return the motor drive to the
factory for repair.
6

Over-current at stop
Hardware failure in over-current detection
corrective action
Contact the dealer or manufacturer to return the motor drive to the
factory for repair.
ocA
oc at Accel
Fault
ocd
oc at Decel
Fault
ocn
oc at Normal SPD
Fault
GFF
Ground Fault
Fault
ocS
oc at Stop
Fault

Delta VFD055ED43S Specifications

General

Brand	Delta
Model	VFD055ED43S
Category	DC Drives
Language	English