Table of Contents
Advertisement
Quick Links
Smart encoders & actuators
SFAS1-01000
SFAS1-02000
• Absolute draw-wire encoder with SSI interface
• Robust and compact design
• Resolution from 0.1 mm to 0.012 mm
• Max. measuring length: 1000 mm or 2000 mm
• Cable and M12 connector outputs
Suitable for the following models:
SFAS1-01000-BA2-...
•
SFAS1-01000-GA2-...
•
SFAS1-02000-BA2-...
•
SFAS1-02000-GA2-...
•
Lika Electronic
User's guide
•
Tel. +39 0445 806600
Miniature absolute draw-wire encoder
General Contents
Preliminary information
Safety summary
Identification
Mechanical installation
Electrical connection
SSI interface
•
info@lika.biz
13
17
•
www.lika.biz
5
6
8
9
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Lika SFAS1-01000-BA2 Series
Summary of Contents for Lika SFAS1-01000-BA2 Series
-
Page 1: User's Guide
• Cable and M12 connector outputs Suitable for the following models: General Contents Preliminary information SFAS1-01000-BA2-... • Safety summary SFAS1-01000-GA2-... • Identification SFAS1-02000-BA2-... • Mechanical installation SFAS1-02000-GA2-... • Electrical connection SSI interface Lika Electronic • Tel. +39 0445 806600 • info@lika.biz • www.lika.biz... - Page 2 Tous droits réservés. This document and information contained herein are the property of Lika Electronic s.r.l. and shall not be reproduced in whole or in part without prior written approval of Lika Electronic s.r.l. Translation, reproduction and total or partial modification (photostat copies, film and microfilm included and any other means) are forbidden without written authorisation of Lika Electronic s.r.l.
-
Page 3: Table Of Contents
Table of contents User's guide......................................1 Table of contents.....................................3 Typographic and iconographic conventions........................4 Preliminary information................................5 1 Safety summary............................. 6 1.1 Safety.....................................6 1.2 Electrical safety.................................6 1.3 Mechanical safety..............................7 2 Identification............................8 3 Mechanical installation........................9 3.1 Overall dimensions..............................9 3.2 Mounting instructions............................10 3.3 Useful information..............................11 3.4 Maintenance................................12 4 Electrical connection.......................... -
Page 4: Typographic And Iconographic Conventions
Typographic and iconographic conventions In this guide, to make it easier to understand and read the text the following typographic and iconographic conventions are used: parameters are coloured in GREEN; • alarms are coloured in RED; • states are coloured in FUCSIA. •... -
Page 5: Preliminary Information
Preliminary information This guide is designed to provide the most complete and exhaustive information the operator needs to correctly and safely install and operate the SFAS1-01000 and SFAS1-02000 absolute draw-wire encoders. SFAS1-01000/SFAS1-02000 cable-pulling encoder is aimed at speed and position measurements and controls in a variety of industrial applications through the movement of a 1,000 mm (39.37”) or 2,000 mm (78.74”) stainless steel wire. -
Page 6: Safety Summary
• elsewhere in this manual violates safety standards of design, manufacture, and intended use of the equipment; Lika Electronic assumes no liability for the customer's failure to comply • with these requirements. 1.2 Electrical safety Turn OFF the power supply before connecting the device;... -
Page 7: Mechanical Safety
SFAS1-01000 • SFAS1-02000 - always use shielded cables (twisted pair cables whenever possible); - avoid cables runs longer than necessary; - avoid running the signal cable near high voltage power cables; - mount the device as far as possible from any capacitive or inductive noise source;... -
Page 8: Identification
Information is listed in the delivery document too. Please always quote the order code and the serial number when reaching Lika Electronic. For any information on the technical characteristics of the product refer to the technical catalogue. -
Page 9: Mechanical Installation
SFAS1-01000 • SFAS1-02000 Mechanical installation WARNING Installation has to be carried out by qualified personnel only, with power supply disconnected and mechanical parts compulsorily in stop. 3.1 Overall dimensions Values are expressed in mm MAN SFAS1_01000_02000 SSI E 1.3 Mechanical installation 9 of 24... -
Page 10: Mounting Instructions
SFAS1-01000 • SFAS1-02000 3.2 Mounting instructions Fasten the draw-wire unit onto a fixed support using two M3 screws 1; • remove the transport safety wire that pins the end of the measuring • wire; fix the end of the measuring wire to the moving element using the •... -
Page 11: Useful Information
SFAS1-01000 • SFAS1-02000 Always keep the wire aligned not to damage the equipment (maximum deviation: 3°). 3.3 Useful information If you want to know the maximum measuring length and the resolution of the draw-wire encoder please refer to the order code. The stroke per turn is always 100 mm (3.937”), the maximum number of turns is 10 for SFAS1-01000 and 20 for SFAS1-02000. -
