Table of Contents
Advertisement
Quick Links
Smart encoders & actuators
SMAX
• Cost-effective absolute linear encoder
• Measuring length up to 600 mm / 23.622"
• Resolution down to 0.1 mm
• SSI and voltage/current analogue interfaces
• Up to IP69K protection rate
Suitable for the following models:
SMAX-BG-...
•
SMAX-GG-...
•
SMAX-AI1-...
•
SMAX-AV2-...
•
Lika Electronic
User's guide
•
Tel. +39 0445 806600
Table of Contents
1 - Safety summary
2 - Identification
3 - Mounting instructions
4 - SSI interface
5 - Analogue interface
6 - Diagnostic LED
7 - Maintenance
8 - Troubleshooting
•
info@lika.biz
13
20
28
29
30
•
www.lika.biz
7
8
9
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Lika SMAX-BG series
Summary of Contents for Lika SMAX-BG series
-
Page 1: User's Guide
2 - Identification SMAX-GG-... • 3 - Mounting instructions SMAX-AI1-... • 4 - SSI interface SMAX-AV2-... • 5 - Analogue interface 6 - Diagnostic LED 7 - Maintenance 8 - Troubleshooting 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....................5 Preliminary information............................ 6 1 - Safety summary............................7 1.1 Safety......................................7 1.2 Electrical safety...................................7 1.3 Mechanical safety................................8 2 - Identification............................8 3 - Mounting instructions..........................9 3.1 Overall dimensions................................9 3.2 Magnetic tape..................................9 3.3 Mounting the sensor..............................10... - Page 4 5.5 Recommended voltage analogue output circuit....................27 6 - Diagnostic LED............................28 7 - Maintenance............................29 8 - Troubleshooting............................. 30...
-
Page 5: 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 and objects both of Lika device and interface are coloured in GREEN; • alarms are coloured in RED;... -
Page 6: 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 SMAX absolute linear encoder with SSI and analogue interfaces. This encoder is designed to measure linear displacements in industrial machines and automation systems. The measurement system includes a magnetic tape and a magnetic sensor with conversion electronics. -
Page 7: 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 power supply before connecting the device;... -
Page 8: Mechanical Safety
Information is listed in the delivery document too. Please always quote the order code and the serial number 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 datasheet. -
Page 9: Mounting Instructions
SMAX - SSI and analogue 3 - Mounting instructions 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) 3.2 Magnetic tape The sensor has to be paired with the MTAX type magnetic tape only. -
Page 10: Mounting The Sensor
SMAX - SSI and analogue moves in the direction indicated by the arrow; further information in the “4.1.6 Counting direction input” section on page 15). WARNING The system cannot operate if mounted otherwise than illustrated in Figure 1. 3.3 Mounting the sensor Figure 1 Make sure the mechanical installation complies with the system requirements concerning distance, planarity and parallelism between the sensor and the scale... - Page 11 SMAX - SSI and analogue WARNING Make sure the mechanical installation complies with the system requirements concerning distance, planarity and parallelism between the sensor and the scale as shown in Figure 2 all along the whole measuring length. Figure 2 WARNING After having installed the sensor on the magnetic scale a zero setting operation is compulsorily required.
-
Page 12: Measuring Length
SMAX - SSI and analogue 3.4 Measuring length The maximum length of the tape L is between 280 mm / 11.023” and 680 mm / 26.771” (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 length of the tape minus the length of the sensor head = L –... -
Page 13: Ssi Interface
Counting direction Grey Shield Shield Case 4.1.1 M8 cable specifications Model : LIKA HI-FLEX sensor cable type M8 Wires : 2 x 0.22 mm + 6 x 0.14 mm (24/26 AWG) Jacket : Matt Polyurethane (TPU) halogen free, oil, hydrolysis, abrasion resistant : tinned copper braid, coverage ... -
Page 14: Connection Of The Shield
SMAX - SSI and analogue 4.1.3 Connection of the shield For signals transmission always use shielded cables. The cable shielding must be connected properly to the metal ring nut of the connector in order to ensure a good earthing through the frame of the device. 4.1.4 Ground connection Minimize noise by connecting the shield and/or the connector housing and/or the sensor to ground. -
Page 15: Counting Direction Input
SMAX - SSI and analogue Max. number of Model Max. value information SMAX-xx-1250-... + MTAX-680 512 (9 bits) SMAX-xx-1250-... + MTAX-380 256 (8 bits) SMAX-xx-1250-... + MTAX-280 256 (8 bits) SMAX-xx-1000-... + MTAX-680 1,024 (10 bits) SMAX-xx-1000-... + MTAX-380 512 (9 bits) SMAX-xx-1000-... - Page 16 SMAX - SSI and analogue 422 serial standard. Its most peculiar feature is that 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 controller's request.
