Tela TGM133, TGM134 Instruction Manual

TELA merilni sistemi

Scale Unit TGM133/134

Instruction Manual

ID 430 261 710 000, 4th Edition

Safety Precautions

TELAms 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 read this Manual before operating, installing,
maintaining, inspecting, repairing or otherwise working on this unit.

Warning, Caution

• Do not use this unit with voltages other than specified supply
voltage as this may result in fire or electric shock.

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

• Be sure to check the machine and device conditions to ensure safety
work on a machine.

• Be sure to switch off the power supply, air and other sources of

drive power before working on the machine.

• When turning on a machine power supply, take care about moving
parts of a machine and corresponding devices.

General precautions

When using TELAms products, observe the following general precautions along
with those given specifically in this manual to ensure proper use of the products.

• Provide adequate safety measures to prevent damages in case the product
should develop malfunctions.

• Use outside indicated specifications or purposes and modification of our
products will void any warranty of functions and performances

• When using our products in combination with other equipment, the functions
and performances as noted in this manual may not be attained, depending on
operating and environmental conditions.

TGM133/134 Instruction Manual May 2013 4th Edition 2/24

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 or more away from high voltage
or large current sources or high-power relays.

Installation place precautions

1. Mount the scale as closely as possible to the work-piece or to the object
being measured. Further the scale is mounted, greater is measuring error.

2. The scale unit should be used within an ambient temperature range of 0
to 50°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.

Before installation

 Do not disassemble parts other than scanning unit holder. All electrical

adjustments have also been completed before shipment. So do not tamper any
additional adjustment at time of its installation.

 This scale unit consists of precision mechanism parts and electromagnetic

parts. Therefore, applying excessive pressure to the unit can seriously harm
the performance and service life of the scale. Be careful not to apply
excessive pressure to the scale unit when proceeding with the work.

 When the unit is to be carried, support the scale unit and reading head

altogether. Do not hold the unit by the head cable, connectors, etc.

 Ensure that the scale unit housing and reading head as well as the circuit

breaker for the supply power are properly grounded.

Standard procedure for EMC compliance.
When equipment such as controller does not function properly due to the effects
of large noise from power line please provide ground lines at one point
intensively. Power source which has a remote sensing function, must be used for
TGM133. Power unit without remote sensing unit may fail to prove optimum
functions. Please provide proper power source by referring to Section 5.

TGM133/134 Instruction Manual May 2013 4th Edition 3/24

Table of contest

5

5

5

6

2. Specifications………………………………………

………….

7

3. Name and Function of Part

s ……

…………………

……….

8

4. Mounting ………………………………………………

……….

9

4.1. Mounting Precautions……………………………………

…………………………….

9

4.1.1.

Checking the Mounting P

osture………………

……………………………………

9

4.1.2.

Setting the Operation R

ange…………………………

..……………………………

9

4.1.3.

Protection of the Head C

able…………………………..

……………………………

10

4.1.4.

Mounting the Protective C

over……………………...

...

……………………………

10

4.2.

Tools required for Scale I

nstallation……………………

……………………………

11

4.3. M

ount

ing procedure

…………………………………………

………………………

…. 12

4.3

.1.

Mounting the Main U

nit

…………………………………

……………………………

12

4.3

.2. Mounting the Scanning Unit

………………………....

……………………………

13

4.3

.3. Removing the Scanning Unit Holder…………………

……………………………

14

4.3

.4. Checking the Operation Range

………………………

……………………………

15

4.3

.5. Attaching the Head Cable

…………………………….

……………………………

16

4.3

.6. Air Injection

……………………………………………….

…………………………

16

5. Connecting to

a Device ……………………………

……….

18

5.1. Output Signal……………………………………………….

……………………………

18

5.2. Output connector

s

………………………………

…….

…

………

……………………

19

5.3. Alarm ( DS version optionally )………………………….

……………………………

21

6. Dimensions …………………………………………

…………

22

7. T

rouble prevention ………………………………….……….

24

1. Outline …………………………………………………….…...

1.1. Before Operation…………………………………………...…………………………….

1.2. List of Parts Supplied with the Scale Unit……………..……………………………

1.3. Model Configuration……………………………………….……………………………

TGM133/134 Instruction Manual May 2013 4th Edition 4/24

1. Outline

1-1. Before Operation

TGM133/134 series is small, light and high-accuracy optical feedback scale.
This series provides Line driver (A, A-, B, B-, RI, RI- digital output) or
Sinusoidal signals (1Vpp or 11µA output).
Output signals are adjusted before shipment, ex.-factory, each signal can be
readily used for connection to control device as it is.

