KEYENCE SJ-M400 User Manual

Before using this Compact Static Eliminator, be sure to thoroughly read this Instruction Manual. After you are finished with this Instruction Manual, be sure to store it in a safe place for quick reference.

High-performance Micro Static Eliminator

Instruction Manual

SJ-MSJ-M400

96M10401

Preface

This document describes handling, method of operation and precautions when using the Compact Spot-type Static Eliminator SJ-M 400 Series. Before youstart to use the SJ-M 400 Series, be sure to thoroughly read this document in order to make full use and safely use its functions. Store this document in asafe place so that you can ret

rieve it whenever necessary.

■ Symbols

This manual uses the following symbols to alert you to important information. Be sure to read this information.

Failure to follow these instructions may lead to death or serious injury.

Failure to follow these instructions may lead to injury.

Failure to follow these instructions may lead to product damage (product malfunction, etc.).

Provides additional information on precautions and restrictions that must be followed in operation.

Provides additional information on proper operation.

Indicatesuseful information or information that aidsunderstanding of text descriptions.

Indicatesa reference item or page to be referred to in this manual or aseparate manual.

DANGER

WARNING

CAUTION

Important

Note

Tip

Safety Precautions

■ General Precautions

• At start up and during operation, be sure to monitor the functions and performance of the SJ-M Series.

• We recommend that you take substantial safety measures to avoid any damage in the event that a problem occurs.

• Do not modify the SJ-M Serie s or use it in any way other than described in the specifications. The functions and performance of products used or modified in this way cannot be assured.

• When the SJ-M Series is used in combination with other instruments, functions and performance may be degraded, depending on operating conditions and the surrounding environment. Use the SJ-M after fully studying the effect of combined use with other instruments.

• Do not use the SJ-M Series for the purpose of protecting the human body.

■ SJ-M Series Handling Precautions

The SJ-M Series isa high-voltage product that is not designed in an explosion-proof structure. Pay attention to the following when using the SJ-M Series.

•

To prevent electric shock and to ensure accurate static elimination, be sure to connect a Class D ground (maximum resistance of 100 Ohms).

•

The power cable supplied with the exclusive power supply (SJ-U2) is a 125 V rated power cable. When connecting a power supply that exceeds this power rating to the SJ-M Series, the user must prepare a power cable having adequate voltage rating. If a power cable that does not meet the voltage rating is used, this may cause electric shock, fire or malfunction.

•

Do not use this product in locations where there is the risk of ignition or explosion from flammable solvents or dirt and dust.

•

High voltage is applied to this product. Prevent it from being splashed with water, oil, or flammable solvents. Failure to do so may cause insulation breakdown, which will result in electric shock or malfunction.

•

Do not bring your fingers, tools, wire or other metallic objects near this product. Doing so may cause electric shock or malfunction.

•

If the SJ-M Series is used in an airtight location, the generated ozone may be harmful. Be sure to ventilate the area when using the SJ-M Series.

•

Do not use this product in locations where sudden changes in temperature or condensation are likely to occur.

•

Do not operate this product with wet hands. Doing so may cause electric shock.

•

Before starting inspection or maintenance, be sure to turn the power OFF. Failure to do so might result in electric shock or malfunction.

•

During maintenance, do not directly touch the electrode probe. Doing so may cause personal injury.

•

If any malfunction is observed in this product, immediately turn it OFF, and contact your nearest agent. You should never repair this product yourself. Doing so may cause electric shock or malfunction.

•

Take soundproofing measuressuch as wearing earplugs when using the SJ-M Series.

CAUTION

WARNING

• Do not to uch the electrode probe with a tool or other hard object. Damage to

the electrode probe will prevent static elimination performance from being fully demonstrated, and cause accidents or malfunction.

• When this product is used for a long period of time, the electrode probe become dirty due to the adhesion of dust and dirt. If the ion level alarm indicator or condition alarm indicator lights, clean the electrode probe. If the product is used with the electrode probe in a dirty or dusty state, the static elimination performance can no longer be fully demonstrated, resulting in accidents or malfunction. We recommend periodically cleaning the electrode probe (as a guideline, once every two weeks in a regular operating environment though this depends on the installation conditions).

• Do not drop or subject this product to shock. Doing so might result in accident or malfunction.

• Use this product for static elimination only. Do not use it for other purposes.

• When installing the SJ-M Ser ies, observe the minimum bending radius of all

provided cables. Also,

do not install

the SJ-M with the cab

les deformed by

staples or other objects. Doing so might cause the SJ-M to malfunction.

