Chapter 14 Fault Codes and DescriptionsME300
14-14
ID No. Display on LCM Keypad Fault Name Fault Descriptions
28
Under current
(uC)
Low current detection
Action and Reset
Action level Pr.06-71
Action time Pr.06-72
Fault treatment parameter
Pr.06-73
0: No function
1: warn and coast to stop
2: warn and ramp to stop by the 2
nd
deceleration time
3: warn and continue operation
Reset method
Auto
When Pr.06-73=3, uC is a “Warning”. The warning is automatically
cleared when the output current > (Pr.06-71 + 0.1 A).
Manual When Pr.06-73=1 or 2, uC is a “Fault”. You must reset manually.
Reset condition Immediately reset
Record When Pr.06-73=1 or 2, uC is a “Fault”, and the fault is recorded.
Cause Corrective Actions
Motor cable disconnection Troubleshoot the connection between the motor and the load.
Improper setting of low-current
protection
Reset Pr.06-71, Pr.06-72 and Pr.06-73 to proper settings.
The load is too low.
Check the load status.
Check if the motor capacity matches the load.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
31
EEPROM read error
(cF2)
Internal EEPROM cannot be read.
Action and Reset
Action level Firmware internal detection
Action time cF2 acts immediately when the drive detects the fault.
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Immediately reset
Record Yes
Cause Corrective Actions
Internal EEPROM cannot be read.
Press RESET key. If cF2 error still displays on the keypad, return to the factory
for repair.
Reset the parameter to the default setting. If cF2 error still displays on the
keypad, return to the factory for repair.
Cycle the power. If cF2 error still exists, return to the factory for repair.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
33
U-phase error
(cd1)
U-phase current detection error when power is ON.
Action and Reset
Action level Hardware detection
Action time cd1 acts immediately when the drive detects the fault.
Fault treatment parameter N/A
Reset method Power-off
Reset condition N/A
Record Yes
Cause Corrective Actions
Hardware failure
Cycle the power.
If the fault code still displays on the keypad, return to the factory for repair.
ID No. Display on LCM Keypad Fault Name Fault Descriptions
34
V-phase error
(cd2)
V-phase current detection error when power is ON.
Action and Reset
Action level Hardware detection
Action time cd2 acts immediately when the drive detects the fault.