About Wattage Limiter; Using Sequence Function; Basics; Table 4-1 Wattage Limiter Value Per Phase (Reference Value) - NF DP420LS Instruction Manual

4.1.5 About Wattage Limiter

The wattage limiter operates when trying to output the power exceeding the rated power. When the
wattage limiter operates, the output voltage is suppressed until the active power per phase is the
value in Table 4-1 (reference value). While the limiter is working, icon
LIMIT LED illuminates.

Table 4-1 Wattage Limiter Value per Phase (Reference value)

-------- Notes ------------------------------------------------------------------------------------------------------------
 If the wattage limiter operates, suppress the output wattage within the rated output power by
lowering the output voltage setting value.
 Active power (unit: W) is restricted by the wattage limiter, however, reactive power (unit: var)
is not restricted. Therefore, the apparent power (unit: VA) may exceed the rated power
depending on the power factor of the load. Set the output voltage so that the apparent power
does not exceed the rated power, regardless of the operation of the wattage limiter.
 The value of the wattage limiter cannot be changed. To limit the output power to a value that is
lower than the rating, decrease the number of power units that are energized through the power
unit energization setting, or use the peak current limiter or the RMS current limiter.
-----------------------------------------------------------------------------------------------------------------------------
4.2

Using Sequence Function

4.2.1 Basics

By using Sequence function, an output setting can be changed step-by-step according to the program
(sequence) created beforehand. This section describes the basics for using the Sequence function.
 AC/DC Mode and Signal Source
Sequence function keeps the selection of the AC/DC mode and a signal source, independently from
Continuous function/Simulation function. AC/DC mode can be selected from AC/ACDC/DC. A
signal source is fixed as INT.
DP420LS/DP480LS
DP420LS
Rated output
（Unit：VA）
1 6000
2 12000
3 18000
4 24000
5 30000
6 36000
7 42000
8
－
Limiter Value Rated output
（Unit：W） （Unit：VA）
6300 6000
12600 12000
18900 18000
25200 24000
31500 30000
37800 36000
44100 42000
48000
－

4.2 Using Sequence Function

is displayed and
DP480LS
Limiter Value
（Unit：W）
6300
12600
18900
25200
31500
37800
44100
50400
63