Delta VFD220B43A User Manual

Chapter 6 Fault Code Information_VFD-B Series
Revision 10/2005, BE13, SW V4.08 6-3
Fault Name Fault Descriptions Corrective Actions
GFF hardware error
CC (current clamp)
OC hardware error
OV hardware error
Return to the factory.
Communication Error
1. Check the RS485 connection between the AC motor
drive and RS485 master for loose wires and wiring to
correct pins.
2. Check if the communication protocol, address,
transmission speed, etc. are properly set.
3. Use the correct checksum calculation.
4. Please refer to group 9 in the chapter 5 for detail
information.
Over-current during
acceleration
1. Short-circuit at motor output: Check for possible poor
insulation at the output lines.
2. Torque boost too high: Decrease the torque
compensation setting in Pr.7-02.
3. Acceleration Time too short: Increase the Acceleration
Time.
4. AC motor drive output power is too small: Replace the
AC motor drive with the next higher power model.
Over-current during
deceleration
1. Short-circuit at motor output: Check for possible poor
insulation at the output line.
2. Deceleration Time too short: Increase the Deceleration
Time.
3. AC motor drive output power is too small: Replace the
AC motor drive with the next higher power model.
Over-current during steady
state operation
1. Short-circuit at motor output: Check for possible poor
insulation at the output line.
2. Sudden increase in motor loading: Check for possible
motor stall.
3. AC motor drive output power is too small: Replace the
AC motor drive with the next higher power model.

Delta VFD220B43A Specifications

General

Brand	Delta
Model	VFD220B43A
Category	Controller
Language	English