Hioki 9605-01 Instruction Manual

INSTRUCTION MANUAL

9605-01

HARMONIC

MEASUREMENTS UNIT

Contents

Introduction i

Safety Notes ii

Chapter 1 Overview and Features 1

1.1 Product Overview 1

1.2 Features

Chapter 2 Key Operations and the Screen Configuration 3

2.1 Key Operations 3

2.2 Screen Configuration

Chapter 3 Setting the Basic Functions 5

3.1 Setting the Wiring Mode (1P2W to 3P4W) 5

3.2 Analysis Channel Selection

3.3 PLL Source Setting

3.4 Wiring Conversion Function

3.5 Setting the Coupling Mode

3.6 Zero Adjustment Operation

3.7 Averaging Setting

3.8 Measurement by External Trigger

3.9 Sort Functions

10
11
12
13

2

3

6
7
8
9

Chapter 4 Harmonic Measurement 15

4.1 Harmonic Measurement 16

4.2 Harmonic Analysis Procedure

4.3 Graph Display of Harmonics

4.4 List Display of Harmonics

4.5 Vector Display of Harmonics

4.6 Waveform Display

4.7 Measurement using an External Sync Signal

4.7.1 Theory of Operation 32

4.7.2 Setting Procedure 34

18
19
23
26
28
32

Chapter 5 Hold Function 35

Chapter 6 Output to Floppy Disk/Printer 37

6.1 Selecting the Output Item to FDD/Printer 38

6.1.1 Output Setting in Harmonic Analysis Mode 38

6.2 Timer Control of Output 39

6.2.1 Harmonic Analysis 39

6.2.2 Relationship Between the Number of Output Items
and Interval Time 39

Chapter 7 External Control 43

7.1 EXT.CLOCK 43

7.2 TRIGGER.IN

7.3 TRIGGER.OUT

44
44

Chapter 8 GP-IB/RS-232C Interface 45

8.1 Overview 45

8.2 Event Registers

8.3 Command Reference

9.3.1 Command Reference Explanation 47

9.3.2 Specific Commands for Harmonic Analysis Function 48

8.4 Specific Commands Reference 65

8.5 Valid Commands for Each Status

8.6 Specific Command Tree

8.7 The Output Item Bits

46
47

67
69
71

Chapter 9 Specifications 73

Appendix APPENDIX 1

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Introduction

Thank you for purchasing the HIOKI "9605-01 HARMONIC
MEASUREMENTS UNIT." To obtain maximum performance from the
product, please read this manual first, and keep it handy for future reference.

･ The 3194 must be upgraded to support the 9605-01.

NOTE

･ This product is designed for installation in the 3194 MOTOR/HARMONIC

HiTESTER to enable harmonic analysis. For details on operation of the
3194, please refer to its instruction manual.

･ This product is a factory-fitted option. When the 3194 product is powered

on, you can check the installation on the screen. (Same as the 9605.)

･ For operating environment, maintenance, and disposal at end of life, the

same conditions apply as to the main 3194 product.

･ Because of differences in measurement principle, frequency response, and

accuracy, the values measured by the 9605-01 (effective voltage value,
effective current value, active power, and phase difference) may not agree
with values measured by 9600/9601/9602 products installed in the same
3194 product.

･ The 9605-01 does not save analysis data if there is a power failure. All data

values from before the power failure are treated as zero.

･ The D/A output is not possible for the analyzed data by the 9605-01.

i

Beforeuse

Before using the product, inspect it and check the operation to make sure
that the product was not damaged due to poor storage or transport
conditions. If damage is found, contact your dealer or HIOKI representative.

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Introduction

ii

R

R

W

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Safety Notes

This product is designed to conform to I EC 61010 Safety Standards, and

DANGE

has been thoroughly tested for safety prior to shipment. However,
mishandling during use could result in injury or death, as well as damage
to the product. Be certain that you understand the instructions and
precautions in the manual before use. We disclaim any responsibility for
accidents or injuries not resulting directly from product defects.

This Instruction Manual provides information and warnings essential for
operating this equipment in a safe manner and for maintaining it in safe
operating condition. Before using this equipment, be sure to carefully read
the following safety notes.
Read the Instruction Manual supplied with the 3194 product very carefully,
and follow the indications given under "

CAUTION

"

," and "

NOTE

."

DANGER

WARNING

," "

,"

Safety Symbols

This symbol is affixed to locations on the equipment where

the operator should consult corresponding topics in this
manual (which are also marked with the symbol) before
using relevant functions of the equipment.

In the manual, this mark indicates explanations which it is

particularly important that the user read before using the
equipment.

The following symbols are used in this Instruction Manual to indicate the
relative importance of cautions and warnings.

Indicates that incorrect operation presents extreme danger of

DANGE

accident resulting in death or serious injury to the user.

Indicates that incorrect operation presents significant danger

ARNING

CAUTION

of accident resulting in death or serious injury to the user.

Indicates that incorrect operation presents possibility of
injury to the user or damage to the equipment.

NOTE

Denotes items of advice related to performance of the
equipment or to its correct operation.

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Safety Notes

1

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Chapter 1

Overview and Features

1.1 Product Overview

Installing the 9605-01
MOTOR/HARMONIC HiTESTER enables voltage, current, and power
harmonic analysis to be carried out on the voltage and current waveforms
captured by an input unit, for single phase to three-phase four-wire lines. It
also provides list, a range of display options, including graph and vector
displays.

HARMONIC MEASUREMENTS UNIT

in a 3194

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1.1 Product Overview

2

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1.2 Features

Installing the 9605-01 HARMONIC MEASUREMENTS UNIT in a 3194
MOTOR/HARMONIC HiTESTER adds the following functions to the basic
functions of the 3194.

(1) Support for range of power lines

Harmonic analysis of voltage, current, and power can be carried out on lines
from single phase to three-phase four-wire. If the frequencies are the same,
up to three single phase lines can be analyzed simultaneously.
(On screen; however, the amount of data displayed on one page is limited to
50 records)

(2) A maximum of 3000th of analysis

A maximum of 3000th of high frequency analysis on basic frequency is
possible. Analysis of the secondary inverter including carrier frequency can
also be done.

(3) High frequency analysis using external synchronization signals

High frequency analysis using external synchronization signals as the base
standard is possible. For this reason, measurement of the phase change
amount against the base standard signals can also be done.

(4) Range of display options

The amplitude value, proportions, phase angle, and distortion of each
harmonic for voltage, current, and power can be found. The analysis results
can be displayed in a list, as a bar graph, or as a vector display.

(5) Floppy disk support

The analysis data can be saved to the floppy disk drive in the 3194, and a
periodic automatic save function is also available.

(6) Built-in printer (option)

This can be used to print required data, and for periodic automatic printing.
There is also a screen copy function.

NOTE

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1.2 Features

The IEC61000-3-2 analysis method is not supported.

3

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Chapter 2

Key Operations and the Screen

Configuration

2.1 Key Operations

For details on how to operate keys of the 3194, refer to Chapter 2 "Name
and Functions of Parts" in the instruction manual of the 3194.

2.2 Screen Configuration

When the 9605-01
3194, the following screen is added to the 3194 functionality.
Refer to Section 2.3.1, "Screen Configuration" in the instruction manual of
the 3194.

MEAS

screen

Harmonic

analysis

Graph display

List display

Vector display

Waveform display

HARMONIC MEASUREMENTS UNIT

is installed in the

STATUS

screen

Harmonic

analysis

Harmonic waveform
setting display

Output item selecting

Harmonic waveform
selecting screen

NOTE

────────────────────────────────────────────────────

･ In the Selection screen, the distortion (THD-R, THD-F) produced by 9605-01

analysis can be displayed, but not other data.

･ No waveform and graph colors change is possible.

2.1 Key Operations

4

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2.2 Screen Configuration

5

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Chapter 3

Setting the Basic Functions

This chapter describes the function settings when using the 9605-01.
For other functions, refer to the Instruction Manual supplied with the 3194
product.

NOTE

The following settings have no effect on harmonic analysis.
Selecting RMS/MEAN value, setting the phase polarity discrimination filter,
switching the waveform peak value, setting the response, setting the equation
for reactive power/apparent power, and setting the indications for out-of
range inputs

3.1 Setting the Wiring Mode (1P2W to 3P4W)

Set the wiring mode of the 3194.
For details, refer to Section 4.1, "Setting the Wiring Mode" in the instruction
manual of the 3194.

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3.1 Setting the Wiring Mode (1P2W to 3P4W)

6

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3.2 Analysis Channel Selection

You can select three input unit channels for harmonic analysis from the
input units (maximum three channels) in the 3194. If the frequencies are the
same, analysis on three single-phase channels is possible.

NOTE

1. Press the

STATUS

to move the cursor to "

key, then use the

HARM

," to display the

PAGE

keys

harmonic measurement setting screen. This
displays the selected wiring mode.

2. Use the

CURSOR

keys to select the "

WIRING

"

item.

3. Move the cursor to the channel to be analyzed
with the

CURSOR

keys, then press theF1"

SET

key to complete the setting.

･ The channel selection is always of adjacent input units, corresponding to the

wiring modes set on the 3194 product. If the 3194 product wiring mode is
set to 3P3W for each of channels 1 and 2 and channels 3 and 4, then the
selection becomes channels 1, 2, and 3. In this case, the third channel is
treated as single phase for analysis.

･ Up to three channels can be selected; a single-channel analysis specification

is not possible.

"

Wiring mode and selected channels

1ch 2ch 3ch 4ch 5ch 6ch Using channels

① 1P2W 1P2W 1P2W 1P2W 1P2W 1P2W 1+2+3, 2+3+4, 3+4+5, 4+5+6

② 1P3W/3P3W 1P2W 1P2W 1P2W 1P2W 12+3, 3+4+5, 4+5+6

③ 1P3W/3P3W 1P3W/3P3W 1P2W 1P2W 12+3, 34+5, 4+5+6

④ 1P3W/3P3W 1P3W/3P3W 1P3W/3P3W 12+3, 34+5, 56

⑤ 3V3A/3P4W 1P2W 1P2W 1P2W 123, 4+5+6

⑥ 3V3A/3P4W 1P3W/3P3W 1P2W 123, 45+6

⑦ 3V3A/3P4W 3V3A/3P4W 123, 456

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3.2 Analysis Channel Selection

7

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3.3 PLL Source Setting

A PLL source is required for analysis, and may be provided in one of the
following three ways.

(1) Input voltage or current serves as the source:

Waveforms are sampled at a frequency synchronized with the measured
voltage or current waveform to facilitate correct measurement.

(2) Internal fixed clock [Clock] frequency serves as the source:

Use this options when the input signal is not suitable as a source of PLL
synchronization, and the fundamental frequency of the signal for analysis is
50 Hz. In this case, measurement accuracy cannot be assured at frequencies
other than integer multiples of 50 Hz.

(3) An external sync signal [Ext(CH6) or Ext(Con)] serves as the source:

PLL-synchronized measurements for harmonic analysis can be made using an
external signal other than the input voltage or current waveform. Refer to
Section 4.7, "Measurement using an External Sync Signal."

NOTE

The PLL indicator at the upper right of the screen appears when the PLL is
unlocked, and is not visible when the PLL is locked. The source setting for
frequency measurement shares the same indicator.

1. Press the

STATUS

to move the cursor to "

key, then use the

HARM

," to display the

PAGE

keys

harmonic measurement setting screen.

2. Moving the cursor to "

CURSOR

keys displays the settings available for

PLL SOURCE

" with the

the PLL source in a window.

3. Use the

F1 "↓"

and

F2 "↑"

key to specify the

required item.

･ If the signal selected for the source setting is very distorted, if the level is

low for the range setting, or the signal frequency is not stable, the PLL
circuit may not function. In such cases accurate analysis is not possible.

･ If the three channels selected in Section 3.2 are separate systems with

different signal frequencies, the analysis results are only valid for the channel
for which the PLL source is set.

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3.3 PLL Source Setting

8

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3.4 Wiring Conversion Function

This function calculates equivalencies for 3V3A and 3P4W wiring (refer to
Appendices 6 and 7).

・For 3V3A wiring, calculates Δ-Y conversion to 3φ4W equivalent wiring.
・For 3P4W wiring, calculates Y-Δ conversion to 3φ3W equivalent wiring.

NOTE

Press the

STATUS

key, then use the

move the cursor to "

HARM

," to display the

PAGE

keys to

harmonic measurement setting screen.

・Δ-Y conversion calculation uses a virtual neutral point.
・High-harmonic analysis can begin after waveforms have been converted.

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3.4 Wiring Conversion Function

9

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3.5 Setting the Coupling Mode

For the channel of which the analysis results are shown on the screen only,
press the

SHIFT

key then use the
It is also possible to change the setting in the STATUS/Units screen.
Refer to Section 4.2, "Setting the Coupling Mode" in the instruction manual
of the 3194.

CURSOR

key to switch.

NOTE

･ When AC mode (coupling mode) is selected on the 3194 product, a DC

blocking filter is required on the input unit. Therefore, if the measurement
frequency is 10 Hz or below, or the waveform has a superimposed DC
component (e.g. a half-wave rectified signal), errors may become large.

･ Analysis results in the DC mode and analysis results in the AC+DC mode

are the same.

･ When the AC+DC or DC mode is selected, a value is shown with a

harmonic index of "0." This shows the DC component included in the
analysis data. However, the polarity is not displayed for the voltage and
current since the effective value is converted.

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3.5 Setting the Coupling Mode

10

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3.6 Zero Adjustment Operation

Zero adjustment must be carried out after warming up.

NOTE

1. Press the

STATUS

to move the cursor to "

key, then use the

HARM

," to display the

PAGE

keys

harmonic measurement setting screen.

2. Move the cursor to "

3. Press theF5"

ZERO ADj

WIRING.

"

" key to start zero

adjustment.

･ The operation is carried out for 3 channels simultaneously.
･ The operation takes about 3 seconds.
･ Carry out the operation with no inputs on either voltage or current.
･ Carry out the operation after degaussing (DMAG) when using the 9600 or

9602.

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3.6 Zero Adjustment Operation

11

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3.7 Averaging Setting

Analysis data is averaged in the 9605-01.

NOTE

1. Press the
to move the cursor to "

STATUS

key, then use the

HARM

harmonic measurement setting screen.

2. Move the cursor to "

AVERAGE

3. Select the item (amplitude or phase angle) to be
averaged.

Data other that required on the 9605-01 is not affected.

PAGE

keys

," to display the

"

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3.7 Averaging Setting

12

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3.8 Measurement by External Trigger

By setting an external trigger, analysis can be started when the trigger signal
is input. One window of analysis data is displayed, then the process stops.
By synchronizing the timing with an external device, a number of 3194
products can perform analysis simultaneously.

NOTE

1. Press the

STATUS

to move the cursor to "

key, then use the

HARM

," to display the

PAGE

keys

harmonic measurement setting screen.

2. Use the

CURSOR

keys to select the "

EXT TRIG

item.

3. Press theF2"ON" key, putting the product on

hold for a trigger.
When a trigger signal is input from the outside,
analysis starts.

･ The analysis always starts from a point at which the PLL source waveform

crosses the zero value, and there is therefore a delay of a maximum of one
cycle of the waveform with respect to the trigger signal.

･ This does not affect data on the 3194 product (other than the 9605-01).
･ The PLL should be locked.

"

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3.8 Measurement by External Trigger

13

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3.9 Sort Functions

All analyzed degrees are sorted by size from the largest, up to the 50th
harmonic order. The following sort methods are available:

(1) Independ

All measurements are sorted independently. However, the P of each channel
is set to the degree of the P

sum

value.

(2) According to U

U values are sorted by channel, and I and P values are sorted by the
respective degree for the respective channel, independently of P

sum

values.

(3) According to I

U values are sorted by channel, and U and P values are sorted by the
respective degree for the respective channel, independently of P

sum

values.

