EL2034 Beckhoff
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MPN: EL2034-0000
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The Beckhoff EL2034 is part of the EL EtherCAT Terminals series and provides four outputs with a maximum output current of 2 A per channel. It supports a rated output voltage of 24 VDC, offers short and open circuit detection, and is designed to handle ohmic, inductive, or lamp loads. The terminal features IP20 protection and includes reverse voltage protection for added safety.
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Product Description:
The EL2034 is a four-channel digital output module produced by Beckhoff for the EL EtherCAT Terminals series. Installed on an EtherCAT I/O strand, the terminal supplies 24-volt DC power to field devices such as contactors, solenoids, and signal lamps while forwarding diagnostic status information to the controller. It acts as a compact interface that switches loads directly through the E-bus without requiring separate wiring islands or relay boards in industrial automation cells.
The terminal delivers a rated output of 24 V DC, and each channel can supply up to 2 A per channel, allowing direct connection of moderate-current actuators. The semiconductor driver reaches its conducting state in 40 µs and returns to a nonconducting state in 200 µs. These switching times support responsive control of connected field devices. A housing rated at IP20 protects the electronics against accidental contact with live components when the terminal is installed inside a suitable cabinet. Four process-image output bits allow the controller to operate the channels individually, while four diagnostic bits report channel status through the EtherCAT network.
The control electronics draw only 120 mA from the E-bus, while the load side has a base current demand of 14 mA plus the connected load. This arrangement helps limit the current drawn by the terminal electronics while accounting separately for power consumed by connected devices. Energy returned during coil de-energization is limited to less than 1.7 J per channel, so external flyback diodes are typically unnecessary for loads within this limit. Diagnostic logic monitors wiring integrity through integrated short-circuit and open-circuit detection, allowing electrical faults to be reported to the controller. Reverse-polarity protection helps prevent damage if the 24-volt supply connections are reversed. The outputs support resistive, inductive, and lamp loads, providing compatibility with several common types of industrial field devices.
