Heinzinger electronic GmbH
Phone: +49 (0) 8031 2458 0
www.heinzinger.com
Anton-Jakob-Str. 4, 83026 Rosenheim
Fax: + 49 (0) 8031 2458 58
Germany
Page 64
ERS COMPACT
3.5.6
Manual adjustment of set values (standard models)
The set values for voltage, current and power are the fundamental operating possibilities of a power supply and
hence the two rotary knobs on the front of the device are always assigned to two of the values in manual operation.
For each mode, sink and source, the device has separately adjustable set values for current, power and resistance
which are labeled accordingly in the display. “
(PS)
” stands for source mode while “
(EL)
” is for sink mode.
The resistance value is connected to the “R mode” which has to be activated separately, for instance via the quick
menu. Refer to
“3.5.3. Configuration via the menu”
as well as
“3.3.4. Internal resistance regulation (source mode)”
and
“3.3.5. Resistance regulation / constant resistance (sink mode)”
for details.
Set values can be entered manually in two ways, via
rotary knob
or
direct input
. While the rotary knobs adjust
values continuously, entering them via numeric pad can be used to change values in bigger steps.
Changing a value is immediately submitted, no matter if the DC terminal is switched on or off.
When adjusting set values, upper and lower limits may come into effect. See section “3.5.4.
Adjustment limits”. Once a limit is reached, the display will show a small note like “Limit: U-max”
etc. for a short time in proximity to the adjusted value.
►
How to adjust set values U, I, P or R with the rotary knobs
1.
First check if the value you want to change is already assigned to one of the rotary
knobs. The main screen displays the assignment as depicted in the figure to the right.
2.
If, as shown in the example, the assignment is voltage (U, left knob) and current (I,
right knob), and it’s required to set the power, then the assignment of the right-hand
knob can be changed by tapping on its depiction until it shows “P”. In the left-hand
display area one of the set values of power, for sink or source mode, is indicated as
selected by its unit being display inverted.
3.
After successful selection, the desired value can be set within the defined limits.
Selecting the next digit is
done by pushing the rotary knob which shifts the cursor from right to left (selected digit will be underlined):
►How to adjust values via direct input:
1.
In the main screen, depending on the rotary knob assignment, values
can be set for voltage (U), current (I), power (P) or resistance (R) via
direct input by tapping on one of the small ten-key pad symbols, for
example the one in the blue area if you wanted to adjust the voltage.
2.
Enter the required value using the ten-key pad. Similar to a pocket
calculator the key
clears the input. Decimal values are set
by tapping the point key. For example, 54.3 V is entered with
and
.
3.
Unless the new values isn’t rejected for some reason, the display would
then switch back to the main page and the set value would be submitted
to the DC terminal.
Upon entering a value which exceeds the corresponding limit, a note would pop up, the value
in the frame reset to 0 and not be accepted and submitted.