Magnescale SJ700A 取扱説明書

/

Instruction Manual / Bedienungsanleitung / 使⽤说明书

Serial No. 700001 and Higher

Scale Unit / Maßstabseinheit / 直线标尺器

SJ700A Series

Read all instructions in the manual carefully before use and strictly follow them.

Keep the manual for future references.

Lesen Sie die ganze Anleitung vor dem Betrieb aufmerksam durch und folgen Sie beim Betrieb des Geräts den

Anweisungen. Bewahren Sie diese Bedienungsanleitung zum späteren Nachlesen gri bereit auf.

感谢您惠购本产品。

使⽤之前请务必认真阅读本⼿册，并且严格按照⼿册中的规定操作。将此⼿册留作以后的参考。

SJ700A-015~160

[For U.S.A. and Canada]

THIS CLASS A DIGITAL DEVICE COMPLIES WITH

PART15 OF THE FCC RULES AND THE CANADIAN

ICES-003. OPERATION IS SUBJECT TO THE

FOLLOWING TWO CONDITIONS.

(1) THIS DEVICE MAY NOT CAUSE HARMFUL

INTERFERENCE, AND

(2) T H I S D E V I C E M U S T A CCEPT ANY

INTERFERENCE RECEIVED, INCLUDING

INTERFERENCE THAT MAY CAUSE

UNDERSIGNED OPERATION.

CET APPAREIL NUMÉRIQUE DE LA CLASSE A

EST CONFORME À LA NORME NMB-003 DU

CANADA.

(E) I

SJ700A

English

Safety Precautions

Magnescale Co., Ltd. products are designed in full consideration of safety. However, improper

handling during operation or installation is dangerous and may lead to fire, electric shock or other

accidents resulting in serious injury or death. In addition, these actions may also worsen machine

performance.

Therefore, be sure to observe the following safety precautions in order to prevent these types

of accidents, and to read these “Safety Precautions” before operating, installing, maintaining,

inspecting, repairing or otherwise working on this unit.

Warning indication meanings

The following indications are used throughout this manual, and their

contents should be understood before reading the text.

Warning

Failure to observe these precautions may lead to fire, electric shock

or other accidents resulting in serious injury or death.

Caution

Failure to observe these precautions may lead to electric shock or

other accidents resulting in injury or damage to surrounding objects.

Note

This indicates precautions which should be observed to ensure

proper handling of the equipment.

Symbols requiring attention

CAUTION ELECTRICAL

SHOCK

Symbols prohibiting actions

DO NOT

DISASSEMBLE

Symbols specifying actions

UNPLUGGING

SJ700A

II (E)

English

Warning

• Do not use this unit with voltages other than the specified supply voltage as this may result

in fire or electric shock.

• Do not perform installation work with wet hands as this may result in electric shock.

• Do not disassemble or modify the unit as this may result in injury or damage the internal

circuits.

Caution

• Be sure to check the machine and device conditions to ensure work safety before working

on the machine.

• Be sure to cut off the power supply, air and other sources of drive power before working on

the machine. Failure to do so may result in fire or accidents.

• When turning on the power supply, etc. to operate the machine, take care not to catch your

fingers in peripheral machines and devices.

(E) III

SJ700A

English

Handling Precautions

Installation precautions

When installing this unit, care should be given to the following points to prevent noise and

electromagnetic wave interference from other equipment.

1. Do not pass lead and connection cables through the same ducts as power lines.

2. Be sure to install the unit at least 0.5 m (20") or more away from high voltage or large

current sources or high-power relays.

3. Absolutely do not bring the unit near magnets or sources of electromagnetic waves.

Note

• Magnet chucks and other sources of magnetic force of approx. 600×10–4T (600 G)

should be kept at least 50 mm (2") or more away from the side surfaces and 100 mm (4")

or more away from the opening surfaces of the scale's steel chassis.

• If the unit must be installed close to sources of magnetic force, be sure to implement

adequate electromagnetic shielding countermeasures.

Installation place precautions

1. Mount the scale for more precise positioning as closely as possible to the workpiece or to

the object being measured.

(The farther the scale is mounted from workpiece, the greater the mechanical errors grow.)

