KEYENCE SJ-M200 User Manual

96M10104

High-performance Micro Static Eliminator

SJ-M

Instruction 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.

Preface

This document describes handling, method of operation and precautions when using the Compact Spot-type Static Eliminator SJ-M 100/200 Series. Before you start to use the SJ-M 100/200 Series, be sure to thoroughly read this document in order to make full use and safely use its functions.

Store this document in a safe place so that you can retrieve it whenever necessary.

■ Symbols

This manual uses the following symbols to alert you to important information.

Be sure to read this information.

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

WARNING Failure to follow these instructions may lead to injury.

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

Important

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

Note

Provides additional information on proper operation.

Tip Indicates useful information or information that aids understanding of text descriptions.

Indicates a reference item or page to be referred to in this manual or a separate manual.

Safety Precautions

■ General Precautions

CAUTION • At startup 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 Series 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 is a high-voltage product that is not designed in an explosion-proof structure. Pay attention to the following when using the SJ-M Series.

WARNING • To prevent electric shock and to ensure accurate static elimination, be sure to connect a Class D earth (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.

•Protect the area around the tip of the Static Elimination Head with silicon, fluoro-resin or other highly ozone-resistant resin. Ozone that is generated may cause the metal or resin on the SJ-M Series to rust, corrode or deteriorate.

The ozone generated from this product may adversely affect the human body. For this reason, do not use the SJ-M Series in closed spaces. Be sure to use the SJ-M Series in a well-ventilated location. Also, do not bring your face close to the Static Elimination Head. The ozone generated from this product might be painful to your nose or throat.

•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.

•Supply air according to the deratings indicated in the specifications. Use without performing derating might result in electric shock or malfunction

•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.

CAUTION • Do not touch 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 Series, observe the minimum bending radius of all provided cables. Also, do not install the SJ-M with the cables deformed by staples or other objects. Doing so might cause the SJ-M to malfunction.

■Power Supply Precautions

CAUTION • 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 transformer.

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

■Grounding Precautions

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

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

■Air Purge Function Precautions

CAUTION • Be sure to use air of pressure 0.001 MPa to 0.5 MPa. Use outside of the rated air pressure range might result in accidents or malfunction.

•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.

■ SJ-M Series Warning label

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 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 (excluding the High-voltage Cable Unit)

•Locations subject to ambient temperature outside of the 0°C to +80°C range (High-voltage Cable Unit)

•Locations subject to ambient humidity outside of the 35 to 65%RH range (condensation not allowed) (excluding the High-voltage Cable Unit)

•Locations subject to ambient humidity outside of the derating range (condensation not allowed) indicated in the specifications (High-voltage Cable Unit)

•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 splashed with water, oil or chemical mist

•Locations where strong magnetic and electrical fields are generated

■About Warm-up

Note

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

1

■ Other Precautions

CAUTION • 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.

CAUTION	Install the tip of the SJ-M010/020(G) paying attention to the following point.
	●Install the Static Elimination Head away from the wall or surrounding
	objects.
	• SJ-M010/020 (G)
	10 mm or more					10 mm or more
	10 mm									10 mm
	or more
				*						or more
							Requires 10 mm or more away
				23mm*			from the air outlet

The section marked by "*" must not touch the conductor (earthed body).

The adapter nozzle must not touch the conductor (earthed body).

●Protect the area around the tip of the Static Elimination Head with silicon, fluoro-resin or other highly ozone-resistant resin. Ozone that is generated may cause the metal or resin on the SJ-M010/020(G) to rust, corrode or deteriorate.

• SJ-M010/020 (G)

200 mm or more

10 mm

200 mm

200 mm

or more

20 mm or more

or more

or more

When SJ-MS2

is used

20 mm

20 mm

20 mm

20 mm

or more

or more

or more

or more

20 mm or more

10 mm

10 mm

or more

or more

10 mm

200 mm or more

When SJ-MS1

20 mm or more

is used

or more

When SJ-ML1

200 mm

is used

or more

200 mm

20 mm

20 mm

or more

20 mm

or more

or more

or more

10 mm

10 mm

or more

or more

20 mm

or more

When SJ-MS3 is used

When SJ-ML2 is used

•Do not install the Static Elimination Head at locations where moving parts of other equipment and machinery may place stress on the cable. Doing so might cause the SJ-M010/020(G) to malfunction.

