NoiseKen INS-AX2 Series User manual

INSTRUCTIONMANUAL
IMPULSENOISESIMULATOR
MODEL INS-AX2 Series
NOISE LABORATORY CO., LTD.
1.12Edition
AEB00331-00E-0

NOTICE
The contents of this booklet are subject to change without prior notice.
No part of this booklet may be reproduced or transferred, in any form, for any purpose,
without the permission of Noise Laboratory Co., Ltd.
The contents of this booklet have been thoroughly checked. However, if a doubtful
point, an error in writing or a missing is found, please contact us.
Noise Laboratory Co., Ltd. shall have no liability for any trouble resulting from the
misuse or improper handling of this product regardless of the contents of this booklet
or arising from the repair or remodeling of this product by a third party other than
Noise Laboratory Co., Ltd. or its authorized person.
Noise Laboratory Co., Ltd. shall have no liability for any trouble resulting from the
remodeling or modification of this product.
In no event shall Noise Laboratory Co., Ltd. be liable for any results arising from the
use of this product.

1
1 IMPORTANT SAFETY PRECAUTIONS
The following is very important matters in order to safely handle this product (called unit
hereafter). Read carefully and strictly observe them.
1. Any person who has an implanted pacemaker in the body should not operate this
unit. Furthermore, such a person should not enter the test area while this unit is
operating.
2. Use of this unit in an explosive area such as "No fire" area etc. is prohibited. If
used in such an area, it is liable to cause combustion or ignition due to
discharge.
3. Before connecting the equipment under test (called EUT hereafter), check to see
that the unit is in the STOP conditions and that the EUT supply is interrupted
(EUT LINE INPUT), otherwise supply power voltage or the generated pulse
voltage may cause an electric shock hazard.
4. AC power supply connection to EUT LINE INPUT of the simulator shall be always
done through an insulating transformer. Connection without using an insulating
transformer may cause an electric shock and may also actuate the earth leakage
breaker of the power supply due to leak current.
5. When connecting each cable and changing the connection setting, etc., turn off
POWR switch of the simulator and interrupt power to EUT LINE INPUT
beforehand. Generated pulses and power supply may cause an electric shock.
Change connection after a lapse of more than 5 seconds with power turned off.
6. Fully put in each coaxial connector and make sure connection by rotating it
clockwise until a "click" is heard.
7. Be careful of an electric shock caused by generated pulse and power supply to
EUT.
8. The simulator is not provided with a protective device against the overcurrent
and overvoltage of EUT LINE.Fit a protective device such as fuse, circuit breaker
or circuit protector that meets the specified rating to power supply to EUT.
9. A number of safety recommendations are listed in "BASIC SAFETY
PRECAUTIONS " mentioned later. Be sure to read them before setting a test
environment, connection and starting a test.

2
Preface
This manual contains important information pertaining to the operation and maintenance of
your Impulse Noise Simulator Model INS-AX2 Series (hereinafter called INS-AX2).
In order to obtain the highest performance from INS-AX2, it is recommended that
the contents of this manual be thoroughly understood beforehand.
Meanings of model name
ＩＮＳ－ＡＸ２－※ ※※※※
Others: T: Triangle Waveform
H: High Voltage of EUT capacity
Name of Series Maximum pulse voltage Maximum EUT current capacity
2：2kV 20：20A
4：4kV 50：50A
This instruction manual is to be commonly used among all INX-AX models.
Functions may be restricted according to models.
Features of each model are as follows.
Model name Maximum pulse
voltage
EUT power capacity Triangle
Waveform
INS-AX2-220 2kV Single-phase AC240V/DC65V 20A
INS-AX2-220T 2kV Single-phase AC240V/DC65V 20A √
INS-AX2-420 4kV Single-phase AC240V/DC65V 20A
INS-AX2-420T 4kV Single-phase AC240V/DC65V 20A √
INS-AX2-250 2kV 3-phase 4-wire AC300V/DC65V 50A
INS-AX2-250T 2kV 3-phase 4-wire AC300V/DC65V 50A √
INS-AX2-250H 2kV 3-phase 4-wire AC500V/DC250V 50A
INS-AX2-250TH 2kV 3-phase 4-wire AC500V/DC250V 50A √
INS-AX2-450 4kV 3-phase 4-wire AC300V/DC65V 50A
INS-AX2-450T 4kV 3-phase 4-wire AC300V/DC65V 50A √
INS-AX2-450H 4kV 3-phase 4-wire AC500V/DC250V 50A
INS-AX2-450TH 4kV 3-phase 4-wire AC500V/DC250V 50A √
(Abbreviated model names shown in this manual: 220, 420, 250, 450…)

