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PSI 9000 2U Series
PSI 9000 2U Series • DC Laboratory Power Supply • User Manual
3.9.4 Manual operation
3.9.4.1 Function selection and control
Using the touchscreen one of the functions described above can be called
up, configured and controlled. Selection and configuration are only possible
when the output is switched off.
►
How to select a function and adjust parameters
1.
Tap the touch area
on the main screen. If the menu does not appear it is because the DC
output 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, limits which can prevent the function from working are
reset to safe values. For example, if you apply the selected function to the output current, then
the overall current limit should not interfere and should at least be as high as amplitude.
Setting the various functions is described below. Once a function is set up it 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 output is switched on and the touch area
enabled.
Only then can the function be started.
•
The static values are applied to the DC output immediately after loading the function, because
it switches the DC output on automatically in order to settle the start situation. These static val-
ues represent start and end values for the progress of the function, so that the function does
not need to start from 0. Only exception: when applying any function to the current (I), there is
no adjustable static current value, so the function would always start from 0 A.
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