-
Page 17: Msb Left Aligned Protocol
SMAX - SSI and analogue The clock signal has a typical logic level of 5V, the same as the output signal which has customarily a logic level of 5V in compliance with RS-422 standard. The output code can be either Binary or Gray (see the order code). 4.2.1 MSB left aligned protocol “MSB left aligned”... -
Page 18: Recommended Transmission Rates
SMAX - SSI and analogue WARNING The position value issued by the sensor is expressed in pulses; to convert the pulses into a metric measuring unit you must multiply the number of detected pulses by the resolution. EXAMPLE 1 SMAX-BG-500-… resolution: 500 µm = 0.5 mm detected pulses = 123 position value = 123 * 500 = 61,500 µm = 61.5 mm... -
Page 19: Recommended Ssi Circuit
SMAX - SSI and analogue 4.3 Recommended SSI circuit MAN SMAX SSI_AI1_AV2 E 1.5.odt 4 - SSI interface 19 of 32... -
Page 20: Analogue Interface
Shield Shield Case n. c. = not connected 5.1.1 M8 cable specifications Model : LIKA HI-FLEX sensor cable type M8 Wires : 2 x 0.22 mm + 6 x 0.14 mm (24/26 AWG) Jacket : Matt Polyurethane (TPU) halogen free, oil, hydrolysis, abrasion resistant : tinned copper braid, coverage ... -
Page 21: M12 8-Pin Connector
SMAX - SSI and analogue 5.1.2 M12 8-pin connector Male, frontal side A coding 5.1.3 Connection of the shield For signals transmission always use shielded cables. The cable shielding must be connected properly to the metal ring nut of the connector in order to ensure a good earthing through the frame of the device. -
Page 22: Stop Input
SMAX - SSI and analogue 5.2.5 STOP input It is used to execute the TEACH-IN procedure. It is active at HIGH logic level (voltage greater than 10V must be applied). For any further information on using the START and STOP inputs refer to the “5.3 TEACH-IN procedure” section on page 24. -
Page 23: Fault Output Connected To A Relay
SMAX - SSI and analogue EXAMPLE Vdc = +24 V R1 = 47 I = 4.7 mA R2 = 5 k 5.2.6.2 Fault output connected to a relay Figure 4 No encoder error = coil energized Encoder error = coil de-energized EXAMPLE Vdc = +24 V... -
Page 24: Teach-In Procedure
SMAX - SSI and analogue 5.3 TEACH-IN procedure The TEACH-IN function allows to easily and intuitively set by means of two external signals both the furthermost points in the travel of an axis, then the available analogue range will be scaled automatically within the set limits. It allows to programme the encoder by considering directly the physical travel of the application you need to measure and control. -
Page 25: Teach-In Procedure
SMAX - SSI and analogue On the contrary, with descending ramp, before the initial position of the travel the encoder will provide the maximum current / voltage signal level of the output range (20 mA for SMAX-AI1-...; 10 V for SMAX-AV2-...); after the last position of the travel the encoder will provide the minimum current / voltage signal level of the output range (4 mA for SMAX-AI1-...;... -
Page 26: Ascending And Descending Ramp
SMAX - SSI and analogue please refer to the following section for information on defining a ramp with decreasing output values. Move the axis to the origin of the physical travel of the application you want to measure and control; in other words, move it to the point where the travel starts;... -
Page 27: Recommended Current Analogue Output Circuit
SMAX - SSI and analogue NOTE On the contrary, if you activate the START input and then move backward the axis in reverse of the standard direction before activating the STOP input (in other words you activate the START input when the axis is in the final position of its travel and then activate the STOP ... -
Page 28: Diagnostic Led
SMAX - SSI and analogue 6 - Diagnostic LED A LED is installed in the front side of the sensor and is designed to show visually the operating or fault status of the device, as explained in the following table. Description The sensor is running properly, there are no active errors... -
Page 29: Maintenance
SMAX - SSI and analogue 7 - Maintenance WARNING Maintenance has to be carried out by qualified personnel only, with power supply disconnected and mechanical parts compulsorily in stop. The magnetic measurement system does not need any special maintenance; anyway it has to be handled with the utmost care as any delicate electronic equipment. -
Page 30: Troubleshooting
SMAX - SSI and analogue 8 - Troubleshooting The following list shows some typical faults that may occur during installation and operation of the magnetic measurement system. Fault: The system does not work (no pulse output). Possible cause: The scale and/or the sensor are not installed properly (the active surface of the scale does not match the sensitive part of the sensor;... - Page 31 This page intentionally left blank...
- Page 32 12.01.2015 “3 - Mounting instructions” section updated 19.11.2015 General review, mounting tolerances correction General review, “3 - Mounting instructions” section 20.03.2017 updated 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 SMAX-BG series and is the answer not in the manual?
Questions and answers