AMETEK BPS Series Programming Manual - Manual (Page 146)

AMETEK Programmable Power BPS / MX / RS Series SCPI Programming Manual
146 Manual P/N 7003-961 Rev AA
6.2.8 Individual Phases
On three phase models or configurations, the following functions can be controlled
separately on each phase:
• VOLTage
• CURRent
• PHASe
• FUNCtion
• MEASure
• FETCh
• CALibrate
Selecting a Phase
Two commands determine which output phase or phases receive commands in the three
phase mode. These are:
INSTrument:COUPle ALL | NONE
INSTrument:NSELect <n>
The *RST setting for INSTrument:COUPle is NONE. This setting causes programming
commands to be sent to the selected output phases only.
To send a programming command to all of the output phases, set INSTrument:COUPle to
ALL. For individual phase programming use ALL, then select the desired output to receive
the command with INSTrument:NSELect. For example, when the commands
INSTrument:COUPle NONE
INSTrument:NSELect 2
are sent, all subsequent voltage commands will go to output phase 2, and all measurement
queries will return readings from output phase 2.
Note: The INSTrument:COUPle command has no effect on queries. In the
three-phase mode, queries are always directed to the output selected
by INSTrument:NSELect.
Programming the Output Phase
You can control the phase of the ac voltage waveform relative to an internal reference or to
phase A with:
PHASe <n>
which sets the phase in degrees. If <n> is positive, the voltage waveform leads the internal
reference.
The INSTrument:COUPle setting is ignored by the PHASe command - it always controls the
output selected by INSTrument:NSELect.