User manual

47
Instruction Manual
PS 8000 3U Series
EN
Date: 01-24-2012
Operating the device
6.3 Other control elements
6.3.1 Rotary knobs
Both of the rotary knobs have a push button function. Pushing
any or both of these will effect following:
a) Fine adjustment mode (Fine)
A short push of any of both buttons activates or deactivates the
ne adjustment mode for manual operation. If „Fine“ is active,
all set values, thresholds and limits can be adjusted in smallest
possible steps, no matter what mode is currently active (preset,
memory ect.). It is indicated by the status text „Fine“ in the
status area. Also see section „6.4. Adjusting set values“ below.
b) Device setup
Pushing both buttons together for >3s while the output is off
changes to device setup. It is left the same way.
6.4 Adjusting set values
1. In manual operation
During manual operation, both rotary knobs are used to conti-
nuously adjust the set values of voltage and current from 0%
to 100% nominal value in predened steps (see table). In order
to set the values for OVP and UVL the button Preset UVL/OVP
has to pushed once or twice. In order to set the power set value
the button Preset Power has to be pushed.
Note
The OVP value can be lower than the voltage set value and
will cause an OV alarm as soon as the output is switched on
and the actual voltage reaches the OVP threshold!
Setting values manually can be done in ne or coarse steps,
whereas coarse is default. Fine is required to be activated by
the one of rotary knob pushbuttons and has a step width of 1.
For coarse adjustment, following step widths apply in de-
pendency of the nominal values (also refer to technical specs):
Voltage / OVP / UVL Current
Nom. val. Coarse Fine Nom. val. Coarse Fine
40V 0.25V 10mV 30A 0.2A 10mA
80V 0.5V 10mV 60A 0.5A 10mA
160V 1V 100mV 70A 0.5A 10mA
200V 2V 100mV 90A 1A 10mA
240V 2V 100mV 120A 1A 100mA
400V 2V 100mV 140A 1A 100mA
500V 5V 100mV 210/250A 2A 100mA
600V 5V 100mV 340A 2A 100mA
1000V 10V 1V 510A 5A 100mA
1500V 10V 1V
Power
Nominal value Coarse Fine
3.3/5kW 50W 1W
6.6/10kW 100W 10W
15kW 100W 10W
Note
The resolution of the set value adjustment in some cases is,
depending on the nominal values, higher than the one of the
output voltage. Thus it can happen that the output voltage
only changes every 2 or 3 steps.
2. In remote control via analogue interface
See section „10. Analogue interface“.
3. In remote control via digital interface card
See section „9. Digital interface cards“.