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Home > Spindles & ATCs > Technical - EM61 VFD > VFD Error Codes > Err20
Err20
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PID Feedback Loss Refer to the value of PID feedback value less than value of P4.0.18 and duration of P4.0.19
  • Check whether PID Feedback Signal is normal
  • Check whether the value set by parameter P4.0.18 and P4.0.19 meets actual running conditions;

 

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