As shown in the figure, you can configure digital ports pins 3 through 7 to provide the OnCouple and
OffCouple signals that enable or disable the output. The output is enabled or disabled when the
corresponding signal is true. Refer to Output Couple Control for more information on configuring the
digital port pins.
Lastly, you must enable output sequencing to use OnCouple and OffCouple signals to enable or
disable the output. Refer to Enable Output Sequencing below.
Sequencing Multiple Units
To sequence the output turn-on for multiple units:
1. Connect and configure the digital connector pins of all units.
2. Enable the sequence function on each unit.
3. Specify the user-programmed turn-on delay for each unit.
4. This step is required if you have power supplies with different minimum delay offsets (see below).
Specify a common delay offset for all of the sequenced units. The common delay offset must be larger
or equal to the largest maximum delay offset. When the common delay offset completes, the user-
programmed turn-on delays will start.
Connect and Configure the Digital Connector Pins
The digital connector pins of the sequenced units must be connected together and configured. Refer
to Output Couple Control for more information.
Enable Output Sequencing
Output turn-on sequencing must be enabled on each unit that will participate in output turn-on
synchronization.
Front Panel Menu Reference SCPI Command
Select Output\Sequence\Couple.
Check Enable to enable sequencing.
Uncheck to disable.
To enable, send:
OUTP:COUP ON
To disable, send:
OUTP:COUP OFF
Specify the Turn-On and Turn-Off Delays for each Unit
Turn-on delays can be specified for all coupled units. Any delay sequence can be implemented.There
are no restrictions on what the sequence is or what unit comes up first.
Front Panel Menu Reference SCPI Command
Select Output\Sequence\Couple.
Specify the Turn-on delay in seconds.
Repeat for each additional unit.
Program a turn-on delay:
OUTP:DEL:RISE .02
Repeat for each instrument.
Keysight RP7900 Series Operating and Service Guide 135
4 Using the Regenerative Power System
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