ECPA42-01 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation ECPA42-01 is part of the ECP Multi Control Modules series and features four outputs with a maximum load per channel of 20 mA. This module has a 12-bit plus sign resolution and provides output signals up to 10 V. It offers a linearity of 0.2 percent and operates with power ratings of 3.0 W at -30 V, 1.7 W at +15 V, and 0.5 W at +8 V.
Internal Product Review
The ECPA42-01 is a B&R Automation ECP multi control module with 4 outputs and a ±10 V output signal. The 12 Bit + Sign resolution and 0.2% linearity support precise, repeatable analog command performance, making the module a strong choice for stable multi-channel control.
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Product Description:
The ECPA42-01 control module created by B&R Automation belongs to the ECP Multi Control Modules series. It is an analog output board that delivers ±10 V ranges for up to four channels, allowing a system CPU to drive valves, positioners, or other process actuators directly from the backplane. By converting digital setpoints into standardized voltage levels, the board forms a direct link between the control algorithm and field devices in industrial automation.
Analog accuracy is governed by several parameters. The gain coefficient varies by only ±0.12 %/°C, so full-scale values drift very little as temperature changes. A fixed tolerance of ±0.2 % at 20 °C sets the initial gain error, while linearity is held within 0.2 %. Each of the four outputs can source or sink up to ±20 mA, and each channel delivers a nominal range of ±10 V. Resolution is 12-bit resolution with sign, which supports precise bipolar analog output. Across all channels, the total permissible load is -80 mA / +160 mA, and there is no galvanic isolation between logic and field circuits, so external grounding must prevent cross-system faults.
Power consumption depends on the available supply rails. When the -30 V rail is present, the board draws 3.0 W. With the +15 V rail active, it requires an additional 1.7 W, and the +8 V logic rail adds 0.5 W that is not included in the previous figures. Designers can size cabinet power supplies accordingly when estimating the thermal load of the four-output card. Offset at 20 °C is ±0.1 %, and drift is limited to ±0.05 %, so zero references remain centered even when ambient conditions fluctuate. Although the module does not include an isolation barrier, channel-to-channel interaction is controlled by the stated load limits, allowing the board to maintain its stated accuracy across the rated temperature range.