■ Power Supply Precautions

• Use a DC power supply with rated 24 V output.

• Noise applied to the power supply may cause this product to malfunction. If

this happens, install an insulated transforme r.

• When using a switching regulator, be sure to connect a Class D ground to the Frame Ground terminal.

■ Grounding Precautions

• To ensure safety and appropriate static elimination, be sure to ground this product.

• Be sure to connect a Class D ground (maximum resistance of 100 Ohms).

■ Air Purge Function Precautions

• Be sure to use an air pressure of 0.7 MPa or less.

• Be sure to supply clean or dry air of temperature –20°C or more through a

filter of mesh size about 0.01μm. Moisture or oil contained in the air or nitrogen may cause discharge inside the Static Elimination Head, which may result in accidents or malfunction.

CAUTION

■ SJ-M Series Warning label

Avoid installing the SJ-M Series in the following locations as this may cause accidents.

• Locations directly subject to vibration and shock

• Locations subject to ambient temperature outside of the 0°C to +40°C range

• Locations subject to ambient humidity outside of the 35 to 65%RH range

(condensation not allowed)

• Locations subject to sudden changes in temperature

• Locations subject directly to blasts from air conditioners

• Locations subject to volatile or flammable substance, solvents or corrosive

gases

• Locations subject to large amounts of dirt, and dust, salt, iron and oil smoke

• Locations that may be spl

ash

ed with water, oil or chemical mist

• Locations where strong magnetic and electrical fields are generated

Note

•

Be sure to read the WARNINGS and CAUTIONS described in each of the items in this Instruction Manual.

•

This Static Eliminator has a built-in EEPROM. Do not turn the Static Eliminator OFF during the setup.

20 mm or more

10 mm or more

Precautions on Regulations and Standards

■ CE Marking

Keyence Corporation has confirmed that this product complies with the essential requirements of the applicable EC Directive, based on the following specifications. Be sure to consider the following specifications when using this product in the Member State of European Union.

● EMC Directive(2004/108/EC)

• Applicable standard EMI: EN61326-1 (evaluated according to EN55011 Group 1, Class A)

EMS: EN61326-1

•Be sure to provide a ground when installing the SJ-M.

•The length of cable (power lead and I/O leads) must be less than or equal to 30m.

•Attach a one-loop ferrite core onto the High-voltage Cable Unit and pass the connector cable once

through the core.

•The following ferrite core is recommended:

SFC-10 made by KITAGAWA

INDUSTRIES CO,LTD.

Remarks: These specifications do not give any

gua

rantee that the end-product with this product incorporated complies with the essential requirements of EMC Directive. The manufacturer of the end-product is solely responsible for the compliance on the end-product itself according to EMC Directive.

● Low-Voltage Directive (2006/95/EC)

• Applicable standard: EN61010-1

•Overvoltage categor yI

•Use this product under pollution degree 2.

•Use the power supply for the SJ-M Series, that satisfies the requirements of the Limited Power

Source specifications stipulated in EN60950-1 and cer ti fied by European third-party certification

organization, or a Keyence Corporation AC adapter (SJ-U2). The specifications of the AC adapter

(SJ-U2) are as follows

When connecting to an SJ-U2, be sure to use a power cable compliant with European standards.

Applicable standard: EN60950-1

Overvoltage categor yII

Pollution degree 2

•Be sure to provide a ground when installing the SJ-M Series.

1-1 Features of the SJ-M Series

This section describes an outline of the functions, the features of the SJ-M Series.

Outline of the SJ-M Series

■ Pulse AC method

The SJ-M Seriesuses a pulse AC method that generates + and – chargedair ions from asingle electrode probe. This system ensuresa maximum ion level per unit time, which in turn high-speed static elimination. The SJ-M Series also automatically controls the level of + and – ions generated matched to

the chargedstate of the target obje

ct. This

enables high-speed and high-precision static elimination

suited to installation conditions.

■ I.C.C. (Ion Current Control) method

This control method calculates the charged level of the target object by sensing the state of ion current that arises due to the potential difference between the electrode on the Static Elimination Head and GND. Optimum static elimination matched to the state of the target object can be performed by rapidly supplying the optimum ions suited to t

he polarity and charged level of the target object.

■ Ion monitor functions

●

Charge monitor

The integrated ion monitor allows you to learn how much the target object is chargedby + or – ions. This monitor also allows you to confirm at a glance how static elimination is being performed.

