NF DP060LM, Instruction Manual, Page: 268 / 307

11. Specifications
PROGRAMMABLE AC POWER SOURCE 250
11.5 Signal Source
Single-phase output Polyphase output
Signal source INT, VCA, SYNC, EXT, ADD INT, VCA, SYNC
Description
INT
Uses the internal signal source.
Sets the output voltage, output waveform, frequency, output on phase, and output
off phase by using the panel or the external interface such as USB.
Fixed to INT in the Sequence and Simulation.
VCA Uses the internal signal source.
Controls the output voltage setting of the internal signal source with the DC signal
which is input to the external input terminal. The output voltage setting cannot be
set from external interfaces such as the panel or USB. All conditions except for
output voltage setting are same as INT.
For the polyphase output the setting is common to all the phases.
Cannot be selected in the ACDC mode.
SYNC Uses the internal signal source.
Synchronizes the frequency of the internal signal source with the signal (EXT)
from the external synchronization signal input terminal (also used as the external
input terminal) or the power supply input frequency (LINE) of the product. The
frequency setting cannot be set from external interfaces such as the panel or USB.
All conditions except for output frequency setting are same as INT.
Cannot be selected in the DC mode.
EXT Uses the external signal source.
Amplifies the signal from the external input terminal by the specified gain
(variable), and outputs it.
Cannot be selected for the polyphase output.
Cannot be selected in the DC mode.
ADD Uses both the internal and external signal sources.
Amplifies the signal from the external input terminal by the specified gain like
EXT, and adds the internal signal source component to it.
Cannot be selected for the polyphase output.
Cannot be selected in the DC mode.