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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
PSB 9000 3U Series
3.11.4 Manual operation
3.11.4.1 Function selection and control
Via the touchscreen one of the functions described in
up, configured and controlled. Selection and configuration are only possible
when the DC terminal is switched off.
►
How to select a function and adjust parameters
1.
While the DC terminal is switched off tap the touch area
on the main screen.
2.
In the menu tap on the touch area
and then on the desired function.
Note: this touch area is locked 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.
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 output
current (source mode), then the overall current limit should not interfere and should at least be
as high as 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 (power and voltage or cur-
rent), the DC terminal is switched on and the touch area
enabled.
Only then can the function be started.
The static values are applied to the DC terminal immediately after loading the function and
in order to set the start situation. They represent start and end values for the progress of the
function, so that it doesn’t need to start from 0. Only exception: when applying a function to the
current (I), there is no adjustable static current value, so the function would always start from 0 A.
►
How to start and stop a function
1.
The function can be started either by tapping
or pushing the “On/Off” button, if the DC terminal
is currently switched off. The function then starts immediately. In case START is used while the DC terminal
is still switched off, it will be switched on automatically.
2.
The function can be
stop
ped either by tapping
or operating the “On/Off” button. However, there
is a difference:
a) The
button stops only the function, the DC terminal remains ON with the static values.
b) The “On/Off“ button stops the function and switches the DC terminal off.
Any device alarm (overvoltage, overtemperature etc.), protection (OPP, OCP) or event with
action = Alarm stops the function progress automatically, switches off the DC terminal and
reports the alarm.