2. The scale unit should be used within an ambient temperature range of 0 to 40°C. Avoid

locations where the scale is exposed to direct sunlight and heat sources such as motors.

3. Do not place anything on the mounted scale, or step on it: excessive force to the scale

causes trouble.

4. Never install the scale in locations such as places where the scale could be exposed

directly to coolant liquid or to coolant in mist form.

SJ700A

IV (E)

English

 General precautions

When using Magnescale Co., Ltd. products, observe the following

general precautions along with those given speci cally in this

manual to ensure proper use of the products.

• Before and during operations, be sure to check that our products

function properly.

• Provide adequate safety measures to prevent damage in case

our products should develop a malfunction.

• Use outside indicated speci cations or purposes and

modi cation of our products will void any warranty of the

functions and performance as speci ed for our products.

• When using our products in combination with other equipment,

the functions and performance as noted in this manual may not

be attained, depending upon the operating environmental

conditions. Make a thorough study of the compatibility in

advance.

(E) i

SJ700A

English

Contents

1. Outline .............................................................................. 1

1-1. Introduction ..............................................................................1

1-2. Major Features ..........................................................................1

1-3. Parts Con guration ................................................................ 1

1-4. System Con guration ............................................................ 2

2. Name and Function of Each Part .................................... 3

3. Mounting Method ............................................................ 5

3-1. Mounting Precautions ...........................................................5

3-1-1. Checking the mounting method ....................... 5

3-1-2. Setting the operating range ................................ 6

3-1-3. Protection of the head cable .............................. 6

3-1-4. Mounting a protective cover ...............................6

3-2. Required Items for Mounting .............................................7

3-3. Mounting Procedure ..............................................................8

3-4. Mounting Dimensions ...........................................................8

3-4-1. Mounting of the scale ............................................9

3-4-2. Mounting of the slider .......................................... 11

3-4-3. Removal of the slider holder ..............................14

3-4-4. Checking of the operating range .....................15

3-4-5. Mounting of the conduit cable .........................15

3-4-6. Connection of the head cable to

a counter unit ..........................................................16

3-4-7. Removal of the scale .............................................17

4. Speci cations ................................................................. 18

4-1. General Speci cations .........................................................18

4-2. Dimensions ..............................................................................19

5. Trouble Information ...................................................... 20

SJ700A

ii (E)

English

(E) 1

SJ700A

English

1. Outline

1-1. Introduction

SJ700A series of linear scales are semi-modular types that

incorporate the detector inside the scale, and the relative

positions of their scale and head are adjusted and secured using a

slider holder.

 e SJ700A series may be used as is by connecting it to a

Magnescale Co., Ltd. counter unit (LG20, LH70 series).

1-2. Major Features

• Compact size and light weight

• Easy to install

• Same coe cient of expansion as that of machine tools

• Highly resistant to oils and dirt

1-3. Parts Con guration

Scale unit Scale .......................................................... 1

Accessories

Cable clamps ................................................... 4

(For securing the conduit cable)

+P 4 × 10 ............................................................ 4

(For securing wires)

Spacer s ............................................................... 5

(For securing the slider)

HSB M4 × 10 ..................................................... 3

(For securing the scale)

Screening label ............................................... 1

(For covering the screw holes when

the slider holder is removed)

HSB M4 × 14 ..................................................... 2

(For securing the slider)

Plain washers (S) ............................................. 2

(For securing the slider)

HSB M5 × 25 ..................................................... 2

(For securing the slider)

Plain washers (M) ........................................... 3

(For securing the scale)

Nuts (for M5) .................................................... 2

(For securing the slider)

Instruction manual ......................................................................................................1

SJ700A

2 (E)

English

1-4. System Con guration

System configuration

Scale unit Counter

(optional)

LG20

LH70

Series

Model line up

Unit: mm (inch)

Model name Measuring length Cable length

SJ700A-015 150 (5.91")

3000 (118.11")

SJ700A-025 250 (9.84")

SJ700A-035 350 (13.78")

SJ700A-040 400 (15.75")

SJ700A-050 500 (19.69")

SJ700A-065 650 (25.59")

SJ700A-080 800 (31.50")

SJ700A-095 950 (37.40")

5000 (196.85")

SJ700A-105 1050 (41.34")

SJ700A-125 1250 (49.21")

SJ700A-140 1400 (55.12")

SJ700A-160 1600 (62.99")

(E) 3

SJ700A

English

2. Name and Function of Each Part

Serial No.

