The frequency parameter sets the pole frequency associated with a voltage bandwidth range. The
power-on default for each range is the minimum frequency. This is optimized for no overshoot with the
worst-case load capacitance for that range. If the load capacitance is not worst-case, or if some
output overshoot is acceptable, the output voltage transition times can be reduced by increasing the
frequency limit.
Front Panel Menu Reference SCPI Command
Select Output\Advanced\Bandwidth.
Select a bandwidth from the ranges listed. Then press Select.
Optionally, enter a different frequency limitfor the specified
range. Then press Select.
To selecta voltage bandwidth:
VOLT:BWID HIGH1,(@1)
To selecta different frequency limit, use:
VOLT:BWID:LEV HIGH1, <frequency>, (@1)
Set the Output Turn-Off Mode
This information applies to Keysight Models N678xA SMU only.
This lets you specify high impedance or low impedance mode at output turn-on and turn-off.
Low impedance - At turn-on the output relays are closed after which the output is programmed to the
set value. At turn-off the output is first programmed to zero, after which the output relays are opened.
High impedance – At turn-on the output is programmed to the set value after which the output relays
are closed. At turn-off the output relays are opened while the output remains at its set value. This
reduces current pulses that may be undesirable in some applications.
Front Panel Menu Reference SCPI Command
Select Output\Advanced\Tmode.
Select either High or Low impedance. Then press Select.
To setoutput 1 to a high impedance mode:
OUTP:TMOD HIGHZ,(@1)
Programming an Input Short
This information applies to Keysight Models N679xA only.
This simulates a short circuit on the input of the N679xA load module. It works in all priority modes - it
temporarily overrides input and slew settings. Note that the output on/off and the output protection
functions take precedence over an input short. An input-short condition is annunciated by the SH
status bit.
Front Panel Menu Reference SCPI Command
Select Output\Short.
Check Enable short to short the input. Uncheck to open
the short. Then press Select.
To short output 1:
OUTP:SHOR ON,(@1)
4 Operating the Power System
102 Keysight N6700C Operating and Service Guide
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