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Verfügbare Sprachen
Verfügbare Sprachen
The operating modes are listed again in the table below.
A more detailed description can be found in section 6.4.2 Output characteristics
HV output on page 54.
Control
R
< P
LOAD
Mode
I = I
Current regulation
REF
P = P
REF
U = U
REF
Note: Option 41 also contains option 01 (outputs on back)
7 . 2 . 1 0 .
O p t i o n 4 6 : R a m p C o n t r o l
potentiometer, by the analogue interface, the Digital Interface or Option 82) and
as well after switch on the HV-button. The slew rate of the switching edge (du/dt)
can be adjusted using the trimmer '1-100 s' at the front of the unit (slew rate 1 to
100 s relating to U
).
NOM
NOTE: If output voltage is switched off using the HV-button, the Stand by-Contact
of the analog interface or the interlock-function (Option 02) ramp control is
disabled for safety reasons.
7 . 2 . 1 1 .
O p t i o n 5 2 : R a p i d d i s c h a r g e c i r c u i t
A rapid discharge circuit is built into the unit. Using an internal load, this
decreases the output voltage to 1% of output voltage U
second during unit shutdown phase.
7 . 2 . 1 2 .
O p t i o n 5 5 : A R C d e t e c t i o n v i a p o t e n t i a l - f r e e c o n t a c t
The ARC detection system contains a du/dt detector for identifying output voltage
flashovers. A signal indicating the occurrence of a flashover is sent to the analog
interface via a potential-free contact.
(Flashover detected ≡ Contact (pin 14/15) closed during 4 seconds).
ARC detection is triggered under the following conditions:
du ≥ 10% U
(change in output voltage or spike pulses)
NOM
dt ≥ 100 ms
N O T E
ARC detection may be triggered under load conditions when the high
voltage power supply is shut down using the HV button.
2
/ I
P
/ I
REF
REF
REF
REF
2
< U
/ P
REF
Power output
regulation
If this option is enabled by turning-on the 'On/Off' switch
(LED 'Ramp Control Active' glows), the control system
regulates the controlled rise or drop of the output voltage
of the power supply unit each time the reference value is
changed (triggered f.i. by adjusting the reference value
User Manual PNC – V 1.16
< R
R
> U
LOAD
LOAD
REF
Voltage regulation
in less than one
NOM
59
2
/ P
REF
REF
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