3
2 APPLICATION FORM FOR INSTRUCTION MANUAL
We place an order for an instruction manual.
Model:
SerialNo.:
Applicant:
Company name:
Address:
Department:
Personincharge:
TelNo.:
FaxNo.
Cut off this page “APPLICATION FORM FOR
INSTRUCTION MANUAL” from this volume and keep it
for future use with care.
When an INSTRUCTION MANUAL is required, fill in the above
Application Form and mail or fax it to the following sales department
of our company.
To: Noise Laboratory Co., Ltd.
1-4-4 Chiyoda Chuo-ku Sagamihara City,
Kanagawa Pref., 252-0237 Japan
Tel: [phone] Fax: [phone]
Cut
line

4
Memorandum

5
3 BASIC SAFETY PRECAUTIONS
3.1 Warning signs and their meanings
This sign is shown at areas where high voltages potentially hazardous
to human body are present.
Sign for handling caution
In order to protect the human body and equipment, refer to this
instruction manual.
Sign for protective earth terminal.
Means a warning.
If such a danger is not avoided, a potential danger
which may result in a death or serious injury will
be caused.
Means a caution.
If such a danger is not avoided, a potential
danger which may result in a minor or medium
degree of injury will be caused.
Means a warning.
The mentioned warning label is
marked on the simulator, and
shows the danger of an electric
shock.

6
3.2 Basic Safety Precautions
1. Any person who has an implanted pacemaker or other electric medical device in
the body should not operate the simulator. Furthermore, such a person should
not enter the test area while the simulator is operating. 【Precautions for human
body and operation】
2. Mishandling and careless operation of the simulator will result in a fatal injury.
【Precautions for human body, operation, environments and connection】
3. Use of the simulator in an explosive are such as "No fire" area etc. is prohibited.
If it is used in such an area, it may cause combustion or ignition due to electric
discharge.【Precautions for human body and environments】
4. Before connecting the simulator and EUT power supply, turn off POWER switch
of the simulator and interrupt power to EUT. The generated pulse voltage and
supply power voltage to EUT may cause an electric shock.【Precautions for
human body and connection】
5. Supply power to EUT LINE INPUT of the simulator through an insulating
transformer.
When power is supplied without using an insulating transformer, EUT power
supply voltage is injected to the outside of the coaxial connector by settings.
Therefore, if the user touches it, he may receive an electric shock. In addition, if
the user touches the conductive part of the coaxial connector connected to any
grounded subject, EUT power circuit breaker may actuate by leak current
according to circumstances.【Precautions for human body and connection】
6. When connecting cables, place the simulator in the STOP conditions for more
than 5 seconds and interrupt the EUT power supply beforehand; The generated
high voltage may cause an electric shock. Otherwise, the simulator may be
damaged.【Precautions for human body and connection】
7. The simulator is not provided with a protective device against the overcurrent
and overvoltage of EUT LINE.
EUT power supply shall be provided with protective devices, such as fuse,
breaker and circuit protector that meet the rated capacity of EUT to be used.
8. When using a coaxial connector, fully insert it and make sure connection by
rotating it clockwise until a "click" is heard. Insufficient connection may lead to
unwanted discharges inside the coaxial connectors.【Precautions for human
body and connection】
9. Securely ground the power soppy for driving the simulator by using a 3-core AC
cable with a grounding conductor which is compatible with power-supply
voltage and current for driving the simulator. When grounding from the power
supply is not possible, ground it using the protective earth terminal from the
rear panel.【Precautions for human body and connection】

