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Beckhoff Automation (Pty) Ltd

7 Ateljee Street
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2169, South Africa

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www.beckhoff.com/en-za/

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

EJ5021 | EtherCAT plug-in module, 1-channel encoder interface, SinCos, 1 VPP

The EJ5021 EtherCAT plug-in module 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 signal distribution board (UP). The EJ5021 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 EJ5021 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.

Product status:

regular delivery

Product information

Technical dataEJ5021
Number of channels1
Connection technologySinCos encoder interface for differential 1 VPP signals
Encoder connection1 x A, B, C: differential inputs 1 Vpp: A, A̅ (inv), B, B̅ (inv), C,C̅ (inv)
Encoder operating voltage5 V DC/max. 0.5 A (generated from UP 24 V DC)
Countermax. 24 bit (adjustable)
Input frequency250 kHz @ 10 bit (sampling rate 70 MHz)
Supply voltage electronics24 V DC (via distribution board)
Current consumption E-bustyp. 140 mA
Current consumption from UPtyp. 10 mA + load
Resolutionmax. 13 bit, 8192 steps per period
Distributed clocksyes
Electrical isolation500 V (E-bus/field potential)
Special featureslatch, reset, change counting direction, amplitude and frequency error recognition, frequency-dependent period resolution, frequency counter max. 24 bit
Weightapprox. 30 g
Operating/storage temperature0…+55°C/-25…+85°C
Relative humidity95%, no condensation
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP20/see documentation
Approvals/markingsCE
Housing dataEJ-12-16pin
Design formEtherCAT I/O plug-in module
Materialpolycarbonate
Installationon signal distribution board
Mechanical codingEJ plug-in module: signal-specific coding pins on the housing,
signal distribution board: holes in the printed circuit board
Lockinglatching lug in circuit board cut-out
Connection methodfield wiring: application-specific wiring level on the signal distribution board,
EJ plug-in module: 2 x 20-pin socket strip
Dimensions (W x H x D)12 mm x 66 mm x 55 mm

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