Chapter 13 Warning CodesC2000 Plus 
 
ID No.  Display on LCD Keypad  Warning Name  Description 
134 
 
Encoder low battery 
(EcLB) 
Communication encoder low battery 
Action and Reset 
Action condition  When the encoder battery power is lower than 3.1 V 
Action time  Immediate action 
Warning setting parameter  N/A 
Reset method  Cut off the power and replace the battery 
Reset condition  Replace the encoder’s external battery 
Record  No 
Cause  Corrective Actions 
Encoder low battery 
1.  Reset the fault, and replace the battery when the drive stops. 
2.  If you are not using the multi-turn position data, the encoder does not need 
the battery. You can set Pr.10-23 bit0 = 0 to disable the battery low voltage 
detection warning.