******

Alignment mark

Scale mounting hole

Measuring length

mark (left)

Side cover L

Center foot plate securing hole

Slider holder

Model name Side cover R

Serial No.

Measuring length

mark (right)

Slider

Interface unit

Slider mounting hole

Slider center

Conduit cable

Center foot plate

Interface unit tap for xing

Status lamp

SJ700A

4 (E)

English

a Slider

 is holds the detection head. When shipped, it is secured by

the slider holder.

b Slider center

 is indicates the mechanical center of the slider. It serves as

a reference when viewing the relative position with the

measuring length marks.

c Measuring length marks

 ese indicate the e ective movement range over which

accuracy is assured with respect to the slider center.

Note

When mounting and using the scale unit, be sure to operate

the unit within this range. Using the scale unit in excess of

the e ective movement range may damage the unit.

d Slider holder

 is secures the scale body and slider, and should be stored

a er removal.

e Model name

 is indicates the scale unit model name.

f Serial No.

 is indicates the scale unit serial No.

g Center foot plate

 is is mounted when the measuring length is 1250 mm or

more, and should be secured when mounting the scale unit.

h Interface unit

 is is connected to the rear panel of the counter unit.

 e interface unit contains an internal circuit which is

electrically adjusted to the optimal setting.

i Status lamp

 is is a lamp for checking the signals.

Lit green : Normal

Lit orange : Warning (Signal level drop)

Lit red : Error (Signal level drop)

Blinking red : Error (Overspeed)

j Interface unit tap for  xing

 e interface unit can be secured in place using the supplied

 xing plate and screw. (M3 depth 3 mm)

(E) 5

SJ700A

English

When mounting the scale vertically, be sure to mount the scale

slider on the opposite side of a workpiece or cutting tool.

Slider

Scale

Cutting tool

Fig. 3-2 Mounting the scale vertically

3. Mounting Method

3-1. Mounting Precautions

3-1-1. Checking the mounting method

Check that the scale unit can be mounted in the relative position

shown in the Fig. 3-1.

* Do not mount the scale in any other direction since di culties

with servicing and maintenance may arise.

(Mounting position B is available only when the scale can be

protected from cutting oil and chips. (See “3-1-4”))

(Recommended

mounting position) BA

Fig. 3-1 Scale mounting direction

SJ700A

6 (E)

English

3-1-2. Setting the operating range

•  e measuring length of the scale is the distance between the

measuring length marks (Ø) at both ends of the scale.

• Mount the scale in such a position that the slider center moves

within these measuring length marks.

• A leeway (10 mm (0.39") on the le and right) is provided for

the slider movement. Take special care not to move the slider

beyond this limit or the scale may be damaged.

Slider center

Measuring length mark

Mount the scale so that the slider center moves within this range.

(Eective movement range)

Fig. 3-3 Operating range

• Mechanical limiting devices (stoppers, etc.) are required for

sliders which move in excess of the e ective movement range

of the scale unit. In these cases, be sure to take the appropriate

measures before mounting the scale unit.

3-1-3. Protection of the head cable

 e head cable and scale come as a single integrated unit. Take

care not to pull the head cable forcefully or bend it repeatedly or

the cable may break.

3-1-4. Mounting a protective cover

If the scale is mounted in a location where it may be exposed

directly to chips or cutting oil, it is recommended that a protective

cover such as the one shown in Fig. 3-4 be installed so that the

scale is not exposed to the outside as far as possible.  is will

help to maintain the scale's performance.

Fig. 3-4 Example of protective cover

(E) 7

SJ700A

English

3-2. Required Items for Mounting

Accessories (supplied)

Hex socket head cap screw .............................................................. 3

M4 × 10 for mounting scale

(Use 2 for scales with a measuring length

less than 1,250 mm (49.21").)

