NF KP3000GS, Инструкция по эксплуатации

Страница: 173 / 279

4. Advanced Operation
PROGRAMMABLE AC/DC POWER SOURCE 154
--------
Notes
------------------------------------------------------------------------------------------------------------
 For VCA, the external signal input is detected with the interval of about 100 ms.
-----------------------------------------------------------------------------------------------------------------------------
4.16.1 Using External Signal in AC-VCA Mode
In the AC-VCA mode, the peak value of the output AC voltage (ACV) is set according to the
following figure, by using the gain setting value and the voltage of the external DC signal.
ACV (Vpk) = Gain x External DC signal voltage (V)
For the specifications of the gain setting range and the external DC signal input voltage range, see
10.22.2 .
-------- Notes ------------------------------------------------------------------------------------------------------------
 The gain setting value is retained for each of 100 V/200 V ranges and for each of AC/DC
modes.
 Within the same range and the same mode, the same value is retained for the gain setting value,
regardless of the combination of the signal sources (VCA, EXT, ADD).
 When the switching from AC-VCA mode to ACDC mode, the signal source is forcibly set to
INT.
-----------------------------------------------------------------------------------------------------------------------------
 Examples
1. When the waveform is SIN, the gain is 100, and the external DC signal voltage is 1 V, the
output will be a sine wave of which amplitude is 100 Vpk (= 70.7 Vrms).
2. When the waveform is SIN, the gain is 100, and the external DC signal voltage is 1.41 V, the
output will be a sine wave of which amplitude is 141 Vpk (= 100 Vrms).
 Operation procedure
1. Turn off the output, and enter the AC mode. Following two methods are available.
(a)
Shortcut operation: +
Every time you press the keys, the mode is switched to AC, ACDC, and DC in this order.
(b) Press the [Osc] soft-key and select [1:AC/DC]. From the opened menu, select [1: AC].