● Ion level monitor

The ion level currently being generated by the Static Elimination Head is monitored atall times so that drops in the generated ion level can be diagnosed on the unit. The generated ion level is indicated by LEDs and an alarm can be output when the generated ions fall below a certain level. This allows you to monitor the influence of a dirty electrode probe in advance.

"Ion Monitor Functions" (page 8)

A WARNING label is affixed on the SJ-M Series to ensure safety. Read the description on this WARNING label to ensure correct use of the SJ-M Series.

WARNING labels in Japanese, German, French, Italian and Chinese (Simplified) are provided. Use them as necessary.

■ Installation Precautions

CAUTION

■ About Warm-up

After turning the SJ-M Series ON, leave it for about 20 minutes to allow the ion balance to stabilize.

■ Other Precautions

CAUTION

Install the tip of the SJ-M040 paying attention to the following point.

●Install the Static Elimination Head away from the wall or surrounding

objects.

Regular state

Target object in non-charged state

Elimination of ions from target object

Target object charged

Elimination of ions from target object

Target object charged

1-1

Features of the SJ-M Series

■ Alarm output functions

●

Alarm output functions

An indicator blinks and an alarm signal is output, for example, when internal circuits are damaged or abnormal discharging occurs. When an alarm signal is output, generation of ions is forcibly stopped.

● Ion level alarm output function

An indicator lights and an alarm signal is output when the level of generated ions drops due to a dirty electrode probe, for example.

● Condition alarm output function

An indicator lights and an alarm signal is output when static elimination performance is impaired.

"Alarm Output Functions" (page 8)

■ Abnormal discharge detection function

Abnormal discharge caused by condensation on the electrode probe tip or adhesion of debris is detected. When abnormal discharge is detected, ion generation is forcibly stopped to prevent trouble at an early stage.

"Abnormal Discharge Detection Function" (page 8)

■ Ion balance adjustment function

The ion balance zero point can be fine-adjusted.

"3. Adjusting ion balance" (page 7)

■ Static elimination stop function

Static elimination can be turned ON/OFF with the device still powered. This is achieved by disconnecting the trigger input and 0V terminals on the Controller Unit (I/O terminal section) or by holding down the two ion-balance adjustment keyssimultaneously for about three seconds.

"Static Elimination Stop Function" (page 8)

■ Air purge function

Dirt can be prevented from sticking to the electrode probe on the SJ-M040 by attaching a tube to the air duct and supplying clean or dry air. This also extends the static elimination range.

"Air Purge Function" (page 8)

1-2

Checking the Contents of the Package

The package contains the following components and accessories. Before you start using the SJ-M Series, make sure that the package contains everything that it issupposed to contain. A Replacement Electrode Unit and other accessories are available as options.

"List of Options" (page 12)

Before using this Compact Static Eliminator, be sure to thoroughly read this Instruction Manual.

After you are finished with this Instruction Manual, be sure to store it in a safe place for quick reference.

High-performance Micro Static Eliminator

Instruction Manual

SJ-MSJ-M400

1-3 Names and Functions of Parts

This section describes the names and functions of parts on the SJ-M Series.

Static Elimination Head

● SJ- M040

(2)

(3)

Package Contents

WARNING labels (Japanese, German, French, Italian and Chinese (Simplified)) * * Use as necessary.

Earth lead

Options

Replacement Electrode Unit for SJ-M040 (OP-84383)

Extension cable SJ-C3

Up to 3 cables can be connected.

Controller Unit (SJ-M400)Static Elimination Head (SJ-M040)

Instruction Manual

(1)

(1) Electrode probe

Ion charge is emitted from the tip of this probe.

(2) Mounting fixture

Used to attach the static elimination head.

(3) High-voltage cable

Ambient operating temperature: 0 to +40°C Minimum bending radius: 30 mm

(4) Drive unit

Operates the static elimination head and manages itssetup information.

(4)

Controller Unit (operation/display section)

Ion balance

(1)

indicator

Ion level

(2)

indicator

(3)

Ion monitor

keys

(4)

(1)

Ion balance indicator

(2)

Ion level indicator

(3)

Ion monitor

(4)

keys

(5)

Alarm indicator

(6)

Ion level alarm indicator

(7)

Condition alarm indicator

(8)

key

(9)

Operation mode selector switch

Enlarged view of display section

Lights when the charged level of the target object is displayed. Lights when the ion emission level is being displayed. Indicates the charged level of the target object. Also, indicates the ion emission level. Used for adjusting the ion balance and for selecting setting items. Lights when an alarm occurs. Lights when the ion emission level has fallen below the set value due to dirt or wear of the electrode probe. Lights when the charged level of the target object is high and static cannot be completely eliminated. Used for determining setting items and for switching the display. Used for selecting the operation mode.