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3.9 Sort Functions

14

────────────────────────────────────────────────────

(4) According to U1/I1, U2/I2, U3/I3

Measurements are sorted by the specified parameter, and other parameters
are sorted for the respective degree.

Unsorted

NOTE

Sorted

The graph, list and vector displays are by harmonic order rather than by
degree. Therefore, in the vector display case, multiple degrees can be
displayed on the same screen.

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3.9 Sort Functions

15

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Chapter 4

Harmonic Measurement

This describes analysis using the 9605-01

UNIT

.
First refer to Chapter 3 "Preparations for Measurement" in the instruction
manual of the 3194. Pay special attention to the precautions listed in this
chapter.

HARMONIC MEASUREMENTS

────────────────────────────────────────────────────

16

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4.1 Harmonic Measurement

The 9605-01 HARMONIC MEASUREMENTS UNIT applies FFT (Fast­Fourier Transform) analysis to waveforms from the A/D converter for each
window, and can analyze voltage, current and power harmonics. Up to 3,000
degrees can be analyzed, and fundamental frequencies from 10 Hz to 4.5
kHz are supported.

NOTE

･ Because of differences in measurement principle, frequency response, and

accuracy, the values measured by the 9605-01 and 9600/9601/9602 products
installed in the same 3194 product may not agree. Similarly, values may not
agree with measurements made by other devices.

･ If the PLL synchronization range is 10 Hz to 17.5 Hz or 17.5 Hz to 35 Hz,

then the anti-aliasing filter of Fc ≒ 15 kHz is inserted. If the PLL
synchronization range is 35 Hz or more, then the anti-aliasing filter of Fc

≒ 120 kHz is inserted.

･ Although harmonics can be analyzed at up to 3,000 degrees, only a

maximum of 50 items can be displayed on the screen.

･ Because items not displayed are calculated internally at the same time, by

switching to the hold state and switching the screen, it is possible to read
simultaneous values for other analysis data.

･ Be sure to carry this out with the PLL in the locked state.
･ The harmonics which can be analyzed depend on the frequency of the PLL

source. For details see the Specifications.

･ Color specifications are not possible.
･ The zeroth index is displayed when using a 9600/9602 with AC+DC or DC

mode selected. This zeroth index is the DC component of the analyzed
waveform. In the voltage/current mode, effective values are computed, and
there is therefore no polarity. The accuracy of the zeroth index is not
specified.

･ When using 3P3W/3V3A mode, analysis results for power signify the total

values (ΣP). The power analysis results are shown for each channel, but
these have no significance. The total value (ΣP) is the same result for 3P3W
and 3V3A.

･ The phase angle indicates the phase angle of all data, taking the phase angle

of the fundamental from the PLL source as 0。. For the total value (ΣP) , the
phase angle is not displayed.

･ The phase difference indicates the phase difference of the current with

respect to the voltage on the same channel for each harmonic.

･ At less than 0.1% of range, internal circuit noise may appear in the

display.

･ When the rms value of voltage or current exceeds 130% of range, or when

the peak value of voltage or current exceeds crest factor, the value of
analysis data and power analysis data is shown in red.

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4.1 Harmonic Measurement

17

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Term/meaning

Effective voltage value,
effective current value,
active power

Fundamental
(component, level)

Harmonic (component, level)

Harmonic content

Harmonic phase angle

Harmonic voltage phase
angle, harmonic current
phase angle

Harmonic voltage-current
phase difference

Total harmonic

Found from waveform sampling at a sampling
frequency determined from the frequency of the
fundamental. Includes harmonics above the analyzed
number.

Fourier coefficient of fundamental component

Fourier coefficient second and subsequent harmonics

Taking the fundamental component level as 100%,
indicates the other harmonic components as
proportions.

Generic term for harmonic voltage phase angle,
harmonic current phase angle, and harmonic voltage
current phase difference

Taking the phase angle of the fundamental from the
PLL source as 0。, indicates the phase difference of
other voltage and current harmonics.

The phase difference between the voltage and current
for a particular harmonic

The total value of the harmonics being analyzed (from
2nd to limit of analysis)

Total harmonic distortion

PLL (Phase Locked Loop)

Anti-aliasing filter

THD-F: total harmonic content as proportion of the
fundamental.
THD-R: total harmonic content as proportion of the
effective voltage (current) value

This generates a clock signal synchronized to the
fundamental component of the measured waveform.
The waveform is sampled using this clock signal. If
the PLL does not function correctly, accurate
harmonic analysis is not possible.

When digital sampling is applied to signal waveforms,
if over half of the frequency composition of the
sampling frequency is included in the measurement
signals, repeated skew (area sync) occurs and so
correct frequency analysis cannot be done. This
problem can be prevented by inserting a low pass
filter that cuts the sampling frequency at the front
section of the A/D converter by half. This filter is
called an anti-aliasing filter.

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4.1 Harmonic Measurement

18

────────────────────────────────────────────────────

4.2 Harmonic Analysis Procedure

Check that the line to be measured is shut off, and

1.

check that the 3194 product is powered off and the
power cord disconnected from the outlet.

Connect the ground terminal to earth and connect the

2.

power cord to the 3P-outlet.

Turn the power on.

3.

Make a connections and check there is no short circuit

4.

(Warming-up 1 hour or more

When using the 9600 or 9602,
carry out degaussing after warming-up.)

See Section 4.1 in the 3194 manual.

Select the wiring mode on the STATUS "UNIT"

5.

screen.

Specify the channel for analysis on the harmonic

6.

screen.

Specify the output item on STATUS "freq/output"

9.

screen when the data is output on FD or printer.

Select voltage range and current range.

10.

Carry out zero adjustment.

11.

Check the connection of line being measured again,

12.

and turn on the power line.

See Section 3.2 in this manual.

See Section 3.2 in this manual.

See Section 3.3 in the 3194 manual.

Start the measurement.

13.

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4.2 Harmonic Analysis Procedure

19

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4.3 Graph Display of Harmonics

A harmonic graph can display the amplitude, proportion, or phase of each of
the voltage, current, and power as a graph. There are three formats.

Format 1

One only of the analyzed
voltage and current is
displayed as a graph.

Format 2

The display is divided into
three graphs. Voltage,
current, and power are
displayed for each channel.

Format 3

The display is divided into
three graphs. In this case,
the same item is displayed
for each of the three
systems.

NOTE

･ Distortion is not displayed.
･ When sorting is enabled, the vertical axis is by harmonic order instead of

degree.

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4.3 Graph Display of Harmonics

20

────────────────────────────────────────────────────

(1) Displaying procedure

In harmonic mode, press the

F1 "GRAPH"

, to switch to the graph screen.

(2) Selecting the display format (two methods)

Method 1

Press the

SHIFT

key, then press the

key to to cycle through the format.

Method 2

Press the

F5 "SELECT"

key.
Move the cursor to the display format box, and
use the

F1 "↑"

and

F2 "↓

" keys to make a
selection.
After specifying, press the

F5 "RETURN

F1 "GRAPH

"key.

"

Format 1

(independent of

wiring mode)

Format 2

All 1P2W

1P3W/

3P3W+1P2W

3V3A/3P4W

Format 3

All 1P2W

(3) Specifying the item to display (two methods)

Method 1

Press the
1, 2, and 3 are selected).

U1 screen

U1 I1

U1
U2

U1
U2
U3

U1

I1

P1

F1 "GRAPH"

I1 screen

P1 U2 I2 P2

I1
I2

I1
I2
I3

U2

P2

I2

P1
P2

P1
P2
P3

U3

I3

P3

key to cycle through the display items (when channels

P1 screen

ΣP

ΣP

U3 I3 P3

P3 screen

ΣP screen

U3 I3

P3

1P3W/

3P3W+1P2W

3V3A/3P4W

U1

I1

P1

U1

I1

P1

U2

I2

P2

U2

I2

P2

ΣP

U3

I3

P3

U3

I3

P3

ΣP

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4.3 Graph Display of Harmonics

21

────────────────────────────────────────────────────

Method 2

Press the

F5 "SELECT"

key.
Move the cursor to the display item box, and
use the

F1 "↑"

and

F2 "↓"

keys to make a
selection.
After specifying, press the

F5 "RETURN"

key.

(4) Selecting the display analysis information

Select the information from the analysis from Amplitude, Proportion, and
Phase.

NOTE

Press the

F5 "SELECT"

key.
Move the cursor to the analysis item box, and
use the

F1 "↑"

and

F2 "↓"

keys to make a
selection.
After specifying, press the

F5 "RETURN"

･ This specification affects the list display in all screens.
･ Selecting "

PHASE

" has the following significance:
For voltage (U) or current (I), display the phase angle of the fundamental
waveform with respect to the PLL source.
For power (P), display the voltage-current phase difference

key.

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4.3 Graph Display of Harmonics

22

────────────────────────────────────────────────────

(5) Selecting the vertical axis

Select a linear (LINEAR) or logarithmic display (LOG) for the vertical axis.

NOTE

Press the

F5 "SELECT"

key.
Move the cursor to the LINEAR/LOG box, and
use the

F1 "↑"

selection. After specifying, press the

and

F2 "↓"

keys to make a

F5 "RETURN"

key.

It is not possible to make individual LINEAR/LOG selections. The vector
display also changes accordingly.

(6) Data read-out with the cursor

On a displayed graph, you can use the cursor to
select the harmonics to be read. Use the
keys and to move the cursor ▼ on the
screen, and display the selected data.

CURSOR

────────────────────────────────────────────────────

4.3 Graph Display of Harmonics

23

────────────────────────────────────────────────────

4.4 List Display of Harmonics

The harmonic list display shows the amplitude value, proportion, phase
angle, and distortion for each harmonic of voltage, current, and power. There
are two display formats: format 1 and format 2.

Format 1 Format 2

Only the analysis data for the channel synchronized to the PLL source is
valid.
When sorting is enabled, display order is by descending amplitude.

(1) Display procedure

In harmonic mode, press theF2"

LIST

" key, to switch to the List screen.

(2) Selecting the display format (two methods)

Method 1

Press the
to cycles through the format.

Method 2

Press the
Move the cursor to the display item box, and
use the
selection. After specifying, press the
key.

SHIFT

F5 "SELECT"

F1 "↑"

key, then press theF2"

and

key.

F2 "↓"

keys to make a

F5 "RETURN"

LIST

"key

────────────────────────────────────────────────────

4.4 List Display of Harmonics

24

────────────────────────────────────────────────────

(3) Specifying the item to display (two methods)

U1 screen

I1 screen

P1 screen

Press theF2"

LIST

" key to cycle through the

measurement items (voltage, current, and power).

Method 1

P3 screenΣP screen

Method 2

Press the

F5 "SELECT

"key.

Move the cursor to the display item box, and use

F1 "↑"

the
After specifying, press the

and

F2 "↓"

keys to make a selection.

F5 "RETURN"

key.

NOTE

(4) Specifying the display order

Select whether to display all harmonics, or only
the even or odd harmonics.

When sorting is enabled, the order alternates between even and odd
harmonic orders.

────────────────────────────────────────────────────

4.4 List Display of Harmonics

25

────────────────────────────────────────────────────

(5) Specifying the analysis information

Specify information from the analysis to be displayed.

NOTE

Press the

F5 "SELECT

"key.

Move the cursor to the display item box, and use

F1 "↑"

the
After specifying, press the

and

F2 "↓"

keys to make a selection.

F5 "RETURN"

key.

･ This specification affects the list display in all screens.
･ Select the analysis information from the amplitude, proportion, and phase

angle.

･ Selecting "

PHASE

" has the following significance:
For voltage (U) or current (I), display the phase angle of the fundamental
waveform with respect to the PLL source.
For power (P), display the voltage-current phase difference

･ For the total value (ΣP) , the phase angle and total harmonic distortion are

not displayed.

────────────────────────────────────────────────────

4.4 List Display of Harmonics

26

────────────────────────────────────────────────────

4.5 Vector Display of Harmonics

The harmonic vector display shows the voltage, current, and phase angle for
each harmonic, making clear the phase relationship between voltage and
current. The numeric values of the displayed harmonics also appear.
For details on wiring mode and vector display, see Appendix.

NOTE

･ It is only possible to display the voltage and current for a single system on

the screen. Again, only one harmonic can be selected for display. Therefore,
for a single phase system two lines (voltage and current) appear, and for a
three-phase four-wire system, six lines (voltage ×3, current ×3) are
displayed.

･ By setting the hold state, and switching the screen, it is possible to read

other analysis data for the same time instant.

･ The distortion is not displayed.
･ The voltage/current phase angle indicates the phase angle taking the phase

angle of the fundamental from the PLL source as 0。.

･ The power phase difference indicates the phase difference of the current with

respect to the voltage on the same channel for each harmonic.

･ This reflects the harmonic selected on the harmonic graph display.
･ When sorting is enabled, the same degree may not be displayed.

────────────────────────────────────────────────────

4.5 Vector Display of Harmonics

27

────────────────────────────────────────────────────

(1) Display procedure

In harmonic mode, press the

F3 "VECTOR"

key, to switch to the Vector
display screen.
Pressing the

F3 "VECTOR"

key cycles through U/I, U, and I.

(2) Selecting the display item (U/I, U, I) (two methods)

Method 1

Press theF3"

VECTOR

" key to cycles through the

items (U/I, U, and I).

Method 2

Press the

F5 "SELECT"

key.
Move the cursor to the display format box,
and use theF1"↑"andF2"↓" keys to make a
selection. After specifying, press theF5"
key.

(3) Specifying the display order

RETURN

"

Pressing the

CURSOR

keys ( and ) cycles through the display order.

(4) Selecting the vertical axis:

Select a linear (LINER) or logarithmic display
(LOG) for the vertical axis. Switch the display in
the same way of the graph display.

────────────────────────────────────────────────────

4.5 Vector Display of Harmonics

28

────────────────────────────────────────────────────

4.6 Waveform Display

The waveform display shows one cycle of the voltage and current waveforms
being measured. There are five formats.

Format 1

Shown the waveforms
(voltage or current) for each
system being measured
together.

Format 2

Shown the waveforms
(voltage or current) for each
system being measured
together. The display is
smaller than the graph of
format 1, but the effective
and peak values are shown.

Format 3

The display is divided into
two, and the voltage
waveform (above) and
current waveform (below)
for the system being
measured are shown
together.

────────────────────────────────────────────────────

4.6 Waveform Display

29

────────────────────────────────────────────────────

ZOOM

Voltage and current
waveforms can be zoomed.
The zoom area can be
panned by the left and right
cursor keys, and the amount
of magnification set by the
up and down keys. Pressing
theF4key switches between
UandI.

10 to 70 Hz X 16 max.

70 tp 140 Hz X 8 max.

140 to 280 Hz X 4 max.

280 to 560 Hz X 2 max.

NOTE

560to4500Hz X 1 max. (can not be changed)

FFT

All voltage and current
waveform analysis data can
be graphed. The upper part
is voltage and the lower part
is current. Degree and
frequency can be read by the

CURSOR

and keys.

･ The cycle displayed in one screen is different depending on the PLL

synchronization range. See Chapter 9, "Specifications" for more information.

･ The waveform zero-crossing point is not correlated with frequencies.
･ The waveform starts from a point at which the voltage waveform (or current

waveform) specified as the PLL source waveform crosses the zero value, and
displays the first cycle from the window being analyzed. The other waveforms
are displayed for the same time interval as this waveform.

･ It is not possible to select individual items for display.
･ Because items not displayed are calculated internally at the same time, by

switching to the hold state and switching the screen, it is possible to
display simultaneous parts of other waveforms.

･ The power waveform is not displayed.
･ Only waveforms for channels synchronized to (at the same frequency as)

the PLL source channel are valid.