7
10. Be extremely careful of an electric shock due to the generated pulses and power
supply to EUT.【Precautions for human body and connection】
11. High voltages exist inside the simulator. Never open the covers.
【Precautions for human body】
12. NOISE LABORATORY and its sales agents shall have no liability against any
accident resulting in injury or death, any damage to equipment or any resultant
damage thereof, which is caused by abuse or careless handling of the simulator.
【Precautions for human body, operation, environments and connection】
13. The protective earth terminals for the simulator are the AC inlet and the
protective earth terminal at the side of the AC inlet. PE of EUT line is provided
exclusive for EUT line and it is independent from the protective earth of the
simulator. The SG terminal provided on the front panel of the simulator
functions as a reference ground for noise testing, and it is floated from the
protective earth and FG of the simulator.
When conducting tests, make connections according to "ENVIRONMENTS,
INSTALLATION AND TEST METHOD" mentioned in this manual.【Precautions for
connection】
14. The test rig used in conjunction with the simulator should be insulated against a
minimum voltage of 8kV (when the built-in 50Ωterminator disconnected from
the test circuit).【Precaution for environments】
15. During EUT test using the simulator, high level of electromagnetic radiation may
be generated from EUT and its connecting cable, and thus causing interference
with nearby electronic equipment and radio communication equipment.
When conducting a test, the user may have to take measures such as a faraday
cage, shielded room, shielded cable and so on to eliminate these harmful
influences.【Precaution for environments】
16. Be sure to connect the ground plane for noise testing to the safety ground.
【Precautions for connection and safety】
17. To ensure safety in operation, use the accessories (use power cord and LINE
input cable with relevant safety agency approval) and optional equipment
supplied by our company.【Precautions for handling and safety】
18. Do not use nor keep the simulator in a hot or cold environment.(Operating
temperature: 15℃～35℃/Operating humidity range: 25～75%)【Precaution for
environments】
19. If condensation is found, fully dry the simulator before operating it.【Precaution
for environments】
20. Do not drop the simulator or do not give strong shock to the simulator.
【Precautions for handling】
21. When installing the simulator, do not block the vent. 【Precautions for
installation and connection】
22. Do not supply voltage exceeding the rated voltage range.【Precautions for
installation and connection】

8
23. Only a service engineer authorized by our company should perform
repair, maintenance work and internal adjustment, except when
changing the mercury relay on the user side.【Precautions for handling
and safety】
24. Do not wipe off the body of the simulator with thinner, etc. When the
simulator is dirty, soak a cloth in a detergent, wring it and wipe the
simulator with this cloth.【Precautions for handling】
25. The simulator is a weighty article. When installing or moving it, two or
more persons should work while taking safety measures.【Precautions
for handling and safety】
26. The simulator employs component parts containing mercury. When
scrapping the simulator, dispose of the component following the local
regulations.【Precautions for human body and environments】
27. As mercury is used in the mercury relay unit, it falls under the category
of industrial waste and its disposal is contracted to a waste handler.
Therefore, it is not permitted that the user disposes of it as ordinary
waste.When disposing of the used mercury relay unit, perform waste
treatment in accordance with the regulations of each country or return
it to Noise Laboratory or its distributor/agent nearest to you.
【Precautions for human body and environments】
28. The coaxial connectors used for the simulator is of NoiseKen original
design. Use of other type of connectors may cause electric shock
hazards or malfunctions of the simulator.【Precautions for handling
and safety】
29. As the simulator employs a mercury relay, it shall be positioned
horizontally only.【Precautions for handling】

9
3.3 When warning label is missing:
1. When warning label is lost, or peeled off or dirty, put up a new one for extra safety.
2. When warning label is lost, contact to Noise Laboratory or its distributor/agent
nearest to you.

