BECKHOFF BK4000 - Manual (Page 12)

Basic information
12 BK4000
Electrical data
The InterBus couplers differ by virtue of their capacity levels. The electrical
data specific to the field bus is listed in this chapter. The following data
differs depending on whether a standard or an economy variant is meant
(BK4000, BK4500 and BK4010). Contrary to the standard variant, the eco-
nomy variant limits the number of I/O points. Thus, there is no possibility of
connecting inputs and outputs other than digital inputs and outputs.
Technical data InterBus-coupler BK4000/BK4500 Economy -coupler BK4010
Power supply 24 V, - 15% + 20%
Input current 105 mA typ. ( 30 digital inputs- / 20 outputs ) 85 mA typ.
900 mA max. 300 mA max.
K-Bus output current 1750 mA max. 500 mA max.
Potential isolation 500 Vrms (K-bus / power supply to periphery)
Number of bus terminals 64 including potential feed terminals and end terminal
Digital peripheral signals 256 inputs and outputs 256 inputs and outputs
Analog peripheral signals 32 inputs and outputs#1 --
Peripheral bytes 64 input bytes and 64 output bytes 32 input and 32 output bytes
Configuration interface available for KS2000
Baud rates 500 KBaud in conformity with the standard
Power contact voltage 24V DC / AC
Power contact current load 10 A
Dielectric strength 500 Vrms (Power contact / InterBus signal voltage), incoming interface
Typical weight 170g
Operating temperature 0°C ... +55°C
Storage temperature -20°C ... +85°C
Relative humidity 95%, no condensation
Vibration / shock strength in conformity with IEC 68-2-6 / IEC 68-2-27
EMC strength,. Burst / ESD in conformity with EN 61000-4-4/ EN 61000-4, limit EN 50082-2-4
Installation position any
Type of protection IP20
Current consumption on the
K-Bus
For operation of the K-Bus electronics, the bus terminals require power
from the K-Bus which the bus coupler supplies. Refer to the catalog or the
corresponding data sheets of the bus terminals for details of the current
consumption of the K-Bus. At the same time, pay attention to the maximum
output current of the bus coupler that is available for powering the bus ter-
minals. By means of a special power supply terminal, an infeed into the K-
Bus is possible at any point. Please consult Beckhhoff’s technical support
for details of how to use a power supply terminal.