Beckhoff EtherCAT Coupler - EK1501
The EK1501 is an EtherCAT Coupler with multi-mode fiber-optic connection, designed to bridge the EtherCAT protocol at the fieldbus level and the EtherCAT Terminals. It converts Ethernet 100BASE-FX telegrams to E-bus signal representation. Featuring 2 multi-mode fiber-optic SC duplex connections, it supports connection lengths up to 2 km. It includes 3 ID switches for variable topology implementation and can manage up to 65,535 EtherCAT Terminals. The EK1501 has two SC duplex sockets and three hexadecimal ID switches, providing flexible network configuration. It operates on a 24 V DC system and field supply, delivering up to 5 V and 2 A to connected EtherCAT Terminals.
Specifications
| Part Number |
EK1501 |
| Category |
PLCs/Machine Control |
| Subcategory |
PLC Module/Rack |
| Data transfer medium |
Multi-mode glass fiber 50/125 µm (MM) |
| Distance between stations |
Max. 2000 m (100BASE-FX) |
| Number of EtherCAT Terminals |
Up to 65,534 |
| Type/number of peripheral signals |
Max. 4.2 GB addressable I/O points |
| Number of configurable IDs |
4096 |
| Protocol |
EtherCAT |
| Delay |
Approx. 1 µs |
| Data transfer rates |
100 Mbit/s |
| Bus interface |
2 x SC Duplex |
| Power supply |
24 V DC (-15%/+20%) |
| Current consumption from US |
130 mA + (∑ E-bus current/4) |
| Current consumption from UP |
Load |
| Current supply E-bus |
2000 mA |
| Power contacts |
Max. 24 V DC / Max. 10 A |
| Electrical isolation |
500 V (power contact/supply voltage/Ethernet) |
| Weight |
Approx. 190 g |
| Operating/storage temperature |
-25…+60°C / -40…+85°C |
| EMC immunity/emission |
Conforms to EN 61000-6-2 / EN 61000-6-4 |
| Relative humidity |
95%, no condensation |
| Vibration/shock resistance |
Conforms to EN 60068-2-6 / EN 60068-2-27 |
| Protection rating/installation position |
IP20 / Variable |
What our Experts Think
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A high-performance EtherCAT communication solution, the Beckhoff EK1501 EtherCAT Coupler connects EtherCAT networks through fiber optic technology for reliable industrial data transmission.
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Fiber-based communication improves signal integrity, making it ideal for longer cable distances, electrically noisy environments, and demanding automation applications.
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Designed for seamless EtherCAT integration, it works with Beckhoff I/O terminals to create flexible and scalable control systems.
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Compact DIN-rail mounting saves valuable cabinet space, supporting efficient machine design and clean industrial installations.
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Fast real-time communication supports demanding automation tasks, including motion control, robotics, manufacturing equipment, and process systems.
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Built for industrial reliability, the EK1501 provides a robust connection between EtherCAT networks and distributed I/O architectures.
Q&A
Q: What is the Beckhoff EtherCAT Coupler EK1501?
A: The Beckhoff EK1501 is an EtherCAT coupler that connects EtherCAT Terminal (EL series) I/O modules to an EtherCAT network using fiber optic communication.
Q: What are the key features of the EK1501?
A: It provides EtherCAT connectivity, supports fiber optic links, enables distributed I/O expansion, and integrates with Beckhoff automation systems.
Q: What is the EK1501 used for?
A: It is commonly used in industrial automation, machine control, remote I/O systems, and applications requiring reliable high-speed communication.
Q: Why use fiber optic EtherCAT communication?
A: Fiber optic connections offer long-distance transmission, electrical isolation, and improved resistance to electromagnetic interference.
Q: Is the EK1501 compatible with Beckhoff EtherCAT terminals?
A: Yes. It is designed to work with Beckhoff EL-series EtherCAT Terminals for flexible modular I/O configurations.
Q: What software supports the EK1501?
A: The EK1501 works with Beckhoff TwinCAT automation software for configuration, diagnostics, and system control.
Maintenance Tips
- Keep fiber optic connectors clean and protected from dust.
- Inspect EtherCAT and power connections regularly.
- Check LED status indicators for communication or fault warnings.
- Ensure proper DIN rail mounting and secure installation.
- Maintain recommended temperature and humidity conditions.
- Protect the module from vibration, moisture, and contaminants.
- Verify network configuration and backups periodically.
- Store spare modules in a clean, dry environment.
Damage 
Loss 
Theft 
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