Dc Output; Output Voltage Stability - NF DP420LS Instruction Manual

11.6

DC Output

[V]=Vdc, [A]=Adc, the polarity is relative to the Lo terminal, unless otherwise noted.
Mode
Rated output voltage
Voltage setting range
Setting resolution 0.1 V
Voltage accuracy *14
Maximum source
current
Maximum
instantaneous source
current
Short sink current
current
Power capacity
*14: In the case of −212 V to −10 V, +10 V to +212 V / −424 V to −20 V, +20 V to +424 V, no load,
AC setting 0 V, 23 °C5 °C.
*15: If the output voltage is higher than the rated value, this is limited (lowered) to satisfy the power
capacity. If there is the AC superimposition, the active current of DC+AC satisfies the maximum
current. In the case that the ambient temperature is 40 °C or higher, the maximum current may
decrease.
*16: Instantaneous = within 2 ms, at the rated output voltage.
*17: In the case rated output voltage. If the output voltage is higher than the rated value, this is limited
to satisfy the power capacity. It may reduce short sink current if ambient temperature is more
than 40 °C or repeated interval of sink current is less than 15 minutes.
11.7

Output Voltage Stability

Fluctuation with
input voltage
Fluctuation with
output current
Fluctuation with
ambient temperature
*18: For power input 170 V to 230 V, power input 200 V reference, the resistance load at the
maximum current, the rated output voltage, DC or 45 Hz to 65 Hz. Transition state immediately
after a change of the input power-supply voltage is not included. For the polyphase system, it is a
specification for phase voltage setting.
*19: In the case that the output current is changed from 0 % to 100 % of the maximum current. For
output voltage 75 V to 150 V/150 V to 300 V, no load reference. However, if the output voltage is
higher than the rated value, the maximum current is limited to satisfy the power capacity. For the
polyphase system, it is a specification for phase voltage setting.
*20: For power input 200 V, no load, the rated output voltage, DC or 45 Hz to 65 Hz.
DP420LS/DP480LS
420LS
Floating output, the Lo terminal can be grounded.
100 V / 200 V
−220.0 V to +220.0 V / −440.0 V to +440.0 V
(|0.5 % of set| + 0.6 V / 1.2 V)
420 A / 210 A
*15
Peak value (Apk) which is three times of the maximum source current
*16
Less than 100 % of Maximum source current (RMS)
*17
(reverse power flow time ≦20 ms, discontinuous, less than 40 °C)
42 kW
Single
Within 0.15 % (typ.)
*18
DC
Within 0.15 V / 0.30 V
*19
45 Hz to 65 Hz
Within 0.15 V / 0.30 V
40 Hz to 550 Hz
Within 0.5 V / 1.0 V
Within 0.01 %/°C (typ.)
*20
480LS
Single
480 A / 240 A
48 kW
Polyphase system
45 Hz to 65 Hz
Within 0.15 V / 0.30 V
40 Hz to 550 Hz
Within 0.5 V / 1.0 V
11.6 DC Output
241