10
4 TABLE OF CONTENTS
1IMPORTANT SAFETY PRECAUTIONS .............................................................. 1
2APPLICATION FORM FOR INSTRUCTION MANUAL............................................ 3
3BASIC SAFETY PRECAUTIONS ...................................................................... 5
3.1 WARNING SIGNS AND THEIR MEANINGS ................................................................. 5
3.2 BASIC SAFETY PRECAUTIONS ............................................................................. 6
3.3 WHEN WARNING LABEL IS MISSING:...................................................................... 9
4TABLE OF CONTENTS ................................................................................ 10
5GENERAL DESCRIPTION............................................................................. 13
5.1 FEATURES ................................................................................................... 13
5.2 SQUARE WAVE PULSE GENERATION PRINCIPLE.................................................... 14
5.3 RELATION BETWEEN VALUE OF TERMINATING RESISTOR,AND CHARACTERISTIC
IMPEDANCE OF COAXIAL CABLE ................................................................................. 16
5.4 SETTING RANGE FOR TEST CONDITIONS ............................................................. 17
6STANDARD ACCESSORIES.......................................................................... 18
7CONTROLS AND DISPLAY FUNCTIONS ......................................................... 19
7.1 INS-AX20-220/420 FRONT PANEL .................................................................... 19
7.2 FRONT PANEL CONTROLS AND DISPLAYS ............................................................. 20
7.3 REAR PANEL ................................................................................................. 22
8OPERATION .............................................................................................. 23
8.1 TURNING ON AND OFF POWER SUPPLY .............................................................. 23
8.2 SETTING THE PULSE WIDTH AND TRIANGLE PULSE ................................................. 23
8.3 SETTING THE PULSE VOLTAGE AND POLARITY ....................................................... 24
8.4 SETTING THE PULSE INJECTION LINE .................................................................. 24
8.5 CONNECTION OF EUT LINE INPUT................................................................... 26
8.6 MOUNTING AND DISMOUNTING OF OUTLET PANEL AND REMOVAL ............................. 27
8.7 CONNECTION OF EUT..................................................................................... 27
8.8 CONNECTION OF SG ...................................................................................... 27
8.9 OPERATION IN PHASE (LINE SYNCHRONIZATION)MODE ....................................... 28
8.10 OPERATION IN VARIABLE MODE ................................................................... 30
8.11 OPERATION IN 1SHOT MODE ....................................................................... 31
8.12 STOPPING THE SIMULATOR ........................................................................... 32
8.13 TYPE OF ERRORS AND COUNTERMEASURES...................................................... 32
9OPERATION FOR WIDE APPLICATIONS......................................................... 34
9.1 VOLTAGE RAMP SETTING .............................................................................. 34
9.2 VOLTAGE RAMP TEST RUN ............................................................................ 36
9.3 VARIABLE RAMP SETTING ............................................................................. 37
9.4 VARIABLE RAMP TEST RUN ........................................................................... 39
9.5 PHASE RAMP SETTING .................................................................................. 40
9.6 PHASE RAMP TEST RUN ................................................................................ 42
9.7 COMBINED RAMP MODE ................................................................................... 44
9.8 COMBINED RAMP TEST RUN............................................................................. 44
9.9 PROGRAM MODE SETTING ............................................................................... 45
9.10 PROGRAM TEST RUN ................................................................................... 48
9.11 SETTING AND REFERENCE OF TERMINATION RESISTANCE .................................... 49
9.11.1 How to set termination resistance value .................................................................................................................50
9.11.2 Maximum pulse voltage at each termination resistance.......................................................................................51
9.12 HOW TO USE EUT FAIL INPUT..................................................................... 52

11
10 ENVIORONMENTS, INSTALLATION AND TEST METHOD ................................53
10.1 TEST PARAMETERS...................................................................................... 53
10.2 NOISE COUPLING MODE AND METHOD .............................................................. 53
10.3 TEST ENVIRONMENTS .................................................................................. 54
10.4 TEST SET-UP ............................................................................................. 55
10.4.1 Line to ground mode for AC operated equipment (Common Mode) ................................................................. 55
10.4.2 Line to line mode (normal mode) for AC operated equipment........................................................................... 56
10.4.3 Line to ground mode (common mode) for DC operated equipment.................................................................. 57
10.4.4 Line to line mode (normal mode) for DC operated equipment ............................................................................ 58
10.4.5 Capacitive coupling test for signal lines (by using CA-805B coupling adapter: Option).................................... 59
10.4.6 Test by using a radiation probe (optional accessory) ............................................................................................ 60
11 SPECIFICATIONS AND FUNCTIONS ............................................................61
12 HOW TO CHECK THE WAVEFORM ..............................................................63
12.1 INSTRUMENT REQUIRED................................................................................ 63
12.2 OSCILLOSCOPE SETTINGS............................................................................. 63
12.3 SIMULATOR SETTINGS .................................................................................. 63
12.4 CHECKING THE WAVEFORM ........................................................................... 63
13 CORRECTING PHASE ANGLE ....................................................................65
13.1 WORDING IN THIS CHAPTER .......................................................................... 65
13.2 PREPARATION AND SETTING.......................................................................... 65
13.3 EXPLANATION OF PHASE-ANGLE CORRECTION SETTING ...................................... 66
13.4 SIMPLIFIED CHART OF PHASE-ANGLE CORRECTION SETTING................................ 72
14 RELAY UNIT ............................................................................................73
14.1 2KVRELAY UNIT AND 4KVRELAY UNIT ............................................................. 73
14.2 HOW TO REPLACE THE RELAY UNIT ................................................................. 73
15 WARRANTY.............................................................................................75
16 MAINTENANCE ........................................................................................77
17 NOISE LABORATORY SUPPORT NETWORK.................................................78