1-2. List of standard parts supplied with scale unit

TGM133 Scale unit

Parts supplied with scale unit

 HSB M8 x 20 2 (For mounting channel)
 HSB M4 x 20 2 (For mounting scanning unit)
 Cable clamp (small) 3 (For cable clamp)
 +P M4 x 10 3 (For cable clamp)
 Inspection certificate (Accuracy chart) 1
 Instruction manual 1
 Air injection valve 1

TGM133/134 Instruction Manual May 2013 4th Edition 5/24

1.3. Model configuration

Standard requirements

XX

1

Voltage supply

05 … 5V

0.1…0.1



m 0.5 … 0.5



m 1 … 1



m

XX

3

Output signals

DS SI SV

0 … without

1 … in the middle

2 … on agreement

4 …

distance coded reference

3 …



3 m 5 …



5 m

length

(see specifications on next page)

Special requirements:

XX

7

Cable length

3m : 03

Example: 1.5m : 1.5, 25m : 25

X8

Connector

*

le

0 … without

1 … with

0 … without

required for Lm

1240mm

TGM133-XX1-X2-XX3-X4-X5-XXXX6-XX7-X8-X9-X
TGM134-XX1-X2-XX3-X4-X5-XXXX6-XX7-X8-X9-X

X2 Resolution

X4 Reference mark

X5 Accuracy

10

10

XXXX

Measuring

6

Standard length [mm]

X9 Metal flexib

tube

X10 Mounting bar

1…with: recommended for Lm  1240 mm,



* Connector is defined with electrical versions SV, DS or SI:
1 … Amphenol 12 pin (DS)
4 … Conntact 12 pin connector (DS, SV)
5 … Conntact 9 pin connector (SI)
6 … Conntact 12 pin coupling (DS, SV)
7 … D-sub 9 pole (DS)
9 … other (specify)
0 … without connector

The difference between TGM133 and TGM134 see in section 6.

TGM133/134 Instruction Manual May 2013 4th Edition 6/24

2. Specifications

Items

Unit

TGM133

/134

1340, 1440, 1540, 1640, 1740, 1840, 2040

Scale accuracy (at 20



C)

m

3, 5 (per meter)

Sinusoidal signal: 1Vp

p or 11

A

20 mm apart from each other.) (NOTE 1)



m



m

20 (at 0.1 µm)

50 (at 0.5 µm)

60 (at 1.0 µm)

expansion coefficient

Protection grade

Standard: IP53, with injecting air: IP64

+5 V 1

0

0mA max (SV, SI) (NOT

E 2)

resistance

length

possible) (NOTE 3)

Operating temperature

°C

0 to +50

Storage temperature

°C -30 to +70

Operating humidity

%RH

30 to 90 (No

condensation)

m/s

m/s

Measuring length mm 70, 120, 170, 220, 270, 320, 370, 420, 470, 520, 570,

620, 670, 720, 770, 820, 920, 1020, 1140, 1240,

Output

Reference point Distance Coded Reference (position is reproduced

Resolution
Signal period
Maximum response

speed

Scale temperature

Power supply +5 V 120mA max (DS)

Scanning unit sliding

Maximum capable cable

m/min

K-1

N 3

m

Line driver: A, A-, B, B-, RI, RI-



by passing two adjacent reference marks that are

0.1, 0.5, 1.0 (DS signals)
20

120 (SI, SV)

(8.8 ± 1) X 10-6

Standard 3 (1, 5, 7, 10, 15, 20, 25, 30, 50, 100, 150

Vibration resistance
Shock resistance

(NOTE 1) Any one location can be designated as the reference point, and
multiple reference points (at a pitch of 20 mm) can also be supported.

(NOTE 2) When load resistance of A/B/RI/ALM is 120, refer to section 5-3

for details of power voltage.
(NOTE 3) SV can perform output range of 0.6 V to 1.2 V as A/B phase output
with 150 m cable made by TELAms.