･ Cursors are not available for data readout.
･ Effective power is not displayed.
･ The vertical axis is fixed as LOG.
･ FFT format can not be selected when sorting is enabled.
･ The vertical axis is fixed as 100% when the FFT format is selected.

────────────────────────────────────────────────────

4.6 Waveform Display

30

)

)

)

────────────────────────────────────────────────────

(1) Selecting the display format

Move the cursor to harmonic mode, and press the
switch to the waveform display screen. Each time you press the

"WAVEFORM"

the waveform display switches to the next format. (when

channels 1, 2, and 3 are selected).

F4 "WAVEFORM"

F4

,to

(2) Selecting the display format (Expanded, compressed, two-screen,

zoom, or FFT) (two methods)

Method 1

Magnification

displays

Press the

SHIFT

"WAVEFORM

key, then press the

" key to cycle through the format.

F4

Method 2

Press the

F5 "SELECT"

key

.

Move the cursor to the display format box, and
use the

F1 "↑"

selection. After specifying, press the

and

F2 "↓"

key to make a

F5 "RETURN

key.

(3) Specifying the item to display (Voltage, Current) (two methods)

Method 1

Press the

U1

U1/U2

F4 "WAVEFORM"

I1

(All 1P2W)

I1/I2

key to cycle through the display items.

U2

U3

I2

I3

U3

U1/U2/U3

I3

I1/I2/I3

"

Compression

displays

(1P3W/3P3W＋1P2W)

(numeric)

U1

(numeric)

I1

(numeric)

U2

(numeric)

(3V3A/3P4W

I2

(numeric)

U3

(numeric)

I3

(All 1P2W)

(numeric)

I1/I2/I3

U1/U2/U3

I1/I2/I3

Dual displays

(numeric)

U1/U2

(numeric)

I1/I2

(1P3W/3P3W＋1P2W)

U1

I1

U2

I2

(All 1P2W)

U3

I3

(numeric)

U3

U1/U2

I1/I2

(numeric)

I3

(numeric)

U1/U2/U3

(3V3A/3P4W

U3

I3

(3V3A/3P4W

(1P3W/3P3W＋1P2W)

────────────────────────────────────────────────────

4.6 Waveform Display

31

────────────────────────────────────────────────────

Method 2

Press the
Move the cursor to the display item box, and use
the
selection. After specifying, press the

"RETURN

(4) Vertical axis scaling setting:

You can change the scaling ratio for the waveform
vertical axis.
Press the
Move the cursor to the scaling factor box, and use

1 "↑"

the
After specifying, press the

NOTE

F5 "SELECT"

F1 "↑"

"key.

F5 "SELECT

and

and

F2 "↓"

key.

F2 "↓

" keys to make a

"key.

keys to make a selection.

F5 "RETURN

F5

"key.

･ Select the scaling factor from ×1/3, ×1, ×2,

and ×5. In this case, for example, using a
scaling factor of ×5, the waveform is
magnified by 5 times.

･ There is no offset function for moving the

position of the axis.

(5) Deleting the displayed channels

In 1P3W mode or above, more than one waveform
is shown within the same graph. In this case you
can switch off a waveform which is not required.

Press the
Move the cursor to the waveform setting box, and
use the
selection. After specifying, press the
key.

F1 "↑"

F5 "SELECT

and

"key.

F2 "↓"

keys to make a

F5 "RETURN

"

────────────────────────────────────────────────────

4.6 Waveform Display

32

────────────────────────────────────────────────────

4.7 Measurement using an External Sync Signal

External signals can be synchronized with PLL for high frequency analysis
of voltage, current, and electric power. Also, measurement of the phase
amount change of voltage/current based on external signals is possible.

4.7.1 Theory of Operation

If the pulse count is a multiple of the fundamental waveform frequency,
calculation is based on the rising edge of the pulse nearest the rising edge
zero crossing of the U1 fundamental waveform component.
Pressing the
standard to zero.

Single pulse

MEAS

key forces the phase difference (θ0) between U1 and the

Fundamental waveform frequency (U1)

Phase difference

Standard

Multiple pulses

Fundamental waveform frequency (U1)

Calculation

External synchronization signals

Standard

Calculation

External synchronization signals

Standard

────────────────────────────────────────────────────

4.7 Measurement using an External Sync Signal

Standard

33

────────────────────────────────────────────────────

NOTE

･ The input connector for external synchronization signals is not insulated

from the main product of the 3194.

･ See the "EXT.CLOCK" item in Chapter 7, "External Control" for

information on the pin assignment of the connector.

･ Use Ext (ch6) when there is a need to insulate external synchronization

signals from the 3194 main product. Because this requires use of a dedicated
product, consult your local dealer for more information on how to obtain this
product.

･ As a condition, external synchronization signals require sine wave in the

range of 1 to 10 Vrms. However, as other distorted waveforms are also
possible, the PLL circuitry many not operate correctly, and measurement
cannot be made as well.

･ The phase difference between external synchronization signals and

voltage/current includes the internal phase difference of θ. Because of this
reason, the accuracy of the phase is determined as the variation amount.
Also, accuracy is determined by the sine wave and frequency ratio (1/1).

･ When the frequency of external synchronization signals changes, or the

signals stop and then the PLL circuitry stops, the phase compensation value
using the MEAS key becomes invalid.

･ The frequency of external synchronization signals must be integer multiples

(from 1 to 255 times) of the frequency of the voltage/current to measure.

────────────────────────────────────────────────────

4.7 Measurement using an External Sync Signal

34

────────────────────────────────────────────────────

4.7.2 Setting Procedure

The external synchronizing signal must be applied to the EXT CONTROL
terminal before connecting input voltage and current for measurement.

1. Set the PLL source to the voltage measured
with the STATUS screen, and measure the
frequency of the voltage from the "Harmonic"
screen on the MEAS screen.

2. Set the PLL source to [Ext(Con)] from the
"STATUS" screen, to measure the frequency of
the external sync signal on the "MEAS" screen.

3. Divide the external sync signal frequency by the
frequency of the displayed voltage, and enter
the resulting value as the [Ext Divide]. For
example, if the frequency of the displayed
voltage is 50 Hz and the frequency of the
external sync signal is 300 Hz, enter 1/6 as the

Before Modification

[Ext Divide].

After Modification

4. From this state, return to the "MEAS" screen
and press the

MEAS

key again to phase lock
with the synchronizing signal by zeroing out
any UI phase difference, and to normalize the
display.

────────────────────────────────────────────────────

4.7 Measurement using an External Sync Signal

35

────────────────────────────────────────────────────

Chapter 5

Hold Function

NOTE

Press the panel
this case, by switching the screen selection, you can view harmonic data for
the same time interval which was not displayed.

Since internally the measurement continues, each time you press the
key the values at that time are displayed. To end the hold function, hold
down the

The following measurements are also possible.
When combined with the interval timer, the results of analysis at the end of
each interval can be displayed.

･ The hold function applies to the whole 3194 product.

Refer to the following sections in the instruction manual of the 3194.
Section 6.1, "Hold Function", and 7.2, "Setting the Control Time."

･ Averaging is not supported.
･ Peak Hold function is not supported.
･ If using the sort function, output is in maximum sort order but the hamonic

order are not output.

SHIFT

key to freeze the display of all items on the screen. In

HOLD

key and press the

HOLD

key.

HOLD

────────────────────────────────────────────────────

36

────────────────────────────────────────────────────

────────────────────────────────────────────────────

37

────────────────────────────────────────────────────

Chapter 6

Output to Floppy Disk/Printer

This product can be used with internal thermal printer as option. The
measured data and setting data can be easily printed out.

NOTE

･ If output items other than the data measured by the 9605-01 input unit are

also specified, they are output at the same time.

･ For the basic method of using the floppy disk/printer, and various notes on

this, refer to the Instruction Manual for the 3194 product, Chapter 11 "Using
the Floppy Disk and Chapter 13 "Using the Printer."

･ The total number of output items of the data analyzed by the 9605-01 and

other output setting data is displayed. "+3" shows three items (date, time,
and interval time) and it is always affixed.

･ Waveform data cannot be output to a printer or floppy disk.
･ If using the sort function, output is in maximum sort order but the harmonic

order are not output.

────────────────────────────────────────────────────

38

────────────────────────────────────────────────────

6.1 Selecting the Output Item to FDD/Printer

6.1.1 Output Setting in Harmonic Analysis Mode

1. Press the

"HARM SELECT"

F2

screen for output item selection.

2. Move the cursor to

3. Select the

F1

"ALL"

"OUTPUT ORDER"

"ODD"

,

F2

key.

4. Move the cursor to

ORDER"

5. Use the

key.

F1

"↑"

"MIN ORDER"or"MAX

F2

"↓"

and

selection.

key, to display the

key.

,or

"EVEN"

F3

keys to make a

6. Using the

CURSOR

keys, move the cursor to the

item to be output.

7. Press the
delete the item which has been set, press the

"OFF"

8. Pressing the

F2

key.

"ON"

key to make a setting. To

F3

"LINE"

key sets the items on

F1

the specified line to on or off.

NOTE

9. When the settings are completed, press the

"RETURN"

key. 　

･ For example, when the output item is set to ODD, and "MIN ORDER" is set

F5

to 1, and "MAX ORDER" is set to 10, this selects the data items for odd
harmonics in the range 1 to 10.
Even if the waveform output is set to ON, the data is not output on a
printer.

･ When sorting is enabled, the data is output in the displayed order.

────────────────────────────────────────────────────

6.1 Selecting the Output Item to FDD/Printer

39

────────────────────────────────────────────────────

6.2 Timer Control of Output

6.2.1 Harmonic Analysis

You can set control times to output automatically at those times.

1. Set the control time.

2. Select the output items.

NOTE

3. Press the

･ For the basic method of using the timer control, refer to the Instruction

START/STOP

Manual for the 3194 product. Section 7.2, "Setting the Control Time"

･ The minimum interval which can be specified is varied automatically,

depending on the number of output items.

6.2.2 Relationship Between the Number of Output Items and

key to start operation.

Interval Time

The maximum number of items to be output and corresponding minimum
interval times for output to floppy diskette or printer are determined
automatically as follows.

Number of setting items Minimum interval time

FDD only 1 to 70,

71 to 400
400 or more

Printer only 1 to 60 lines

every 60 lines

FDD+Printer 1to60

every 60

NOTE

･ For integration data, one data value is regarded as two values.
･ Waveform data cannot be output to a printer or floppy disk.

Specifications of the floppy disk data for the 9605-01(Harmonic Analysis)

Harmonic data is output appended to the end of a line of ordinary
measurement data. The output sequence is as shown in the table on the
following page. The data for each of the harmonics in the list is output
consecutively. If the time averaging or peak hold functions are active, the
corresponding values (the same as on the screen) are output.

10 s
20 s
(20 s + 10 s)/370 items

10 s
+10 s

Total value of FDD only
and printer only

NOTE

･ The suffixes (n) are output as two digit values (xx), with a leading space

in the case of a single-digit value.
Example "U1( 3),I2(23)"
The channel numbers, such as 1, 2, and 3 in "U1," "U2," and "U3"
change, for example to "U4," "U5," and "U6," depending on the analysis
channel settings.

･ The suffixes (n) output by the sort function indicate the sequence. The

harmonic order is not output.

────────────────────────────────────────────────────

6.2 Timer Control of Output

40

────────────────────────────────────────────────────

Fundamental
frequency

Amplitude value

Peak value

THD-R

THD-F

Harmonic level

Harmonic
contents

Harmonic phase
angle

Headers Meaning

HFREQ Fundamental frequency of PLL source

HU1
HU2
HU3

HI1
HI2
HI3

HP1
HP2
HP3
HP123

U1+PEAK
U2+PEAK
U3+PEAK

I1+PEAK
I2+PEAK
I3+PEAK

U1-PEAK
U2-PEAK
U3-PEAK

I1-PEAK
I2-PEAK
I3-PEAK

THDR U1
THDR U2
THDR U3

THDR I1
THDR I2
THDR I3

THDF U1
THDF U2
THDF U3

THDF I1
THDF I2
THDF I3

U1 (n)
U2 (n)
U3 (n)

I1 (n)
I2 (n)
I3 (n)

P1 (n)
P2 (n)
P3 (n)
P123 (n)

U1%Fnd(n)
U2%Fnd(n)
U3%Fnd(n)

I1%Fnd(n)
I2%Fnd(n)
I3%Fnd(n)

P1%Fnd(n)
P2%Fnd(n)
P3%Fnd(n)
P123%Fnd(n)

U1deg(n)
U2deg(n)
U3deg(n)

Voltage (U1) rms value
Voltage (U2) rms value
Voltage (U3) rms value

Current (I1) rms value
Current (I2) rms value
Current (I3) rms value

Active power (P1)
Active power (P2)
Active power (P3)
Active power (ΣP)

Voltage (U1) positive peak value
Voltage (U2) positive peak value
Voltage (U3) positive peak value

Current (I1) positive peak value
Current (I2) positive peak value
Current (I3) positive peak value

Voltage (U1) negative peak value
Voltage (U2) negative peak value
Voltage (U3) negative peak value

Current (U1) negative peak value
Current (U2) negative peak value
Current (U3) negative peak value

Voltage (U1) total harmonic distortion ratio (THD-R)
Voltage (U2) total harmonic distortion ratio (THD-R)
Voltage (U3) total harmonic distortion ratio (THD-R)

Current (I1) total harmonic distortion ratio (THD-R)
Current (I2) total harmonic distortion ratio (THD-R)
Current (I3) total harmonic distortion ratio (THD-R)

Voltage (U1) total harmonic distortion ratio (THD-F)
Voltage (U2) total harmonic distortion ratio (THD-F)
Voltage (U3) total harmonic distortion ratio (THD-F)

Current (I1) total harmonic distortion ratio (THD-F)
Current (I2) total harmonic distortion ratio (THD-F)
Current (I3) total harmonic distortion ratio (THD-F)

The n-th harmonic voltage (U1) rms value
The n-th harmonic voltage (U2) rms value
The n-th harmonic voltage (U3) rms value

The n-th harmonic current (I1) rms value
The n-th harmonic current (I2) rms value
The n-th harmonic current (I3) rms value

The n-th harmonic power value (P1)
The n-th harmonic power value (P2)
The n-th harmonic power value (P3)
The n-th harmonic power value (ΣP)

The n-th harmonic voltage (U1) contents
The n-th harmonic voltage (U2) contents
The n-th harmonic voltage (U3) contents

The n-th harmonic current (I1) contents
The n-th harmonic current (I2) contents
The n-th harmonic current (I3) contents

The n-th harmonic power value (P1) contents
The n-th harmonic power value (P2) contents
The n-th harmonic power value (P3) contents
The n-th harmonic power value (ΣP) contents

The n-th harmonic voltage (U1) contents
The n-th harmonic voltage (U2) contents
The n-th harmonic voltage (U3) contents

Units

Hz

V

A

W

V

A

V

A

%

%

%

%

V

A

W

%

%

%

°

────────────────────────────────────────────────────

6.2 Timer Control of Output

41

────────────────────────────────────────────────────

Headers Meaning

I1deg(n)
I2deg(n)
I3deg(n)

P1deg(n)
P2deg(n)
P3deg(n)
P123deg(n)

The n-th harmonic current (I1) contents
The n-th harmonic current (I2) contents
The n-th harmonic current (I3) contents

The n-th harmonic power value (P1) contents
The n-th harmonic power value (P2) contents
The n-th harmonic power value (P3) contents
The n-th harmonic power value (ΣP) contents

Units

°

°

────────────────────────────────────────────────────

6.2 Timer Control of Output

42

────────────────────────────────────────────────────

────────────────────────────────────────────────────

6.2 Timer Control of Output

43

R

────────────────────────────────────────────────────

Chapter 7

External Control

The measurement input terminal and chassis of the 3194 are not

DANGE

isolated from each other. Do not exceed the maximum rated working
voltage. Doing so can damage the product or cause a serious accident.

