NF DP420LS Instruction Manual page 255

11. Specifications
Specifications are valid under the following settings and conditions and after a warm-up period of
30 minutes at least, unless otherwise noted.
Load
Signal source
Output voltage waveform
Remote sensing
AGC/Autocal
Current Limiter
[set] indicates a setting value, and [rdg] indicates a read value.
The description noted with "/" indicates that the specification changes by the output range, such as
"100 V range specification/200 V range specification."
A value with the accuracy is the guaranteed value of the specification. However, an accuracy noted
as reference value shows the supplemental data for reference when the product is used, and is not
under the guarantee. A value without the accuracy is the nominal value or representative value
(shown as typ.).
This product corresponds to Clause 2 (8) Frequency converter, Appendix 1 of Export Trade Control
Ordinance. The permission for exportation of the Japanese Administration is necessary for export
outside Japan.
Notes on Polyphase System
Single-phase three-wire (1P3W) system can be configured by connecting 2 of this product.
Three-phase four-wire (3P4W) system can be configured by connecting 3 of this product. These are
called as polyphase system.
Firmware discriminates power capacity and polyphase type at the start-up process just after turning
on the system connected with an optional system cable (either 1P3W or 3P4W type), and the system
starts to operate as that power capacity and polyphase type.
Output Lo terminals connected together become a neutral point (N terminal) in both the 1P3W and
3P4W system. Hi terminals are called L1, L2, and L3, respectively (L3 exists only in 3P4W system).
The cabinet to which the L1 connector of the System Cable is connected operates as master. The
cabinets to which L2 and L3 is connected operate as slave. Output voltage is defined with phase
voltage (L1, L2, and L3 to N) in this document unless otherwise noted.
236
Resistance load of power factor 1
INT (internal signal source)
Sine wave
Off
Off
Factory default setting
PROGRAMMABLE AC POWER SOURCE