12
Memorandum

13
5 GENERAL DESCRIPTION
The simulator generates fast rise time square wave pulses and couples them to the power supply
lines of the EUT for noise testing purpose.
5.1 Features
Generates high voltage square pulses of less than 1ns rise time up to 4kV (INS-AX2
420
(
*
)
/450/450
(
*
)
*) or up to 2kV (INS-AX2 220
(
*
)
/250/250
(
*
)
*).
Generates high voltage triangle pulses of 1μs pulse width with less than 40ns rise
time, up to 4kV (INS-AX2 420T/450T/450TH)
Selectable pulse widths from among 8 waves: 10ns, 50ns, 100ns, 200ns, 400ns,
500ns, 800ns and 1000ns.
Square wave high-voltage pulse can be injected to EUT power line. The injection
method between normal mode and common mode can be automatically switched.
EUT power-capacity for testing: Single phase AC240V 20A and DC65V 20A
420
(
*
)
/450/450
(
*
)
*, 3-phase 4 wire AC300V 50A/DC65V 50A (250
(
*
)
/450
(
*
)
), 3-phase 4
wire AC500V 50A/DC250V 50A (250
(
*
)
*/450
(
*
)
*).
Generates high voltage pulses synchronized with EUT power line frequency.
Synchronization phase angle can be controlled from 0 to 360 degrees.
Program setting makes it possible to perform a test by changing voltage, injection
phase angle, repetition period, etc. automatically.
50Ωterminating resistor is incorporated.
Pulse generating circuit is floated.
Various outlet panels are optionally available.
Optional outlet panels make it possible to perform easy noise tests for better
reproducibility. Various receptacle types are available.
Radiation probe and coupling clamp are optionally available.

14
5.2 Square Wave Pulse Generation Principle
The main components of the pulse generator circuitry of this simulator are HV power
supply, coaxial cables, charging resistor, mercury relay and 50Ωterminating resistor. The
coaxial cables form a distributed constant circuit consisting of the inductance of the inner
conductor and capacitance of the inner conductor to the shield. When a 50Ωresistor
terminates this line, the pulse width is approximately 10ns per meter. Pulse widths vary
depending on the delay time of the coaxial line (length of the cable). Pulse waveforms
and voltages depend on the relation between 50Ωterminating resistor resistance and
coaxial cable characteristic impedance. The HV power supply charges up the
capacitance component of the coaxial line through the charging resistor when the
mercury relay contact opens. The stored energy is discharged when the mercury relay
contact closes, generating a HV pulse at both ends of the 50Ωterminating resistor. The
injection unit couples this pulse through a capacitor to the power line. Also a decoupling
circuit consisting of a coil and a capacitor makes the impedance of the power supply side
higher than that of the EUT side so as to supply high voltage pulses to the EUT side
efficiently and reduce the leak of high voltage pulses to the power supply side.

15
INS-AX2-250/250
(
*
)
*/450/450
(
*
)
*
HV：HV power supply R1：Charging resistor CC：
Coaxial cable
RL2：Mercury relay R2：Terminating resistor(60Ω) R3：Terminating resistor(500Ω)
C1：Coupling capacitor RL1：Contactor U3：
Triangular wave generating
part (***)
R4：Terminating resistor for options (60Ω) L1/C2/R5, L2/C3/R6, L3/C4/R7, L4/C5/R8：Filter
RL10：ON when the incorporated terminating resistor(60Ω) is connected.
RL11：ON when outputting from PULSE OUT coaxial connector
RL12：ON when INJECTION phase is set.
(***) u3：only for T models (which can generate triangular waves).
Since 60Ωand 500Ωare parallel aas terminating resistors when line injection is selected, the
composite resistance value is 53.5Ω, which is same as the characteristic impedance of the coaxial
cables.

