Beckhoff EL5101 Encoder Interface Terminal

The Beckhoff EL5101 is a high-performance EtherCAT Terminal designed to interface directly with incremental encoders supporting RS422 differential or TTL single-ended signals. Operating at frequencies up to 1 MHz, the EL5101 offers exceptional precision with 4-fold quadrature decoding, a 32-bit counter, and advanced microincrement functionality. Integrated features such as frequency and period measurement, latch/gate control, and distributed clocks enable precise position acquisition and real-time synchronization.

With built-in support for encoder profiles and timestamping on signal edges, the EL5101 is ideal for dynamic axis control and motion-critical applications in automation systems.

Technical Specifications

Manufacturer: Beckhoff
Part Number: EL5101 Beckhoff
Product Type: Incremental Encoder Interface
Channels: 1
Supported Signals: RS422 differential, TTL single-ended
Encoder Connection: A, B, C + inverted signals
Additional Inputs: 1x status input (5 V), 1x gate/latch input (24 V)
Counter: 16/32 bit switchable
Nominal Voltage: 24 V DC (-15%/+20%)
Encoder Supply: 5 V DC, max. 0.5 A (from 24 V power contact)
Limit Frequency: 1 MHz (4 million increments/s with 4x evaluation)

Measurement & Synchronization

Resolution: 1/256 microincrements
Frequency/Period Measurement: Yes, 100 ns resolution
Distributed Clocks Support: Yes
Timestamping: Last incremental edge captured
Special Functions:
– Wire break detection
– Save, lock, set counter
– Pulse generator
– Encoder profile support

Electrical & Environmental

Electrical Isolation: 500 V (E-bus/field)
Current Consumption (E-bus): Typ. 130 mA
Current Consumption (Power Contacts): Typ. 100 mA + encoder load
Protection Rating: IP20
Operating Temperature: -25…+60°C
Storage Temperature: -40…+85°C
Relative Humidity: 95%, no condensation
Vibration/Shock Resistance: EN 60068-2-6 / EN 60068-2-27
EMC Standards: EN 61000-6-2 / EN 61000-6-4

Mechanical & Wiring

Dimensions (W x H x D): 24 mm x 100 mm x 68 mm
Weight: Approx. 100 g
Mounting: 35 mm DIN rail (EN 60715)
Wiring Style:
– Solid: 0.08–2.5 mm²
– Stranded: 0.08–2.5 mm²
– Ferrule: 0.14–1.5 mm²
AWG: 28–14
Stripping Length: 8–9 mm
Current Load (Power Contacts): Max. 10 A

Compliance & Certifications

Approvals: CE, UL, CCC, ATEX, IECEx
ATEX: II 3 G Ex ec IIC T4 Gc
IECEx: Ex ec IIC T4 Gc

Key Features

✅ Direct Encoder Interface: Supports RS422 & TTL incremental signals.

✅ High-Speed Performance: 1 MHz input frequency with 32-bit counter.

✅ Precision Timing: Distributed clocks, timestamping, and microincrement capability.

✅ Motion Control Ready: Encoder profile support and frequency measurement.

✅ Robust Diagnostics: Wire-break detection, latch/gate logic, and LED status.

📦 Buy Beckhoff EL5101 Encoder Interface – 1-Channel, RS422/TTL, EtherCAT

At Drive Outlet Megastore we offer unbeatable Beckhoff EL5101 prices.

Ideal for fast, high-resolution motion control systems. This encoder terminal delivers exceptional speed and accuracy for advanced EtherCAT-based automation.

Contact us for stock availability, bulk pricing, or application-specific support.