Operating Instructions

Fault Codes
Digital Keypad
327 | 443
Reset condition
Immediately reset
Record
When Pr.10-15=1 or 2, PGF4 is a “Fault”, and the fault is recorded.
Cause
Corrective Actions
Incorrect settings for PG feedback
parameters
Reset correct values for Pr.10-13 and Pr.10-14.
Incorrect settings for ASR parameters and
accel./decel. time
Reset ASR parameters.
Set correct accel./decel time.
Incorrect settings of encoder parameters
Reset encoder parameters (Pr.10-01).
Accel./Decel. time is too short
Reset proper accel./decel. time.
Incorrect settings of torque limit
parameters (Pr.06-12,Pr.11-17–20)
Reset proper setting values for Pr.06-12 and Pr.11-17–Pr.11-20.
Motor shaft lock
Remove causes of motor shaft lock.
Mechanical brake is not released
Check the action timing of the system.
ID*
Display on LCD 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 is displayed on the keypad)
2: Decelerate to stop (warning, ANL is displayed 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.
External device failure
Replace the device with a new one.
Hardware failure
Check all the wiring. If ACE still exists, return to the factory for repair.