Hello,

I was wondering if a faulty or dead speed reference input in a Yaskawa SigmaII SGDH-02 servopack was possible ? I am supplying 5V to it and SigmaWin won't mention "Speed Reference Input" nor a value. I tried to reset, redo or exchange anything I thought of and my conclusion is :

  • servopack and motor jog fine using Sigmawin,
  • power, encoder, data cables are fine,
  • encoder outputs (same cable) from the servopack are fine.


Is there any chance it would be a replaceable 2-cents piece inside the servopack ? or did I miss the obvious "ignore speed reference input" parameter ? I certainly hope so.

Thank you very much,
Julien