TGM133/134 Instruction Manual May 2013 4th Edition 7/24

2
2

70

300

3. Name and Function of Parts







 Reading head

This holds the scanning unit. When shipped, it is secured with a scanning unit

holder.

 Centre of scanning unit

This indicates the mechanical centre of the scanning unit. It serves as a

reference when viewing the relative position to the measuring length marks.

 Measuring length marks

These indicate the effective movement range over which accuracy is assured

with respect to the centre of scanning unit. The measuring length represents
the length of the effective movement range.

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 effective movement range
may damage the unit.

 Model name

This indicates the scale unit model name.
 Serial No.
This indicates the scale unit serial No.

Connector.
 Head cable.

TGM133/134 Instruction Manual May 2013 4th Edition 8/24

4. Mounting

4-1. Mounting precautions

4-1-1. Checking the mounting posture

Check that the scale unit can be mounted in the relative positions shown in the
Fig. 4-1.
Do not mount the scale in any other posture otherwise difficulties in servicing
and maintenance may arise.
The mounting position A in particular is recommended: cutting oil and chips
may be effectively kept out.
Do not install at Position B, in case cutting oils or coolant may fall on the scale.

A B

Fig. 4-1

When a scale is installed on a vertical axis it should be mounted in such a
manner that its scanning unit will face opposite to a work piece (cutting tool).

4-1-2. Setting the operation range

• The measuring length of scale is the distance between the measuring length
marks at the both ends of the scale.

• Mount the scale in such a position that the slider center moves within these
measuring length marks.

• Take special care not to move the scanning unit beyond the range between
measurement length marks otherwise the scale may be damaged.

Mechanical limit mechanism (stoppers, etc.) is required if scanning unit needs

to move for its full stroke in measurement length near to measurement length
marks.

TGM133/134 Instruction Manual May 2013 4th Edition 9/24

Measuring length mark

Be sure to install the scale that the center of scanning unit is held in this area.

Fig. 4-2

4-1-3. Protection of the head cable

The head cable is secured on a slider with screw.
Take care not to pull the cable forcefully or bend it repeatedly otherwise the
cable may be broken or a connector may be damaged.

4-1-4. Mounting a protective cover

If chips or coolant will be splattered directly onto the scale during operation, it is
recommended that a cover which will hide it as much from outside view as
possible be mounted in order to maintain the scale’s performance. Such a cover
is shown in Fig. 4-3.

Fig. 4-3

TGM133/134 Instruction Manual May 2013 4th Edition 10/24

4-2. Tools required for scale installation

In addition to accessories, prepare following tools.

• Bracket for mounting scale (Refer to Fig. 3-4) 1 or 2

• Bracket for mounting scanning unit (Refer to Fig. 3-4)

• 0.01mm pick tester (or Dial gauge) 1 or 2

• Hexagon wrench for M4 (3mm) 1

• Hexagon wrench for M8 (6mm) 1

• Driver No.2 (+) 1

• Tap M4 1

• Tap M8 1

• Drill 3.2 1

• Drill 6.8 1

• Thickness gage = 0,7 mm 1

• Thickness gage = 1,0 mm 1

• Thickness gage = 1,4 mm 1

Accessories

 HSB M8 x 20 2 (For mounting channel)
 HSB M4 x 20 2 (For mounting scanning unit)
 Cable clamp (small) 4
 +P M4 x 10 4 (For cable clamp)

TGM133/134 Instruction Manual May 2013 4th Edition 11/24

4-3. Mounting procedure

4-3-1. Mounting scale main unit

1. Machine the mounting surface of the scale main unit to a flatness of 0.1

mm/M (where “M” is the machine guide) over the entire length of the
mounting area.

Fig. 4-4

Although Fig. 3-4 shows that brackets are being used, they are not needed if
the mounting surface of the machine main unit has already been machined to
the designated flatness before the scale is mounted.

2. Check the flatness of the mounting surface, and then attach the scale main
unit to this surface by tightening up the M8 x 20 screws.

Check the parallelism of the top surface of the scale unit at both ends across

a range of 40 mm at each end as shown in Fig. 3-5. The allowable
parallelism value is 0.1 mm.

Fig. 4-5

After adjusting the parallelism to 0.1 mm, attach the M8 screws using a

tightening torque of 22 Nm (220 kgf.cm).

