4 Operating the Power System
96 Keysight N6700 User’s Guide
Output Groups
Output grouping does not apply to Keysight Models N678xA SMU.
Output channels can be configured or “grouped” to create a single
output with higher current and power capability. Almost all instrument
functionality is supported by grouped channels, including voltage and
current programming, measurements, status, step and list transients.
The following conditions apply:
Up to four output channels can be grouped per mainframe.
Output channels that are grouped must also be connected in
parallel as described in Chapter 2.
Grouped channels do not have to be adjacent, but they must have
identical model numbers and options installed.
The maximum output current is the sum of the maximum of each
channel in the group.
Low current measurement ranges should not be used with grouped
channels, otherwise a measurement overload error will occur. Low
current output ranges, however, can be used.
Over-current protection delay has a slightly slower response time
(~10 ms) and slightly less resolution than an ungrouped channel.
When output channels have been grouped, they are addressed
using the channel number of the
channel in the group.
Power limiting should not be used when Keysight N673xB, N674xB,
and N677xA
power modules are grouped. Refer to Appendix C.
Select
.
In the matrix that appears,
select the channels you want
to group. Each row defines a
separate group.
To configure a group of channels:
SYST:GRO:DEF (@2,3,4)
This groups channels 2 through 4. To
address the group, use channel 2.
To return grouped channels back to an ungrouped state, first remove the
parallel connections between channels and proceed as follows:
Select
.
In the matrix, place each
output channel in its own
separate group.
To ungroup all channels:
SYST:GRO:DEL:ALL
Reboot the unit for the changes to take effect.
Cycle AC power.
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