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Renishaw RGH24 compatibility

Hello, 

I have an LM10IC13BBB10F00 (datasheet attached) differental linear magnetic quadrature encoder which I'm using a NI USB 6211 to read the positive channel (A, B) with. It works well even though I do not get the full differential capability the 6211 has to offer. I would like to use the USB 6211 to read the encoder signal from a linear optical encoder, specifically the RGH24H15F30A. Connecting the RGH24 to the 6211 in the same manner, I am not able to read any signal through NIMAX.

 

Could someone help me troubleshoot this? A bit more info follows. 

  • The encoder scale is on the bottom of a Prior Scientific XY stage
  • The status LED on the RGH24 reads green throughout the entire range of the scale
  • At both slow speeds and fast speeds the LED remains green.
  • To read the signal I have used 2 different NI USB 6211s. Both read the LM10 encoder fine but plugging the RGH24 into the same digital inputs results in no signal
  • I am using the counter tab of NI MAX to test whether I am receiving signal or not. With the mode set to edge counting and the Edge source set to PFI0 where my A input is wired. When running this the counter value continually reads 0 even though the stage is moving. 

Thank you for the help.

 

Best,

Alex

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Update:

Hooked the encoder up to an o-scope and turns out it is malfunctioning. Thanks for any thought devoted to this.

 

 

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