With a connection to the external output connector on the rear panel of the
3194 product, various external control functions are available. The following
controls apply to the 9605-01.

NOTE

･ Be sure to observe the items under the

headings in Chapter 9, "External Output/External Control Terminals" in the
Instruction Manual supplied with the 3194 product.

･ The FDD/PRINTER.START and EXT.HOLD controls are common to overall

3194 operation.

7.1 EXT.CLOCK

The PLL sync signal is set to a multiple of the external clock for analyzing
voltage, current and power.

Pin number Terminal

24 FDD/PRINTER. START

25 EXT.HOLD

48 EXT.CLOCK

49 TRIGGER.IN

50 TRIGGER.OUT

WARNING,CAUTION

,and

NOTE

NOTE

･ Set the PLL source to [Ext(Con)].
･ Set the [Ext Divide] to match the fundamental voltage frequency to the clock

frequency.

･ Synchronization is not possible with distorted waveforms.
･ Refer to Section 4.6, "Measurement using an External Sync Signal."

────────────────────────────────────────────────────

7.1 EXT.CLOCK

44

────────────────────────────────────────────────────

7.2 TRIGGER.IN

When an external control signal is input, a single measurement is made and
displayed. This operation is repeated each time the control signal is input.
This is controlled by triggering at the edge of the input waveform, or
shorting between 48-pin and 47-pin.

NOTE

To use this control, the external trigger setting must be set to "

7.3 TRIGGER.OUT

This outputs a clock signal with the same frequency as the signal waveform
selected as the PLL source. For example, when a 50 Hz sine wave is input,
this outputs a 50 Hz clock signal.

NOTE

･ If the PLL circuit is not functioning correctly, normally no wave-shaped

clock signal is output.

･ The duty factor of the clock signal is not specified.
･ The point at which the signal waveform crosses the zero value is not

synchronized to the rising edge of the clock signal.

1μs≦

+5 V

0V

TRIGGER IN

(48-pin)

DGND

(47-pin)

ON."

────────────────────────────────────────────────────

7.2 TRIGGER.IN

45

────────────────────────────────────────────────────

Chapter 8

GP-IB/RS-232C Interface

8.1 Overview

WARNING

CAUTION

In order to avoid the possibility of an electric shock, unplug the power
meter's power cord and disconnect the other wiring before
connecting the GP-IB or RS-232 cable to the interface connector.

・ Turn the power off when connecting the personal computer to the

power meter. Connecting or disconnecting cables while the power is on
could damage the equipment.

・ After connecting the GP-IB or RS-232C cable, always be sure to

secure the connection with the screws on the connector.

The 3194 MOTOR/HARMONIC HiTESTER is fitted as standard with a GP­IB/RS-232C interface. Using this interface, all of the functions of the
product can be controlled from a personal computer by remote control, for
the acquisition of harmonic measurement data.
This section lists the extra commands added for harmonic measurement.

This section explains only commands added for the 9605-01.
For details on operation of the GP-IB or RS-232C interface, first refer to
Chapter 12, "GP-IB/RS-232C Interface" in the instruction manual of the

3194.

NOTE

────────────────────────────────────────────────────

It is not possible to use simultaneously both GP-IB and RS-232C interfaces.

8.1 Overview

46

────────────────────────────────────────────────────

8.2 Event Registers

This section explains only event registers added for the 9605-01.
For the event status registers ESR2, ESR21 to ESR26, refer to Section

12.3.13, "Event Registers" (7) and (8) in the instruction manual of the 3194.

Event status register 0 (ESR0)

This register is used principally to monitor start and stop processing events.

The bit0 is added for the 9605-01.
For details, refer to ":HARMonic:RTC" command.

The following commands are used for reading the event status register 0, and
for setting the event status enable register 0 and for reading it.

Reading event status register 0 ∗ESR0?
Setting event status enable register 0 ∗ESE0
Reading event status enable register 0 ∗ESE0?

Event status register 0 (ESR0)

Bit 7

SE

Bit 6

ST

Bit 5

PE

Bit 4

FE

Bit 3

ST

Bit 2

IE

Bit 1

CE

Sampling End

Sampling ended after the end of the sampling count set by
the ":RTC:COUNT" command.

Start Time

Start time is reached.

Printer Error

A printer paper end, head up, or temperature out-of-range
status was issued.

Floppy Error

A floppy disk write error, read error, or disk full status
occurred.

Stop Time

Timer and real time processing finished.

Interval End

Interval finished.

Clamp Error

The clamp was disconnected or connected, or an operation
failure occurred.

Bit 0

UE

────────────────────────────────────────────────────

8.2 Event Registers

Harmonic sampling processing end

Sampling ended after the end of the sampling count set by the
":HARMonic:RTC" command.

47

────────────────────────────────────────────────────

8.3 Command Reference

8.3.1 Command Reference Explanation

This section explains each command in the harmonic analysis mode.

The 9605-01 is only capable of simultaneous analysis on three channels.
Therefore, when channel are specified in a command, regardless of the
channels on which the 9605-01 is operating, these are specified as channels
1, 2, and 3.
For example, if channels 3, 4, and 5 of the 3194 product are used for
analysis by the 9605-01, then the specifications to get measurement values
are "HU1", "HTFI3", and so forth.

:Command

Indicates functions of message reference

Syntax

Response

syntax

Example

: Indicates the command syntax.

<>

: (Data portion)

Indicates the data format for a
command that includes data.
<NR1>= integer data

: Indicated only for commands for

which a response message is returned.

: Shows a simple example illustrating

the usage of the command. All
transmissions are indicated in "short
form."

Function

Note

Error

: Describes the function of the

command.

: Describes points that require special

attention when using the command.

: Indicates the what kinds of errors

might occur.

NOTE

"( )", "< >" marks should not be input.

────────────────────────────────────────────────────

8.3 Command Reference

48

────────────────────────────────────────────────────

.3.2 Specific Commands for Harmonic Analysis Function

8

:DATAout:ITEM:HARMonic:ALLClear

Clears all output items for harmonic default.

Syntax

Example ":DATAout:ITEM:HARMonic:ALLClear"

:DATAout:ITEM:HARMonic:ALLClear

:DATAout:ITEM:HARMonic:ORDer

Sets the output item for the harmonic order.

Syntax

:DATAout:ITEM:HARMonic:ORDer

<NR1>,<NR1>,<ODD/EVEN/ALL>

first <NR1> = 0 to 50 (lower limit
order)

second <NR1> = 0 to 50 (upper limit
order)

Example ":DATAout:ITEM:HARMonic:ORDer

1,15,ODD"

Sets the output harmonic order to 1st
to 15th odd-order.

:DATAout:ITEM:HARMonic:ORDer?

Queries the output order of the harmonic data.

Function

Function

Clears all output items set by the
":DATAout:ITEM:HARMonic"
command.

Sets the output item for the harmonic
order (level, percentage, and phase
angle) to FDD or printer.

Syntax

Response

syntax

Example

Transmission

Response

:DATAout:ITEM:HARMonic:ORDer?

":DATAOUT:ITEM:HARMONIC:ORDER

<0-50>,<0-50>,<ODD/EVEN/ALL>"

":DATAout:ITEM:HARMonic:ORDer?"
":DATAOUT:ITEM:HARMONIC:ORDER

1,15,ODD"

Function

Queries the output item for the
harmonic order (level, percentage, and
phase angle) to FDD or printer.

────────────────────────────────────────────────────

8.3 Command Reference

49

────────────────────────────────────────────────────

:DATAout:ITEM:HARMonic:LIST

Setting the output item for the harmonic list.

Syntax

:DATAout:ITEM:HARMonic:LIST

<NR1>,...(up to 6 items)

<NR1>= 0 to 63

Example ":DATAout:ITEM:HARMonic:LIST

1,1,1,1,1,1"

As the default output items to the
floppy disk drive or printer for the
normal measurement, the level,
percentage, and phase angle for U1
and P1 are specified.

128 64 32 16 8 4 2 1

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

Level

Percentage

Phase

angle

data1 - - HI3 HI2
data2 - - - ­data3 - - HI3 HI2
data4 - - - ­data5 - - HI3 HI2
data6 - - - -

:DATAout:ITEM:HARMonic:LIST?

Function

Note

HPSUM

HPSUM

Sets the output item for the harmonic
list (level, percentage, phase angle) to
FDD or printer.

The item is set as shown below by
setting bits, to specify a single
numerical value.

For the harmonics to be output, it is
necessary beforehand to issue a
":DATAout:ITEM:HARMonic:ORDer"
command.

If the setting value is out of range, an

execution error occurs.

HU3 HU2 HU1

HI1

HP3 HP2 HP1
HU3 HU2 HU1

HI1

HP3 HP2 HP1
HU3 HU2 HU1

HI1

HP3 HP2 HP1

-

Queries the output item for the harmonic list.

Syntax

Response

syntax

Example

Transmission

Response

:DATAout:ITEM:HARMonic:LIST?

":DATAOUT:ITEM:HARMONIC:LIST

<0 - 63>,...(up to 6 items)"

":DATAout:ITEM:HARMonic:LIST?"
":DATAOUT:ITEM:HARMONIC:LIST

1,1,1,1,1,1"

Function

Queries the item set by the
":DATAout:ITEM:HARMonic:LIST"
command.

────────────────────────────────────────────────────

8.3 Command Reference

50

────────────────────────────────────────────────────

:DATAout:ITEM:HARMonic:NORMal

Sets the output item for the harmonic measurement value.

Syntax

:DATAout:ITEM:HARMonic:NORMal

<NR1>,..(up to 5 items)

<NR1>= 0 to 63

Example ":DATAout:ITEM:HARMonic:NORMal

9,1,9,9,0"

As the default output items to the
floppy disk drive or printer for the
normal measurement,

U1,I1,P1,THDRU1,THDRI1,THDFU1,
THDFI1 are specified.

128 64 32 16 8 4 2 1

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

RMS value data1 - - HI3 HI2 HI1 HU3 HU2 HU1

Power data2 - - - ­THD-R data3 - - HTRI3 HTRI2 HTRI1 HTRU3 HTRU2 HTRU1
THD-F data4 - - HTFI3 HTFI2 HTFI1 HTFU3 HTFU2 HTFU1

Frequency data5 - - - - - - - HF

:DATAout:ITEM:HARMonic:NORMal?

Function

Note

Sets the output item for the harmonic
measurement value (rms value, active
power, and total harmonic distortion
ratio) to FDD or printer.

If the setting value is out of range, an
execution error occurs.

The item is set as shown below by
setting bits, to specify a single
numerical value.

HPSUM

HP3 HP2 HP1

Queries the output item for the harmonic measurement value.

Syntax

Response

syntax

Example

Transmission

Response

:DATAout:ITEM:HARMonic:NORMal?

":DATAOUT:ITEM:HARMONIC:NORMAL

<0 - 63>,..(up to 5 items)"

":DATAout:ITEM:HARMonic:NORMal?"
":DATAOUT:ITEM:HARMONIC:NORMAL

9,1,9,9,0"

Function

Queries the item set by the
":DATAout:ITEM:HARMonic:NORMal"
command.

────────────────────────────────────────────────────

8.3 Command Reference

51

────────────────────────────────────────────────────

:DATAout:ITEM:HARMonic:WAVE

Sets the output item for the harmonic peak data.

Syntax

:DATAout:ITEM:HARMonic:WAVE
<NR1>,..(up to 2 items)

<NR1> = 0 to 63

Example ":DATAout:ITEM:HARMonic:WAVE

1,1"

As the default output items to the
floppy disk drive or printer for the

normal measurement, the waveforms of

+Upeak and -Upeak are specified.

128 64 32 16 8 4 2 1

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

+Peak data1

-Peak data2

- - HPIP3 HPIP2 HPIP1 HPUP3 HPUP2 HPUP1

- - HMIP3 HMIP2 HMIP1 HMUP3 HMUP2 HMUP1

:DATAout:ITEM:HARMonic:WAVE?

Queries the output item for the harmonic peak data.

Syntax

Response

syntax

:DATAout:ITEM:HARMonic:WAVE?

":DATAOUT:ITEM:HARMONIC:WAVE <0-

63>,<0-63>,<0-63>"

Function

Note

Function

Sets the output item for the harmonic
waveform data to FDD or printer.

Sets the waveform data.

If the setting value is out of range, an

execution error occurs.

The item is set as shown below by
setting bits, to specify a single
numerical value.

Queries the item set by the
":DATAout:ITEM:HARMonic:WAVE"
command.

Example

Transmission

Response

":DATAout:ITEM:HARMonic:WAVE?"
":DATAOUT:ITEM:HARMONIC:WAVE

1,1,1"

:DISPlay:HARMonic:GRAPh

Sets the items to be displayed on the harmonic graph screen.

Syntax

Example ":DISPlay:HARMonic:GRAPh 2"

:DISPlay:HARMonic:GRAPh <NR1>

<NR1> = 1, 2, 3
1: 1 item display
2: each items (3 graphs)
3: each mode (3 graphs)
(non): changing the screen

Displays 3 graphs for each items.

Function

Note

Sets the items to be displayed on the
harmonic graph screen.

Depending on wiring mode and unit, the
number of the graph to be displayed
varies.

────────────────────────────────────────────────────

8.3 Command Reference

52

────────────────────────────────────────────────────

:DISPlay:HARMonic:GRAPh?

Queries the display item on the harmonic graph screen.

Syntax

Response

syntax

Example

Transmission

Response

:DISPlay:HARMonic:GRAPh?

":DISPLAY:HARMONIC:GRAPH <1/2/3>"

":DISPlay:HARMonic:GRAPh?"
":DISPLAY:HARMONIC:GRAPH 2"

:DISPlay:HARMonic:LIST

Sets the display item on the harmonic list screen.

Syntax

Example ":DISPlay:HARMonic:LIST 1"

:DISPlay:HARMonic:LIST <NR1>

<NR1> =1, 2
1: 1 item display

2: 2 items display
(non): changing the screen

Displays the list for one item.

:DISPlay:HARMonic:LIST?

Function

Function

Queries the display item on the
harmonic graph screen.

Sets the display item on the harmonic
list screen.

Queries the display item on the harmonic list screen.

Syntax

Response

syntax

Example

Transmission

Response

:DISPlay:HARMonic:LIST?

":DISPLAY:HARMONIC:LIST <1/2>"

":DISPlay:HARMonic:LIST?"
":DISPLAY:HARMONIC:LIST 2"

:DISPlay:HARMonic:VECTor

Displays the harmonic vector screen.

Syntax

Example ":DISPlay:HARMonic:VECTor"

:DISPlay:HARMonic:VECTor

Function

Function

Queries the display item on the
harmonic list screen.

Displays the harmonic vector screen.

────────────────────────────────────────────────────

8.3 Command Reference

53

────────────────────────────────────────────────────

:DISPlay:HARMonic:WAVE

Sets the display item on the harmonic waveform screen.

Syntax

Example ":DISPlay:HARMonic:WAVE 1"

:DISPlay:HARMonic:WAVE <NR1>

<NR1> = 1, 2, 3, 4, 5
1: 1 cycle waveform

2: 1 cycle waveform and peak value
3: 2 waveforms
4:
5: FFT display

If no data is specified, the previous

screen is displayed.

Displays 1 cycle waveform.

Function

Note

:DISPlay:HARMonic:WAVE?

Queries the display item on the harmonic waveform screen.

Syntax

Response

syntax

Example

Transmission

Response

:DISPlay:HARMonic:WAVE?

":DISPLAY:HARMONIC:WAVE <1/2/3>"

":DISPlay:HARMonic:WAVE?"
":DISPLAY:HARMONIC:WAVE 1"

Function

Sets the display item on the harmonic
waveform screen.

The number of graphs displayed may
vary, depending on the number of input
units and the wiring mode.

