BK3100
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The Beckhoff BK3100, part of the BK EtherCAT Bus Couplers series, operates with a 24 V DC power supply and supports up to 64 bus terminals. It achieves automatic data transfer rates up to 12 Mbaud. The unit weighs approximately 170 grams and conforms to IP20 protection rating with variable installation positions.
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Product Description:
The BK3100 PROFIBUS Bus Coupler from Beckhoff is designed for reliable fieldbus communication in industrial automation. It has an operating temperature of 0 to 55°C and can store between -25 and 85°C. The unit runs stably at up to 95% relative humidity without condensation. Electrical isolation to 500 V is offered between the power contact, supply voltage, and fieldbus.
The BK3100 bus coupler is about 170 g and has an IP20 protection rating with adjustable installation positions. It is in accordance with vibration and shock resistance requirements of EN 60068-2-6 and EN 60068-2-27. Input current is rated at 70 mA plus a portion of the K-bus current, a maximum of 500 mA. Power contacts support a maximum of 24 V DC and up to 10 A current. The BK3100 bus coupler employs a power supply of 24 V DC with a -15% to +20% tolerance. The start current is 2.5 times the continuous current for safe system operation. The coupler suggests a fuse rating of 10 A or lower for adequate circuit protection. The supply of current by the K-bus is up to 1750 mA to serve connected terminals. The coupler housing is constructed using polycarbonate material. Its terminal housing is compact and features built-in signal LEDs for simple status monitoring.
The BK3100 bus coupler is mounted securely on a 35 mm DIN rail as per EN 60715 with a lock. The side-by-side mounting system employs a double slot and key connection for mounting. Conductor cross-sections range from 0.08 to 2.5 mm² for solid and flexible wires and 0.14 to 1.5 mm² for ferrules. The required stripping length is maintained between 8 to 9 mm. EMC immunity and emission are guaranteed in accordance with EN 61000-6-2 and EN 61000-6-4 standards.
Frequently Asked Questions about BK3100:
Q: Why is a fuse rating of 10A recommended for the BK3100?
A: The recommended 10A fuse rating ensures adequate protection against overcurrent situations, safeguarding the bus coupler and connected equipment from potential damage.
Q: How does the BK3100’s EMC immunity help in industrial environments?
A: The EMC immunity guarantees reliable operation in environments with electromagnetic interference, complying with EN 61000-6-2 for immunity and EN 61000-6-4 for emissions.
Q: How does the K-bus current supply up to 1750mA support the BK3100?
A: The K-bus current supply supports up to 1750mA, enabling efficient power delivery to connected terminals and ensuring reliable communication in complex automation systems.
Q: How does the BK3100’s 24V DC power supply with tolerance enhance flexibility?
A: The 24V DC power supply with a -15% to +20% tolerance allows the BK3100 to operate within a wide range of voltage fluctuations, ensuring stable performance in diverse environments.
Q: Why is a start current of 2.5 times the continuous current used in the BK3100?
A: The start current of 2.5 times the continuous current ensures smooth power-on operations and helps to prevent damage to the coupler during startup.
