Delta VFD-EL-W Series User Manual

Chapter 6 Fault Code Information and MaintenanceVFD-EL-W
178
Fault Name
Fault Descriptions
Corrective Actions
Overload 1
Internal electronic overload trip
1. Check for possible motor overload.
2. Check the electronic thermal overload setting.
3. Replace the drive with a larger capacity model.
4. Reduce the current level so that the drive output
current does not exceed the value in the Motor Rated
Current (Pr.07.00).
Overload 2
Motor overload.
1. Reduce the motor load.
2. Adjust the over-torque detection settings to
appropriate values (Pr.06.03–Pr.06.05).
CC (current clamp)
Return the unit to the factory.
OV hardware fault
Return the unit to the factory.
OC hardware fault
External Base Block
1. When the external input
terminals (B.B) (MI1–MI4) are
active, the AC motor drive stops
output.
2. When changing the
communication address 2002H
bit2 = 1, the drive stops output.
The “bb” disappears once the signal source is cleared.
Over-current during
acceleration
1. Check if the screws between the drive and motor are
loosen.
2. Check for possible poor insulation between the U-V-W
terminals to the motor.
3. Increase the Acceleration Time.
4. Decrease the torque compensation setting (Pr.07.02).
5. Replace the drive with a larger capacity model.
Over-current during
deceleration
1. Check for possible poor insulation between the U-V-W
terminals to the motor.
2. Increase the Deceleration Time.
3. Replace the drive with a larger capacity model.
Over-current during constant
speed operation
1. Check for possible poor insulation between the U-V-W
terminals to the motor.
2. Check for possible motor stall.
3. Replace the drive with a larger capacity model.

Delta VFD-EL-W Series Specifications

General

Brand	Delta
Model	VFD-EL-W Series
Category	DC Drives
Language	English