Dear Sir,

As we have Proface make HMI unit.
GP_4301 TW Model: 138707C005655

The display is graphic is blinking when the machine is running. When the machine not run the display graphic is stable.

Please advise.

Regards
Rakesh

 

Hi Rakesh,

You can check supply voltage at HMI terminals during blinking condition. Generally I have seen that, it happens due to voltage drop at HMI terminals.

Regards
Jenish.

 

Would also suggest that there may be some stray EMI which may be affecting the HMI power supply. Common mode noise could also be an issue based on grounding, and the machine running may be raising the ground potential and/or a ground loop.

Cheers from: Jeremy Pollard, CET The Caring Canuckian!
Crisis, necessity, change