EL2872-0010 Beckhoff
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The Beckhoff EL2872-0010 is part of the EL EtherCAT Terminals series and provides 16 output channels with a nominal voltage of 24 V DC and an IP20 protection rating. Each channel supports up to 0.5 A output current, with a contact strip featuring a 20-pin flat-ribbon cable connection. This terminal uses ground switching, supports ohmic, inductive, and lamp loads, and mounts on a 35 mm DIN rail.
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Product Description:
The EL2872-0010 is a digital output terminal produced by Beckhoff within the EL EtherCAT Terminals series. Designed for distributed I/O stations on an EtherCAT fieldbus, the device converts controller commands into discrete 24 V switching signals for actuators and indicator circuits in industrial automation systems. It interfaces with the EtherCAT backplane through the integrated E-bus connector, enabling deterministic millisecond-level updates in synchronized motion or machine control tasks.
The terminal provides 16 output channels mapped directly into the process image as 16 output bits, so every bit in the PLC program corresponds to one real output point. Each channel can switch up to 0.5 A per channel, while the flat-ribbon contact strip has a shared per-pin limit of 1 A max to prevent trace overheating. The nominal output supply is 24 V DC, which matches common sensor and actuator power buses. The unit mounts on a 35 mm DIN rail, allowing quick installation beside other terminals inside a control cabinet. An IP20 housing protects the electronics against accidental finger contact and solid objects larger than 12.5 mm. The output stages use ground-switching topology, so the load’s positive side is tied to the supply and the terminal sinks current to ground when energized. The design accommodates ohmic, inductive, and lamp loads without external suppression components, and the flat-ribbon cable connection with a 20-pin header simplifies parallel wiring.
A 20-pin contact strip on the front accepts the flat-ribbon header and keeps channel spacing consistent. The terminal typically draws 130 mA from the EtherCAT E-bus for its logic and driver circuitry, so the system power budget must account for this consumption. Reverse-polarity protection on the supply line helps prevent damage if the supply is connected incorrectly. Switching edges are fast: the typical energizing delay is 50 µs, and de-energizing occurs within 200 µs. These timing characteristics support deterministic output behavior when the controller addresses the terminal.
Frequently Asked Questions about EL2872-0010:
Q: How many output channels does the EL2872-0010 terminal have?
A: The EL2872-0010 EtherCAT Terminal features 16 output channels for digital switching tasks.
Q: What is the nominal voltage required by the EL2872-0010 terminal?
A: This model supports a nominal voltage of 24 V DC for reliable operation.
Q: What is the maximum output current per channel for the EL2872-0010?
A: Each channel on the EL2872-0010 can supply a maximum output current of 0.5 A.
Q: Does the EL2872-0010 terminal offer reverse polarity protection?
A: Yes, the EL2872-0010 includes reverse polarity protection for safe installation.
Q: What type of connection does the EL2872-0010 terminal utilize?
A: The connection type for the EL2872-0010 is a flat-ribbon cable with a 20-pin contact strip.