Queries the display item on the
harmonic waveform screen.

:DISPlay?

Queries the screen displays.

Syntax

Response

syntax

Example

Transmission

Response

:DISPlay?

":DISPLAY <character>"

<character>

H_GRAPH

H_LIST

H_VECTOR

H_WAVE

":DISPlay?"
":DISPLAY H_GRAPH"

:HARMonic:CHANnel

Sets the harmonic analysis channel.

Syntax

Example ":HARMonic:CHANnel 1"

:HARMonic:CHANnel <NR1>

<NR1>= 1 to 5

Harmonic analysis for channel 1, 2,
and 3 is carried out.

Function

Note

Function

Note

Queries the current screen displayed.

The harmonic screen is added to the
existing ":DISPLAY" command. There
is no change in the response messages
for the screen.

Specifies the first channel for which
harmonic analysis is to be carried out.

Some channel numbers cannot be
specified as the first channel, depending
on the input unit configuration and
wiring mode of the 3194. In this case,
an execution error occurs.

────────────────────────────────────────────────────

8.3 Command Reference

54

────────────────────────────────────────────────────

:HARMonic:CHANnel?

Queries the harmonic analysis channel.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:CHANnel?

":HARMonic:CHANNEL <1-5>"

":HARMonic:CHANnel?"
":HARMONIC:CHANNEL 4"

Harmonic analysis for channel 4, 5,
and 6 is carried out.

:HARMonic:DELTa

SelectsOn/Offofwiringconversion.

Syntax

Example ":HARMonic:DELTa ON"

:HARMonic:DELTa <ON/OFF>

:HARMonic:DELTa?

Queries the wiring conversion.

Function

Function

Queries the current setting of the first
channel number for harmonic analysis.

Apply Δ-Y conversion when the wiring
mode is 3V3A, and apply Y-Δ
conversion when the wiring mode is
3P4W.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:DELTa?

:HARMONIC:DELTA <ON/OFF>

":HARMonic:DELTa?"
":HARMONIC:DELTA ON"

Function

:HARMonic:DIVider

Sets the frequency dividing ratio of the external sync signal.

Syntax

Example ":HARMonic:DIVider 10"

:HARMonic:DIVider <NR1>

<NR1>= 1 to 255

Sets the frequency dividing ratio to
ten.

Function

Obtains the on/off state of the Δ-Y
conversion function.

The frequency dividing ratio is set when
an external sync signal is selected.

────────────────────────────────────────────────────

8.3 Command Reference

55

────────────────────────────────────────────────────

:HARMonic:DIVider?

Queries the external sync signal frequency dividing ratio.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:DIVider?

:HARMONIC:DIVIDER <1-255>

":HARMonic:DIVider?"
":HARMONIC:DIVIDER 10"

:HARMonic:LPF

Averaging setting

Syntax

Example "HARMonic:LPF 1"

:HARMonic:LPF <NR1>

<NR1>= 0,1,2
0: None (no averaging)
1: Amplitude (Harmonicrms value)
2: Phase angle (Harmonic phase angle)

Amplitude is selected to be averaged.

:HARMonic:LPF?

Function

Function

Obtains the frequency dividing ratio of
the external sync signal.

According to the harmonic waveform
analysis results, selects an object to be
averaged.

Queries the average setting.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:LPF?

:HARMONIC:LPF <0/1/2>

":HARMonic:LPF?"
":HARMONIC:LPF 1"

Amplitude has been selected as the
object to be averaged.

:HARMonic:PHASezero

Phase angle zero adjust of external sync signal

Syntax

Example ":HARMonic:PHASezero"

:HARMonic:PHASezero

Function

Function

Note

Obtains the object selected to be
averaged.

When measuring with an external sync
signal, the phase angle of U1 is
normalized to zero degrees. Other
measurement values are adjusted relative
to the amount of U1 normalization.

Power phase difference is not adjusted.

────────────────────────────────────────────────────

8.3 Command Reference

56

────────────────────────────────────────────────────

:HARMonic:PLL

Sets the PLL source of the harmonic analysis.

Syntax

Example ":HARMonic:PLL HU1"

:HARMonic:PLL <character>

<character> = HU1, HU2, HU3, HI1,

HI2, HI3, CLK, EXT6, EXTC
EXT: external clock (see Section 3.3)

Sets the PLL source to HU1.

:HARMonic:PLL?

Queries the PLL source of the harmonic analysis.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:PLL?

":HARMONIC:PLL? <HU1, HU2, HU3,

HI1, HI2, HI3>"

":HARMonic:PLL?"
":HARMONIC:PLL HU1"

Function

Note

Function

Selects the PLL source of the harmonic
analysis. This selects the PLL source for
harmonic analysis. Analysis is based on
the PLL source selected by this
command.

Some channel numbers cannot be
specified as the first channel, depending
on the input unit configuration and
wiring mode of the 3194. In this case,
an execution error occurs.

Queries the current selecting channel as
PLL source.

:HARMonic:RTC

Sets the harmonic RTC counter.

Syntax

:HARMonic:RTC <NR1>

<NR1> = 0 to 10000

Example ":HARMonic:RTC 50"

Sets the harmonic RTC counter to 50.

:HARMonic:RTC?

Queries the harmonic RTC counter.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:RTC?

":HARMONIC:RTC <0-10000>"

":HARMonic:RTC?"
":HARMONIC:RTC 50"

Function

Note

Function

Theharmonicdisplayupdatetimingis
counted the specified number of times,
and is indicated in UE bit (bit 0) of
ESR0. When set to 0, this is off.

If the setting value is other than 0 to
10000, an execution error occurs.

Queries the counter value set by the
harmonic RTC counter.

────────────────────────────────────────────────────

8.3 Command Reference

57

────────────────────────────────────────────────────

:HARMonic:SORT

Selects the sort basis for harmonic analysis.

Syntax

:HARMonic:SORT <OFF,ALL,U,I,

HU1,HI1,HU2,HI2,HU3,HI3>

Example ":HARMonic:SORT HU1"

HU1 data is sorted and other
parameters are output for the
respective degree.

:HARMonic:SORT?

Query the sorting basis for harmonic analysis.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:SORT?

:HARMonic:SORT <data>

":HARMonic:SORT?"
":HARMonic:SORT HU1"

:HARMonic:TRIGger

Function

Function

Select the basis for sorting harmonic
wave analysis results.

Obtains the sorting basis for the
specified harmonic analysis data.

Enables or disables the trigger mode.

Syntax

Example ":HARMonic:TRIGger ON"

:HARMonic:TRIGger <ON/OFF>

:HARMonic:TRIGger?

Queries the trigger mode.

Syntax

Response

syntax

Example

Transmission

Response

:HARMonic:TRIGger?

:HARMONIC:TRIGGER <ON/OFF>

":HARMonic:TRIGger?"
":HARMONIC:TRIGGER ON"

Function

Function

Selects whether or not to switch to the
trigger pending state. When this is ON,
the trigger pending state is entered.
When OFF, the trigger pending state is
left, and the system switches to normal
harmonic analysis.

For details, refer to Chapter 7,
"TRIGGER IN."

Queries whether the current state is the
trigger pending state. When this is ON,
it indicates the trigger pending state.
When it is OFF, it indicates not the
trigger pending state.

────────────────────────────────────────────────────

8.3 Command Reference

58

────────────────────────────────────────────────────

:MEASure:HARMonic?

Queries the harmonic analysis data.

Syntax

Default mode:

:MEASure:HARMonic?

Data specification mode:

:MEASure:HARMonic?

<character>,..

Response

syntax

Example

Transmission

Response

Data portion Numerical data in NR3 format
±□□□□□□E±□□

Mantissa : 6 digits with a decimal point
Exponent : 2 digits

Error

Headers: ON

<character> <NR3>;<character>
<NR3>;<character> <NR3>,...

Headers: OFF

<NR3>;<NR3>;<NR3>,...

":MEASure:HARMonic?

HU1,HPUP1,HTFU1"

"HU1 +110.44E+00;HPUP1

+151.72E+00;HTFU1 +050.33E+00"

Display blank +6666.6E+99
Calculation impossible +7777.7E+99
Input over +9999.9E+99

Character
HU1, HU2, HU3 Voltage rms value
HI1, HI2, HI3 Current rms value
HP1, HP2, HP3, HPSUM Active power
HPUP1, HPUP2, HPUP3 Voltage (+) peak value
HMUP1, HMUP2, HMUP3 Voltage (-) peak value
HPIP1, HPIP2, HPIP3 Current (+) peak value

HMIP1, HMIP2, HMIP3
HTRU1, HTRU2, HTRU3
HTFU1, HTFU2, HTFU3
HTRI1, HTRI2, HTRI3
HTFI1, HTFI2, HTFI3
HF

Current (-) peak value
Voltage total harmonic distortion ratio (rms reference)
Voltage total harmonic distortion ratio (fundamental waveform reference)
Current total harmonic distortion ratio (rms reference)
Current total harmonic distortion ratio (fundamental waveform reference)
Frequency

Function ① Default mode

If no parameters are specified in the
data section, then this mode is used.
Default item data specified by the
":MEASure:ITEM:HARMonic"
command is created. In this case the
data order is fixed.

② Data (parameter) specification mode

If one or more parameters are specified
in the data section, then this mode is
used. Measurement item data specified
by <data> is created.

If data is specified which cannot be
selected, because of the number of input
units or the channels being used for
harmonic analysis, an execution error
results.

The order of arranging the data
(parameters) is freely selectable, and
data is created in the specified order.

Note

･ Up to 70 items can be responded,

however, in the data section
specification mode, the harmonic level,
harmonic proportion, and harmonic
phase angle cannot be obtained. Select
the output items with the
":MEASure:ITEM:HARMonic:..."
command, and get the measurement
values in the default mode.

･ To change the NR3 numerical data

format, see the ":TRANsmit:COLumn"
command.

Headers for harmonic level, harmonic percentage, harmonic phase angle are shown below. When headers
are ON, headers are affixed to all harmonic measurement value. The value of the last two digits of
characters are shown harmonic order.

Voltage

Level

Percentage

Phase
angle/
difference

────────────────────────────────────────────────────

8.3 Command Reference

Current
Power

Voltage
Current
Power

Voltage
Current
Power

HU1L00 to HU1L50, HU2L00 to HU2L50, HU3L00 to HU3L50
HI1L00 to HI1L50, HI2L00 to HI2L50, HI3L00 to HI3L50
HP1L00 to HP1L50, HP2L00 to HP2L50, HP3L00 to HP3L50, HPSUML00 to HPSUML50

HU1D00 to HU1D50, HU2D00 to HU2D50, HU3D00 to HU3D50
HI1D00 to HI1D50, HI2D00 to HI2D50, HI3D00 to HI3D50
HP1D00 to HP1D50, HP2D00 to HP2D50, HP3D00 to HP3D50, HPSUMD00 to HPSUMD50

HU1P00 to HU1P50, HU2P00 to HU2P50, HU3P00 to HU3P50
HI1P00 to HI1P50, HI2P00 to HI2P50, HI3P00 to HI3P50
HP1P00 to HP1P50, HP2P00 to HP2P50, HP3P00 to HP3P50

59

────────────────────────────────────────────────────

:MEASure:HARMonic:SORT?

Queries the harmonic during sorting.

Syntax

:MEASure:HARMonic:SORT?

Function

Queries the harmonicdata.
Creates data in the default order

Response

syntax

Example

Transmission

Response

Headers: ON
<header1> <data1 degree>;<data1>;
<header2> <data2 degree>;<data2>; ;

Headers: OFF

<NR3>;<NR3>;<NR3>,...

":MEASure:HARMonic:SORT?"
":HU1L01S 80;1.50E+02"

Note

specified by
"MEASure:ITEM:HARMonic:SORT"
and "MEASure:ITEM:HARMonic:LIST"
commands.

･ Up to 70 items can be responded.
･ Refer to "MEASure:HARMonic?" for

data beside the sort.

･ Select the output items with the

":MEASure:ITEM:HARMonic:SORT...."

Character
HU1L ch1 voltage level
01S First sort position
80 80 degrees

1.50E+02 150 V

or ":MEASure:ITEM:HARMonic:LIST"
command.

･ To change the NR3 numerical data

format, see the ":TRANsmit:COLumn"
command.

･ When sorting is disabled, the data is

invalid.

Headers for harmonic level, harmonic percentage, harmonic phase angle are shown below. When
headers are ON, headers are affixed to all harmonic measurement value. The two numeric digits
before the last character of the string (nnS) indicate the sort order. Up to fifty items can be sorted,
so the last three characters range from 01S to 50S.

Level

Percentage

Phase
angle/
difference

Voltage
Current
Power

Voltage
Current
Power

Voltage
Current
Power

HU1L01S to HU1L50S, HU2L01S to HU2L50S, HU3L01S to HU3L50S
HI1L01S to HI1L50S, HI2L01S to HI2L50S, HI3L01S to HI3L50S
HP1L01S to HP1L50S, HP2L01S to HP2L50S, HP3L01S to HP3L50S, HPSUML01S to
HPSUML50S

HU1D01S to HU1D50S, HU2D01S to HU2D50S, HU3D01S to HU3D50S
HI1D01S to HI1D50S, HI2D01S to HI2D50S, HI3D01S to HI3D50S
HP1D01S to HP1D50S, HP2D01S to HP2D50S, HP3D01S to HP3D50S, HPSUMD01S to
HPSUMD50S

HU1P01S to HU1P50S, HU2P01S to HU2P50S, HU3P01S to HU3P50S
HI1P01S to HI1P50S, HI2P01S to HI2P50S, HI3P01S to HI3P50S
HP1P01S to HP1P50S, HP2P01S to HP2P50S, HP3P01S to HP3P50S

────────────────────────────────────────────────────

8.3 Command Reference

60

────────────────────────────────────────────────────

:MEASure:ITEM:HARMonic:ALLClear

Clears all harmonic default output item.

Syntax

Example ":MEASure:ITEM:HARMonic:ALLClear"

:MEASure:ITEM:HARMonic:ALLClear

:MEASure:ITEM:HARMonic:ORDer

Sets the output order of the harmonic data.

Syntax

:MEASure:ITEM:HARMonic:ORDer

<NR1>,<NR1>,<ODD/EVEN/ALL>

first <NR1> = 0 to 50 (lower limit
order)
second <NR1> = 0 to 50 (upper limit
order)

Example ":MEASure:ITEM:HARMonic:ORDer

1,15,ODD"

Sets the default output item to odd
data up to the 15th.

:MEASure:ITEM:HARMonic:ORDer?

Queries the output order of the harmonic data.

Function

Function

Note

Clears all output items set by the
":MEASure:ITEM" command.

Sets the default items (harmonic output
order for the level, percentage, and
phase angle) to be transferred in the
response message to the
":MEASure:HARMonic?" query in the
default mode.

Some harmonics cannot be specified,
depending on the measurement
frequency.

In this case an execution error occurs.

Syntax

Response

syntax

Example

Transmission

Response

:MEASure:ITEM:HARMonic:ORDer?

":MEASURE:ITEM:HARMONIC:ORDER

<0-50>,<0-50>,<ODD/EVEN/ALL>"

":MEASure:ITEM:HARMonic:ORDer?"
":MEASURE:ITEM:HARMONIC:ORDER
1,15,ODD"

Function

Queries the default items (harmonic
output order for the level, percentage,
and phase angle) to be transferred in the
response message to the ":MEASure?"
query in the default mode.

────────────────────────────────────────────────────

8.3 Command Reference

61

────────────────────────────────────────────────────

:MEASure:ITEM:HARMonic:LIST

Sets the output item for the harmonic list.

Syntax

:MEASure:ITEM:HARMonic:LIST

<NR1>,..(up to 6 items)

<NR1> = 0to63

Example ":MEASure:ITEM:HARMonic:LIST

1,1,1,1,1,1"

As the default output items for the

normal measurement, the level,

percentage, and phase angle for U1

and P1 are specified.

