The FISHER DVC2000 LCD screen shows an opening degree that is the opposite of the actual opening degree of the valve on site – how to adjust this?
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The DCS value and the opening degree of the on-site valve are the same; it’s just that the display on the liquid crystal screen of the valve and the actuator shows the opposite value. I checked the manual just now, but it doesn’t mention how to adjust the display so that it shows the correct opening degree. How can I adjust the liquid crystal screen to show the correct opening degree in line with that of the actual valve? ? ?
My post got buried like this
It can’t sink to the bottom! ! ! Some expert please reply
Just add a NOT gate to the DCS configuration
I haven’t encountered it before; there is just an option to choose between forward and reverse in the parameter settings, so you should take a close look at those settings.
I just saw that it wasn’t mentioned in the instructions. Does anyone have a more complete version? It’s not written there in the Baidu search results