Under what circumstances do the signals indicating that the valve is in the open or closed position exist simultaneously?
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This post was last edited by *aodouzi on 2018-9-26 20:40. Under what circumstances do the signals indicating that the valve is fully open and fully closed for the (DI) signal appear at the same time?
Usually, only two-position on/off valves come equipped with a feedback indication showing whether the valve is fully open or fully closed.
In practical work, under what circumstances can switch feedback exist simultaneously?
When it’s broken: L. And how is there a switch for the AI signal? When the switch is in the proper position, it becomes a DI signal.
This happens when it breaks.
1. For position limiting, one contact is normally open and the other is normally closed; when the normally open contact is activated； 2. Both are connected to normally closed contacts ； 3. When both are in the normally open state, 24V is fed back to the control system simultaneously
4. Incorrect software address definition； 5. The address link for the screen controls is incorrect
Will this occur in actual on-site work? Rule out configuration issues