16
5.3 Relation between Value of Terminating Resistor, and Characteristic
Impedance of Coaxial Cable
Pulse waveforms shown in the following figure appear at both ends of the terminating
resistor. To generate square wave pulses, this simulator adopts a 53.5Ω, equal value to
the characteristic impedance of the coaxial cables as the resistance of the terminating
resistor.
Pulse output voltage can be obtained by equation 1.
Vp＝R2÷(Z0＋R2)×E･･･････････(equation 1)
Vp ：Pulse output voltage
E ：Output voltage of HV power supply
Z0 ：Characteristic impedance of coaxial cables (53.5Ω)
R2 ：Built-in terminating register (53.5Ω)
EEE
tt
R2=Zo R2=3Zo R2=1/3Zo
1/2E
3/4E
3/8E
3/16E 1/4E
1/8E
1/16E
t

17
5.4 Setting Range for Test Conditions
This simulator is capable of conducting high-voltage pulse tests shown in the following
table:
Table 1. Setting range for pulse test conditions
Parameters Specifications
Output voltage 0.01kV to 2kV (220
(
*
)
/250/250
(
*
)
*) at 0.01kV step
0.01kV to 4kV (420
(
*
)
/450/450
(
*
)
*) at 0.01kV step
Ramp, program setting possible
Polarity Positive/Negative
Program setting possible
Pulse width 10, 50, 100, 200, 400, 500, 800, 1000ns and
Triangle (220T/420T/250T/250TH/450T/450TH)
Program setting possible
Line synchronous injection phase
angle 0-360DEG At 1DEG step
Ramp, program setting possible
Repetition period in VARIABLE mode 10-999ms (220
(
*
)
/250/250
(
*
)
*) at 1ms step
16-999ms (420
(
*
)
/450/450
(
*
)
*) at 1ms step
Ramp, program setting possible
Injection phase L1, L2, PE phase (220
(
*
)
/420
(
*
)
)
L1, L2, L3, N phase (250/250
(
*
)
*/450/450
(
*
)
*)
PULSE OUT coaxial connector output
Program setting possible
Return phase L1, L2, PE phase, and SG (220
(
*
)
/420
(
*
)
)
L1, L2, L3, N phase, and SG
(250/250
(
*
)
*/450/450
(
*
)
*)
Program setting possible
1SHOT Manual one shot pulse output.
PAUSE Pause of pulse out
Pushing key for
long time
Termination resistance change mode.
Correct voltage set value is displayed by setting termination
resistance.
Display
“53.5” 53.5Ωat internal termination resistance connection.
“Op” OPEN
“50.0” 50.0Ωat external termination resistance connection
“60.0”
*1
Can be set up only when outputting from PULSE OUT coaxial
connector. *1
Set it, when terminating at TERMINATE coaxial connector.
EUT LINE ON / OFF Turning ON/OFF at contactor.
Number of program settings in the
simulator
Ordinary run and memory can be performed at
No.1-20.
EUT LINE ON/OFF of each program
setting Turning ON/OFF at contactor.
Injection time in each program mode 1-9999s 1s step and manual change by
STOP/START button ("ooo" displayed).
Interval time in each program mode
1-999s 1s step and manual change ("ooo"
displayed) and continuous change ("Cnt" displayed)
by STOP/START button.

18
6 STANDARD ACCESSORIES
This product comes with the following standard accessories:
A-1 (for 220
(
*
)
/420
(
*
)
) *1 A-2 (for 250/250T/450/450T) *1
A-3 (for 250H/250TH/450H/450TH) *1
B C D
List of standard accessories
Description Quantity Remarks
A-1 Outlet panel (18-00067A) 1 AC240V/DC65V20A max
(Single phase terminal block type) (220
(
*
)
/420
(
*
)
)
A-2 Outlet panel (18-00068A) 1 AC300V/DC65V50A max
(3-phase terminal block type) (250/250T/450/450T)
A-3 Outlet panel (18-00074A) 1 AC500V/DC250V50A max
(3-phase terminal block type) (250H/250TH/450H
/450TH)
B Power cable 1
C Instructions manual for this simulator
(This book)
1
D Bag 1
*1 Either A-1, A-2, or A3 is mounted on this simulator at shipment.