DCS pump shutdown operation
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In actual production, the DCS can be used to stop the pump via a computer; is this addition necessary? Will it increase the controller load?
It is necessary; it comes in handy when an emergency occurs on site, and it won’t affect the system. That’s my personal opinion
It’s very useful in emergencies! A few digital switches will not add much load either.
It is necessary, absolutely necessary – the controller won’t see much increase in load just from adding one pump-stop operation!
Just provide an open-circuit electric shock for the electrical engineering field.
Which types of operations, when added, will increase the controller’s load? Such as interlocking, trends, alarms?
It is absolutely necessary; the pump itself may encounter various situations during operation, which could lead to cascading shutdowns. This approach can effectively ensure the safety and reliability of the motor. The cost of the motor may not be much higher than that of DCS systems (I am familiar with Emerson’s products) and other related electrical instruments, but considering the possibility of serious accidents occurring throughout the plant due to problems in a particular workshop, it is a very worthwhile investment
Interlocks, trends, alarms, frequency conversion, and the like all increase the load, but these factors are taken into account from the very beginning of the design. Moreover, the safety of a good DCS system takes all those loads into consideration
The pumps involved in the interlock system are controlled by the interlock system; it is recommended not to operate other pumps via DCS, as on-site operation is more favorable for safety. It is necessary to display the status signals of the pump on the DCS screen.