Hex socket head cap screw .............................................................. 2

M4 × 14 for mounting slider

Pan head screw .................................................................................. 4

M4 × 10 for cable clamp

Plain washer (M) ............................................................................... 3

with 4 mm (0.16") dia. hole

(Use 2 for scales with a measuring length

less than 1,250 mm (49.21").)

Plain washer (S) ................................................................................. 2

with 4 mm (0.16") dia. hole for mounting slider

Cable clamp for mounting conduit cable (M) .............................. 4

Screening label ................................................................................... 1

for concealing the screw holes a er the slider holder

has been removed

Hex socket head cap screw .............................................................. 2

M5 × 25 for mounting slider

Hex nut ............................................................................................... 2

M5 for mounting slider

Spacer .................................................................................................. 5

t = 0.1 for mounting slider

Tools you need other than the supplied accessories.

Bracket for mounting scale (for A B surfaces) .........................1 to 2

Bracket for mounting slider (for C surface) ..................................... 1

Dial indicator with magnetic base capable of reading

0.01 mm (0.0005") .........................................................................1 to 2

Allen wrench for M2.6 (2 mm (0.079")) type .................................. 1

Allen wrench for M4 (3 mm (0.118")) type ...................................... 1

Allen wrench for M5 (4 mm (0.157")) type ...................................... 1

Phillips head screwdriver for M2.6 ................................................... 1

Tap M4 ................................................................................................... 1

Drill ø3.2 (0.126") dia .......................................................................... 1

Electrical drill ....................................................................................... 1

Liner, spacer t = 0.05 to 0.2 mm (0.002 to 0.08") .....................Some

Phillips head screwdriver No.2 .......................................................... 1

Note: L= measuring length

t = thickness

SJ700A

8 (E)

English

3-3. Mounting Procedure

Precautions

 e procedures for mounting the scale unit are described below.

For the scale unit, the only disassembly process during the

mounting work is removing the slider holder. (See “3-4-3”.) Do

not disassemble other locations.

 e scale unit is comprised of precision mechanical and

electromagnetic parts, so applying excessive force will have a

large e ect on the unit's performance and service life.  erefore,

take care not to apply excessive force when mounting the scale

unit.

In addition, when carrying the unit, the scale body and slider

should be held together. Take care not to carry the scale by the

head cable or interface unit.

3-4. Mounting Dimensions

Unit: mm (inch)

8 (0.31") or more

(20(0.79"))

24(0.94")

25(0.98")

(60(2.36"))

63(2.48")

A

B

C

Fig. 3-5 Mounting dimensions

(E) 9

SJ700A

English

3-4-1. Mounting of the scale

<1> When the mounting surface already meets

parallelism and flatness requirements

When the scale mounting surface is  nished and meets the

parallelism and  atness speci cations below, just mount the

scale. (For scales of L < 1250 mm (49"), use two M4 × 10 hex

socket head cap screws and two plain washers (M); for scales of

L > 1250 mm (49"), use three M4 × 10 hex socket head cap

screws and three plain washers (M). Tightening torque:

350 N·cm/35 kgf·cm)

Flatness of A, B surfaces

within 0.15 mm (0.006")

Parallelism of A, B surfaces to

machine table movement

Provide the range shown in Fig. 3-5 for surface A.

 e above tolerances suppose no quick change in the surfaces

and no obstacle in the way between the right and le mounting

surfaces.

<2> When the scale mounting surface is a casting

surface

Mount the scale using mounting brackets

(1) When the scale mounting surface is a casting

surface and parallelism is not satis ed

Use mounting brackets and adjust so that the parallelism

speci ed in <1> may be satis ed.

Mounting brackets are only necessary at the le and right

foot areas of the scale.  ey do not need to extend the entire

length of the scale. However, if it is not possible to measure

the parallelism of the le and right feet due to the movable

length of the mounted unit, it will be necessary to make

longer mounting brackets.

Shorter than the machine table stroke

Mounting bracket

Fig. 3-6 Length of mounting brackets and measurement

of their parallelism

SJ700A

10 (E)

English

(2) Checking of mounting position and tapping

Check that the parallelism for mounting scale meets the

speci cations, and then tap for M4 screws of 10 mm (0.39")

depth referring to the Dimensions on page 19.

