Product Description:

The ECPE82-2 is a plug-in control module manufactured by B&R Automation within the ECP Multi Control Modules series. Designed for analog signal conditioning inside distributed I/O nodes, the module contributes precision measurement data to CNC, packaging, and process controllers. By sampling multiple current loops and voltage references, it converts field-level feedback into data blocks that the higher-level CPU can evaluate for closed-loop tasks such as tension, flow, or position regulation in industrial automation lines.

The module offers a basic measurement precision of ±0.3 % at 20 °C, allowing consistent scaling across all eight differential channels. Each input is digitized at 10-bit granularity, so the controller sees 1024 discrete steps over the chosen analog span. A built-in fourth-order filter limits the usable bandwidth to 640 Hz, suppressing high-frequency noise before conversion. With 8 hardware inputs available, the module can read multiple sensors through one board while maintaining identical electrical characteristics. Those channels present an impedance of 50 Ω, a value selected to match typical 20 mA current-loop transmitters and to minimize loading errors.

Long-term stability is addressed through a gain drift of ±0.03 %/°C and an offset drift of ±0.0055 %/°C, figures that limit temperature-induced error over the module’s −40 to 60 °C working range. Overall linearity remains within 0.45 %/V, keeping proportionality between sensed current and reported digital value even when supply rails fluctuate. Because the design lacks galvanic isolation, all channels share the same ground reference and must be connected only to sources that are already isolated from high power. Power consumption is split across the internal rails: 0.5 W when fed by −30 V, 0.5 W from the +15 V domain, and 0.7 W at +8 V. The analog front end introduces a load-side burden of 1 V at 20 mA, which must be included when sizing sensor compliance voltage.