Page 12: Maintenance
SFAS1-01000 • SFAS1-02000 Max. measuring length = 2,000 mm (78.74”) Number of information = 80,000 Interface = SSI “LSB Right Aligned”, Binary code 3.4 Maintenance The measuring system does not need any particular maintenance; anyway it has to be handled with the utmost care as any delicate electronic equipment. From time to time we recommend the following operations: the unit and the wire have to be cleaned regularly using a soft and clean •... -
Page 13: Electrical Connection
Grey Shielding Case Shield 4.2 M8 cable specifications Model : LIKA HI-FLEX sensor cable type M8 cable Cross section : 2 x 0.22 mm + 6 x 0.14 mm (24/26 AWG) Jacket : PUR (ether base), halogen free, oil, hydrolysis, abrasion resistant : tinned copper braid, coverage ... -
Page 14: M12 8-Pin Connector Specifications
SFAS1-01000 • SFAS1-02000 4.3 M12 8-pin connector specifications Male Frontal side A coding 4.4 Connection of the shield For signals transmission always use shielded cables. The cable shielding must be connected properly to the metal ring nut 3 of the connector in order to ensure a good earthing through the frame of the device. -
Page 15: Zero Setting Input
SFAS1-01000 • SFAS1-02000 the user. You are advised to provide the ground connection as close as possible to the encoder. 4.6 Zero setting input The output value can be set to zero (reset) via an external signal issued by a PLC or other controller device. -
Page 16: Counting Direction Input
SFAS1-01000 • SFAS1-02000 Max. number of Model Max. value information SFAS1-01000-xxx-08192-... 81,920 25 bits (33,554,432) SFAS1-02000-xxx-08192-... 163,840 SFAS1-01000-xxx-04000-... 40,000 25 bits (33,554,432) SFAS1-02000-xxx-04000-... 80,000 SFAS1-01000-xxx-02000-... 20,000 25 bits (33,554,432) SFAS1-02000-xxx-02000-... 40,000 SFAS1-01000-xxx-01000-... 10,000 25 bits (33,554,432) SFAS1-02000-xxx-01000-... 20,000 4.7 Counting direction input The counting direction circuit allows to reverse the counting direction. -
Page 17: Ssi Interface
SFAS1-01000 • SFAS1-02000 SSI interface Order code: SFAS1-xxxxx-BA2-… SFAS1-xxxxx-GA2-… 5.1 SSI (Synchronous Serial Interface) Synchronous Serial SSI (the acronym Interface) is a synchronous point-to-point serial interface engineered unidirectional data transmission between one Master and one Slave. Developed in the first eighties, it is based on the RS- 422 serial standard. -
Page 18: Lsb Right Aligned" Protocol
SFAS1-01000 • SFAS1-02000 At each change of the clock signal and at each subsequent rising edge (2) one bit is clocked out at a time, up to LSB, so completing the data word transmission. The cycle ends at the last rising edge of the clock signal (3). This means that up to n + 1 rising edges of the clock signals are required for each data word transmission (where n is the bit resolution);... - Page 19 SFAS1-01000 • SFAS1-02000 Thus it will be as follows: Max. Counts per Information Length of Model Resolution number of revolution per mm the word information SFAS1-01000-xxx-08192-... 25 bits 8,192 91.92 0.012 mm 25 bits (33,554,432) SFAS1-02000-xxx-08192-... SFAS1-01000-xxx-04000-... 25 bits 4,000 0.025 mm 25 bits (33,554,432)
- Page 20 SFAS1-01000 • SFAS1-02000 Then if you want to know the linear position value you will need to multiply the transmitted position value by the linear resolution. Linear position value = transmitted position * linear resolution NOTE Please note that the encoder's linear resolution can be read also in the order code next to the rotary resolution.
-
Page 21: Recommended Transmission Rates
SFAS1-01000 • SFAS1-02000 EXAMPLE 2 Let's suppose that we are using the SFAS1-02000-GA2-08192-... draw-wire encoder and the transmitted position value is 1569. The resolution of the encoder is 8,192 cpr. The linear resolution (0.012 mm) can be read in the product datasheet; anyway it can be easily calculated as follows: Stroke per turn Linear resolution = Resolution cpr... -
Page 22: Max. Speed And Counting Frequency
SFAS1-01000 • SFAS1-02000 5.4 Max. speed and counting frequency To convert the speed value from m/s into rpm (revolutions per minute), then you must use the following formula: 60 * speed m/s Speed in rpm = If you need to convert the speed value from rpm into m/s, use the following formula instead: rpm * 200 Speed in m/s =... -
Page 23: Recommended Ssi Circuit
SFAS1-01000 • SFAS1-02000 If you reverse the formula you can easily calculate the maximum number of revolutions starting from the value of the counting frequency (as allowed by the encoder, permitted by the subsequent electronics and accepted by the cable run) and the desired number of pulses per revolution: Maximum counting frequency (kHz) * 60 * 1,000 rpm =... - Page 24 22.04.2015 General review General review, electrical connections updated, 01.02.2017 Italian and English versions separated 12.01.2023 New product name, new order code Lika Electronic Via S. Lorenzo, 25 • 36010 Carrè (VI) • Italy Tel. +39 0445 806600 Fax +39 0445 806699 info@lika.biz...
Need help?
Do you have a question about the SFAS1-01000-BA2 Series and is the answer not in the manual?
Questions and answers