128 64 32 16 8 4 2 1

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

Level

Percentage

Phase

angle

data1 - - HI3 HI2 HI1 HU3 HU2 HU1
data2 - - - - H
data3 - - HI3 HI2 HI1 HU3 HU2 HU1
data4 - - - - H
data5 - - HI3 HI2 HI1 HU3 HU2 HU1
data6 - - - - - HP3 HP2 HP1

Function

Note

Sets the default items (harmonic list for
the level, percentage, and phase angle)
to be transferred in the response
message to the
":MEASure:HARMonic?" query in the
default mode.

The item is set as shown below by
setting bits, to specify a single
numerical value.

For the harmonics to be output, it is
necessary beforehand to issue a
":MEASure:ITEM:HARMonic:ORDer"
command.

If the setting value is out of range, an

execution error occurs.

PSUM

PSUM

HP3 HP2 HP1

HP3 HP2 HP1

:MEASure:ITEM:HARMonic:LIST?

Queries the output item for the harmonic list.

Syntax

Response

syntax

Example

Transmission

Response

:MEASure:ITEM:HARMonic:LIST?

":MEASURE:ITEM:HARMONIC:LIST<0-

63>,..(up to 6 items)"

":MEASure:ITEM:HARMonic:LIST?"
":MEASURE:ITEM:HARMONIC:LIST

1,1,1,1,1,1"

Function

Queries the setting items specified by
the ":MEASure:ITEM:HARMonic:LIST"
command.

────────────────────────────────────────────────────

8.3 Command Reference

62

────────────────────────────────────────────────────

:MEASure:ITEM:HARMonic:NORMal

Sets the output item for the harmonic measurement value.

Syntax

:MEASure:ITEM:HARMonic:NORMal

Function

<NR1>,..(up to 5 items)

<NR1> = 0 to 63

Example ":MEASure:ITEM:HARMonic:NORMal

9,1,9,9,0"

As the default output items for the
normal measurement, HU1, HI1, HP1,

HTRU1, HTRI1, HTFU1, HTFI1 are

Note

specified.

128 64 32 16 8 4 2 1

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

RMS value data1 - - HI3 HI2 HI1 HU3 HU2 HU1

Power data2 - - - ­THD-R data3 - - HTRI3 HTRI2 HTRI1 HTRU3 HTRU2 HTRU1
THD-F data4 - - HTFI3 HTFI2 HTFI1 HTFU3 HTFU2 HTFU1

Frequency data5 - - - - - - - HF

HPSUM

:MEASure:ITEM:HARMonic:NORMal?

Queries the output item for the harmonic measurement value.

Sets the default items (rms value, active
power, total harmonic distortion ratio) to
be transferred in the response message
to the ":MEASure:HARMonic?" query
in the default mode.

The item is set as shown below by
setting bits, to specify a single
numerical value.

If the setting value is out of range, an
execution error occurs.

HP3 HP2 HP1

Syntax

Response

syntax

Example

Transmission

Response

MEASure:ITEM:HARMonic:NORMal?

":MEASURE:ITEM:HARMONIC:NORMAL

<0-63>,..(up to 5 items)"

":MEASure:ITEM:HARMonic:NORMal?"
":MEASURE:ITEM:HARMONIC:NORMAL

9,1,9,9,0"

Function

Queries the setting items specified by
the ":MEASure:ITEM:HARMonic:
NORMal" command.

────────────────────────────────────────────────────

8.3 Command Reference

63

────────────────────────────────────────────────────

:MEASure:ITEM:HARMonic:SORT

Specifies the (highest) harmonic order of analysis during sorting.

Syntax

:MEASure:ITEM:HARMonic:SORT

Function

<NR1>

<NR1> = 0 to 50

Example ":MEASure:ITEM:HARMonic:SORT 5"

Specify sorted results for the 1st
through 5th harmonics.

Note ・An execution error results if the

:MEASure:ITEM:HARMonic:SORT?

Query the (highest) harmonic order of analysis when sorted.

Syntax

Response

syntax

:MEASure:ITEM:HARMonic:SORT?

":MEASure:ITEM:HARMonic:SORT

<data1>" <0-50>"

Function

Specifies the highest harmonic order for
returning data in response to
"MEASure:HARMonic:SORT?". Items
to be output are according to
"MEASure:HARMonic:LIST?".

numeric value specified is out of range.

・Sortingisbylevel,andthecontentand

phase angle are output as degree data
for the respective level.

・All harmonic orders from the 1st to the

specified order will be output.
Intermediate orders cannot be skipped.

・The outputs items are always as

indicated by the
"MEASure:HARMonic:LIST?"
command.

Obtains the harmonic orders specified
by the
"MEASure:ITEM:HARMonic:SORT"
command.

Example

Transmission

Response

":MEASure:ITEM:HARMonic:SORT?"
":MEASure:ITEM:HARMonic:SORT 5"

MEASure:ITEM:HARMonic:WAVE

Sets the output item for the harmonic waveform data.

Syntax

Example ":MEASure:ITEM:HARMonic:WAVE

:MEASure:ITEM:HARMonic:WAVE

<NR1>,<NR1>

<NR1> = 0to63

1,1"

As the default output items for the

normal measurement, +Upeak and ­Upeak are specified.

128 64 32 16 8 4 2 1

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

+Peak data1

-Peak data2

- - HPIP3 HPIP2 HPIP1 HPUP3 HPUP2 HPUP1

- - HMIP3 HMIP2 HMIP1 HMUP3 HMUP2 HMUP1

Function

Note

Sets the default items (waveform data)
to be transferred in the response
message to the
":MEASure:HARMonic?" query in the
default mode.

The item is set as shown below by
setting bits, to specify a single
numerical value.

If the setting value is out of range, an

execution error occurs.

────────────────────────────────────────────────────

8.3 Command Reference

64

────────────────────────────────────────────────────

:MEASure:ITEM:HARMonic:WAVE?

Queries the output item for the harmonic waveform data.

Syntax

Response

syntax

Example

Transmission

Response

:MEASure:ITEM:HARMonic:WAVE?

":MEASURE:ITEM:HARMONIC:WAVE <0-

63>,<0-63>"

":MEASure:ITEM:HARMonic:WAVE?"
":MEASURE:ITEM:HARMONIC:WAVE

1,1"

:ZEROadjust:HARMonic

Carries out the zero adjustment of the 9605-01.

Syntax

Example ":ZEROadjust:HARMonic"

:ZEROadjust:HARMonic

Function

Function

Queries the setting items specified by
the ":MEASure:ITEM:HARMonic
:WAVE" command.

This carries out zero adjustment of the
analog section of the 9605-01.
If there is no specification, zero
adjustment is carried out for all
channels.

────────────────────────────────────────────────────

8.3 Command Reference

65

────────────────────────────────────────────────────

8.4 Specific Commands Reference

Specific commands reference for harmonic analysis

Command Data format Explanation

:DATAout:ITEM:HARMonic:ALLClear

:DATAout:ITEM:HARMonic:ORDer

:DATAout:ITEM:HARMonic:ORDer?

:DATAout:ITEM:HARMonic:LIST

:DATAout:ITEM:HARMonic:LIST?

:DATAout:ITEM:HARMonic:NORMal

:DATAout:ITEM:HARMonic:NORMal?

:DATAout:ITEM:HARMonic:WAVE

:DATAout:ITEM:HARMonic:WAVE?

:DISPlay:HARMonic:GRAPh

:DISPlay:HARMonic:GRAPh?

NR1 numerical data (2)/
Character data (1)

NR1 numerical data (6)

NR1 numerical data (5)

NR1 numerical data (2)

NR1 numerical data (1)

Clears all default output item.

Sets the harmonic output order.

Queries the harmonic output order.

Sets the output item for the harmonic list.

Queries the output item for the harmonic
list.

Sets the output item for the harmonic
measurement.

Queries the output item for the harmonic
measurement.

Sets the output item for the harmonic
peak data.

Queries the output item for the harmonic
peak data.

Sets the displays for the harmonic graph
screen.

Queries the displays for the harmonic
graph screen.

:DISPlay:HARMonic:LIST

:DISPlay:HARMonic:LIST?

:DISPlay:HARMonic:VECTor

:DISPlay:HARMonic:WAVE

:DISPlay:HARMonic:WAVE?

:DISPlay?

:HARMonic:CHANnel

:HARMonic:CHANnel?

:HARMonic:DELTa

:HARMonic:DELTa?

:HARMonic:DIVider

:HARMonic:DIVider?

NR1 numerical data (1)

NR1 numerical data (1)

NR1 numerical data (1)

ON/OFF (1)

NR1 numerical data (1)

Sets the displays for the harmonic list
screen.

Queries the displays for the harmonic list
screen.

Sets the displays for the harmonic vector
screen.

Sets the displays for the harmonic
waveform screen.

Queries the displays for the harmonic
waveform screen.

Queries the current display setting.

Sets the harmonic analysis screen.

Queries the harmonic analysis screen.

Selects On/Off of wiring conversion.

Queries the wiring conversion.

Sets the frequency dividing ratio of the
external sync signal.

Queries the external sync signal
frequency dividing ratio.

:HARMonic:LPF

:HARMonic:LPF?

────────────────────────────────────────────────────

NR1 numerical data (1)

Averaging setting

Queries the average setting.

8.4 Specific Commands Reference

66

────────────────────────────────────────────────────

Command Data format Explanation

:HARMonic:PHASezero

:HARMonic:PLL

:HARMonic:PLL?

:HARMonic:RTC

:HARMonic:RTC?

:HARMonic:SORT

:HARMonic:SORT?

:HARMonic:TRIGger

:HARMonic:TRIGger?

:MEASure:HARMonic?

:MEASure:HARMonic:SORT?

:MEASure:ITEM:HARMonic:ALLClear

Character data (1)

NR1 numerical data (1)

Character data (1)

ON/OFF (1)

Character data (70)

Phase angle zero adjust of external sync
signal

Sets the harmonic analysis PLL source.

Queries the harmonic analysis PLL
source.

Sets the harmonic RTC counter.

Queries the setting of the harmonic RTC
counter.

Selects the sort basis for harmonic
analysis.

Query the sorting basis for harmonic
analysis.

Enables or disables the trigger mode.

Queries the trigger mode setting.

Queries the harmonic analysis data.

Queries the harmonic during sorting.

Clears the output item for the harmonic
default.

:MEASure:ITEM:HARMonic:ORDer

:MEASure:ITEM:HARMonic:ORDer?

:MEASure:ITEM:HARMonic:LIST

:MEASure:ITEM:HARMonic:LIST?

:MEASure:ITEM:HARMonic:NORMal

:MEASure:ITEM:HARMonic:NORMal?

:MEASure:ITEM:HARMonic:SORT

:MEASure:ITEM:HARMonic:SORT?

:MEASure:ITEM:HARMonic:WAVE

:MEASure:ITEM:HARMonic:WAVE?

:ZEROadjust:HARMonic

NR1 numerical data (2)/
character data (1)

NR1 numerical data (6)

NR1 numerical data (5)

NR1 numerical data (1)

NR1 numerical data (1)

Sets the output order of the harmonic
data.

Queries the setting of the output order of
the harmonic data.

Sets the output item of the harmonic list.

Queries the output item of the harmonic
list.

Sets the output item of the harmonic
measurement.

Queries the output item of the harmonic
measurement.

Specifies the (highest) harmonic order of
analysis during sorting.

Query the (highest) harmonic order of
analysis when sorted.

Sets the displays for the harmonic
waveform screen.

Queries the setting of the displays for the
harmonic waveform screen.

Carries out the zero adjustment.

────────────────────────────────────────────────────

8.4 Specific Commands Reference

67

────────────────────────────────────────────────────

8.5 Valid Commands for Each Status

Harmonic analysis

Integration condition

Command

:DATAout:ITEM:HARMonic:ALLClear
:DATAout:ITEM:HARMonic:ORDer
:DATAout:ITEM:HARMonic:ORDer?
:DATAout:ITEM:HARMonic:LIST
:DATAout:ITEM:HARMonic:LIST?
:DATAout:ITEM:HARMonic:NORMal
:DATAout:ITEM:HARMonic:NORMal?
:DATAout:ITEM:HARMonic:WAVE
:DATAout:ITEM:HARMonic:WAVE?
:DISPlay:HARMonic:GRAPh
:DISPlay:HARMonic:GRAPh?
:DISPlay:HARMonic:LIST
:DISPlay:HARMonic:LIST?
:DISPlay:HARMonic:VECTor
:DISPlay:HARMonic:WAVE
:DISPlay:HARMonic:WAVE?
:DISPlay?
:HARMonic:CHANnel
:HARMonic:CHANnel?
:HARMonic:DELTa
:HARMonic:DELTa?
:HARMonic:DIVider
:HARMonic:DIVider?
:HARMonic:LPF
:HARMonic:LPF?
:HARMonic:PHASezero
:HARMonic:PLL
:HARMonic:PLL?
:HARMonic:RTC
:HARMonic:RTC?
:HARMonic:SORT
:HARMonic:SORT?
:HARMonic:TRIGger
:HARMonic:TRIGger?
:MEASure:HARMonic?
:MEASure:HARMonic:SORT?

Reset Start Stop

HOLD PEAK HOLD PEAK HOLD PEAK

OFF ON ON OFF ON ON OFF ON ON

● － － － － － － － －

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● ● ● ● ● ● ● ● ●

● － － － － － － － －

────────────────────────────────────────────────────

8.5 Valid Commands for Each Status

68

────────────────────────────────────────────────────

Integration condition

Command

:MEASure:ITEM:HARMonic:ALLClear
:MEASure:ITEM:HARMonic:ORDer
:MEASure:ITEM:HARMonic:ORDer?
:MEASure:ITEM:HARMonic:LIST
:MEASure:ITEM:HARMonic:LIST?
:MEASure:ITEM:HARMonic:NORMal
:MEASure:ITEM:HARMonic:NORMal?
:MEASure:ITEM:HARMonic:SORT
:MEASure:ITEM:HARMonic:SORT?
:MEASure:ITEM:HARMonic:WAVE
:MEASure:ITEM:HARMonic:WAVE?
:ZEROAdjust:HARMonic

Reset Start Stop

HOLD PEAK HOLD PEAK HOLD PEAK

OFF ON ON OFF ON ON OFF ON ON

● － － － － － － － －

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

● ● ● ● ● ● ● ● ●

● － － － － － － － －

────────────────────────────────────────────────────

8.5 Valid Commands for Each Status

69

────────────────────────────────────────────────────

8.6 Specific Command Tree

Harmonic analysis

:DATAout:ITEM:HARMonic

:DISPlay:HARMonic

:DISPlay?

:HARMonic

:ALLClear
:ORDer
:ORDer?
:LIST
:LIST?
:NORMal
:NORMal?
:WAVE
:WAVE?

:GRAPh
:GRAPh?
:LIST
:LIST?
:VECTor
:WAVE
:WAVE?

:CHANnel
:CHANnel?
:DELTa
:DELTa?
:DIVider
:DIVider?
:LPF
:LPF?
:PHASezero
:PLL
:PLL?
:RTC
:RTC?
;SORT
:SORT?
:TRIGger
:TRIGger?

────────────────────────────────────────────────────

8.6 Specific Command Tree

70

────────────────────────────────────────────────────

:MEASure

:ZEROAdjust:HARMonic

:HARMonic?
:HARMonic:SORT?
:ITEM:HARMonic

:ALLClear
:ORDer
:ORDer?
:LIST
:LIST?
:NORMal
:NORMal?
:SORT
:SORT?
:WAVE
:WAVE?

────────────────────────────────────────────────────

8.6 Specific Command Tree

71

y

────────────────────────────────────────────────────

8.7 The Output Item Bits

(1) Harmonic analysis

The data specified by :MEAS:ITEM:HARMonic is output in the following
order.