Alarm indicator

(5)

(9)

Operation mode selector switch

(6)

Ion le

el alarm indicator

Condition alarm indicator

(7)

key

(8)

1-3

Names and Functions of Parts

Terminal plate cover

AC Adapter SJ-U2

For details of the AC cable, contact the KEYENCE sales office in your district.

Controller Unit (I/O terminal section)

(1)

(4) (5) (6) (7)

(2) (3)

OUT DC40V 100mA

0V (6)

Open collector output [ (2) (valve output), (1) (condition/ion level alarm output), (7) (alarm output)]

2-1 Before Installation

This section describes the static elimination performance of the SJ-M400 Series. Before you install the SJ-M400 Series, fully calculate the distance between the Static Elimination Head up to the target object and the time required for static elimination.

23 Hz Air flow rate 20 N /min (pressure 0.06 MPa)

50100150 50

100

150

200 mm

200

400

600

800 mm

0.5 sec

5.0 sec

2.0 sec

10 sec

1.0 sec

23 Hz Air flow rate 230 N /min (pressure 0.7 MPa)

50100150 50

100

150

200 mm

200

400

600

800

1000 mm

0.5 sec

2.0 sec

1.0 sec

5.0 sec

2-1

Before Installation

■ Appropriate static elimination method

Pay attention to the following points to ensure thatstatic elimination is performed appropriately.

Static elimination cannot be performed accurately at locations where the target object is touching a metallic body (grounded body).

Eliminate static from the target object at locations where it is not directly touching metallic bodied (grounded body).

Static will be eliminated from only the surface of the insulated body (board, etc.) that is facing the Static Elimination Head.

When eliminating static from both sides of a target object, install two SJ-M Series as one SJ-M Series must be i

nstalled on either side of the target object.

Note

2-1

Before Installation

■ Interference

The Static Elimination Head may not function properly if there is a conductor (grounded body) located nearby or if two or more units are used close to each other. In such an installation, refer to the figure below and maintain the indicated distance between the conductor (grounded body). If a conductor (grounded body) is located inside the distances indicated below, adjust usin

g the ion balance manual

setup.

"3. Adjusting ion balance" (page 7)

When two SJ-M Series units are used, refer to the figures below, and install the units so that the following distances are maintained between the two Static Elimination Heads.

1-3

Names and Functions of Parts

Number

(1)

(2) Valve output terminal Outputs the ON/OFF signal for the valve.

(3) Trigger input terminal

(4) Ground terminal

(5) DC power terminal 24 VDC ±10%

(6) 0V terminal 0V for power and 0V for I/O

(7) Alarm output terminal Outputs when an alarm occurs. (N.C.)

Name Function

Condition/ion level alarm output terminal

Outputs when static elimination performance is influenced by an unstable operating environment or when the ion emission level drops.

Static elimination can be turned ON/OFF by shorting this terminal with (6).

o connect a Class D ground (maximum resistance of 100

Be sure t Ohms).

■ Input circuit diagram

[ (3) (trigger input)]

INPUT (3)

0V (6)

+24V

Input a no-voltage contact (relay, etc.)

3kΩ

or NPN open collector to INPUT and 0V.

■ Output circuit diagram

Install the Static Elimination Head so that it can be easily accessed, for example, for replacement of parts and cleaning.

Installation Precautions

■ Installation site

CAUTION

Install the tip of the SJ-M040 paying attention to the following point.

●Install the Static Elimination Head away from the wall or surrounding

objects.

10 mm or more

20 mm or more

Board

Insulating matMetal

About Static Elimination Performance

The following showsa typical example where static is eliminated from an aluminum plate (20 pF) 150 x 150 mm square charged to +1000 V by the SJ-M400 Series.

■ Static elimination area

The following graphsshow the relationship between the time required for eliminating static from a target object charged between +1000 to +100 V and the distance from the charged object up to the Static Elimination Head.

