The wires are generally color coded, the ends should be crimped with 8mm diameter crimps. This connection is valid for sensor cable, power cable, Modbus cable, 4-20 mA cables. 


To connect the wires, insert the crimped end in the correct port on the terminal block till it clicks firmly in place and cannot be pulled out when tugging on the wires (do not tug on the wires with a lot of force as that may damage the terminal block).

To disconnect the sensor wires, press the white tab for that specific port with a small flat screw driver as shown in picture below where the user is removing wire connected to port 1. 

While pressing on the white part, pull out the cable connection with the other hand as shown in the picture below.