BECKHOFF Automation’s EL3632 EtherCAT terminal can integrate condition monitoring functions into the EtherCAT I/O system. The EL3632 EtherCAT terminal does not require additional hardware and results in optimum integration into the control system and cost reductions.
The signals are analysed on the PC using either TwinCAT automation software or user software. The EtherCAT real-time Ethernet system is a suitable network for high-performance communication of all measured data back to the PC.
The EL3632 EtherCAT terminal enables the direct connection of various accelerometers through an IEPE (Integrated Electronics Piezo-Electric) or ICP (Integrated Circuit Piezoelectric) interface. These sensors record vibrations in a machine, bearing or motor by means of analysis and detect wear and damage before a breakdown occurs, avoiding unplanned downtime or prolonged maintenance intervals. A central, PC-based controller is suitable if large amounts of data from different devices need to be referred to for analysis or if damage frequencies need to be evaluated in relation to rotary speeds.
Condition monitoring becomes an integrated part of the controller when using the EL3632 EtherCAT terminal. The data is recorded by the standard I/O system and made available to the superordinated PC controller.
The measurement signals are evaluated on the PC using a TwinCAT library or user software and the warning or shutdown thresholds are set accordingly. Adjustable filters and supply currents for matching various sensors enable the user-specific adaptation of the condition monitoring terminal.
The EL3632 EtherCAT terminal is supported by various TwinCAT libraries using filters such as FFT (Fast Fourier Transformation), digital high-pass or low-pass filters, or envelope monitoring. TwinCAT Scope is also being expanded to include condition monitoring functions.
In EtherCAT, a capable communication system is available for the high-performance relaying of the recorded status data to the PC controller. The ‘Scientific Automation’ concept is applied on the central PC. Besides sequential control, motion control and HMI, TwinCAT integrates functions such as condition monitoring on a software and hardware platform. In addition to the integration of all components and the reduction of hardware costs, engineering efforts are simplified. Configuration, programming and diagnostics take place on one system using TwinCAT.