Beckhoff BK1120

Basic principles
BK11x0, BK125032 Version: 4.1
4.5.2 Connection BK1120 and BK1150
Fig.22: BK1120, BK1150 Connection
Table1: Connection
Terminal point Description
Name No.
+24 V Us 1 Power supply for Bus Coupler and E-bus electronics
+24VUp 2 Power supply for power contacts (internally connected to terminal point 6)
0 VUp 3 Power supply for power contacts (internally connected to terminal point 7)
PE 4 PE connection (internally connected to terminal point 8)
0 V Us 5 Power supply for Bus Coupler and E-bus electronics
+24 VUp 6 Power supply for power contacts (internally connected to terminal point 2)
0 VUp 7 Power supply for power contacts (internally connected to terminal point 3)
PE 8 PE connection (internally connected to terminal point 4)