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SMAG + MTAG SSI

3.4 Profile of the magnetic tape (Figure 2)

It is mandatory to pair the sensor with the 

MTAG type magnetic tape

.

The profile of the magnetic tape can be secured:

1. to a sliding device driven manually, pneumatically or by a motor; in this

first case the tape will move back and forth while the sensor will be
mounted in a fixed position;

2. or to a fixed support: in this case, the tape will be mounted in a fixed

position while the sensor will move back and forth.

The profile must be installed so that the active magnetic surface (black side) is
turned towards the active surface of the sensor (electronic card).
Use  

one TSP M4 UNI 7688 type countersunk head screw

  to secure the

profile of the magnetic tape; insert the screw in the hole provided at one end of
the profile. The screw is 10 mm min. long. 

The maximum tightening torque is

2.5 Nm

.

The length of the profile ranges between 195 mm / 7.677” and 650 mm / 25.59”.

WARNING

Do not expose the sensor and the magnetic tape to magnetic fields. Avoid any
possible interference of the unit with magnetic fields.

WARNING

After having installed the sensor on the magnetic tape a zero setting operation
is compulsorily required. The zero setting operation is further required every
time either the sensor or the tape is replaced. For any information on the zero
setting operation please refer to the “4.1.5 Zero setting input” section on page
13.

3.5 Measuring length (Figure 1)

The  

maximum tape length L

  is between 195 mm /  7.677”” and 650 mm /

25.59” (for further information refer the order code in the product datasheet).
As the sensor area has always to be fully within the limits of the tape magnetic
surface,   then   the  

maximum   measuring   length   ML

  is   the   maximum   tape

length minus the sensor length (see the Figure 1)  =  L  –  80 mm / 3.149” (115
mm / 4.528” ÷ 570 mm / 22.441”).

3.6 Standard counting direction (Figure 2)

The positive counting direction (count up information) is achieved when the
sensor moves on the tape according to the white arrow shown in Figure 2; or,
on the contrary, when the tape moves according to the black arrow shown in
Figure 2. For further information see the “4.1.6 Counting direction input” section
on page 14.

MAN SMAG GA E 1.3.odt

3 – Mechanical installation

11 of 20

Содержание SMAG+MTAG Series

Страница 1: ...m to 0 005 mm SSI interface LSB Right Aligned protocol Suitable for the following models SMAG GA 100 SMAG GA 50 SMAG GA 10 SMAG GA 5 Table of Contents Preliminary information 5 1 Safety summary 6 2 Id...

Страница 2: ...on herein is subject to change without notice and should not be construed as a commitment by Lika Electronic s r l Lika Electronic s r l reserves the right to make all modifications at any moments and...

Страница 3: ...0 3 4 Profile of the magnetic tape Figure 2 11 3 5 Measuring length Figure 1 11 3 6 Standard counting direction Figure 2 11 4 SSI interface 12 4 1 Electrical connections 12 4 1 1 M8 cable specificatio...

Страница 4: ...nt to highlight the parts of the text where information of great significance for the user can be found user must pay the greatest attention to them Instructions must be followed strictly in order to...

Страница 5: ...moved under the sensor thus the sensor detects the displacement and issues an output signal equivalent to the one generated by an absolute encoder or an optical linear scale The sensor must be compuls...

Страница 6: ...used to zero set the encoder connect Zero setting input to Vdc for 100 s at least then disconnect Vdc normally voltage must be at 0Vdc zero set must be performed after Counting direction setting we su...

Страница 7: ...installation has to be carried out with stationary mechanical devices do not disassemble the unit do not tool the unit delicate electronic equipment handle with care do not subject the unit to knocks...

Страница 8: ...umber when reaching Lika Electronic for purchasing spare parts or needing assistance For any information on the technical characteristics of the product refer to the technical catalogue Warning device...

Страница 9: ...ver the allowed range Make sure the unit is mounted where hard or sharp objects e g turnings chips or filings do not come into contact with the magnetic tape and the bottom of the sensor head If these...

Страница 10: ...sor can be secured 1 to a sliding carriage 2 to an actuator 3 to a mobile support 4 or to a fixed support Use four TCEI M4 UNI 5931 type cylinder head screws inserted from the top in the holes provide...

Страница 11: ...ossible interference of the unit with magnetic fields WARNING After having installed the sensor on the magnetic tape a zero setting operation is compulsorily required The zero setting operation is fur...

Страница 12: ...n Grey 8 Shielding Shield Case 4 1 1 M8 cable specifications Model LIKA HI FLEX sensor cable type M8 Wires 2 x 0 22 mm2 6 x 0 14 mm2 24 26 AWG Jacket Matt Polyurethane TPU halogen free oil hydrolysis...

Страница 13: ...must be at 0Vdc zero set must be performed after Counting direction setting we suggest performing the zero set when the encoder is in stop Connect to 0Vdc if not used WARNING It is necessary to zero...

Страница 14: ...40 16 000 16 384 14 bits SMAG GA 10 MTAG 220 14 000 16 384 14 bits SMAG GA 10 MTAG 192 11 500 16 384 14 bits SMAG GA 5 MTAG 650 114 000 131 072 17 bits SMAG GA 5 MTAG 370 58 000 65 536 16 bits SMAG GA...

Страница 15: ...hat data transmission is achieved by synchronizing both the Master and the Slave devices to a common clock signal generated by the controller in this way the output information is clocked out at each...

Страница 16: ...clock signal transmission the encoder is then ready for the next transmission and therefore the data signal is switched high The clock signal has a typical logic level of 5V the same as the output sig...

Страница 17: ...sition value issued by the sensor is expressed in pulses thus you have then to convert the number of pulses into a linear measuring unit To convert the position value into millimetres mm or micrometre...

Страница 18: ...2 standard The clock frequency baud rate depends on the length of the cables and must comply with the technical information reported in the following table Cable length Baud rate 50 m 400 kHz 100 m 30...

Страница 19: ...onic equipment From time to time we recommend the following operations to be performed periodically check the soundness of the structure and make sure that there are no loose screws tighten them if ne...

Страница 20: ...ral review English translation 1 2 18 05 2015 General review 3 Mechanical installation section updated 1 3 24 01 2017 General review Italian and English versions separated mounting instructions update...

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