The pump operation status signal on the DCS screen comes from the electrical distribution room, right? Does the DCS show green when the power switch is turned on?
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The pump operation status signal on the DCS screen comes from the electrical distribution room, right? Does the DCS show green when the power switch is turned on?
You’re right about the first question; for the second question, it depends on how you consider things when configuring your DCS. It varies from person to person.
Yes. Green means go, red means stop; this is probably the habit of most people in China. Secondly, regarding the valve feedback, yellow indicates a fault.
Generally, the auxiliary normally open contact of the relay that controls pump operation is used as the switch signal for the pump’s operating status in the DCS.
Yes! Generally, DCS systems use normally open contacts to indicate the on/off status; Hollyland uses 161 modules, while Zhejiang University Control Systems uses 362 cards
This color is determined primarily based on the process requirements; if the people on site are accustomed to using a certain color, then the programmers can use that color for programming
This post was last edited by lotos1987 on 2016-4-16 23:46. There are many ways to determine the operating status of a pump, and checking the status of the electrical cabinet is a common method. It changes color as long as the power switch is turned on, but there are also cases where fault detection causes it to change to another color. However, it is usually red when running and green when stopped.
Relays can be used, and frequency converters can be connected to the DCS; therefore, the operating status is usually obtained from the power distribution room. Normal operation is shown in green, while shutdown is shown in red
It’s not the case that when the circuit breaker is closed, the DCS shows that the motor is running. Generally, the auxiliary contacts of AC contactors are used to feed information to the DCS regarding the motor’s operating status; in some cases, the closed signal of a circuit breaker is used as the signal to permit the motor to start
The signal source comes from the power distribution room； Our company’s DCS is also turned on in green and off in red ； Yellow fault. :D:D:)
The pump operation signal comes from the power distribution cabinet, then goes to the instrument cabinet room, and from there the signal is sent to the DCS； As for the specific colors, green generally indicates operation, red indicates shutdown, and a power outage is indicated by IOP-