Periphery level, Bus terminals bus coupler fieldbus 24 v dc – BECKHOFF BK5200 User Manual
Page 10
Basic Principles
10
BK52x0
Electrical isolation
BK5200, BK5210:
3 potential groups:
Fieldbus
K-Bus
Peripheral level
The Bus Couplers operate by means of three independent potential
groups. The supply voltage feeds the K-Bus electronics in the Bus Coupler
and the K-Bus itself, which are electrically separate. The supply voltage is
also used to generate the operating voltage for the fieldbus.
Remark: All the Bus Terminals are electrically isolated from the K-Bus. The
K-Bus is thus electrically isolated from everything else.
BK5200, BK5210:
Structure of the potential
levels in the Bus Terminal
system
Periphery level
Bus Terminals
Bus Coupler
Fieldbus
24 V DC
K-Bus
LC5200:
The LC5200 does not provide electrical isolation from the fieldbus and
peripheral level. If the peripheral level nevertheless needs to have an
electrically isolated implementation, this can easily be achieved through the
use of isolating terminals (KL9xxx).