Delta VFD5A5ME43ANNAA - Page 379

Chapter 14 Fault Codes and DescriptionsME300
14-16
Reset condition Immediately reset
Record Yes
Cause Corrective Actions
Press STOP key during
auto-tuning.
Re-execute auto-tuning.
Incorrect motor capacity (too large
or too small) and parameter setting
Check motor capacity and related parameters.
Set the correct parameters, that is Pr.01-01–01-02.
Set Pr.01-00 larger than motor rated frequency.
Incorrect motor wiring Check the wiring.
Motor shaft lock Remove the cause of motor shaft lock.
The electromagnetic contactor is
ON at output side (U/V/W) of the
drive
Make sure the electromagnetic valve is OFF.
The load is too large.
Reduce the load.
Replace the motor with a larger capacity model.
Accel./Decel. time is too short. Increase the setting values for Pr.01-12–01-19 (Accel./Decel. time).
ID No. Display on LCM Keypad Fault Name Fault Descriptions
41
PID loss ACI
(AFE)
PID feedback loss (analog feedback signal is only
valid when the PID function is enabled.)
Action and Reset
Action level When the analog input < 4 mA (only detects 4–20 mA analog input)
Action time Pr.08-08
Fault treatment parameter
Pr.08-09
0: warn and continue operation
1: warn and ramp to stop
2: warn and coast to stop
3: warn and operate at last frequency
Reset method
Auto
When Pr.08-09=3 or 4, AFE is a “Warning”. When the feedback signal
is > 4 mA, the ”Warning” is automatically cleared.
Manual When Pr.08-09=1 or 2, AFE is a “Fault”. You must rest manually.
Reset condition Immediately reset
Record
When Pr.08-09=1 or 2, AFE is a “Fault”, and the fault is recorded; when
Pr.08-09=3 or 4, AFE is a “Warning”, and the warning is not recorded.
Cause Corrective Actions
PID feedback cable is loose or cut
off.
Tighten the terminal.
Replace the cable with a new one.
Feedback device failure Replace the device with a new one.
Hardware failure
Check all the wiring. If the AFE fault still displays on the keypad, return to the
factory for repair.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
48
ACI loss
(ACE)
Analog input loss (including all the 4–20 mA analog
signal)
Action and Reset
Action level When the analog input is < 4 mA (only detects 4–20 mA analog input)
Action time Immediately act
Fault treatment parameter
Pr.03-19
0: Disable
1: Continue operation at the last frequency (warning, ANL displays on the
keypad)
2: Decelerate to 0 Hz (warning, ANL displays on the keypad)
3: Stop immediately and display “ACE”
Reset method
Auto
When Pr.03-19=1 or 2, ACE is a “Warning”. When analog input signal
is > 4 mA, the “Warning” is automatically cleared.
Manual When Pr.03-19=3, ACE is a “Fault”. You must reset manually.
Reset condition Immediately reset
Record When Pr.03-19=3, ACE is a “Fault”, and the fault is recorded.
Cause Corrective Actions
ACI cable is loose or cut off.
Tighten the terminal.
Replace the cable with a new one.