Delta VFD-B Series User Manual

Chapter 6 Fault Code Information|VFD-B-P Series
6-4 Revision April 2009, SW V1.00
Fault
Name
Fault Descriptions Corrective Actions
Password is locked.
Keypad will be locked. Turn the power ON after
power OFF to re-enter the correct password. See
Pr.00-07 and 00-08.
Analog feedback error or
ACI open circuit
1. Check parameter settings and wiring of Analog
feedback (Pr.10-00).
2. Check for possible fault between system
response time and the feedback signal
detection time (Pr.10-08).
PG feedback signal error
1. Check parameter settings and signal type of
PG feedback (Pr.10-10 and Pr.10-11).
2. Check if the wiring of PG card is correct.
Phase Loss Check input phase wiring for loose contacts.
EF when preliminary count
value attained
1. Check counter trigger signal
2. Check Pr.03-09, Pr.03-11setting
Auto Tuning Error
1. Check cabling between drive and motor
2. Check Pr.07-05
Under Current
1. Check Load current
2. Check Pr.06-12 to Pr.06-15 setting
6.2 Reset
There are three methods to reset the AC motor drive after solving the fault:
1. Press
RESET
STOP
key on PU01.
2. Set external terminal to “RESET” (set one of Pr.04-04~Pr.04-09 to 05) and then set to be ON.
3. Send “RESET” command by communication.
NOTE
Make sure that RUN command or signal is OFF before executing RESET to prevent damage or
personal injury due to immediate operation.

Delta VFD-B Series Specifications

General

Series	VFD-B
Cooling Method	Fan cooling
Overload Capacity	150% for 60 seconds
Braking Unit	Built-in
Control Mode	V/F control, Sensorless Vector Control
Communication	RS-485
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overload, Overtemperature, Short Circuit
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Humidity	90% RH (non-condensing)
Altitude	1000m (Derating required above 1000m)