5.2.5 Voltage inputs
The unit has a voltage relay incorporated that has to be connected to the corresponding inputs
L1,L2,L3 and the installation neutral. The function then has to be activated by setting the voltage input
function in, “in use” mode.
The voltage input is designed for a maximum input voltage of 400 Volts between phases and 230 volts
between phase and neutral. If the installation uses a higher voltage than 400 Volts (phase to phase) a
voltage transformer must be used at the input. The transformation rate used will be set in the
transformation factor window for each phase.
Factor 1 corresponds to 400 volt input (ph/ph).
Factor 2 corresponds to 800 volt input (ph/ph) etc.
For thevoltage inputs tonwork correctly the Neutral must be used. Ifno neutral exists you have to
create a neutral with a voltage transformer
( For mor information check with local representative
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