EL4034-0000 Beckhoff
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The Beckhoff EL4034-0000 is part of the EL EtherCAT Terminals series and offers four single-ended outputs with an output range of ±10 V. This terminal operates with 12-bit resolution and has a typical full-output current of 40 mA. It features an isolation voltage of 500 V and supports a supply voltage of 24 VDC.
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Product Description:
The EL4034-0000 is a four-channel analog output terminal produced by Beckhoff in the EL EtherCAT Terminals series. Installed on an EtherCAT I/O strand, it converts process data from the controller into field-level voltage signals for proportional valves, drives, and other actuators used in industrial automation. By integrating voltage generation directly into the terminal row, it reduces wiring effort and provides deterministic updates that stay synchronized with neighboring EtherCAT nodes. This arrangement is useful where a control system must translate digital command values into stable analog references for external equipment.
The terminal delivers an output span of ±10 V, allowing both unipolar and bipolar actuation of connected hardware. Each channel is digitized internally with 12-bit granularity, producing 4,096 discrete voltage steps. The output stage is powered from the backplane at 24 VDC, and the module can drive loads down to 5 kΩ while sourcing a typical 40 mA per channel. A total of 4 independent outputs share a galvanically isolated barrier rated at 500 V, protecting the control electronics from field-side transients. Multiplex sampling sequentially services the channels, which fits typical EtherCAT scan times without overstressing the bus bandwidth. This operating method supports compact terminal density while keeping the analog section electrically separated from the field side.
During bus operation the unit draws 140 mA from the E-bus and supports Distributed Clocks, letting its analog updates remain phase-aligned to other terminals with a timing jitter below <100 ns. Across 0 °C to 55 °C, the conversion accuracy stays within <±0.1% FS, which helps maintain stable command values in closed-loop applications. Field wiring follows a single-ended scheme referenced to a common ground, and up to 500 mA can return through the ground terminal when multiple actuators are connected. The process image supplies 4 × 16-bit words to the PLC, matching the channel resolution plus status bits. An enclosure rating of IP20 designates the terminal for installation inside a protected control cabinet. Careful grounding helps prevent unwanted offsets between the terminal and connected analog devices.
Frequently Asked Questions about EL4034-0000:
Q: What is the analog output voltage range supported by the EL4034-0000 terminal?
A: The EL4034-0000 provides an analog output range of ±10 V, suitable for demanding voltage control applications.
Q: How many output channels are available on the EL4034-0000?
A: This terminal features four independent outputs, allowing multiple control signals to be sent simultaneously.
Q: What is the signal resolution for output channels on the EL4034-0000?
A: The EL4034-0000 offers a resolution of 12 bits for accurate analog signal representation.
Q: What supply voltage does the EL4034-0000 require for operation?
A: The supply voltage required for this Beckhoff terminal is 24 VDC.
Q: Does the EL4034-0000 support synchronized operation, and what is its synchronization accuracy?
A: The EL4034-0000 is equipped with distributed clocks and provides a synchronization accuracy of less than 100 nanoseconds.
