
Operating the DC Power Analyzer 3
Model N6705A User’s Guide 43
Output Ratings
You can quickly view the output ratings, model numbers and options
of all power modules installed in your instrument. Press the Settings
key and then press the Properties key. The Power Supply Ratings
window will appear.
Power Limit
For the majority of Agilent N6705A DC Power Analyzer
configurations, full power is available from all installed power
modules or outputs. However, it is possible to configure a DC Power
Analyzer in which the combined ratings of the outputs exceed the
power rating of the mainframe; which is 600 W.
NOTE
Note that the DC Power Analyzer will operate normally as long as the combined
output power is within the power rating of the mainframe.
Mainframe Power Limit
If the combined power drawn from all of the outputs exceeds the
mainframe’s power rating of 600 W, a power fault protection event
will occur. This causes ALL outputs to turn off and remain off until a
protection clear command is given. A status bit (PF) will indicate that
a power fault protection event has occurred.
The power allocation function lets you limit the power that can be
sourced from individual outputs, thereby preventing the combined
power from exceeding the mainframe’s rated output power and
causing all the outputs to turn off.
Output Power Limit
When the power limit has been set to a value less than the maximum
rating of an output, and either the output voltage or the output
current increases to a point where the module exceeds the power
limit setting, the module’s power limit function will activate.
NOTE
If the power limit is left at the maximum rating, the power module will not
enable its power limit function.
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