:NORMAL

RMS value data1 - - HI3 HI2 HI1 HU3 HU2 HU1 1

Active
power

THD-R data3 - - HTRI3 HTRI2 HTRI1 HTRU3 HTRU2 HTRU1 3

THD-F data4 - - HTFI3 HTFI2 HTFI1 HTFU3 HTFU2 HTFU1 4

Frequency data5 - - - - - - - HF 5

data2 - - - -

:LIST

Level

Percentage

Phase angle

data1 - - HI3 HI2
data2 - - - ­data3 - - HI3 HI2
data4 - - - ­data5 - - HI3 HI2
data6 - - - -

:WAVE

+Peak data1

-Peak data2

Waveform data3

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

HPSUM

bit 7 bit 6 bit 5 bit 4

bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0

- - HPIP3 HPIP2 HPIP1 HPUP3 HPUP2 HPUP1 12

- - HMIP3 HMIP2 HMIP1 HMUP3 HMUP2 HMUP1 13

- - HWI3 HWI2 HWI2 HWU3 HWU2 HWU1 14*

bit 3

HI1

HPSUM

HI1

HPSUM

HI1

HP3 HP2 HP1 2

bit 2 bit 1 bit 0

HU3 HU2 HU1 6
HP3 HP2 HP1 7
HU3 HU2 HU1 8
HP3 HP2 HP1 9
HU3 HU2 HU1 10
HP3 HP2 HP1 11

-

Item

No.

Item

No.

Item

No.

NOTE

*:DATAout onl

The bits set by :MEAS:ITEM:HARMonic are scanned according to the
following rules, and returned in this order in a response message.

The output data sequence is as follows.

① For item number 1, bits 0 to 5 are scanned in order, and when a bit is set to

1 the calculation value for the corresponding item is returned.

② For item number 2, bits 0 to 3 are scanned in order, and when a bit is set to

1 the calculation value for the corresponding item is returned.

③ For item number 3, bits 0 to 5 are scanned in order, and when a bit is set to

1 the calculation value for the corresponding item is returned.

And so on, repeating up to item number 14.

A bit is ignored if it is set for a calculation value which cannot be obtained
in the power measurement configuration being used.

────────────────────────────────────────────────────

8.7 The Output Item Bits

72

────────────────────────────────────────────────────

────────────────────────────────────────────────────

8.7 The Output Item Bits

73

────────────────────────────────────────────────────

Chapter 9

Specifications

(1) General Specifications

Application

Measurement lines

Number of channels

Measurement range

Measurement system

Analysis method

Type of window

Fitted in a 3194 product (factory-fitted option)

Single-phase,two-wire (1P2W)/ Single-phase,three-wire (1P3W)/ Three­phase,three-wire (3V3A, 3P3W)/ Three-phase,four-wire (3P4W)

Maximum of 3 channels selectable from channels 1 to 6, depending on 3194
product wiring mode

1ch 2ch 3ch 4ch 5ch 6ch Using channels

① 1P2W 1P2W 1P2W 1P2W 1P2W 1P2W 1+2+3, 2+3+4, 3+4+5, 4+5+6

② 1P3W/3P3W 1P2W 1P2W 1P2W 1P2W 12+3, 3+4+5, 4+5+6

③ 1P3W/3P3W 1P3W/3P3W 1P2W 1P2W 12+3, 34+5, 4+5+6

④ 1P3W/3P3W 1P3W/3P3W 1P3W/3P3W 12+3, 34+5, 56

⑤ 3V3A/3P4W 1P2W 1P2W 1P2W 123, 4+5+6

⑥ 3V3A/3P4W 1P3W/3P3W 1P2W 123, 45+6

⑦ 3V3A/3P4W 3V3A/3P4W 123, 456

Basic frequency 10 Hz to 4.5 kHz

PLL synchronization/fixed clock

FFT

Rectangular (gaps in window)

Display update rate

A/D

Computational accuracy

PLL source

External Sync Signal

Crest factor

Output function

────────────────────────────────────────────────────

Every 1 window (excluding when FD/printer output and communication)

12 bits

32 bits (floating-point calculations)

Selectable from the following sources:
U of the selected combination of channels for measurement
I of the selected combination of channels for measurement
Derived from an external sync signal

Possible to synchronize with external synchronization signals input from the

3194 main product's analog connector for U/I/P analysis.
Input level (for sine wave, 1 to 10 Vrms, 100 kHz or less)
Frequency splitting function included (1/1 to 1/255)

2.5 max. (current, voltage)

FD, printer, GP-IB, RS-232C

74

────────────────────────────────────────────────────

Sampling rate

Basic

frequency (Hz)

Sampling

rate (Hz)

Window

width

Analysis harmonic

order

Waveform

display

PLL-

synchronized

range

Fixed clock

10 to 17.5 f X 8192 1 cycle 3000 th

(10 kHz or less)

17.5 to 35 f X 8192 1 cycle 3000 th
(10 kHz or less)

35 to 70 f X 8192 1 cycle 3000 th

(100 kHz or less)

70 to 140 f X 4096 2 cycles 1500 th

(100 kHz or less)

140 to 280 f X 2048 4 cycles 800 th

(100 kHz or less)

280 to 560 f X 1024 8 cycles 400 th

(100 kHz or less)

560 to 1120 f X 512 16 cycles 200 th

(100 kHz or less)

1120 to 2240 f X 256 32 cycles 100 th

(100 kHz or less)

2240 to 4500 f X 128 64 cycles 50 th

(100 kHz or less)

－－－－

50 X 8192

Fixation

2 cycles 3000 th

(100 kHz or less)

1 cycle

2 cycles

4 cycles

1 cycles

(50 Hz input)

Accuracy requirement of analysis count is limited by the frequency
indicated in the parentheses.
The waveform number displayed on the screen is different depending on
the frequency.
If the fixed clock approach is used, the basic frequency is set to 50 Hz.

────────────────────────────────────────────────────

75

────────────────────────────────────────────────────

(2) Measurement items

Basic items: Voltage rms value, current rms value, active power value, frequency,

±Upeak, ±Ipeak

Harmonic measurement items

Measurement items Voltage Current Active power

Harmonic level

Harmonic percentage

Harmonic phase angle

Total harmonic
distortion ratio *1

(THD-F and THD-R)

Harmonic voltage Harmonic current Harmonic power

Harmonic voltage
percentage

Harmonic voltage
phase angle

Total harmonic
voltage distortion ratio

Harmonic current
percentage

Harmonic current
phase angle

Total harmonic
current distortion ratio

*1 THD-F: total harmonic distortion as proportion of the fundamental

THD-R: total harmonic distortion as proportion of the effective value

(3) Screen Displays

Display screen Display items

List display

Graph display

Vector display

Waveform
display

Voltage rms value, current rms value, active power value, harmonic level,
harmonic percentage, harmonic phase angle, total harmonic distortion ratio

Harmonic level, harmonic percentage, harmonic phase angle

Harmonic level, harmonic phase angle

Voltage waveform, current waveform, voltage rms value, current rms value,
voltage peak value, current peak value, FFT display, Waveform zoom display

Harmonic power
percentage

Harmonic power phase
angle

────────────────────────────────────────────────────

76

────────────────────────────────────────────────────

(4) Analysis accuracy

(23℃±5℃, 80%RHmax.warming-up 1 hour or more)

Basic
wave

Harmonic

wave

Basic
wave

Harmonic

wave

Frequency

10～35 Hz

10～100 Hz

100 Hz～1kHz

1～5kHz

5～10 kHz

35～500 Hz

500 Hz～4.5 kHz

35～100 Hz

100 Hz～10 kHz

10～50 kHz

50～100 kHz

Amplitude accuracy

(Voltage/current/active power)

±0.5%rdg.±0.05%f.s. ± 1 deg

±0.5%rdg.±0.05%f.s. ± 1 deg

±1.0%rdg.±0.1%f.s. ± 2 deg
±5.0%rdg.±1.0%f.s. ± 5 deg

±15%rdg.±1.0%f.s. ―――

±0.5%rdg.±0.05%f.s. ± 1 deg

±1.0%rdg.±0.1%f.s. ± 2 deg

±0.5%rdg.±0.05%f.s. ± 1 deg

±2.0%rdg.±0.1%f.s. ± 2 deg
±5.0%rdg.±1.0%f.s. ± 5 deg

±15%rdg.±1.0%f.s. ―――

Phase

difference

* The valid input range is from 5% to 110%.
* The voltage or current level selected for the PLL source is at least 10% of

range.

* Accuracy requirement is set to below 10 kHz if the PLL synchronization

range is from 10 Hz to 17.5 Hz or from 17.5 Hz to 35 Hz, or below 100
kHz if the synchronization range is 35 Hz or higher.

* Accuracy requirement is not set if the basic frequency synchronized with

PLL is not integer multiples of frequency composition.

* If the fixed clock is used, frequency composition other than integer

multiples of 50 Hz does not have accuracy requirement set up.

* In actual use, the rdg accuracy of the combined input unit is added to the

above analysis accuracy. Also, when it is used together with a clamp
(9270, 9271, 9272, 9277, 9278, or 9279), the accuracy of the clamp and
the frequency characteristics add to the analysis accuracy.

* If LPF of the input unit is used, the accuracy requirement is set to below

1/10 of LPF.

* While the phase angle is expressed using the PLL source's basic wave as

the base standard, the accuracy requirement for the phase angle of the high
frequency composition for the basic wave composition is not set.

* The phase for external synchronization signals is defined as variance

amount with sine wave (0.1 to 10 Vrms) input to the external
synchronization signals and Ext frequency ratio (1/1) setting conditions.
Accuracy requirement for other waveforms is not set.

* In combination with the 9601, the phase accuracy above 5 kHz is not

specified.

────────────────────────────────────────────────────

77

────────────────────────────────────────────────────

(5) Basic Calculation Formulas

Item Mode 1P2W 1P3W 3P3W 3Ｖ3A 3P4W

Voltage rms value

M-1

1

=Σ{U

U

M

(i)

s=0

(i)s

Current rms value

M-1

1

= Σ{I

I

M

(i)

s=0

(i)s

Active rms value

M-1

1

=Σ{U

P

M

(i)

s=0

(i)s

U

(i)

U

(i+1)

2

}

U

(i+2)

Ｉ

(i)

Ｉ

(i)s

(i+1)

Ｉ

(i+2)

P

(i)

P

(i+1)

2

P

(i+2)

}

2

}

I

U

(i)

U

(i+1)

Ｉ

(i)

Ｉ

(i+1)

P

(i)

P

(i+1)

P

(i)+P(i+1)

U

(i)

U

(i+1)

Ｉ

(i)

Ｉ

(i+1)

P

(i)

P

(i+1)

P

(i+2)

P

(i)+P(i+1)

U

(i)

U

(i+1)

U

(i+2)

Ｉ

(i)

Ｉ

(i+1)

Ｉ

(i+2)

P

(i)

P

(i+1)

P

(i+2)

P

(i)+P(i+1)

U

(i)

U

(i+1)

U

(i+2)

Ｉ

(i)

Ｉ

(i+1)

Ｉ

(i+2)

P

(i)

P

(i+1)

P

(i+2)

P

(i)+P(i+1)+P(i+2)

・(i), (i+1), and (i+2) are the measurement channel numbers.
・M is the number of samples; s is the sample point number.
・The active power of 3P3W and 3V3A channel are displayed but there is no meaning. However, only a

sum value (Additional value) has a meaning.

────────────────────────────────────────────────────

78

────────────────────────────────────────────────────

(6) Harmonic Basic Calculation Formulas

Items

Voltage

Voltage phase angle

Current

Current phase angle

Active power

Phase difference
between voltage and
current

Harmonic voltage
percentage

Harmonic current
percentage

Harmonic power
percentage

Total harmonic
voltage distortion ratio

Total harmonic
current distortion ratio

Total harmonic
voltage distortion ratio

Total harmonic
current distortion ratio

Process

U [Ｖrms]

U

k

θU [。] θUk

Ｉ [Arms]

Ｉ

k

θＩ [。] θUIk

[%]

P

k

θIk

HDUk

HDIk

HD

Pk

P[W]

θU

Ｉ

HD

U

[%]

HD

Ｉ

HD

P

THD

UF

[。]

[%]

[%]

── ──

[%]

THD

IF

[%]

THD

UR

── ──

[%]

THD

IR

The kth-order harmonic

+(

kr

U

ki

+(

kr

ki

×

ki

U

k

U

I

ki

Ｉ

-θ

2

}

)

ki

2

}

)

ki

(i)

U

θ

tan

tan

kr

U

U

I

k

I

P
P

{(

U

-1

{(

I

-1

×

=θ

(i)k

k

1

×100

1

k

1

2

)

kr

U

-

2

)

kr

I

-I

U

Ｉ

kr+

(i)

×100

×100

Total value up to

Kth-order harmonic

K

U

K

Σ(

K=2

2

)

U

k

── ──

K

Ｉ

K

Σ(

K=2

2

)

I

k

── ──

K

Σ

P

P

K

U

k

── ──

K=2

k

── ──

k

2

)

Σ(

U

THD

THD

THD

THD

UF

IF

UR

IR

k=2

k

Σ(

k=2

k

Σ(

k=2

k

Σ(

k=2

k

U

I

U

I

×100

I

2

)

I

k

×100

I

2

)

U

k

×100

2

)

I

k

×100

Note 1: (i), (i+1), and (i+2) are the measurement channel numbers.
Note 2: The subscript "k" on U, I, and P indicates the harmonic number, so for example "U

" is the

1

fundamental component of voltage. A "K" indicates the total harmonic analyzed.

Note 3: The subscripts "r" and "i" on Uk and Ik indicate the real and imaginary components of the results

of FFT analysis.

