Everyone, do you think this change works?
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There is an electric door that was originally supposed to be activated and stopped using 5-second pulse signals from the DCS system. However, during testing it was found that the door wouldn’t open or close fully when pulse signals were sent, as the door itself did not have a self-locking mechanism. To ensure the proper operation of the electric door, it is necessary to convert the pulse signals from the DCS into continuous signals. However, I am concerned about one issue: when pulse signals are used, the relay contacts remain charged for a short period of time. If continuous signals are used, the relay contacts will remain charged for a longer duration. Given that the voltage in the relay contact circuit is 380V, do you think this modification is feasible? If that’s the case, is there any danger?
During debugging, you can try gradually increasing the time to see if it opens and closes properly. Furthermore, considering the production process requirements regarding whether the electric door needs to be opened and closed completely, if such full opening and closing is necessary, position sensing components can be added to feed back signals to the DCS, allowing the program to be adjusted accordingly.