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: 61326-1(evaluated according to EN55011 Group 1, Class A)

EMS: 61326-1

•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 30 m.

•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 guarantee 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 category I

•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 certified 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 category II 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 Series uses a pulse AC method that generates + and – charged air ions from a single electrode probe. This system ensures a 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 charged state of the target object. 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 the polarity and charged level of the target object.

Elimination of

ions

Elimination of

ions

Regular state

from target object

from target object

Target object in	Target object	Target object
non-charged state	charged	charged

■ Ion monitor functions

● Charge monitor

The integrated ion monitor allows you to learn how much the target object is charged by + 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 at all 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)

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 9)

■ 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 9)

■ Ion balance adjustment function

The ion balance zero point can be fine-adjusted.

"Ion Balance Adjustment Function" (page 8)

■ Static elimination stop function

Static elimination only can be turned ON/OFF with the device still powered. This is achieved by shorting the 0V terminal with the static elimination stop input terminal on the Controller Unit (I/O terminal section) or by holding down the two ion balance adjustment keys simultaneously for about three seconds.

"Static Elimination Stop Function" (page 9)

■ Air purge function

Dirt can be prevented from sticking to the electrode probe on the SJ-M010/020 (G) 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 9)

■ High-temperature static elimination

The High Temperature mode allows static to be eliminated in hot environments. (ambient operating temperature: SJ-M010/020 (G), 0 to +80°C)

"High temperature use setting" (page 7)

2

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 is supposed to contain. A Replacement Electrode Unit and other accessories are available as options.

"Appendices - List of Options" (page 14)

Package Contents

Static Elimination Head (SJ-M010 or SJ-M020)		Controller Unit (SJ-M100 or SJ-M200)
	For SJ-M010
	For SJ-M020
SJ-M010 or SJ-M020	Mounting Fixture 1p
WARNING labels (Japanese, German, French, Italian and Chinese		Instruction Manual
(Simplified)) *
* Use as necessary.
Earth lead

Options

Replacement Electrode Unit for SJ-M020 (OP-51607)

Replacement Electrode Unit for SJ-M020G (OP-75351)

PFA tube 0.5 m (OP-75350)

Discharge Prevention Cap (OP-75354)

AC Adapter SJ-U2

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

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-M010

(3)

(2)

(1)(4)

●SJ-M020 (G)

(4)

	(3)
(1)	(5)
	(2)

(1) Electrode probe

Ion charge is emitted from the tip of this probe.

(2) Allowable mounting fixture range

The unit is fixed in place in this area with the mounting fixture (provided).

(3) High-voltage cable

Ambient operating temperature: 0 to +80°C Minimum bending radius 50 mm

(4) Air Input Unit

Supplies clean dry air.

(1) Electrode probe

Ion charge is emitted from the tip of this probe.

(2) Nozzle mounting fixture

Used for installing a special nozzle.

(3) Allowable mounting fixture range

The unit is fixed in place in this area with the mounting fixture (provided).

(4) High-voltage cable

Ambient operating temperature: 0 to +80°C Minimum bending radius 50 mm

(5) Air Input Unit

Supplies clean dry air.

1-3 Names and Functions of Parts

Controller Unit (operation/display section)

(1) Ion balance indicator

(2) Ion level		(5) Alarm indicator
indicator
		(6) Ion level alarm indicator
(3) Ion monitor
		(7) Condition alarm indicator
		(8)	key
(4)	keys
	Enlarged view of display section		Terminal plate cover
(1) Ion balance indicator		Lights when the charged level of the target object is
(2) Ion level indicator		displayed.
		Lights when the ion emission level is being displayed.
(3) Ion monitor		Indicates the charged level of the target object.
(4)		Also, indicates the ion emission level.
	keys	Used for adjusting the ion balance and for selecting setting
(5) Alarm indicator		items.
		Lights when an alarm occurs.
(6) Ion level alarm indicator		Lights when the ion emission level has fallen below the set
(7) Condition alarm indicator		value due to dirt or wear of the electrode probe.
		Lights when the charged level of the target object is high
(8)		and static cannot be completely eliminated.
	key	Used for determining setting items and for switching the
		display.

