Beckhoff BK3 0 Series

Mounting and wiring
BK3xx026 Version: 4.3.0
3.4.4 Power supply
Supply of Bus Coupler/Bus Terminal Controller and Bus Terminals (Us)
3.4.4.1 BKxx00, BKxx10, BKxx20 and LCxxxx
The Bus Couplers/Bus Terminal Controllers require an operating voltage of 24V
DC
.
The connection is made by means of the upper spring-loaded terminals labelled 24V and 0V. This supply
voltage is used for the electronic components of the Bus Coupler and Bus Terminal Controllers and (via the
K-bus) the electronic components of the Bus Terminals. It is galvanically separated from the field level
voltage.
Fig.14: Power supply connections for BKxx00, BKxx10, BKxx20 and LCxxxx