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Instrument subsystem – AMETEK Lx Series II Programming Manual User Manual

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Programming Manual

Lx \ Ls Series II

42

4.6

Instrument Subsystem

This subsystem programs the three-phase output capability of the AC Power Source.

Subsystem Syntax

INSTrument
:COUPle ALL | NONE Couple all phases for programming
:NSELect

Select the output phase to program (1|2|3)

:SELect

Select the output phase to program (OUTP1|OUTP2|OUTP3)

INSTrument:COUPle

In a three-phase power source it is convenient to set parameters of all three output phases
simultaneously with one programming command. When INST:COUP ALL is programmed,
sending a command to any phase will result in that command being sent to all three phases.

INSTrument:COUPle only affects the operation of subsequent commands. It does not by itself
immediately affect the AC source's output. The commands that are affected by
INSTrument:COUPle are those with the designation: Phase Selectable.

INSTrument:COUPle has no affect on queries. There is no way to query more than one phase
with a single command. Directing queries to individual phases is done with INSTrument:NSELect.

Command Syntax

INSTrument:COUPle

Parameters

ALL|NONE

*RST Value

ALL

Examples

INST:COUP ALL

Query Syntax

INSTrument:COUPle?

Returned Parameters

Related Commands

INST:NSEL

INSTrument:NSELect
INSTrument:SELect

These commands allow the selection of individual outputs in a three-phase model for subsequent
commands or queries. Their operation is dependent on the setting of INSTrument:COUPle. If
INST:COUP NONE is programmed, then the phase selectable commands are sent only to the
particular output phase set by INSTrument:NSELect. If INST:COUP ALL is programmed, then all
commands are sent to all three output phases.

Note: If the power source is in SINGLE phase mode or does not support 3 phase mode of
operation, an INST:NSEL 2 or INST:NSEL 3 command will result in a

–222,”Data out of range”

error.

INSTrument:NSELect selects the phase by its number, while INSTrument:SELect references it by
name. These commands also select which output phase returns data when a query is sent.

Command Syntax

INSTrument:NSELect

INSTrument:SELect

Parameters

For INST:NSEL: 1 | 2 | 3

For INST:SEL: OUTPut1 | OUTPut2 | OUTPut3

*RST Value

1 or OUTPut1

Examples

INST:NSEL 3

Query Syntax

INSTrument:NSELect?

Returned Parameters

Related Commands

INST:COUP