Which model of digital terminal board should I choose in the following situation?
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The motor wires on-site are 220VAC; therefore, digital output signals with dry contacts need to be provided by the cabinet. The card used in the cabinet is XP367. I would like to ask the experts here: what type of relay terminal board with digital output should I use?
Is this Zhejiang University Zhongkong’s system?
If it’s for central control, then TB367GPRU should work fine. Also, what kind of wire is used for the motor has nothing to do with this.
Yes, it’s part of the central control system. But the wires coming from the field are 220V, so a 220V relay is required
This sends a dry contact signal from the indoor area to the motor on site, enabling the backup pump to start automatically when the oil pressure of the oil pump drops; however, the wire running from the terminal block in the field wiring cabinet to the cabinet is 220V
If it is a dry contact, it is recommended to add a relay driven by DC24V to control 220V AC, which will achieve the desired result
This post was last edited by saaaa on 2018-11-29 at 15:24: TB367GPRU, with a 220V relay added as a contact. Correction: The XP562GPRU itself provides both dry and wet connection options, which can be selected using jumpers.
The XP367 card, when used in conjunction with the terminal block TB367-GPRU, enables the creation of passive normally open and normally closed contact output circuits； Used in conjunction with terminal block TB367R-GPR, it enables circuits for passive normally open and normally closed contact outputs as well as active normally open contact outputs ； Used in conjunction with the TB367-GPRPU terminal block, it enables an active normally open contact output circuit.
You need to take a look at the electrical control schematic