TGM133/134 Instruction Manual May 2013 4th Edition 12/24

4-3-2. Mounting scanning unit

Setting mounting surface of scanning unit and mounting tolerances (“M” is

the machine guide)

without mounting bar with mounting bar

Fig. 4-6

• The mounting surface must be clean

- free of paint

- dry and without chips

It is also possible to mount in the following condition.

Fig. 4-7





TGM133/134 Instruction Manual May 2013 4th Edition 13/24

 Mounting scanning unit

3

Mount screws with scanning unit holder fixed in order to change

dimensions.
Use screws of two HSB M4 x 20 at screw torque 2.5 Nm (25 kgf.cm).

M4x20

Fig. 4-8

4-3-3. Removing scanning unit holder

The scanning unit holder can be removed in a single-action operation. When, as
shown in Fig. 4-9A, area is pressed, the tab attached to the scanning unit is
disengaged so that the scanning unit can then be moved in the lengthwise
direction of the scale unit and completely separated from the scale unit. The
scanning unit holder can now be removed by lifting it free from the scale unit.

2

1

Fig. 4-9 A

TGM133/134 Instruction Manual May 2013 4th Edition 14/24

Make sure to install the edge of scanning unit within

1

±

0

.3

1 ± 0.3 mm range.

1±0.3

Fig. 4-9 B

4.3.4. Checking the operation range

After mounting the scale and scanning unit, be sure to always move the machine
over its entire length to check that the machine movement range is within the
scale measuring length.
Be careful that the scale movement range does not exceed the scale measuring
length + range of movement. If it does, the scale can be damaged.

Fig. 4-10

TGM133/134 Instruction Manual May 2013 4th Edition 15/24

4-3-5. Attaching the head cable

Secure the head cable with a cable clamp so that it does not get entangled.

Note
Note that the wiring should be made to allow enough room for machine
movement during operation.

Fig. 4-11

4.3.6. Air injection

Air can be injected from both sides of the scale side cover (or, optionally, from
the slider).
In the case of using scale unit under circumstances as follows, clean air injection
will minimize their influence.

 Dusty
 High humidity
 Probable condensation inside scale by temperature and humidity change

Actual effects are different depending on working condition. Adopt after
verifying effects enough.

C

A B

B: Optionally provided

Fig. 4-12

TGM133/134 Instruction Manual May 2013 4th Edition 16/24

Air injection to upper scale unit (A) and air injection to slider connector (C) on

Item

Specifications

Guaranteed maximum pressure

1.5 MPa

Max. working pressure

1020 kPa

Adjustable pressure range

20 to 200 kPa

Working fluid

Air

(No condensation)

Mist separator: 0.3 µm

Pressure gauge tester connecting bore

2-

RC (PT) 1/8

OUT side: Tube shape

6

Automatic drain working pressure

150 to 1020 kPa

Fig. 4-12, is possible with nipple in accessory. But air injection to slider (B) is
optional, so separate order for it required.
An example of air pipe route and device configuration is shown as follows.

Tube bend radius R15 mm or more

Outside diameter 6, Inside

diameter 4 polyurethane tube

Connect to scale

Outside diameter

8 Nylon tube

Distribution parts

Pressure reducer

Filter 5m Mist separator (0.3m)

Fig. 4-13

The air supply unit and equipment are provided by the customer.
Specifications of standard device are shown for your reference.

Ambient temperature and working fluid

-

5 to 30°C

temperature
Filtration grade

Air filter: 5 µm

Pipe connecting bore

TGM133/134 Instruction Manual May 2013 4th Edition 17/24

IN side: Tube shape 8



Table 4-1

5. Connecting to device

5.1. Output signals

 Digital output – DS (TTL):

supply 5V (150mA max.)

t  0.1 s

 Sinusoidal output – SV (1Vpp) :

supply 5V (100mA max.)

