Chapter 14 Fault Codes and DescriptionsC2000 Plus 
 
ID*  Display on LCD Keypad  Fault Name  Fault Descriptions 
28 
 
Under current   
(uC) 
Low current detection 
Action and Reset 
Action condition  Pr.06-71 
Action time  Pr.06-72 
Fault treatment parameter 
Pr.06-73 
0: No function 
1: Fault and coast to stop 
2: Fault and ramp to stop by 2
nd
 deceleration time 
3: Warn and operation continue 
Reset method 
Reset condition 
Auto 
When Pr.06-73 = 3, uC is a “Warning”. The warning is 
cleared when the output current > (Pr.06-71+0.1A). 
Manual  When Pr.06-73 = 1 or 2, uC is a “Fault”. You must reset manually. 
Record  Reset immediately 
Active level  When Pr.06-71 = 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.