The BECKHOFF EL2521 is an EtherCAT Terminal featuring a single-channel pulse train output designed for incremental encoder simulation. This compact I/O module communicates directly over the EtherCAT network, providing precise frequency generation and differential output signals via RS422. It is engineered for industrial automation tasks that require accurate position simulation, frequency output control, and integrated travel distance management within a modular control system.
Equipped with support for distributed clocks, the terminal ensures synchronous and time-critical signal generation. It processes input signals through two channels for control and feedback functions, while the output stage delivers RS422-compatible differential pulse trains up to a base frequency of 500 kHz. Housed in a standard DIN-rail-mountable enclosure, the device integrates seamlessly into BECKHOFF terminal segments using spring-loaded connection technology.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Exact Model | EL2521 |
| Product Type | EtherCAT Terminal |
| Number of Outputs | 1 channel (2 differential outputs A, B) |
| Number of Inputs | 2 (+T, +Z) |
| Load Type | Min. 120 ohm |
| Output Specification | RS422, differential |
| Signal Voltage | RS422 level |
| Max. Output Current | 50 mA (RS422 specification, short-circuit proof) |
| Base Frequency | 0 to 500 kHz (50 kHz default) |
| Resolution | Max. 15 bit (16 bit + sign) |
| Step Size | 10 mHz |
| Distributed Clocks | Yes |
| Bit Width in Process Image | 14 byte output, 8 byte input |
| Configuration | Via controller |
| Current Consumption E-Bus | Typ. 280 mA (load-dependent) |
| Electrical Isolation | 500 V (E-bus / field potential) |
| Connection Technology | Spring actuation by screwdriver (solid, stranded, and ferrule conductors) |
| Connection Cross-Section (Solid / Stranded) | 0.08 to 2.5 mm² (AWG 28 to 14) |
| Connection Cross-Section (Ferrule) | 0.14 to 1.5 mm² (AWG 26 to 16) |
| Stripping Length | 8 to 9 mm |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
| Net Weight | Approx. 50 g |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Protection Rating | IP20 |
| Approvals | CE, UL, ATEX (II 3 G Ex nA IIC T4 Gc) |
| Country of Origin | Germany |
Global Express Shipping
Returns & Warranty
Manufacturer: BECKHOFF
Product No.: EL2521
Country of origin:Germany
Product Type: EtherCAT Terminals
Payment: T/T, Western Union
Weight: 50g
Dimensions: 12 x 100 x 68 cm
Shipping port: Xiamen
Warranty: 12 months
The BECKHOFF EL2521 is an EtherCAT Terminal featuring a single-channel pulse train output designed for incremental encoder simulation. This compact I/O module communicates directly over the EtherCAT network, providing precise frequency generation and differential output signals via RS422. It is engineered for industrial automation tasks that require accurate position simulation, frequency output control, and integrated travel distance management within a modular control system.
Equipped with support for distributed clocks, the terminal ensures synchronous and time-critical signal generation. It processes input signals through two channels for control and feedback functions, while the output stage delivers RS422-compatible differential pulse trains up to a base frequency of 500 kHz. Housed in a standard DIN-rail-mountable enclosure, the device integrates seamlessly into BECKHOFF terminal segments using spring-loaded connection technology.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Exact Model | EL2521 |
| Product Type | EtherCAT Terminal |
| Number of Outputs | 1 channel (2 differential outputs A, B) |
| Number of Inputs | 2 (+T, +Z) |
| Load Type | Min. 120 ohm |
| Output Specification | RS422, differential |
| Signal Voltage | RS422 level |
| Max. Output Current | 50 mA (RS422 specification, short-circuit proof) |
| Base Frequency | 0 to 500 kHz (50 kHz default) |
| Resolution | Max. 15 bit (16 bit + sign) |
| Step Size | 10 mHz |
| Distributed Clocks | Yes |
| Bit Width in Process Image | 14 byte output, 8 byte input |
| Configuration | Via controller |
| Current Consumption E-Bus | Typ. 280 mA (load-dependent) |
| Electrical Isolation | 500 V (E-bus / field potential) |
| Connection Technology | Spring actuation by screwdriver (solid, stranded, and ferrule conductors) |
| Connection Cross-Section (Solid / Stranded) | 0.08 to 2.5 mm² (AWG 28 to 14) |
| Connection Cross-Section (Ferrule) | 0.14 to 1.5 mm² (AWG 26 to 16) |
| Stripping Length | 8 to 9 mm |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm |
| Net Weight | Approx. 50 g |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Protection Rating | IP20 |
| Approvals | CE, UL, ATEX (II 3 G Ex nA IIC T4 Gc) |
| Country of Origin | Germany |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
A linear axis should be proven mechanically before aggressive tuning begins. This commissioning workflow covers scaling, direction, limits, homing, STO, low-speed tests, and evidence-based tuning for...
Interposing relays protect PLC and DCS interfaces by separating voltage domains, matching output capacity to field loads, and making faults easier to isolate. This guide explains selection,...
Il filtraggio dell’input può stabilizzare i dati del PLC, ma un’eccessiva attenuazione ritarda gli allarmi e maschera i cambiamenti del processo. Scopri come diagnosticare il rumore, scegliere filtri...
I sistemi di azionamento SCR e PWM regolano i motori CC a spazzole in modi diversi. Questo confronto analizza la qualità della coppia, l’intervallo di velocità, l’inversione, la frenatura, il rumore...
Gli inverter industriali sintetizzano corrente alternata controllabile da un bus in corrente continua tramite la commutazione e il filtraggio dei semiconduttori. Questa guida illustra i ponti H, la...
Il controllo della forza consente a un robot di adattarsi al contatto invece di seguire esclusivamente la posizione. Questa guida confronta gli approcci al rilevamento, le modalità di controllo, i...