U0 = 2.5V (Ud/2)

 = 20 m

Fig. 5-1

Fig. 5-2

U0

U0

U0

360°

A

90°

B

90°

RI

t

360°

90°

360°

t

1Vp-p

A

B

0.5Vp-p
RI

 Sinusoidal output – SI (11µA) :

supply 5V (100mA)

Iao

7-16Ap-p

Ibo

90°

Fig. 5-3

IRIo

2-8Ap-p

TGM133/134 Instruction Manual May 2013 4th Edition 18/24

5.2. Output connectors

 Digital output - DS, 12 pin Amphenol connector:

L

D

H

B
A

RI

E

BLUE (isolate)

B 0V GREEN/WHITE

0V (sens) VIOLET

E B RED

C A GREEN

G RI PINK

K +5V GREEN/YELLOW

+5V (sens) WHITE

Housing shield SHIELD

Connect shield to connector housing

Fig. 5-4

BLACK

BROWN

GREY

 Digital output - DS, 12 pin Contact connector or coupling:

1

6

4

7

B
A

RI

E

BLACK

BROWN

GREY

BLUE

10 0V GREEN/WHITE

11 0V (sens) VIOLET

8 B RED

5 A GREEN

3 RI PINK

12 +5V GREEN/YELLOW

2 +5V (sens) WHITE

Housing shield SHIELD

Connect shield to connector housing

Fig. 5-5

TGM133/134 Instruction Manual May 2013 4th Edition 19/24

 Sinusoidal output – SV (1Vpp), 12 pin Contact connector or coupling:

1

UB

RED

6

4

UA

URI

10 0V

11 0V (sens)

8 U B

5 U A

3 U RI

12 +5V

2 +5V (sens)

Housing shield

GREEN/WHITE + VIOLET

BROWN

PINK

BLUE

BLACK

GREEN

GREY

GREEN/YELLOW

WHITE

SHIELD

Connect shield to connector housing

Fig. 5-6

 Sinusoidal output – SI (11App), 9 pin Contact connector:

6 Ib- RED

2 Ia- BROWN

8 Iri- PINK

4 0V GREEN/WHITE

4 0V VIOLET, BLUE

5 Ib+ BLACK

1 Ia+ GREEN

7 Iri+ GREY

3 +5V GREEN/YELLOW

3 +5V WHITE

Housing (Shield) SHIELD

Connect shield to connector housing

Fig. 5-7

 Wires for signals must be twisted pairs, cross section 0.14 mm

and voltage supply wires 0,25 mm2 (AWG22), Calculated

2 (

AWG26)

Structure: Twisted wire, Electrical resistance: 141 /km or less

 Shielding structure: all wires must be covered with braided shield

TGM133/134 Instruction Manual May 2013 4th Edition 20/24

5.3. Alarm (DS versions optionally)

DS outputs an alarm in the following cases:

1. Exceeding max. response speed of scale.

2. Broken head cable.

3. Malfunction occurred by noise.

When an alarm occurs E output goes to High andE goes to Low. At that
timeA, A,B and B turn to high impedance. Alarm signal will be automatically

released when cause of alarm is eliminated. To release an alarm signal,
disconnect the power supply once and turn on the power again.

TGM133/134 Instruction Manual May 2013 4th Edition 21/24

6. Dimensions TGM133

TGM133/134 Instruction Manual May 2013 4th Edition 22/24

TGM134

TGM133/134 Instruction Manual May 2013 4th Edition 23/24

7. Trouble Prevention

 Repairs are required in the event of an overrun, cable damage, deformation of

the scale unit, or other conditions detrimental to the functioning of the scale.

If any of these events occur, immediately stop the machine, and contact your

distributor.

 Depending on the degree of damage, some repairs may be unable to be carried

out.

Regular cleaning is recommended to prevent the following types of device

troubles:

- Ensure that chips are cleaned up before starting work and at the end of

work everyday to prevent them from accumulating around the scale.

- The accumulation of chips can prevent the scale from sliding and cause

breakdowns.

- Do not use air guns or similar devices for cleaning the chips. Although the

travelling part of the scale unit is sealed, it is not completely air-tight for
structural reasons. Therefore, use of an air gun can cause chips or other
debris to enter the sealed area of the scale and cause breakdowns.

TELA merilni sistemi d.o.o.

Cesta dveh cesarjev 403

1000 Ljubljana

Slovenia

Tel: + 386 1 4769 848

Fax: + 386 1 4769 882

e-mail: [e-mail]

http: www.tela-ms.si

TOCK-AUTOMATYKA Krzysztof Toczydłowski

GENERALNY DYSTRYBUTOR W POLSCE

15-361 BIAŁYSTOK UL. KS. ABPA E. KISIELA 28

TEL: [phone]

FAX: [phone]

E-Mail: [e-mail]

http: www.tock.pl

TGM133/134 Instruction Manual May 2013 4th Edition 24/24