BK4000

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The BK4000 centrifugal blower operates at 2800 RPM, delivers an impressive airflow of 4000 m³/h, has a noise level of 72 dB(A), and weighs 17 kilograms. Part of the BK EtherCAT Bus Couplers series by Beckhoff, it features IP44 protection, a 230V AC voltage rating, and is crafted with a galvanized steel impeller.

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Product Description:

The BK4000 EtherCAT Bus Coupler is a fieldbus interface device. It enables connection between EtherCAT and I/O terminals. It is engineered by Beckhoff for complex industrial automation applications.

The BK4000 EtherCAT bus coupler supports up to 64 bytes each for input and output. It handles up to 512 digital input or output signals. It also supports 32 analog input or output signals. The data transfer rate is set at 500 kbaud. The device is configured through the KS2000 software interface. The BK EtherCAT bus coupler requires 24 V DC power input. The power input allows a tolerance of minus 15 to plus 20 percent. The input current is 70 mA plus one-fourth of total K-bus current. The total input current does not exceed 500 mA. The K-bus power supply delivers up to 1750 mA. This allows operation of connected terminals without external power. The power contacts handle up to 24 V DC and 10 A. The terminal system operates in distributed automation environments. It offers fast and efficient I/O signal mapping. The bus coupler allows modular expansion using I/O terminals. It helps simplify wiring in automation systems. The system layout supports fast installation in control cabinets. The unit is perfect for compact, high-speed communication setups.

The BK4000 EtherCAT bus coupler supports real-time data exchange. It provides stable performance in distributed control systems and its design offers simple connection and reliable signal processing. The product supports scalable automation system designs. The coupler uses LiYCY 3 × 2 × 0.22 mm² data cable. It includes two D-sub 9-pin connectors for bus communication. These connectors are screened and include a vibration lock. This ensures secure connection in industrial environments.

Analog Peripheral Signals
32 inputs/outputs
Bus Interface
2 × D-sub 9-pin (screened with vibration lock)
Configuration
Via KS2000
Current Supply K-bus
1750 mA
Data Transfer Medium
LiYCY 3 × 2 × 0.22 mm²
Data Transfer Rate
500 kbaud
Digital Peripheral Signals
512 inputs/outputs
Input Current
70 mA + (total K-bus current)/4, max. 500 mA
Max. Number of Bytes Fieldbus
64 bytes input, 64 bytes output
Mounting
Horizontal or Vertical
Power Contacts
Max. 24 V DC / max. 10 A
Power Supply
24 V DC (±15% / +20%)
Protection Class
IP44
Temperature Range
-20°C to +60°C

Frequently Asked Questions about BK4000:

Q: What is the data transfer rate supported by the BK4000 coupler?

A: The BK4000 supports a fixed data transfer rate of 500 kbaud. This enables rapid communication in EtherCAT fieldbus environments.

Q: What input voltage is required to power the BK4000?

A: The BK4000 operates on 24 V DC input. It accepts a voltage tolerance range from -15% to +20%.

Q: How many digital signals can BK4000 handle?

A: The BK4000 supports up to 512 digital inputs or outputs. It also handles up to 32 analog signals.

Q: What connector type is used in the BK4000 coupler?

A: The BK4000 features two 9-pin D-sub connectors. These are shielded and include vibration locks for industrial use.

Q: What is the current supply capacity of the BK4000’s K-bus?

A: The K-bus in BK4000 delivers up to 1750 mA. It powers connected terminals without requiring external power.


Internal Product Review

  • ‘‘The BK4000 supports fast EtherCAT-to-I/O terminal communication in modular systems. Its 500 kbaud transfer rate ensures reliable signal mapping in distributed control. The unit includes screened D-sub connectors for stable data handling. It operates on 24 V DC with support for 1750 mA K-bus output.’’

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