User Manual

Page 57
EA Elektro-Automatik GmbH
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
ELR 9000 Series
3.8.4 Manual operation
3.8.4.1 Function selection and control
Via the touchscreen one of the functions described above can be called up,
congured and controlled. Selection and conguration are only possible when
the input is switched off.
► How to select a function:
1. Tap the touch area on the main screen. If the menu does not appear it is because the DC input
is still switched on or the touch area is locked due to the device being possibly in remote control.
2. In the menu overview tap on the touch area and then on the desired function.
Note: this touch area is locked in master-slave mode or in R mode (adjustable resistance).
3. Depending on the choice of function there follows a request to which value the function generator is going
to be applied: or .
4. Adjust the parameters as you desire, like offset, amplitude and frequency for a sine wave, for example.
5. Do not forget to adjust the overall limits of voltage, current and power, which you can access with touch
area .
When entering function generator mode, those limits are reset to safe values, which can
prevent the function from working at all. For example, if you apply the selected function
to the input current, then the overall current limit should no interfere and should at least
be as high as offset + amplitude.
Setting the various functions is described below. After setting it up, the function can be loaded.
► How to load a function:
1. After setting the values for the required signal generation, tap on the
touch area .
The device will then load the data into the internal controller and changes the
display. Shortly afterwards the static values are set (voltage, power, current),
the DC input is switched on and the touch area released. Only
then the function can be started.
The static values are applied to the DC input immediately after loading the function, because it
switches the DC input on automatically in order to create the start situation. These static values
represent start and end values for the progress of the function.