PT81| B&R PT81 A/C Auto Temperature Control Relay Connector PT81

PT81| B&R PT81 A/C Auto Temperature Control Relay Connector PT81

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Product Description

PT81| B&R PT81 A/C Auto Temperature Control Relay Connector PT81

​
The general PLC can directly send the command to the control loop, but it may also be relayed by

the relay first. If the output of your PLC is 24VDC, but the picture drawn in your control loop needs

220VAC for the node, then you must add a relay to the PLC output, that is, the relay will act when the

command is issued. Let the node of the control loop be connected to the normally open or normally

closed point of the relay. This is also the choice of whether to use the relay depending on the situation.

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