Operating the Power System 4
Series N6700 User’s Guide 47
For models with multiple ranges, you can select a lower range if you
need better output resolution.
Front Panel: SCPI Command:
Press the Current key.
Select Low range and press Select.
To select the lower range, program a
value that falls within the range:
CURR:RANG 1,(@1)
Enable the Output
Front Panel: SCPI Command:
To enable the selected output,
press the On/Off key.
To enable/disable ALL outputs with
the On/Off key, select
System\Preferences\Keys.
Check On/Off affects all channels.
The ON/Off key will now be active
on ALL output channels.
To enable only output 1:
OUTP ON,(@1)
To enable outputs 1-4:
OUTP ON,(@1:4)
Because of internal circuit start-up procedures and any installed
relay options, output on may take between 35 and 50 milliseconds to
complete its function. Conversely, output off may take between 20
and 25 milliseconds to complete its function.
To mitigate these built-in delays, you can program the output to zero
volts rather than using the output on/off function.
Sequence Multiple Outputs
You can specify a turn-on and turn-off delay to control the power-up
and power-down sequencing of the output channels in relation to
each other.
Front Panel: SCPI Command:
Press the Channel key to select an
output. Then select Output\Delay.
Select either Turn-on or Turn-off.
Enter a delay in seconds, then
press Select.
Select System\Preferences\Keys.
Check On/Off affects all channels.
To program a 50 millisecond turn-on
delay for output 1 and a 100
millisecond turn-on delay for output 2:
OUTP:DEL:RISE .05,(@1)
OUTP:DEL:RISE .1,(@2)
To program a 200 millisecond turn-off
delay for outputs 3 and 4:
OUTP:DEL:FALL .2,(@3,4)
Output channel turn-on and turn-off characteristics vary across the
three module types - DC Power, Autoranging, and Precision (Refer to
Chapter 1, “Model Differences”). When output channels of the same
module type are programmed on-to-off or off-to-on, output
sequencing is precisely determined by the programmed delays.
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