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Source subsystem - phase – AMETEK Lx Series II Programming Manual User Manual

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Programming Manual

Lx \ Ls Series II

86

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