*Button function and layout are common to SJ-M100, 200

* The color of plate of M200 is different from that of M100.

1-3 Names and Functions of Parts

Controller Unit (I/O terminal section)

		(1)	(2)		(3)
		(4)	(5)	(6)	(7)
	Number	Name			Function
	(1)	Condition alarm output	Outputs when static elimination performance is influenced by excessive
		terminal	charge. (N.O.)
	(2)	Ion level alarm output	Outputs when the ion emission level drops. (N.O.)
		terminal
	(3)	Static elimination stop input Static elimination can be turned ON/OFF by shorting this terminal with
		terminal	(6).
	(4)	Ground terminal	Be sure to connect a Class D earth (maximum resistance of 100 Ohms).
	(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.)

*Common to SJ-M100, 200

■Input circuit diagram

[ (3) (static elimination stop input)]

+24V

Input a no-voltage contact (relay, etc.) or NPN open collector to INPUT and 0V.

3kΩ

INPUT( (3) )

0V( (6) )

■ Output circuit diagram

Open collector output

[ (2) (ion level alarm output), (1) (condition alarm output), (7) (alarm output)]

OUT DC40V 100mA

0V( (6) )

3

2-1 Before Installation

This section describes the static elimination performance of the SJ-M100/200 Series.

Before you install the SJ-M100/200 Series, fully calculate the distance between the Static Elimination Head up to the target object and the time required for static elimination.

About Static Elimination Performance

The following shows a typical example where static is eliminated from an aluminum plate (20 pF) 150 x

150mm square charged to +1000 V by the SJ-M100/200 Series.

■Static elimination time

The following graphs show typical examples of the relationship between static elimination time and static charged voltage.

Measurement condition: Applied voltage +1000 V

150 mm x 150 mm plate monitor (20 pF) used Installation distance 300 mm

Air purge pressure 0.5 MPa Cable length 2 m

SJ-M010/020									SJ-M020G
	1000									1000
	900									900
(V)	800								(V)	800
	700									700
level	600								level	600
Charged	500								Charged	500
	400									400
	300									300
	200									200
	100									100
	0 0	0.2		0.4	0.6		0.8	1		0 0		0.1	0.2		0.3	0.4		0.5	0.6
				Time (secs)										Time (secs)
SJ-M020+SJ-MS2									SJ-M020+SJ-MS1
	1000								1000
	900									900
(V)	800								(V)	800
	700									700
level									level
	600									600
Charged	500								Charged	500
	400									400
	300									300
	200									200
	100									100
	0	0.2	0.4	0.6	0.8	1	1.2	1.4		0	1	2	3	4	5	6	7	8	9
	0									0
				Time (secs)										Time (secs)

2-1 Before Installation

SJ-M020+SJ-MS3 (500 mm)

	1000
	900
(V)	800
	700
level	600
	500
Charged
	400
	300
	200
	100
	0	1	2	3	4	5	6	7
	0
				Time (secs)
SJ-M020+SJ-ML
	1000
	900
(V)	800
	700
level	600
	500
Charged
	400
	300
	200
	100
	0	0.2	0.4	0.6	0.8	1	1.2	1.4
	0

Time (secs)

SJ-M020+SJ-ML1

		1
		0.9
	(V)	0.8
		0.7
	level
		0.6
	Charged	0.5
		0.4

0.3

0.2

0.1

0

0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
				Time (secs)

SJ-M020+SJ-ML4 (500 mm)

	1
	0.9
(V)	0.8
	0.7
level	0.6
Charged	0.5
	0.4

0.3

0.2

0.1

0

0	1	2	3	4	5	6	7	8	9	10
				Time (secs)

SJ-M020+SJ-MS4 (500 mm)

