EL3453-0090 - Introduction
EL3453-0090 | 3-phase power measurement terminal up to 690 V AC with extended functionality, TwinSAFE SC
Fig.14: EL3453-0090 (component values only exemplary, exact value see technical data)The EL3453-0090 EtherCAT power measurement terminal has voltage inputs for direct monitoring of powerful generators up to max. 690 V AC, as is common in the wind power industry, for example. No upstream voltage transformer is required.
The four current inputs are electrically isolated from each other and allow the terminal to be used in all common grounded current transformer configurations such as 2- or 3-transformer configurations with star or delta connection including neutral current measurement. Simple grid analyses are performed by the EL3453 up to the 63rd harmonic analysis or summarized in the Power Quality Factor for simplified diagnosis. Like all measured values of the terminal, the harmonic content can be read via the process data.
The TwinSAFE SC technology (TwinSAFE Single Channel) enables the use of standard signals for safety tasks in any networks or fieldbuses. To do this, EtherCAT I/Os from the areas of analog input, angle/displacement measurement, or communication (4...20 mA, incremental encoder, IO-Link, etc.) are extended by the TwinSAFE SC function. The typical signal features and standard functionalities of the I/O components are retained. TwinSAFE SC I/Os have a yellow strip at the front of the housing to distinguish them from standard I/Os.