Connecting To Controller Message on Ruida HMI
Troubleshoot the "Connecting to Controller" message on a Ruida DSP laser control screen, including HMI connector checks, LED diagnostics, and 24VDC voltage testing.
Preface: This article covers some scenarios if you get the "Connecting to Controller" message on the Laser Machine Control Screen. This is not the same procedure if you cannot send files from your computer, though the cause may be the same.
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