Power measurement with safe power monitoring

The TwinSAFE SC technology (TwinSAFE Single Channel) facilitates the use of standard signals for safety-related tasks in any networks or fieldbuses. The EtherCAT I/Os, such as the new power measurement terminal, are expanded to include the TwinSAFE SC function, but will retain their typical signal properties and standard functionalities. The TwinSAFE SC technology facilitates communication by means of a TwinSAFE protocol. These connections can be distinguished from the usual safe communication by means of Safety over EtherCAT. The data of the TwinSAFE SC components are transferred to the TwinSAFE Logic, where they can be used in the context of safety-relevant applications, e.g., for safe power monitoring.

The four current inputs of the EL3453-0090 power measurement terminal are electrically isolated from each other and allow the terminal to be used in all common current transformer configurations such as 2- or 3-transformer configurations with star or delta connection including neutral conductor current measurement. The grid analysis is carried out up to the 63rd harmonic and also summarized in the Power Quality Factor for simplified diagnosis. Like all measured terminal data, the harmonic content can be read via the process data. In addition to the “ExtendedRange” feature, which provides the full technical measuring range (130 % of the specified nominal measuring range), the EL3453-0090 now also offers TwinSAFE SC technology.