Eaton EMR-4000 Installation, Operation And Maintenance Manual page 801

EMR-4000 IM02602009E
The measuring unit continuously checks the measured data by comparing received data with data from a second
channel sampled in parallel.
The auxiliary voltage is monitored continuously. If the voltage of one of the different supply circuits falls below a certain
threshold, a restart of the device is initiated. If the voltage staggers around the threshold, the device also starts again
after several seconds. Additionally the level of all internal supply voltage groups are continuously monitored.
Independent of these separate monitoring functions, the intermediate voltage circuit is buffered until all important and
relevant operational and fault-data have been saved and the device initiates a restart.
www.eaton.com 801