		1000
		900
	(V)	800
		700
	level
		600
	Charged	500
		400

300

200

100

0

0

1

2

3

4

5

6

7

8

9

10

11 12

Time (secs)

SJ-M020+SJ-ML2

	1
	0.9
(V)	0.8
	0.7
level	0.6
Charged	0.5
	0.4

0.3

0.2

0.1

0

0	0.5	1	1.5	2
		Time (secs)

SJ-M020+SJ-ML3 (500 mm)

	1
	0.9
(V)	0.8
	0.7
level	0.6
Charged	0.5
	0.4

0.3

0.2

0.1

0

0	0.5	1	1.5	2	2.5	3	3.5	4	4.5	5
				Time (secs)

2-1 Before Installation

■ Static elimination area

The following graphs show 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.

Model No. SJ-M010/020 Air flow rate 20 Nl/min (pressure 0.01 MPa)

600 mm				10sec
500
400
300			5sec
200		2sec
100		1sec
			0.5sec
0				mm
	50	0
200 150 100			50 100 150 200

Model No. SJ-M020G Air flow rate 20 Nl/min (pressure 0.02 MPa)

Air flow rate 60 Nl/min														Air flow rate 250 Nl/min (pressure
(pressure 0.05 MPa)														0.5 MPa)
1000	mm													1500	mm
900											5sec			1350										2sec
800														1200
700														1050
																						1sec
600														900
500					2sec									750				0.5sec
400														600
300														450
						1sec
200				0.5sec										300
100														150
													m													mm
0														0
200 150 100		50	0			50				100 150 200				200 150 100		50	0		50		100 150 200
Air flow rate 60 Nl/min														Air flow rate 200 Nl/min (pressure
(pressure 0.12 MPa)														0.5 MPa)

				mm
				500	1.5sec
				400	1sec
				300
				200
		1000 mm		100
			3sec	000
		900		900
		800	2sec	800	0.5sec
600mm		700		700
	10sec	600		600
500		500		500
	5sec		1sec
400		400		400
300		300		300
200	2sec	200		200
	1sec
100		100	0.5sec	100
	0.5sec
			mm
0	mm	0		0	mm
200 150 100 50	0 50 100 150 200	200 150 100 50	0 50 100 150 200	-200 -150 -100 -50	0 50 100 150 200

									2-1			Before Installation
Model No. SJ-M020+SJ-MS1
Air flow rate 20 Nl/min					Air flow rate 60 Nl/min				Air flow rate 160 Nl/min (pressure
(pressure 0.03 MPa)					(pressure 0.16 MPa)				0.5 MPa)
					mm
					1000			10sec
					900		8sec
					800
									1500 mm
					700
									1400			8sec
600mm					600				1300
				10sec					1200
					500		5sec		1100			7sec
500			8sec						1000
400					400				900			5sec
									800
300					300				700
									600
					200				500
200							3sec		400			3sec
			5sec		100				300
100									200		2sec
0				mm	0			mm	100			mm
		50	0			50	0		0	50	0
200 150 100				50 100 150 200	200 150 100			50 100 150 200	400 350 300 250 200 150 100			50 100150200250300350400
Model No. SJ-M020+SJ-MS2
Air flow rate 20 Nl/min					Air flow rate 60 Nl/min				Air flow rate 250 Nl/min (pressure
(pressure 0.02 MPa)					(pressure 0.1 MPa)				0.5 MPa)
					1000mm				mm
					900		10sec		1500			3sec
									1400
					800			8sec	1300
					700				1200
	mm								1100
600					600			5sec	1000			2sec
			20sec						900
500					500
									800
400					400				700
									600
300			10sec
					300				500			1sec
200			8sec						400
					200			2sec
									300
100			5sec		100				200
0				mm	0			mm	100			mm
									0
		50	0	50 100 150 200		50	0				0
200 150 100					200 150 100			50 100 150 200	300 250 200 150 100 50			50 100150200250300

SJ-M020+SJ-MS2/ML2

Static elimination area

280mm

100mm

-50mm

14-50mm

100mm 500mm

4