Keysight Technologies N6700C Serie Guide D'utilisation page 108

4 Operating the Power System
To determine which power modules are installed in your mainframe, select System\About\Module
from the front panel. For models N676xA, send OUTPut:PMODe? to query the preferred turn-on mode.
For models N678xA, send FUNCtion? to query the priority mode that has been set.
To determine the actual turn-on delay between the "on" event (such as pressing the Output On key or
sending an Output On command), you must add the programmed turn-on delay to the minimum delay
offset as shown in the following example. In this example, if you program delay values of 10 ms, 20 ms,
30 ms, and 40 ms for output channels 1 through 4 respectively, the actual output delays will be 68 ms,
45 ms, 81 ms, and 72 ms for output channels 1 through 4.
To synchronize power modules with different minimum delay offsets as shown above, you can specify
a common delay offset parameter. By setting the common delay offset to be greater than or equal to
the largest minimum delay offset, you can synchronize the programmed turn-on delays as shown in
the following example.
Since there will be an additional delay due to the common delay offset, you will need to account for
the additional delay time. As shown in the previous example, if you program a common delay of 60 ms
and user-programmed delays of 10 ms, 20 ms, 30 ms, and 40 ms for output channels 1 through 4, the
actual output delays from the "on" event will be 70 ms, 80 ms, 90 ms, and 100 ms respectively.
Even though this 60 ms delay offset will be seen on all outputs, the additional delay time will not affect
most applications because the relative delay times between output module turn-on will still be 10 ms,
20, ms, 30 ms, and 40 ms – the exact values originally specified.
Step 1. Enable the Synchronization Function
Output turn-on synchronization must be enabled on the mainframe as follows:
Keysight N6700C Series User's Guide 107