Chapter 14 Fault Codes and Descriptions
ME300
No. Display on LED Keypad Fault Name Fault Descriptions
48
ACI loss
(ACE)
Analog input loss (including all the 4–20 mA analog
signal)
Action and Reset
Action condition 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.
When Pr.03-19 = 1 or 2, ACE is a “Warning”, and it is not 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 the ACE fault still displays on the keypad, return to the
factory for repair.
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