Delta VFD-EL-W Series User Manual

Chapter 6 Fault Code Information and MaintenanceVFD-EL-W
179
Fault Name
Fault Descriptions
Corrective Actions
External Fault
1. When multi-function input
terminals (MI1–MI4) are set to
external fault, the AC motor
drive stops output.
2. When changing the
communication address 2002H
bit0 = 1, the drive stops output.
The “EF” disappears once the signal source is cleared
and reset.
Internal EEPROM cannot be
programmed.
Return the unit to the factory.
Internal EEPROM cannot be
programmed.
Return the unit to the factory.
Internal EEPROM cannot be
read.
1. Press RESET key to reset all parameters to defaults.
2. If the fault still exists, return the unit to the factory.
Internal EEPROM cannot be
read.
1. Press RESET key to reset all parameters to defaults.
2. If the fault still exists, return the unit to the factory.
Wiring detection fault
U-phase error, return the unit to the factory.
Wiring detection fault
V-phase error, return the unit to the factory.
Wiring detection fault
W-phase error, return the unit to the factory.
Wiring detection fault
DC bus wiring detection error, return the unit to the factory.
Wiring detection fault
Temperature sensor error, return the unit to the factory.
Auto-acceleration/deceleration
failure
1. Check if the motor is suitable for operation by the AC
motor drive.
2. Check if the regenerative energy is too high.
3. Check for sudden load changes.
Communication Fault
1. Check the RJ45 connection between the AC motor
drive for loose wires and wiring to the correct pins.
2. Check if the communication protocol is properly set.
3. Refer to Parameter Group 09 Communication
Parameters in Chapter 4 for detailed information.
PID feedback signal fault
1. Check the parameter settings (Pr.10.01) and AVI/ACI
wiring.
2. Check for possible fault between the system response
time and the PID feedback signal detection time
(Pr.10.08)

Delta VFD-EL-W Series Specifications

General

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