EtherCAT box for angle, acceleration measurement

Beckhoff's EP1816-3008 EtherCAT Box is an I/O module that is IP67-rated with built-in tilt monitoring and has two integrated 3-axis acceleration sensors and 16 digital inputs.


Beckhoff's EP1816-3008 EtherCAT Box is a feature-packed I/O solution is IP67-rated with built-in tilt monitoring and has two integrated 3-axis acceleration sensors and 16 digital inputs. Courtesy: BeckhoffThe EP1816-3008 EtherCAT Box from Beckhoff Automation is a I/O module with many features, including a built-in tilt monitoring in longitudinal and transverse directions. This compact, IP67-rated measuring device has two integrated 3-axis acceleration sensors and 16 digital inputs. The easy-to-install I/O module for harsh environments can be used to implement cost-effective acceleration and angle measurement directly in the field, outside of protective electrical cabinets.

A typical application for the 3-axis acceleration box is vibration and shock/oscillation monitoring of machines, plants and buildings. For example, vibrations of robot arms can be precisely monitored with no great effort via the acceleration measurements. For wood sawing machines, an EP1816-3008 mounted on the work table enables reliable monitoring of the saw-blade angle adjustment through fast signal acquisition over EtherCAT.

When compared with the conventional combination of sensors and separate data sampling devices, the compact and robust EtherCAT Box solution is more cost-effective and easier to install and integrate. In addition, the signals are available directly in the main control system rather than being managed with stand-alone measurement solutions. As another key differentiator, the two sensors, which are arranged at 90° angles, make the EP1816-3008 a redundant measuring system, which can be reliably verified by the controller.

The EP1816-3008 EtherCAT Box features two integrated 3-axis, 16-bit acceleration sensors with resolution options of ±2 g, ±4 g, ±8 g and ±16 g. The sampling frequency is 1 Hz to 5 kHz. These MEMS (micro-electronic mechanical systems) are based on forked silicon structures, which have movements or vibrations that result in a capacitive change and a corresponding signal value.

Beckhoff Automation 

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