Motor trip alarm using Hilscher MACSV system
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This post was last edited by Zirui on 2016-7-20 at 13:03. The motor has only one switch status indicator that sends a signal to the DCS: 1 for on, and 0 for off. What needs to be done now is that when the motor switches from on to off, an alarm should be triggered via a light sign, and this alarm should remain active; it will only be cleared after the alarm is manually dismissed. Triggers on the falling edge; no alarm under other conditions. How to do it?
Does the term \"light sign with alarm function\" refer to a physical alarm indicator light? It seems to be a power plant-related project. To meet what you mentioned, an HSDOWN can be used to detect the falling edge, an RS flip-flop can then be used to lock it in, and a reset button can also be added.
When the motor is switched from on to off, an illuminated sign gives an alarm that remains active; the alarm is cleared only after it is manually dismissed. Triggers on the falling edge; no alarm under other conditions. How to do it? ------------------------------------------------------------------------------------------------------------------------------------------------------------- Add a program in the control station: the falling edge of the motor operation signal is used to set the flip-flop, while a manual command is used to reset it