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Smart encoders & actuators
SFAM1-05000
SFAM2-10000
• Absolute draw-wire encoder with SSI output
• LSB Right Aligned protocol
• Binary or Gray output code
Max. measuring length 5000 mm (196.85") or 10000 mm (393.7")
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• Cable, M12 connector or M23 connector outlet
Suitable for the following models:
SFAM1-05000-BA2-...
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SFAM1-05000-GA2-...
•
SFAM2-10000-BA2-...
•
SFAM2-10000-GA2-...
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Lika Electronic
User's guide
•
Tel. +39 0445 806600
Absolute draw-wire encoder with SSI output
General Contents
Preliminary information
Safety summary
Identification
Mechanical installation
Electrical connection
SSI interface
•
info@lika.biz
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18
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www.lika.biz
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Related Manuals for Lika SFAM2-10000
Summary of Contents for Lika SFAM2-10000
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Page 1: User's Guide
User's guide Smart encoders & actuators SFAM1-05000 SFAM2-10000 Absolute draw-wire encoder with SSI output • Absolute draw-wire encoder with SSI output • LSB Right Aligned protocol • Binary or Gray output code Max. measuring length 5000 mm (196.85”) or 10000 mm (393.7”) •... - 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.
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Page 3: Table Of Contents
General contents User's guide......................................1 General 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 SFAM1-05000 and SFAM2-10000 absolute draw-wire encoders. SFAM1-05000/SFAM2-10000 cable-pulling encoder is aimed at speed and position measurements and controls in a variety of industrial applications through the movement of a 5,000 mm (196.85”) or... -
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
SFAM1-05000 • SFAM2-10000 - 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
SFAM1-05000 • SFAM2-10000 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 SFAM1_05000_SFAM2_10000 SSI E 1.1 Mechanical installation... -
Page 10: Mounting Instructions
SFAM1-05000 • SFAM2-10000 3.2 Mounting instructions Fasten the draw-wire unit onto a fixed support using three M4 screws • remove the transport safety wire that pins the end of the measuring • wire; fix the end of the measuring wire to the moving unit using the provided •... -
Page 11: 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 200 mm (7.874”), the maximum number of turns is 25 for SFAM1-05000 and 50 for SFAM2-10000. EXAMPLE 1 SFAM1-05000-GA2-08192-AL010 Stroke per turn = 200 mm (7.874”) -
Page 12: Maintenance
SFAM1-05000 • SFAM2-10000 Interface = SSI “LSB Right Aligned” protocol, Gray code EXAMPLE 2 SFAM2-10000-BA2-02000-RM2 Stroke per turn = 200 mm (7.874”) Resolution per turn = 2,000 cpr Max. number of encoder revolutions = 4,096 Linear resolution = 0.1 mm = 100 µm Max. -
Page 13: Electrical Connection
SFAM1-05000 • SFAM2-10000 Electrical connection WARNING Electrical connection has to be carried out by qualified personnel only, with power supply disconnected and mechanical parts compulsorily in stop. 4.1 Cable and connectors connections Function A8 cable M23 12-pin M12 8-pin Clock IN +... -
Page 14: M23 12-Pin Connector Specifications
SFAM1-05000 • SFAM2-10000 4.3 M23 12-pin connector specifications Male Counter-clockwise Frontal side 4.4 M12 8-pin connector specifications Male A coding Frontal side 4.5 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: Ground Connection
SFAM1-05000 • SFAM2-10000 4.6 Ground connection Minimize noise by connecting the shield and/or the connector housing and/or the frame to ground. Make sure that ground is not affected by noise. The connection point to ground can be situated both on the device side and on user’s side. - Page 16 SFAM1-05000 • SFAM2-10000 position of both the encoder and the machine. To zero set the encoder, connect Zero setting input to +Vdc for 100 µs at least, then disconnect +Vdc; normally voltage must be at 0Vdc; zero set must be performed after Counting direction setting;...
- Page 17 SFAM1-05000 • SFAM2-10000 Max. number of Model Max. value information SFAM1-05000-xxx-08192-... 204,800 25 bits (33,554,432) SFAM2-10000-xxx-08192-... 409,600 SFAM1-05000-xxx-04000-... 100,000 24 bits (16,384,000) SFAM2-10000-xxx-04000-... 200,000 SFAM1-05000-xxx-02000-... 50,000 23 bits (8,192,000) SFAM2-10000-xxx-02000-... 100,000 MAN SFAM1_05000_SFAM2_10000 SSI E 1.1 Electrical connection 17 of 28...
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Page 18: Ssi Interface
SFAM1-05000 • SFAM2-10000 SSI interface Order code: SFAMx-xxxxx-BA2-… SFAMx-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 19: Lsb Right Aligned" Protocol
SFAM1-05000 • SFAM2-10000 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 20 SFAM1-05000 • SFAM2-10000 Thus it will be as follows: Max. Counts per Information Length of Model Resolution number of revolution per mm the word information SFAM1-05000-xxx-08192-... 25 bits 8,192 cpr 41.66 0.024 mm 25 bits (33,554,432) SFAM2-10000-xxx-08192-... SFAM1-05000-xxx-04000-... 24 bits 4,000 cpr 0.05 mm...
- Page 21 Linear position value = 123 * 0.024 = 2.952 mm = 2,952 µm EXAMPLE 2 Let's suppose that we are using the SFAM2-10000-GA2-04000-... draw-wire encoder and the transmitted position value is 1,569. The encoder resolution is 4,000 cpr. The linear resolution (0.05 mm) can be read in the product datasheet;...
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Page 22: Recommended Transmission Rates
SFAM1-05000 • SFAM2-10000 200 mm Linear resolution = = 0.05 mm = 50 µm 4,000 cpr Thus the linear position value will be as follows: Linear position value = 1569 * 0.05 = 78.45 mm = 78,450 µm 5.3 Recommended transmission rates The SSI interface has a frequency of data transmission ranging between 100 kHz and 2 MHz. - Page 23 SFAM1-05000 • SFAM2-10000 If you need to convert the speed value from rpm into m/s, use the following formula instead: rpm * 200 Speed in m/s = / 1000 EXAMPLE Let's assume that we are using the SFAM1-05000-BA2-08192-... draw-wire encoder and the maximum speed of the application is 1 m/s. To calculate the counting frequency we must convert the speed expressed in m/s into rpm first.
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Page 24: Recommended Ssi Circuit
SFAM1-05000 • SFAM2-10000 The reversed formula can be very useful -for instance- when you know the maximum counting frequency that is applicable to the system (because of the encoder, the following electronics and the cable length) and you need to calculate the maximum rotational speed the encoder is allowed to reach at the desired resolution. - Page 25 This page intentionally left blank...
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- Page 28 Document release Release date Description files version 11.09.2015 issue New product name, new order code, minor 15.02.2023 amendments, general revision Lika Electronic Via S. Lorenzo, 25 • 36010 Carrè (VI) • Italy Tel. +39 0445 806600 Fax +39 0445 806699 info@lika.biz...
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