Electric control valve

2020-09-16View Original

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Does the feedback AI4-20mA signal of the electric control valve require a DCS card to provide 24V power?

Reply #22020-09-16

This post was last edited by tiger2010 on 2020-9-16 at 19:37. By checking the specifications in the manual, it can be seen that for most brands, whether the device is active or passive can be set via pins

Reply #32020-09-20

If it is the 4-20mA feedback signal generated by the electric control valve itself, no power supply is required； If the control valve uses a feedback signal generated by an accessory, it requires power supply.

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Electric control valve

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