EL4001 Beckhoff
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MPN: EL4001-0000
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The Beckhoff EL4001 is part of the EL EtherCAT Terminals series and features one analog output channel with a 12-bit resolution and a 100 microsecond conversion time. It supports a 24 VDC power supply, has an IP20 protection class, and mounts on a 35 mm rail. The terminal operates with a typical E-bus current of 140 mA and includes distributed clocks.
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Product Description:
The EL4001 analog output terminal is produced by Beckhoff and belongs to the EL EtherCAT Terminals series. The unit converts numerical commands from the bus into a variable voltage, enabling PLCs to drive actuators or provide set points for process equipment without separate analog conversion hardware. Intended for distributed automation, it combines signal electronics and power contacts inside a 12 mm housing that clips onto a standard DIN rail. Its compact enclosure fits within control cabinets and connects directly to adjacent EtherCAT I/O terminals, conserving rail space while supporting modular machine layouts.
The terminal offers one analog channel, providing the controller with a single voltage output point. Each sample is rendered with 12-bit resolution, and the converter completes an update within 100 µs. The resulting value is written to a 1 × 16-bit analog output entry in the process image for access by the controller. Multiplex sampling permits successive updates without collisions on the local backplane, while EtherCAT distributed clocks maintain deterministic timing across the network. The logic circuits typically draw 140 mA from the E-bus, separating communication power demand from the field-side electrical load. The analog section receives power from a separate 24 VDC supply routed through the power contacts, allowing the field supply to remain independent of the terminal electronics.
Physical installation is supported by a 35 mm mounting rail interface that secures the housing without requiring tools. The power contact can deliver up to 40 mA to the analog circuitry, while the 0 V return path accepts up to 500 mA. A shield clamp carries up to 100 mA to ground, helping divert stray electrical interference away from the signal path. Signals use a single-ended reference, which simplifies wiring for compatible voltage-driven actuators and process inputs. The IP20 protection class limits installation to enclosed cabinets while protecting against accidental contact with hazardous internal parts.
