Beckhoff KS31 2 Series Manual page 27

Terminal point No.
Input 1+ 1
Input 1- 2
GND 3
Shield 4
Input 2+ 5
Input 2- 6
GND 7
Shield 8
Power contacts connected to the next terminal
In hardware version 01 or higher, two power contacts are connected to the next terminal. However, they are
not used by the KL31x2.
Please be aware of this when you update from hardware version 00.
The hardware version of your terminal is indicated by the serial number [} 7], which is printed on the side of
the terminal.
KL31x2/KS31x2
Connection for
+ input channel 1
- input channel 1
Internal ground (internally connected to terminal point 7)
PE contact (internally connected to terminal point 8)
+ input channel 2
- input channel 2
Internal ground (internally connected to terminal point 3)
PE contact (internally connected to terminal point 4)
NOTE
Version: 2.6.0
Mounting and wiring
27