Installation and Wiring 
 
FPΣ User's Manual 
92 
6.7  Wiring the Communication Cassette 
The communication cassette is supplied with a communication connector, which has a screw-
type terminal block. 
 
 
NOTE
 
•  When removing the wire's insulation, be careful not to scratch the core wire. 
•  Do not twist the wires to connect them. 
•  Do not solder the wires to connect them. The solder may break due to 
vibration. 
•  After wiring, make sure stress is not applied to the wire. 
•  If the socket in the terminal block closes upon counter-clockwise rotation, 
the connection is wrong. Disconnect the wire, check the terminal hole, and 
then re-connect the wire. 
 
OK
 
•  If two wires are connected to the plus and minus terminals of the RS485 
port of FPG-COM4, use wires of the same cross-sectional area (0.5–
0.75mm
2
). 
Accessory communication connector 
If additional connectors are needed, use the communication connector manufactured by 
Phoenix Contact. 
 
Item  Description 
Number of pins 
5 
Manufacturer 
Phoenix Contact Co. 
Model 
MC1,5/5-ST-3,5 
Product no. 
1840396