6RL SERIES OPERATION MANUAL
SECTION 6: FRONT PANEL OPERATION
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2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual
Page 75 of 204
values, when inverted, indicates the assignment of the knob. In the example in the
figure it has U and P assigned, which means U/P mode.
Depending on the selection, the right rotary knob will be assigned different set values. The
left knob is always assigned to the voltage.
Note: In order to change the other values, like P or R while U/I is active, and without
switching the assignment all the time, direct input can be used.
The actual operating mode, which is only indicated while the DC Input is switched on, solely
depends only on the set values.
6.4.6
Manual Adjustment of Set Values
The set values for voltage, current and power are the fundamental operating criteria of a DC
load and hence the two rotary knobs on the front of the unit are always assigned to two of
the values when in manual operation.
As fourth control value is the internal resistance setting, available only when the resistance
mode (R mode) is activate.
Note: Set values can be entered manually in two ways: via rotary knob or direct input.
Entering a value changes it immediately, regardless if the DC Input is on or off.
When adjusting set values, upper or lower limits may come into effect. See section 6.4.4,
“Adjustment or User Limits” on page 74“. Once a limit is reached, the display will show an
indication like “Limit: U-max” etc. for about 1.5 seconds next 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) and power (P, right),
and it is required to set the current, then the assignments can be changed by tap-
ping this touch area. A set of selection fields then appears.
3.
After successful selection, the desired value can be set within the defined limits.
Selecting a digit is done by pushing the rotary knob, which shifts the cursor from
right to left (selected digit will be underlined):
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