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EL5021 – BECKHOFF

EL5021 | EtherCAT Terminal, 1-channel encoder interface, SinCos, 1 VPP
The EL5021 EtherCAT Terminal is used for the direct connection of a measuring probe or encoder with sinusoidal, differential voltage output 1 VPP. Input frequencies of max. 250 kHz can be evaluated. The current counter reading can be zeroed (reset) or stored separately via the C track of the encoder, which is also called reference mark. The 5 V supply to the encoder is provided directly via the terminal connection points. The EL5021 features amplitude and frequency error detection of the input signals.
Special features:
store, lock, set counter
diagnosis: frequency error and amplitude error of input signals
integrated frequency measurement
integrated 5 V DC encoder operating voltage
The analog input signal is processed, interpolated and made available as a 32-bit count value. The count value is a combination of the number of whole periods, max. 24 bits, and the value within one sine period, with max. 13 bit resolution. The EL5021 also provides an internal frequency measurement. It also supports synchronous reading of the encoder value together with other input data in the EtherCAT system via the high-precision EtherCAT distributed clocks (DC). The use of encoder profiles enables simple and fast linking of process data to motion control applications.
Technical data EL5021
Technology SinCos encoder interface for differential 1 VPP signal
Number of channels 1
Encoder connection 1 x A, B, C: differential inputs 1 Vpp: A, A̅ (inv), B, B̅ (inv), C,C̅ (inv)
Encoder operating voltage 5 V DC/max. 0.5 A (generated from the 24 V DC power contacts)
Counter max. 24 bit (adjustable)
Input frequency 250 kHz @ 10 bit (sampling rate 70 MHz)
Distributed clocks yes
Nominal voltage 24 V DC at power contact
Current consumption power contacts typ. 50 mA + load
Resolution max. 13 bit, 8192 steps per period
Electrical isolation 500 V (E-bus/field potential)
Current consumption E-bus typ. 120 mA
Special features latch, reset, change counting direction, amplitude and frequency error recognition, frequency-dependent period resolution, frequency counter max. 24 bit
Weight approx. 55 g
Operating/storage temperature 0…+55 °C/-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, UL, ATEX
Ex marking II 3 G Ex nA IIC T4 Gc
Technical data
Housing data
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Housing data EL-12-8pin
Design form compact terminal housing with signal LEDs
Material polycarbonate
Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
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 BZxxx series
Wiring solid conductor (e), flexible conductor (f) and ferrule (a): 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*: AWG 28…14,
st*: AWG 28…14,
f*: AWG 26…16
Stripping length 8…9 mm
Current load power contacts Imax: 10 A
*s: solid wire; st: stranded wire; f: with ferrule

From: 230,00  IVA esc.

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