6 - Menu
17
QPX750 Instruction Manual
6.1.2
Analog Control
Menu>Instrument>Analog Control
Analog signal connections V CONTROL and I CONTROL are available from the terminal block on the
‘Rear Panel’. These can provide quasi-analog control
of Output Voltage and Current Limit, respectively.
Control Type:
·
None:
deselects the analog input, output voltage is
controlled by
Vset
and
Iset
·
V only:
Enables analog control of the output voltage
and disables
Vset
from front panel and remote.
·
I Only:
Enables analog control of the output and
disables
Ise
t from front panel and remote.
·
V&I:
Enables analog control of both output voltage
and output current.
Range Selected:
Sets the control voltage full scale range. Used to
control
Vset, Iset
or
V&I
·
0…10V
·
0…5V
EXAMPLE
Setting:
Range
to 50V,
Control type
to
V&I
and
Range selected
to 0…10V.
Supply 0-5 volts into VCONTROL with respect to COMMON from a floating source i.e.,
PSU.
Applying 0V will result in 0V appearing on the Output Terminals
Applying 1V will result in 5V appearing on the Output Terminals
NOTE
The inputs are read 4 times per second by the A-
to-D converter and the output is set according to
the selected input scaling range. See 'Terminal
Block’ for hardware configuration details. When
Analog Control is active, the parameter fields are
no longer editable for the activated control type
as the output is now controlled by the input on
the rear terminal block.