(3) Mounting of the scale

Mount the scale loosely with M4 × 10 hex socket head cap

screws and plain washers (M), and leave it for 30 minutes for

the scale to reach ambient temperature.  en  rmly mount

the scale.

(4) Measuring parallelism of scale with machine table

movement

Place a dial gauge directly where the alignment mark (Fig.

3-7 a in the  gure below) is positioned on the side of the

scale, and check that the scale is surely mounted parallel to

the machine table movement.

Alignment mar

k

b

a

Fig. 3-7 Parallelness check of scale and machine table movement

Adjust the parallelism of the length between the two alignment

marks to within 0.15 mm (0.006") and tighten the setscrews.

For the scale with a measuring length of 1250 (49.21") or more,

adjust the parallelisms of the lengths between the alignment mark

and those on both sides of it to within 0.15 mm (0.006").

Note

Since alignment marks are not provided on scales with a

measuring length of 250 mm (9.8") or less, place the dial gauge

on the scale unit and ensure that the allowance at the two ends of

the machine travel is within 0.15 mm (0.006").

M4 × 10

Parallel ness allowance

within 0.15 mm( 0.006")

Center foot plate

Alignment marks

Plain washer (M)

Fig. 3-8 Parallelism check by alignment marks

(E) 11

SJ700A

English

(5) When the speci ed parallelism for the scale

mounting bracket is not obtained

Insert spacers below the feet and make adjustment by placing

a dial gauge at b in Fig. 3-7 to adjust the parallelism to within

0.15 mm (0.006") throughout the length between may be

obtained at the alignment marks.

For scales equipped with a center foot plate (measuring length

1,250 to 1,600 mm (49.21 to 62.99 inch)), make sure that the

parallelism near the center foot plate is also within 0.15 mm

(0.006").

3-4-2. Mounting of the slider

(1) When parallelism and  atness of the mounting

surface are already satis ed

When the mounting surface is  nished and its parallelism

and  atness satisfy the speci cations below, just mount the

slider using two M4 × 14 hex socket head cap screws and

two plain washers (S).

 e mounting dimensions di er depending on the clearance

between the B and C surfaces.

Flatness of C surface within 0.1 mm (0.004")

Parallelism of C surface to

machine table movement 0.1 mm/60 mm (0.004"/2.36")

Parallelism between B and

C surfaces

Clearance between B and

C surface

8.7 to 8.9 mm (0.343" to 0.350")

9 mm (0.35") ±0.1 mm (0.004")

• If clearance between B and C surfaces is set to

between 8.7 and 8.9 mm

Move the machine table till the mounting surface comes just at

the slider. First use the spacers provided to  ll the gap between the

mounting surface and slider, and then secure the slider.  en

remove the screws which  x slider holder. (If the gap is still not

 lled, check the gap between the B and C surfaces and adjust it

is necessary.)

SJ700A

12 (E)

English

• If the gap between the B and C surfaces is set to

9 ±0.1 mm (0.354" ±0.004").

Remove the two screws securing the scale and the slider holder

and move the slider by hand to align it with the brackets.

Secure the slider in place in the position where the protruding

portion (D) of the slider holder comes into contact with the

scale. Finally, remove the slider holder from the slider.

Note

Attempting to move the bracket side when the slider holder is

secured could cause the brackets to strike the slider.  erefore,

always move only the slider side.

Slider holder

Protruding

portion (D)

Clearance between

B and C surface Unit: mm (inch)

52 ±0.3 (2.048" ±0.012")

B

C

Fig. 3-9

(2) When the slider mounting surface has yet to meet

the speci cations

When the mounting surface of the machine is a casting

surface, use a bracket. Place the bracket on the underside of

the slider without loosening the screws that hold the slider

holder. Adjust the position of the bracket and mount it with

the supplied M4 × 14 bolts.

Slider holder Scale

2 Plain washers

(S) (accessory)

26 (1.02") or less

2-M4 × 14

(accessory)

Mounting bracket

Slider 4 (0.16") to 6 (0.24")

Unit: mm (inch)

Fig. 3-10

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