EL2252 Beckhoff
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MPN: EL2252-0000
The Beckhoff EL2252 is an EtherCAT terminal from the EL EtherCAT Terminals series with two digital outputs and a push-pull output stage. This terminal is designed for ohmic, inductive, and lamp loads with a rated output voltage of 24 VDC and a maximum output current of 0.5 A. It features a protection class of IP20 and supports distributed clocks with less than 1 microsecond switching time.
Internal Product Review
The EL2252 is a Beckhoff EL EtherCAT Terminal with 2 digital outputs and a push-pull output stage. Support for Distributed Clocks and 10 ns time stamp resolution gives this terminal excellent timing performance for fast synchronized control. Switching time below 1 µs makes the EL2252 a strong choice for high-speed output tasks.
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Product Description:
The EL2252 is a digital output EtherCAT terminal produced by Beckhoff as part of the EL EtherCAT Terminals series. Inserted into an EtherCAT I/O stack, it provides deterministic control of external actuators in machine and process automation. The module contains two digital output channels, and its internal timing is coordinated with the bus cycle so that edge changes can be issued precisely when commanded by the controller.
Each channel has a rated output of 24 V DC and can source or sink up to 0.5 A continuously through a push-pull stage, allowing the unit to drive resistive, inductive, or lamp loads without additional interface relays. To protect against downstream faults, the terminal applies a typical current limit of 4 A for 150 µs, forcing a rapid shutdown when a short circuit occurs. Switching edges are generated in less than 1 µs, and the internal distributed-clock comparator maintains a timing deviation of much less than 1 µs between the commanded event and the hardware transition. Compatibility with several load types simplifies wiring in applications that use different actuator technologies.
Precise sequencing is supported by the integrated Distributed Clocks feature. The terminal can timestamp every output event with a resolution of 10 ns, and the associated data occupies 17 bytes plus 4 bits in the process image exchanged with the controller during each cycle. All electronics are powered through the E-bus, drawing 130 mA from the internal supply and an additional 30 mA plus load current from the power feed. Communication and logic share the same backplane, so no external 24-volt supply is required for signaling. The housing has an IP20 protection rating and is intended for installation inside a control cabinet where exposure to contaminants is limited.
