Regarding the DO cards of Zhejiang Zhongkong
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The DO cards from Zhejiang Zhongkong do not come with a 24V power output; if a 24V power supply is connected to them, will it have an impact on the cards? Let some expert answer this
The DO card’s output goes to the circuit board, and it is then the circuit board’s output that connects to the actuator. There are two types of circuit boards: those that provide power for output, and those that do not. For the latter type, it’s fine to connect a 24V power supply to the circuit board.
Use a relay? If a relay is used, then there’s no impact. I have something that needs to be modified – 24VDC needs to be connected to it. I saw that a relay is already available, so I plan to change it to a three-wire system
The circuit board has jumper settings; by selecting different jumper channels, switching can be achieved.
There is no impact; the DO cards from Zhejiang University’s Control System are identical, it’s just the wiring that differs, so there’s no effect