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BK1250 | Compact coupler between EtherCAT Terminals and Bus Terminals

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BK1250 | Compact coupler between EtherCAT Terminals and Bus Terminals

BK1250 | Compact coupler between EtherCAT Terminals and Bus Terminals

Run LED
E-bus Link/Act LED
Error LED
Bus Coupler power supply
Power contact
I/O run K-bus
I/O error K-bus
Power contact
Power contact
+24 V
0 V
+24 V
0 V
PE
BK1250 | Compact coupler between EtherCAT Terminals and Bus Terminals

BK1250 | Compact coupler between EtherCAT Terminals and Bus Terminals

The BK1250 is a Bus Coupler in a terminal housing for mixed use of EtherCAT Terminals and standard Bus Terminals in a bus station. Up to 64 Bus Terminals and one bus end terminal can be connected to a BK1250. The process image of the EtherCAT system is assigned automatically. Up to 255 Bus Terminals can be connected via the K-Bus extension.

 

Special features:

  • Compact design
  • mixed use of EtherCAT Terminals and Bus Terminals

 

The system and field supply, each 24 V DC, is provided directly at the BK1250. The attached Bus Terminals are supplied with the current required for communication from the supplied system voltage. The field supply is forwarded to the individual I/O components via the power contacts with up to 10 A. The Bus Terminals are parameterized via ADS through the KS2000 software. Alternatively, the controller (PLC, IPC) can configure the Bus Terminals via PLC function blocks.

Product status:

regular delivery

Product information

Technical dataBK1250
Number of Bus Terminals64 (255 with K-bus extension)
Max. number of bytes fieldbus1024 byte input and 1024 byte output
Digital peripheral signals8,192 inputs/outputs
Analog peripheral signals256 inputs/outputs
Configuration possibilityvia KS2000 or EtherCAT (ADS)
ProtocolEtherCAT
Data transfer rates100 Mbit/s
Bus interfacevia E-bus contacts
Power supply24 V DC (-15%/+20%)
Input current70 mA + (total K-bus current)/4, 200 mA max.
Starting currentapprox. 2.5 x continuous current
Recommended fuse≤ 10 A
Current supply K-bus500 mA
Power contactsmax. 24 V DC/max. 10 A
Electrical isolation500 V (power contact/supply voltage/Ethernet)
Weightapprox. 55 g
Operating/storage temperature-25…+60°C/-40…+85°C
Relative humidity95%, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP20/variable
Approvals/markingsCE, UL, ATEX, IECEx
Ex markingATEX: II 3 G Ex ec IIC T4 Gc
IECEx: Ex ec IIC T4 Gc
Housing dataKL-12-8pin
Design formcompact terminal housing with signal LEDs
Materialpolycarbonate
Dimensions (W x H x D)12 mm x 100 mm x 68 mm
Installationon 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means ofdouble slot and key connection
Markinglabeling of the BZxxx series
Wiringsolid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-sections*: 0.08…2.5 mm²,
st*: 0.08…2.5 mm²,
f*: 0.14…1.5 mm²
Connection cross-section AWGs*: AWG28…14,
st*: AWG28…14,
f*: AWG26…16
Stripping length8…9 mm
Current load power contactsImax: 10 A

*s: solid wire; st: stranded wire; f: with ferrule

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