heinzinger PNC-Serie Betriebsanleitung Seite 58

56
A ) G E N E R A L I N F O R M A T I O N
Unassigned contacts may not be connected.
A shielded cable with shielding on the GND (unit earth) as the connecting cable
should be used.
Maximum length of connecting cable is limited to 6 m.
The reference ground of the analog interface is connected to unit earth.
Only set the Ext./Int. switch to 'Ext.' if both I
CAUTION
Never put the power supply unit into operation when the analog
interface is set to 'Ext.' and if no control voltage for I
is supplied. The unit output voltage or current may then reach an
undefined value.
B ) A D J U S T I N G T H E O U T P U T V O L T A G E U
H O W T O P R O C E E D
Supply I
I varies proportional to the supplied voltage
REF
(0 -10V ≡ 0 ... I
Supply U
U varies proportional to the supplied voltage
REF
(0 -10V ≡ 0 ... U
Set Ext. / Int. switch to 'Ext.'.
C ) S W I T C H T H E U N I T T O S T A N D - B Y M O D E O R O P E R A T I N G M O D E .
H O W T O P R O C E E D
Connect pin 9 and 10 of the analog interface via a potential-free contact ->
standby mode:
Output disabled, no voltage or current flow [HV OFF].
No interconnection between pin 9 and 10 of analog interface
-> no standby mode: Output remains enabled [HV ON].
-> The output can be enabled by pressing the HV button.
[HV ON].
CAUTION
The HV button glows even though output is disabled and power
is off.
O R O U T P U T C U R R E N T I
R E F
via pin 7 of the analog interface:
REF
).
NOM
via pin 8 of the analog interface:
REF
).
NOM
and U are supplied.
REF REF
and U
REF
R E F
REF