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Beckhoff EL2xxx Digital Output EtherCAT Terminals

Beckhoff EL digital-output EtherCAT terminals for switching actuators in modular I/O stations. This first selection covers 24 V DC, 2/4/8-channel electronic outputs with standard, diagnostic, high-current and ground-switching options.

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Match polarity, wiring and the station budget

An output terminal is one part of the actuator and EtherCAT station circuit. Select its electrical role before allocating cabinet space.

  1. 01

    Positive switching and ground switching differ

    Most selected terminals switch +24 V; EL2088 switches 0 V. The actuator circuit and the location of its supply/return connection change accordingly.

    • Do not wire EL2088 as a positive-switching EL2008.
    • Two-, four- and eight-channel layouts have different terminal-point assignments.
  2. 02

    Per-channel and terminal totals are separate

    EL2088 is limited to 3 A total. EL2042 reaches 8 A only with its documented parallel output connection. The 10 A power-contact rating is a station pass-through limit, not a channel rating.

    • Include terminal consumption as well as actuator load current.
    • Plan protected power-feed segments and E-bus current capacity.
  3. 03

    Select the required fault information

    EL2014 has extended diagnostics; EL2032/2034 provide diagnostic bits with an approximately 1 A regular-load condition for open-circuit detection. Standard channel LEDs are not the same process interface.

    • Map the exact terminal’s output and diagnostic process data in TwinCAT.
    • Configure communication-loss behavior and watchdogs.
  4. 04

    Keep EL product identities and lifecycle visible

    EL2022/2024/2032/2034 are listed as Last Time Buy. Their manufacturer-recommended ED alternatives are separate push-in products, not alternate names for these EL spring terminals.

    • First batch excludes ES pluggable terminals, ED push-in terminals and ELX intrinsically safe I/O.
    • Couplers, power feeds, mixed I/O and analog terminals are separate product roles.

Output selection and installation documentation

Use the exact terminal map for the load circuit and the station documentation for assembly and configuration.