BECKHOFF EL4038 EtherCAT Terminal 8-Channel Analog Output Module

Description

To streamline analog signal generation in industrial automation topologies, the BECKHOFF EL4038 EtherCAT terminal provides eight high-density analog outputs within a compact 12 mm form factor. This 8-channel analog output module converts digital control values from the process image into standard electrical signals ranging from -10 to +10 V with a 12-bit resolution. Operating on single-ended, 1-wire connection technology, the module minimizes panel wiring overhead while maximizing output channel density on the DIN rail. Integrated distributed clocks ensure ultra-precise, synchronized signal output across the entire EtherCAT network, making it suitable for high-speed control loops.

Features

• Eight independent analog outputs generating bipolar voltage signals from -10 to +10 V.
• Integrated distributed clocks providing synchronization accuracy of less than 1 microsecond.
• Short-circuit proof voltage outputs capable of driving resistive loads greater than 5 kOhm.
• Electrical isolation of 500 V between the internal E-bus circuitry and the field-level signal lines.
• Configurable watchdog functionality providing user-specific safe output values and ramp behaviors upon loss of communication.
• Space-saving 12 mm housing width utilizing tool-free direct plug-in connection technology.

Applications

• Precision motor speed and torque command interface for variable frequency drives (VFDs).
• Proportional valve and actuator positioning in hydraulic and pneumatic control loops.
• Signal emulation and hardware-in-the-loop (HIL) laboratory testing setups.
• Multi-axis synchronized motion control applications in packaging and assembly systems.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Mount vertically or horizontally on standard 35 mm DIN rail (conforming to EN 60715) using the integrated locking mechanism.
• Ensure secure side-by-side terminal contact using the built-in double slot and key connection system.
• Use a screwdriver to actuate the tension clamp spring mechanism when terminating solid, stranded, or ferruled conductors.
• Observe the maximum allowable current load of 10 A on the internal power contacts during terminal power rail configuration.

Compliance and Certifications

• CE
• UL
• ATEX: II 3 G Ex nA IIC T4 Gc
• EMC Immunity/Emission: EN 61000-6-2 / EN 61000-6-4
• Vibration/Shock Resistance: EN 60068-2-6 / EN 60068-2-27