NF DP420LS Instruction Manual page 165

4. Advanced Operation
4. For the [Type] item, select the output voltage or current.
5. Put the cursor on [Close], then press the ENTER key.
-------- Notes ------------------------------------------------------------------------------------------------------------
 In a polyphase system, configure monitor setting for each of the phases using the L1 phase
cabinet. Each cabinet's monitor output connector outputs the monitor voltage of that phase.
 In the case of single-phase output, the [Phs] item is fixed to L1.
 The output voltage monitor watches the voltage at the output terminal when the remote sensing
state is on or off and the voltage at the sensing input terminal when the remote sensing state is
FB.
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146 PROGRAMMABLE AC POWER SOURCE