Manual

Table Of Contents

3.10.3 Method of operation

In order to understand how the function generator works and how the value settings interact, the following should be noted:

The device operates always with the three set values U,I and P, also in function generator mode.

The selected function can be used on one of the values U or I, the other two are then constants and have a limiting effect.

That means, if, e.g. a voltage of 40 V is applied to the DC input and a sine wave function should operate on the current with

an amplitude of 200 A and offset 200 A, then the function generator will create a sine wave progression of current between 0

A (min) and 400 A (max), which will result in an input power between 0 W (min) and 16000 W (max).The input power, however,

is limited to its set value. If this were 12000 W then, in this case, the current would be limited to 300 A and, if clamped to an

oscilloscope, it would be seen to be capped at 300 A and never achieve the target of 400 A.

Another case is when working with a function which is applied to the input voltage. If here the static voltage is set higher

than the amplitude plus offset then at function start there will be no reaction, as the voltage regulation limits down to 0 with

an electronic load, other than current or power. The correct settings for each of the other set values is therefore essential.

Master-slave systems have further characteristics which have to be considered:

At the end of the conguration, after the function has been loaded and the screen shows the main view

of the function generator, there are adjustable set values, the so-called “U/I/P limits”. These limits are

transferred to all slave units of master-slave systems. It’s recommended to carefully congure them

so the MS system can work as expected and the slaves wouldn’t impact the function run in a negative

way.

3.10. 4 Manual operation

3.10. 4 .1 Function selection and control

All the functions listed in

3.10.1

can be called on the touch screen,

congured and controlled. Selection and conguration are only

possible while the DC input is switched off.

► How to select a function and adjust parameters

1. While the DC input is switched off tap touch area

on the main screen. Note: this icon is locked as long as resis-

tance mode (R mode) is enabled.

2. In the menu select the desired function by tapping on the list on the left-hand side. Depending on the choice of function

there follows a request to which value the function generator is going to be applied, Voltage or Current.

3. Adjust the parameters as you desire.

4. Adjust the overall limits of voltage, current and power, then continue with .

5. As last part of the conguration, global set values have to be dened which are considered as static values and come

into effect before and after the function run. Correct setup here is important, especially when running the function on

a master device of a master-slave system.

The global limits of U, I and P become instantly active when coming to the main screen of the

function generator, because the DC input is then switched on automatically to settle the start situ-

ation. This can be helpful when wanting a function shall not start at 0V or 0 A. In case the situation

requires otherwise, the static values could also be set to 0.

6. Exit the conguration and enter the main function generator screen with .