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Specification & Description
| Specification | Description |
|---|---|
| Part Number | EL7201 |
| Manufacturer | Beckhoff |
| Product Type | Servomotor EtherCAT Terminal |
| Supply Voltage | 8 to 50 V DC |
| Output Current | 2.8 A rms |
| Peak Current | 5.7 A rms for 1 second |
| Rated Power | 170 W |
| Motor Holding Brake Output | 24 V (+ 6 %, - 10 %) |
| Motor Holding Brake Current | Max. 0.5 A |
| PWM Switching Frequency | 16 kHz |
| Current Controller Frequency | Double PWM switching frequency |
| Velocity Controller Frequency | 16 kHz |
| Diagnostics | Status, warning, errors and limits via LEDs |
| Power Loss | Typical 1.6 W |
| Current Consumption (E-bus) | Typical 120 mA |
| Current Consumption (24 V) | Typical 55 mA + holding brake |
| Storage Function | Supports NoCoeStorage function |
| Reverse Voltage Protection | Yes, through the body diode of the overvoltage protection device |
| Fusing | 24 V power supply 10 A, 50 V power supply 10 A |
| Electrical Isolation | 500 V (E-bus/signal voltage) |
| EtherCAT Cycle Times | Multiple of 125 µs |
| Configuration | No address setting required, configuration via TwinCAT System Manager |
| Weight | Approx. 60 g |
| Operating Temperature Range | 0°C to +55°C |
| Storage Temperature Range | -25°C to +85°C |
| Relative Humidity | 95%, non-condensing |
| Dimensions (W x H x D) | Approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm) |
| Mounting | On 35 mm mounting rail conforms to EN 60715 |
| Vibration/Shock Resistance | Conforms to EN 60068-2-6 / EN 60068-2-27 |
| EMC Immunity/Emission | Conforms to EN 61000-6-2 / EN 61000-6-4 according to IEC/EN 61800-3 |
| EMC Category | Category C3 - standard, Category C2, C1 - auxiliary filter required |
| Protection Class | IP20 |
| Installation Position | Various, see documentation for details |
| Approval | CE |
The Beckhoff EL7201 Servomotor EtherCAT Terminal is a state-of-the-art component designed to deliver high servo performance in a remarkably compact form factor. This terminal is engineered to facilitate fast and dynamic positioning tasks, making it an ideal choice for applications requiring precision and efficiency.
With its integrated resolver interface, the EL7201 ensures accurate feedback and control of permanent magnet-excited three-phase synchronous motors. The terminal operates on a nominal voltage range from 8 to 50 V DC and can handle an output current of 2.8 ARMS, suitable for a wide array of industrial applications.
One of the standout features of the EL7201 is its advanced control technology, which includes field-oriented current and PI speed control. This technology underpins the terminal's ability to support rapid and highly dynamic positioning tasks, which are essential in modern automated processes.
The EL7201 also boasts robust monitoring capabilities, with safeguards against overvoltage, undervoltage, overcurrent, and terminal temperature. Additionally, motor load is monitored through the calculation of an I²T model, ensuring maximum operational reliability.
For seamless integration into PC-based control systems, the EL7201 utilises EtherCAT, a high-performance system communication protocol, along with CAN-over-EtherCAT (CoE) as the application layer. This combination provides an ideal interface for sophisticated control technology.
The terminal's use of the latest power semiconductors minimises power loss and enables energy feedback into the DC link when braking. For ease of diagnostics and status monitoring, the EL7201 is equipped with 16 LEDs that indicate status, warning, error messages, and any active limitations.
Overall, the Beckhoff EL7201 Servomotor EtherCAT Terminal is a compact, powerful, and reliable solution for automating and enhancing the precision of industrial processes.
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Frequently Asked Questions
What type of motor can be connected to this servomotor terminal?
The servomotor terminal is designed for use with permanent-magnet-excited three-phase synchronous motors. It is particularly suitable for motors from the AM8100 and AM3100 series, ensuring high servo performance in a compact design.
Can this terminal be used for dynamic positioning tasks?
Yes, the servomotor terminal supports fast and highly dynamic positioning tasks thanks to its fast control technology, which is based on field-oriented current and PI speed control.
What kind of feedback system does this terminal support?
This terminal comes with an integrated resolver interface, which is used for motor feedback to ensure precise control of the motor position, speed, and torque.
What are the voltage and current specifications for this terminal?
The terminal operates with a supply voltage power range of 8 to 50 V DC and can deliver an output current of 2.8 ARMS.
How does this terminal ensure operational reliability?
Operational reliability is ensured through the monitoring of various parameters such as overvoltage, undervoltage, overcurrent, and terminal temperature. Additionally, motor load is monitored via the calculation of an I²T model.
What communication protocol does this terminal use?
The terminal utilises EtherCAT, a high-performance system communication protocol, along with CAN-over-EtherCAT (CoE) as the application layer, providing ideal interfacing with PC-based control technology.
Are there any specific accessories recommended for use with this terminal?
Yes, accessories such as the EL9576 brake chopper terminal and ZB85xx shield busbar with mounting rail holder are recommended for optimal performance and integration.
What kind of diagnostics does the terminal provide?
The terminal is equipped with 16 LEDs that indicate status, warning, and error messages, as well as any active limitations, providing clear diagnostics at a glance.
Can the terminal be used for regenerative braking?
Yes, the latest power semiconductors within the terminal minimise power loss and enable feedback into the DC link when braking, facilitating regenerative braking capabilities.
What is the weight and size of the terminal?
The terminal weighs approximately 60 grams and has dimensions that make it very compact, facilitating easy integration into various industrial setups.
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