Note 4: The harmonic voltage phase angle and harmonic current phase angle are corrected and displayed

taking the PLL source forming the phase reference as 0

。

. A positive sign indicates the phase

leading, and a negative sign the phase lagging. (Figure 1 on the next page)

Note 5: The harmonic voltage-current phase difference indicates the difference between the harmonic

voltage phase angle and the harmonic current phase angle for the same harmonic. (Figure 2 on the
next page)

────────────────────────────────────────────────────

79

────────────────────────────────────────────────────

Ⅱ

Ⅲ

-90

(-)

I mag

+180

｡

Ⅰ

(+)(-)

(+)

+90

Ⅳ

｡

Real

Vkr

｡

Vki

φVk

｡

0

When the harmonic voltage

U

-1

tan

Ⅱ, Ⅲ:

U

ki=0,Ukr<0:

U

ki=0,Ukr>0:

U

ki<0,Ukr=0:

U

ki=0,Ukr=0:

Ⅰ:

Ⅳ:

tan

tan

-1

-1

+90

-90
+180

｡

0

-U
U

-U

U

-U

｡
｡

｡

+180

-180

｡

｡

kr

ki

kr

ki

kr

ki

Phase reference

Figure 1

90°

180°

Outflow

Power phase angle

Lead

Voltage/current
phase angle

Lag

-90°

Figure 2

Inflow

0°

────────────────────────────────────────────────────

80

────────────────────────────────────────────────────

(7) Harmonic calculations for each wiring mode

Item

Mode

Harmonic voltage

Harmonic current

Harmonic power

Harmonic voltage
percentage

Harmonic current
percentage

Harmonic power
percentage

Harmonic voltage
phase angle

Harmonic current
phase angle

Harmonic phase
difference between
voltage and current

Total harmonic
voltage distortion
ratio (THD-F)

Total harmonic
current distortion
ratio (THD-F)

Total harmonic
voltage distortion
ratio (THD-R)

Total harmonic
current distortion
ratio (THD-R)

１Ｐ２W １P３W ３P３W ３V３A ３P４W

U

(i)k

U

(i+1)k

U

(i+2)k

(i)k

Ｉ

(i+1)k

Ｉ

(i+2)k

Ｉ

(i)k

P

(i+1)k

P

(i+2)k

P

(i)Uk

HD

(i+1)Uk

HD

(i+2)Uk

HD
HD (i)Ik

HD (i+1)Ik
HD (i+2)Ik

HD (i)Pk
HD (i+1)Pk
HD (i+2)Pk

θ

(i)Uk

θ

(i+1)Uk

θ

(i+2)Uk

θ

(i)Ik

θ

(i+1)Ik

θ

(i+2)Ik

(i)k

θ

(i+1)k

θ

(i+2)k

θ

THD (i)

U

THD (i+1)
THD (i+2)

(i)IF

THD

(i+1)IＦ

THD

(i+2)IＦ

THD

THD (i)

U

THD (i+1)
THD (i+2)

THD (i)

I

THD (i+1)
THD (i+2)

U

(i)k

U

(i+1)k

(i)k

Ｉ

(i+1)k

Ｉ

(i)k

P

(i+1)k

P

(i)k+P (i+1)k

P

HD
HD

HD (i)Ik
HD (i+1)Ik

HD (i)pk
HD (i+1)pk
HD (i)pk+HD (i+1)pk

θ

(i)Uk

θ

(i+1)Uk

θ

(i)Ik

θ

(i+1)Ik

(i)k

θ

(i+1)k

θ

F

THD (i)

U

F

THD (i+1)

U

F

THD
THD

R

THD (i)

U

R

THD (i+1)

U

R

R

THD (i)

I

R

THD (i+1)

I

R

(i)Uk
(i+1)Uk

(i)IF
(i+1)IＦ

U

(i)k

U

(i+1)k

(i)k

Ｉ

(i+1)k

Ｉ

(i)k

P

(i+1)k

P

(i)k+P (i+1)k

P

(i)Uk

HD

(i+1)Uk

HD

HD (i)Ik
HD (i+1)Ik

HD (i)pk
HD (i+1)pk
HD (i)pk+HD (i+1)pk

θ

(i)Uk

θ

(i+1)Uk

θ

(i)Ik

θ

(i+1)Ik

(i)k

θ

(i+1)k

θ

U

F

U

U

R

U

I

R

I

R

THD (i)

U

F

THD (i+1)

THD
THD

THD (i)

R

THD (i+1)

THD (i)
THD (i+1)

U

(i)IF
(i+1)IＦ

U

U

I

R

I

F

F

R

R

R

U

(i)k

U

(i+1)k

U

(i+2)k

(i)k

Ｉ

(i+1)k

Ｉ

(i+2)k

Ｉ

(i)k

P

(i+1)k

P

(i+2)k

P

(i)k+P (i+1)k

P

(i)Uk

HD

(i+1)Uk

HD

(i+2)Uk

HD
HD (i)Ik

HD (i+1)Ik
HD (i+2)Ik

HD (i)pk
HD (i+1)pk
HD (i+2)pk
HD (i)pk+HD (i+1)pk+
HD (i+2)pk

θ

(i)Uk

θ

(i+1)Uk

θ

(i+2)Uk

θ

(i)Ik

θ

(i+1)Ik

θ

(i+2)Ik

(i)k

θ

(i+1)k

θ

THD (i)

U

THD (i+1)
THD (i+2)

THD
THD
THD

THD (i)
THD (i+1)
THD (i+2)

THD (i)
THD (i+1)
THD (i+2)

U
U

(i)IF
(i+1)IＦ
(i+2)IＦ

U

U
U

I

R

I
I

F

F
F

R

R
R

R
R

U

(i)k

U

(i+1)k

U

(i+2)k

(i)k

Ｉ

(i+1)k

Ｉ

(i+2)k

Ｉ

(i)k

P

(i+1)k

P

(i+2)k

P

(i)k+P(i+1)k+P(i+2)k

P

HD
HD
HD

HD (i)Ik
HD (i+1)Ik
HD (i+2)Ik

HD (i)pk
HD (i+1)pk
HD (i+2)pk
HD (i)pk+HD (i+1)pk+
HD (i+2)pk

θ

(i)Uk

θ

(i+1)Uk

θ

(i+2)Uk

θ

(i)Ik

θ

(i+1)Ik

θ

(i+2)Ik

(i)k

θ

(i+1)k

θ

(i+2)k

θ

THD (i)
THD (i+1)
THD (i+2)

THD
THD
THD

THD (i)
THD (i+1)
THD (i+2)

THD (i)
THD (i+1)I R
THD (i+2)

(i)Uk
(i+1)Uk
(i+2)Uk

U

(i)IF
(i+1)IＦ
(i+2)IＦ

U

I

F

U

F

U

F

R

U

R

U

R

R

I

R

────────────────────────────────────────────────────

APPENDIX 1

────────────────────────────────────────────────────

Appendix

1

2

3

1P2W w iring

SOURCE LOAD

①

① When the U1 is selected as the PLL source

When the load is purely resistive, the phase difference between voltage and
current is 0.

② When the load is capacitive

The current has lagging phase, and when the load is inductive, the current
has leading phase.

4

5

6

7

8

9

10

②

────────────────────────────────────────────────────

11

12

13

14

15

APP

APPENDIX 2

────────────────────────────────────────────────────

1P3W wiring

SOURCE LOAD

①

① When the U1 is selected as the PLL source

U2 is reverse phased 180°from U1.

② When the load is purely resistive

The phase difference between U1 and I1 and U2 and I2 is 0, as shown
above. When the load is inductive, the current phase lags the voltage.

②

────────────────────────────────────────────────────

APPENDIX 3

────────────────────────────────────────────────────

3P3W w iring

SOURCE LOAD

①

① When the U1 is selected as the PLL source

Voltage is measured between lines and current is measured with phase, so
U2 is phased 60°from U1. When the load is purely resistive, I1 lags U1 by
30°,andI2leadsU2by30°.

② With an inductive load such as a motor, when the effective power of ch1 is

negative, the phase of I1 lags U1 by more than 90°.

②

────────────────────────────────────────────────────

APPENDIX 4

────────────────────────────────────────────────────

3V3A wiring

SOURCE

LOAD

①

① When the U1 is selected as the PLL source

Based on 3P3W wiring, the three channels of voltage and current are
summed. The figures above show the state when the load is purely resistive.

② With an inductive load such as a motor

The effective power of ch1 appears negative because I1 lags U1 by more
than 90°. However, the summed data for ch(3) is not related to power
measurement, so wiring can be reversed.

②

────────────────────────────────────────────────────

APPENDIX 5

────────────────────────────────────────────────────

3P4W w iring

SOURCE LOAD

①

① When the U1 is selected as the PLL source

To measure voltage and current phase, the phase of the voltage of each
channel is shifted 120°. When the load is purely resistive, as shown above,
the phase difference of the voltage and current of each channel is 0.
Compared to 3P3W (3V3A) wiring, ch(2) and ch(3) are switched.

② With an inductive load such as a motor, the phase of the current lags the

voltage.

②

────────────────────────────────────────────────────

APPENDIX 6

────────────────────────────────────────────────────

3V3A Wiring (Δ-Y conversion)

SOURCE

Voltage vector diagram of 3V3A
Psum = P1 + P2

LOAD

Δ-Y

Voltage vector diagram after conversion
Psum = P1 + P2 +P3

NOTE

■ Conversion Theory

The momentary waveforms of the line voltages (U1, U2, and U3) are
converted into momentary waveforms for phase voltages (u1, u2, and u3)
using the following operation expressions ("s" refers to value).
u1s = (U1s-U3s)/3,　u2s = (U3s+U2s)/3,　u3s = (-U2s-U1s)/3

Δ-Y

Δ-Y

･ Since N is a virtual neutral point, phase voltages may differ from actual

values.

･ Following conversion, the three power meter method is applied.
･ Following conversion, the 9605-01 vector screen changes as follows. (Load:

resistance)

────────────────────────────────────────────────────

APPENDIX 7

n

────────────────────────────────────────────────────

3P4W Wiring (Y-Δ conversion)

SOURCE

Voltage vector diagram of 3P4W
Psum = P1 + P2 +P3

LOAD

Y-Δ

SOURCE

Voltage vector diagram after conversio
Psum = P1 + P3

LOAD

NOTE

■ Conversion Theory

The momentary waveforms for phase voltages (U1, U2, and U3) are
converted into momentary waveforms for line voltages (u1, u2, and u3)
using the following operation expressions ("s" refers to sampling value).
u1s = (U1s-U2s), u2s = (U3s-U1s) , u3s = (U3s-U2s)

Y-Δ

Y-Δ

･ Following conversion, the two power meter method is applied.
･ Following conversion, the 9605-01 vector screen changes as follows. (Load:

resistance)

────────────────────────────────────────────────────

APPENDIX 8

────────────────────────────────────────────────────

Example of Motor-Induced Voltage Measurement

Run the motor by operating the load (motor), without supplying voltage from
the inverter to the motor, and measure the induced voltage generated at the
motor terminal.

■ Connection

1. Connect voltage and current lines as shown below, in the same way as
when the motor is operated using an inverter.

2. The rotation-sensor signal must be connected to pins 48/47 of the "EXT
CONTROL" terminal on the rear panel of the 3194. The required input
level is a 1- to 10-Vrms sine wave or a TTL-level rectangular wave. Please
note that this input terminal is not insulated from the chassis. In addition,
set the PLL source to "EXT (con)."

3. To insulate the rotation-sensor signal, set the PLL source to "EXT (CH6)";
it will be taken in as a CH6 voltage input. In such a case, make sure the
rotation-sensor signal level is more than 50% of the voltage range of the
unit connected to the CH6.

3-phase
power
supply

Inverter

3194

Induced voltage

ANLOG OUT
D/A OUT
EXT CONTROL

Motor

l
a
n
g

i
s
r
o
s
n
e
s

­n
o

i

t
a

t
o

R

Torque
sensor

)

l
a
n
g

i
s

n
o

i

t

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Load/
motor

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48pin（EXT.CLOCK）

Rotation-sensor signal

47pin（GND）

────────────────────────────────────────────────────

APPENDIX 9

────────────────────────────────────────────────────

The 3194 can be used for the following measurement when a rotation-sensor
signal (e.g., magnetic-pole position signal) is input.

(1) Zero-correction of phase difference

The 3194 is capable of zero-correction of the phase difference (electrical
angle) between the rotation-sensor signal and the induced voltage
fundamental wave. If this correction is made, line voltages generated when
the motor is driven by an inverter, and the line current vectors can be
evaluated by evaluating the rotation-sensor signals instead. Accurate
correction will be made even if the induced voltage is distorted, as the 3194
extracts the fundamental wave from the induced voltage using its harmonic
analysis function.

NOTE

NOTE

To ensure reproducibility, the motor must have the same rotational pulse
count as when the 3194 is used with a dividing setting of 1/1. For example,
the pulse count must be 2 pulses/rotation in the case of a 4-pole motor.

(2) Harmonic measurement of induced voltage

The 3194 is capable of harmonic measurement of the induced voltage. Using
the harmonic analysis function, the 3194 measures the rms value,
fundamental wave component, and harmonic of the induced voltage (line
voltage). In addition, using the Δ - Y conversion function, the induced
voltage may be converted to a phase voltage.

・For the phase difference (θ), the absolute accuracy is not specified. The

accuracy will be specified as a deviation, based on a comparison of one
cycle of induced voltage with one cycle of the rotation-sensor signal. In
addition, the 3194 measures the distance between the rising edge of the
rotation-sensor signal and the rising zero-crossing of the induced-voltage
fundamental wave.

・The zero-correction setting is valid for a single piece of data only. If the

frequency changes, zero-correction must be performed again.

・The zero-correction setting is cleared when power to the 3194 is turned off.

Rotation-sensor signal
(Magnetic-pole position signal)

θ

Phase difference

Fundamental wave
component of the
induced voltage

────────────────────────────────────────────────────

APPENDIX 10

────────────────────────────────────────────────────

Example of Motor Electrical-Angle Measurement (1)

When a motor is actually run by an inverter, changes in the control of the
inverter and the motor can be determined easily, without significant change
in the wiring for the induced-voltage measurement.
If zero-correction is performed on the phase difference between the rotation­sensor signal and the induced voltage during the motor induced-voltage
measurement, the relationship between the fundamental wave phases
(electrical angle) of the line voltages and phase currents can be easily seen
on the vector screen, with the induced-voltage phase used as a reference. By
checking the screen, therefore, changes in the control of the inverter and the
motor as a result of fluctuations in the load can be easily determined. The
line voltages may be also expressed as phase voltages (virtual neutral) using
the Δ - Y conversion function.

3-phase
power
supply

Inverter

3194

Motor

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When the rotation­sensor signal is used
as a reference, if
zero-correction is
performed on the
rotation-sensor signal
phase and the
induced-voltage
phase, the induced­voltage phase will
coincide with the
reference.

Load/
motor

e
u

l
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q

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────────────────────────────────────────────────────

APPENDIX 11

────────────────────────────────────────────────────

Example of Motor Electrical-Angle Measurement (2)

If the rotation-synchronizing signal is not a rectangular wave, use the
alternative method.

■ Procedure (requiring a 2-channel input unit)

1. Input the rotation-synchronizing signal to channel 1. The rotation­synchronizing signal is a TTL-level signal.

2. Input the line voltage or current to be analyzed to channel 2.

3. Set the PLL source to "U1."

Ｒ

Ｓ

Motor

インバータ

Inverter

ch2

モータ

Ｔ

ch1

Rotation-synchronizing signal

3194

Use the following method to measure the electrical angle while measuring
the power of a 3-phase line.

■ Procedure (requiring a 5-channel input unit)

1. Connect the three phases to channels 1, 2, and 3, respectively.

2. Connect the rotation-synchronizing signal to channel 4, and the line to be
analyzed to channel 5.

3. Set the harmonic-analysis channels to channels 4 and 5.

4. Set the PLL source to "U4."

Ｒ

Ｓ

モータ

Inverter

インバータ

Motor

Ｔ

Rotation-synchronizing

ch1/2/3 ch4 ch5

signal

3194

NOTE

────────────────────────────────────────────────────

Harmonic analysis will not be performed on channels 1, 2, or 3.

APPENDIX 12

────────────────────────────────────────────────────

With this method, the rotation-synchronizing signal also undergoes FFT
analysis. In addition, using the fundamental wave as a reference, the absolute
phase of the signal of the line to be analyzed is measured. If the duty ratio
of the rotation-synchronizing signal is 50%, when the zero-crossing of the
rotation-synchronizing signal coincides with the zero-crossing of the line to
be analyzed, the phase difference will be 0 deg. If the duty ratio is other than
50%, even if the phase difference is indicated as 0 deg., the zero-crossing
points will not coincide.

External synchronizing signal

Signal waveform

Conditions for 0-degree phase difference with a duty ratio of 50%

External synchronizing signal

Signal waveform

Conditions for 0-degree phase difference with a duty ratio of 50%

50%

50%

Center

────────────────────────────────────────────────────

HIOKI 9605-01 HARMONIC MEASUREMENTS UNIT

Instruction Manual

Publication date: February 2005 Revised edition 1

Edited and published by HIOKI E.E. CORPORATION

Technical Support Section

All inquiries to International Sales and Marketing Department

81 Koizumi, Ueda, Nagano, 386-1192, Japan

TEL: [phone] / FAX: [phone]

E-mail: [e-mail]

URL http://www.hioki.co.jp/

Printed in Japan 9605B981-01

All reasonable care has been taken in the production of this manual, but if you

find any points which are unclear or in error, please contact your supplier or
the International Sales and Marketing Department at HIOKI headquarters.

In the interests of product development, the contents of this manual are subject

to revision without prior notice.

Unauthorized reproduction or copying of this manual is prohibited.

HEAD OFFICE

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