Keysight Technologies N6700C Serie Guide D'utilisation page 100

If you have Option 761 installed, the normal operating mode of the relay is to open and close as the
output is turned on or off. The relays are only opened or closed when the output is at a safe state (zero
voltage; zero current). Note however, that you can program the output state on or off while leaving the
relay state unchanged.
If you have Option 760 installed, you can also reverse the polarity of the output and sense terminals.
Note that this command briefly turns the output off while the output and sense terminal polarities are
switched. Also note that if this option is installed in Model N6742B, the maximum output current will
be limited to 10A.
Front Panel Menu Reference
Select Output\Advanced\Pol.
Check the Reverse box. Uncheck the Reverse box to return the
polarity to normal. Then press Select.
When the output polarity has been reversed, the voltage meter on the front panel
display will show a bar over the voltage reading:
Set the Output Bandwidth
This information applies to Keysight Models N678xA SMU only.
Keysight Models N678xA SMU have several voltage bandwidth settings that let you optimize output
response time with capacitive loads.
The Low bandwidth setting provides stability with a wide range of capacitive loads. Additional settings
provide faster output response when the load capacitance is restricted to smaller values.
If capacitive loads cause the output to oscillate on the Low bandwidth or any other bandwidth setting,
a protection function will detect the oscillation and latch the output off. This condition is annunciated
by the OSC status bit. Oscillation usually occurs with load capacitances that fall outside the indicated
ranges. At power-on the oscillation protection function is enabled.
Select a bandwidth according to the following load capacitances and load lead lengths:
Setting Load
Capacitance
Low 0–150 μF
High1 0–1 μF
High2 0–7 μF
High3 7–150 μF
Note 1 Refer to Keysight N678xA SMU Wiring
Keysight N6700C Series User's Guide
To switch the output and sense terminal polarities
of output 1:
OUTP:REL:POL REV,(@1)
To return the polarities back to normal:
OUTP:REL:POL NORM,(@1)
Sensing Maximum distance from sense
point to capacitor
Full lead length 1
Local or Remote
Remote only 6 inches (155 mm)
Remote only 6 inches (155 mm)
Remote only 6 inches (155 mm)
for additional information on allowable load lead lengths.
4 Operating the Power System
SCPI Command
ESR
@100 kHz
50 to 200 mΩ
50 to 200 mΩ
50 to 200 mΩ
50 to 200 mΩ
Minimum
frequency
1440 Hz
33,000 Hz
20,500 Hz
8300 Hz
99