Basic information
BK7500
13
Electrical data
The SERCOS coupler BK7500 and BK7510 differ by virtue of their capacity
levels. The following data distinguishes between a standard and an
economy variant (BK7500 and BK7510). Compatability with the other
SERCOS components is guaranteed in any case. Contrary to the standard
bus coupler, the economy variant is limited of the number of I/O´s. Thus,
there is no possibility of connecting inputs and outputs other than digital
ones. The following table lists an overview of all data:
Technical data
Beckhoff SERCOSCoupler BK7500
Supply voltage
24 V, - 15% +20%
Input current
105 mA typ.
900 mA max.
K bus supply current up to
1.75 A max.
Potential isolation
500 Vrms (K-bus / peripheral voltage)
Number of bus terminals
64
Digital peripheral signals
256 inputs and outputs
Analog peripheral signals
128 inputs and outputs
Peripheral bytes
512 input byte and 512 output byte
Configuration
Via SERCOS Master or KS2000
Fieldbus medium
Fibre optic Z1100
Plug connection
F-SMA-Norm IEC 872-2 Z1003 for Z1100
Baud rate
2 or 4 Mbaud ( 8 and 16 Mbaud in preparation)
Voltage of the power contact
24V DC / AC
Power contacts current
drawn
10 A
Electric strength
500 Vrms (power contact / supply voltage)
Typical weight
150g
Operating temperature
0°C ... +55°C
Storage temperature
-25°C ... +85°C
Relative humidity
95% without dew formation
Vibration/shock stability
According to IEC 68-2-6 / IEC 68-2-27
EMC-immunity. Burst / ESD
According to EN 61000-4-4 / EN 61000-4-2 limit value according to EN 50082-2-4
Installation location
Arbitrary
Protection class
IP20
Current consumption on the
K-Bus
For operation of the K-bus electronics, the bus terminals require energy
from the K-bus that is supplied by the bus coupler. Refer to the catalog or
the corresponding data sheets of the bus terminals for details of the K-bus
current consumption. In doing so, pay attention to the maximum output
current of the bus coupler that is available for powering the bus terminals.
Using a special power supply terminal (KL9400), power can be fed back
into the K-bus at any chosen point. If you wish to use a power supply
terminal, please contact Beckhoff’s technical support. .
