Delta VFD-M-D series User Manual

Chapter 6 Fault Code Information|VFD-M-D Series
6-4 Revision Jan. 2007, MDE2, SW V1.05
Fault
Name
Fault Descriptions Corrective Actions
Auto accel/decel failure
1. Check if the motor is suitable for operation by
AC motor drive.
2. Check if the regenerative energy is too large.
3. Load may have changed suddenly.
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.
Software protection failure Return to the factory.
Password is locked.
Keypad will be locked. Turn the power ON after
power OFF to re-enter the correct password. See
Pr.0-07 and 0-08.
PG feedback signal error
1. Check parameter settings and signal type of
PG feedback (Pr.2-11 to Pr.2-20).
2. Check if the wiring of PG is correct.
Limit signal error
1. Check if the switch function is correct.
2. Check if the wiring is correct.
Door open time-out
1. Increase “Door Open Time-out Setting” (Pr.3-
14).
2. Check if the switch function is correct.
Auto Tuning Error
1. Check the cable between drive and motor
2. Retry again
6.2 Reset
There are three methods to reset the AC motor drive after solving the fault:
1. Press
RESET
STOP
key on LC-M2E.
2. Set external terminal to “RESET” (set one of Pr.5-00~Pr.5-10 to 15 or 16) 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-M-D series Specifications

General

Brand	Delta
Model	VFD-M-D series
Category	Controller
Language	English