· Use two sets of fully isolated power supply system power, to ensure that the relay in the switch will have an impact on the signal circuit and can be freely switched to high level drive mode or low level drive mode. Trigger Current is 5mA.
· With a jumper cap, you can choose a low level control or a high level control, allowing the relay module to adapt to more occasions.
· Even if the control line is broken, the relay won't actuation.
· All interfaces can be directly connected through the terminal block, which is very convenient.
Relay version: 5v-24v
1. DC+: Connect the positive pole of the power supply
2. DC-: connected to the negative pole of the power supply
3. IN1-IN4: According to the setting of each way, the corresponding relay can be controlled by high or low level.
1. NO1--NO4: The relay normally open interface, the relay is suspended before the suction, and it is short-circuited with COM after the suction.
2. COM1--COM4 relay common interface
3. NC1--NC4: The relay normally closes the interface, and the relay is shorted to COM before the suction is closed.