Source subsystem - phase – AMETEK Lx Series II Programming Manual User Manual
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Programming Manual
Lx \ Ls Series II
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4.20 Source Subsystem - Phase
This subsystem programs the output phases of the AC source. When phase commands are used
to program single-phase units, the only discernible effect in using the phase commands is to
cause an instantaneous shift in the output waveform phase.
Subsystem Syntax
[SOURce:]
PHASe
[:IMMediate]
Sets the output phase
:MODE
Sets the phase mode (FIX|STEP|PULS|LIST)
:TRIGgered
Sets the triggered phase (step or pulse mode only)
PHASe
Phase Selectable
This commands sets the phase of the output voltage waveform relative to an internal reference.
The phase angle is programmed in degrees. Positive phase angles are used to program the
leading phase, and negative phase angles are used to program the lagging phase.
The PHASe command is not influenced by INSTrument:COUPle ALL. It applies only to the current
output phase selected by INSTrument:NSELect.
Command Syntax
[SOURce:]PHASe[IMMediate]
Parameters
-360º through +360º
*RST Value
phase ø1 = 0°, phase ø2 = 240°, phase ø3 = 120°
Examples
PHAS 45
PHASE MAX
Query Syntax
[SOURce:]PHASe?
Returned Parameters
Related Commands
PHAS:MODE
PHAS:TRIG
PHASe:MODE
Phase Selectable
This command determines how the output phase is controlled during a triggered output transient.
The choices are:
FIXed
The output phase is unaffected by a triggered output transient.
STEP
The output phase is programmed to the value set by PHASe:TRIGgered
when a triggered transient occurs.
PULSe
The output phase is changed to the value set by PHASe:TRIGgered for a
duration determined by the pulse commands.
LIST
The waveform shape is controlled by the phase list when a triggered
transient occurs.
Command Syntax
[SOURce:]PHASe:MODE
Parameters
FIXed | STEP | PULSe | LIST
*RST Value
FIX
Examples
PHAS:MODE LIST
PHAS:MODE FIX
Query Syntax
[SOURce:]PHASe:MODE?
Returned Parameters
Related Commands
PHAS:TRIG
PHAS
PHASe:TRIGgered