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Beckhoff EL2521

EtherCAT Terminal, 1-channel pulse train output, incr. enc. simulation, RS422, 50 mA

MPN: EL2521
Category: EL2xxx | Digital output

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12-month warranty (new) · 3-month (used/refurbished)
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What is the Beckhoff EL2521?

The EL2521-xxxx output terminals change the frequency of a binary signal and output it (electrically isolated from the E-bus). The frequency is preset by a 16 bit value from the automation device. The signal state of the EtherCAT Terminal is indicated by

Specifications

Connection technology	pulse train (frequency output)
Number of outputs	1 channel (2 differential outputs A, B)
Number of inputs	2 (+T, +Z)
Load type	min. 120 Ω
Distributed clocks	yes
Output specification	RS422, differential
Max. output current	0.5 A
Base frequency	0…500 kHz, 50 kHz default
Resolution	max. 15 bit
Current consumption E-bus	typ. 280 mA (load-dependent)
Power supply	via the E-bus
Current consumption power contacts	–
Electrical isolation	500 V (E-bus/field potential)
Special features	pulse output with variable frequency: frequency modulation, pulse direction specification, AB incremental encoder simulation with connection to TwinCAT NC, ramp function, travel distance control
Weight	approx. 50 g
Operating temperature	0…55°C
Storage temperature	-25…+85°C
Relative humidity	95%, no condensation
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
Protect. rating/installation pos.	IP20/variable
Pluggable wiring	for all ESxxxx terminals
Approvals/markings	CE, CCC, UL, ATEX, IECEx
Ex marking	ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc
Design form	compact terminal housing with signal LEDs
Material	polycarbonate
Installation	on 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means of	double slot and key connection
Marking	labeling of the BZxxxx series
Wiring	solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver
Connection cross-section	s: 0.08…2.5 mm², st: 0.08…2.5 mm², f*: 0.14…1.5 mm²
Connection cross-section AWG	s: AWG28…14, st: AWG28…14, f*: AWG26…16
Stripping length	8…9 mm
Current load power contacts	Imax: 10 A
Dimensions (W x H x D)	12 mm x 100 mm x 68 mm

EL2521: frequently asked questions

When can EL2521 be shipped?

EL2521 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up EL2521 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for EL2521 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for EL2521, subject to availability and destination.