No air

200 mm

23 Hz Air flow rate 60 N /min (pressure 0.18 MPa)

200 mm

100

50100150

200 mm

150

0.5 sec

5.0 sec

10 sec

50100150 50

0.5 sec

1.0 sec

2.0 sec

5.0 sec

1.0 sec

100

200

300

400

500 mm

100

200 mm

150

200

400

600

800

1000 mm

150 mm or more

70 mm or more

100 mm or more

150 mm or more

100 mm or more

2-2 Connection and Installation

This section describes how to connect and install the Static Elimination Head and Controller Unit.

Installing the SJ-M Series

Install the SJ-M Series at locations where static electricity is generated or is likely to be generated.

■ Installing the air supply tube

To use the air purge function, install anair supply tube to the air duct before securing the static elimination head.

"Air Purge Function" (page 8)

1 Remove the tube fixing screw.

Turn the tube fixing screw attached at the air duct of the static elimination head with your fingers to remove it.

2 Connect the air supply tube to the air duct.

Pass the tube through the tube fixing screw and then attach it completely to the air duct.

3 Secure the tube to the air duct with the tube fixing screw.

Tighten the tube fixing screw securely with your fingers.

Tube fixing screw

Use Nylon or Urethane tube with a 6-mm outer diameter and 4-mm inner diameter as the air supply tube.

Note

When installing the SJ-M Series, observe the minimum bending radius of all provided cables. Also, do not install the SJ-M Series with the cables deformed by staples or other objects. Doing so might cause the SJ-M Series to malfunction When bending the cable frequently with the SJ-M Series in Gun mode, make the cable's bending radius at least 5 times larger than the minimum bending radius. This value does not guarantee limitless number of bending times.

M4 screws

Mounting fixture

M4 tap

Keep the removed M3 screws and mounting fixture safe so that they don't get lost.

Note

2-2

M4 tap

Be sure to connect a Class D ground (maximum resistance of 100 Ohms).

2-2

Connection and Installation

■ Connecting the cable

Connect the Static Elimination Head connector cable to the Controller Unit. Connect this cable with the power turned OFF. When installing the Controller Unit away from the Static Elimination Head, use the optional extension cable (SJ-C3). Up to 3 cables can be connected.

■ Connecting the power supply

Connect the power supply according to either of the following methods.

24 VDC power supply

Connect a 24 VDC output power supply having sufficient power capacity margin to the power terminals (terminals (5) and (6))

"Controller Unit (I/O terminal section)" (pag e 4)

AC adapter (SJ-U2)

Connect the AC adapter to the connector on the side of the Controller Unit. The AC adapter is available as an option.

Match and connect the end of the connector cable to the inlet on the Controller Unit.

Connection and Installation

■ How to install the drive unit

Prepare mounting holes where the drive unit is being installed. Use M4 screws for installation. (Tightening torque: 1 Nm or less) The screws for installing the drive unit must be prepared separately.

Make a space of 30 mm or more around the drive unit. Otherwise, the unit

CAUTION

may be damaged.

■ Installing the Controller unit

Mount the Controller Unit on the DIN rail.

Tube fixing screw

Tube

CAUTION

• Be sure to limit the air press ure to 0.7 MPa. Exceeding this limit may cause

accidents or malfunction.

• Be sure to use clean air, dry air as the air for supplying to the Static Elimination Head. Moisture or oil contained in the air or nitrogen may cause discharge inside the Static Elimination Head, which may result in accidents or malfunction.

■ Installing the Static Elimination Head

Adjust the angle of the static elimination head to ensure proper installation. Tap M4 screw holes at appropriate locations and secure the mounting fixture with M4 screws.

CAUTION

■ Detaching the mounting fixture from the head

The mounting fixture can be detached from the static elimination head.

1 Remove the M3 screws from the static elimination head.

Unscrew the M3 screws on both sides of the static elimination head with a Phillips screwdriver to remove them.

Air duct

2-2

Connection and Installation

M3 screw

2 Detach the mounting fixture from the static elimination head.

M3 screw

Connecting Cables

When you have finished installing the Static Elimination Head, connect the ground lead, Static Elimination Head connector cable and power supply.

■ Connecting the ground lead

Open the terminal plate cover on the Controller Unit, and connect the ground lead to the GND connection terminal. Be sure to connect a Class D ground (maximum resistance of 100 Ohms).

To prevent electric shock and to ensure accurate static elimination, be sure

WARNING

to connect a Class D ground (maximum resistance of 100 Ohms).

To 24 VDC power supply

+ 9 hidden pages