24V power supply interference issue
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I have a question for everyone: Is it possible to have a 24V voltage and a signal line without power in the same multi-core cable, where one of the core wires carries both the signal without power and the 24Vdc voltage? Is there any interference? And the one with 220
It’s fine to use it with 24V DC power, but in theory, it’s not allowed to be used with 220V AC power
What was said upstairs is correct: communication causes significant interference with analog signals. Therefore, a multi-core cable cannot simultaneously carry both signal lines and 220VAC power lines, and these two types of wires cannot be placed in the same cable tray. 24VDC wires cause relatively less interference with signals, but they still cannot share the same multi-core cable as analog signals; however, they can be placed in the same cable duct.
Is it okay to use the same multi-core cable for communication with the valve? The valve responds without electricity
If it’s possible to separate them, it’s better not to use the same multi-core cable. Cables for 220V must definitely not be used together, and when 220VAC cables are laid alongside cables of other instruments that are more vulnerable, isolation or proper spacing is required