M8 does not work on RMHV3.1 - DDCSV3.1 Standalone CNC Motion Controller - Digital Dream Technology support
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M8 does not work on RMHV3.1

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Landlord
Posted at 2022-3-5 07:31:43 | Only Author Replies reward |Positive sequence Browse |Read mode
M8 does not work on RMHV3.1.  I found another person having the exact same issue on this forum, but no answer was listed.  My firmware version is 2018-07-05-95.  The front of my controller says it's RMHV3.1 but the front and back actually match the V2.1.

Please help.  My machine is down as I can't turn the torch on.

Thank you,
Jeff
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Sofa
 Author| Posted at 2022-3-6 09:17:52 | Only Author
Solved it.  I was using an automotive 12V relay and for some reason the controller would not connect the M8 to ground.  I changed to a 12V Micro relay and it works as expected.
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