Lika EM58 PA Series User Manual

Programmable analogue encoder

Hide thumbs Also See for EM58 PA Series:

User manual (60 pages)

page of 60

/ 60
Bookmarks

Quick Links

Download this manual

Smart encoders & actuators

EM58 PA

• Programmable analogue encoder

• Current and voltage programmable outputs

• 24 bit resolution (4,096 cpr x 16,384 rev.)

• Programmable scaling and TEACH-IN function

• Programmable overrun mode

• Solid and hollow shaft versions

• Free-of-charge programming software

Suitable for the following models:

EM5812/16384PA...

•

EM58S12/16384PA...

•

EMC5812/16384PA...

•

EMC5912/16384PA...

•

EMC6012/16384PA...

•

Lika Electronic

User's guide

•

Tel. +39 0445 806600

Programmable encoder

Table of Contents

Preliminary information

Safety summary

Identification

Mechanical installation

Electrical connection

Software and configuration parameters

Default parameters list

•

info@lika.biz

•

www.lika.biz

Need help?

Do you have a question about the EM58 PA Series and is the answer not in the manual?

Questions and answers

Summary of Contents for Lika EM58 PA Series

Page 1 Table of Contents Preliminary information EM5812/16384PA... • Safety summary EM58S12/16384PA... • Identification EMC5812/16384PA... • Mechanical installation EMC5912/16384PA... • Electrical connection EMC6012/16384PA... • Software and configuration parameters Default parameters list 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 4.13 Preset..................................25 4.14 Recommended current analogue output circuit...................25 4.15 Recommended voltage analogue output circuit...................26 5 Software and configuration parameters..................27 5.1 Configuring the device using the Lika Electronic software tool............27 5.1.1 Available pages and commands......................28 5.2 IDENTIFICATION page............................28 5.2.1 COM PORT box..............................31 Device search................................31...
Page 4 Device type................................32 Serial number.................................32 Output type................................32 Version..................................32 Read parameters..............................32 Load default parameters..........................32 5.3 CONFIGURATION page............................33 5.3.1 POSITION box..............................33 Position..................................34 Turns....................................34 Counts/rev................................34 5.3.2 PRESET box...............................34 Preset..................................34 Activate preset..............................36 5.3.3 DIAGNOSTICS box............................36 Encoder travel not valid: counts to be displayed greater than physical resolution between start and stop..........................36 Encoder travel not valid: unable to reach the minimum...
Page 5 Value not valid: preset greater than the maximum position..............56 6 Default parameters list........................58...
Page 6 Subject index 1 – Start teaching............43, 46 Max number of revolutions.........52 Max total counts..............52 2 - Stop teaching.............43, 46 No error................37 Activate preset..............36 Output range..............38 Output type..............32, 38 Carattere non valido............56 Counts per revolution............52 Counts/rev................34 Port..................31 Position.................34 Positive counting direction..........37 Device search..............31 Preset..................34 Device type.................32...
Page 7 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 8 The parametrization and set up of the EM58 PA programmable encoder is achieved through a software expressly developed and released by Lika Electronic. The program is supplied for free and can be installed in any PC fitted with a Windows operating system (Windows XP or later). It allows the operator to set the working parameters of the device and monitor whether the device is running properly.
Page 9 • 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 10 EM58 PA - 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. The best solution to minimize the interference must be carried out by the user.
Page 11 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 catalogue.
Page 12 EM58 PA Mechanical installation WARNING Installation and maintenance operations has to be carried out by qualified personnel only, with power supply disconnected and mechanical parts compulsorily in stop. 3.1 Encoder with solid shaft EM58, EM58S • Mount the flexible coupling 1 on the encoder shaft; •...
Page 13 EM58 PA 3.1.2 Installation using fixing clamps (optional kit code LKM-386) [mm] [mm] [mm] [mm] EM58 PA 50 F7 EM58S PA 36 H7 3.1.3 Installation using a mounting bell (optional kit code PF4256) NOTE In order to guarantee reliability over time of the encoder mechanical parts, we recommend a flexible coupling to be installed between the encoder and the motor shaft.
Page 14 Avoid forcing the encoder shaft; • insert the anti-rotation pin 1 into the slot on the flange of the encoder; this secures it in place by grub screw 2, preset at Lika; • fix the collar 3 to the encoder shaft.
Page 15 EM58 PA 3.2.2 EMC59 PA installation using the fixing plate • Remove the antirotation pin 1 (see the Figure in the previous page); • mount the encoder on the motor shaft using the reducing sleeve 8 (if supplied). Avoid forcing the encoder shaft; •...
Page 16 EM58 PA 3.2.3 EMC60 PA installation using the antirotation pin and the fixing plate • Remove the antirotation pin 1 (see the Figure on page 14); • fix the tempered pin 6 to the rear of the motor; • mount the encoder on the motor shaft using the reducing sleeve 8 (if supplied).
Page 17 0Vdc Power Supply White_Green Shield Shield Case Case 4.2 T12 cable specifications Model : LIKA T12 cable Cross section : 4 x 0.25 mm + 4 x 2 x 0.14 mm twisted pairs (24/26 AWG) Jacket : TPU, extra flexible Shield : tinned copper braid, coverage >...
Page 18 EM58 PA 4.3 M23H 12-pin (counter-clockwise) connector specifications M23H 12-pin connector Male Counter-clockwise 4.4 M12 12-pin connector specifications Male Frontal side A coding 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 19 EM58 PA 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 20 EM58 PA NOTE Encoders with T12 cable output require IF92 converter only. Please note that the configuration parameters of the serial port have fixed values so the user cannot change them. They are: RS-232 serial port settings Value Baud rate 9600 Byte size Parity...
Page 21 EM58 PA Current analogue Voltage analogue output output Figure 1 4.9.1 Fault output connected to a PLC input Figure 2 No encoder error = PLC input Low (0Vdc) Encoder error = PLC input High (+Vdc) EXAMPLE Vdc = +24V R1 = 47  ...
Page 22 EM58 PA 4.9.2 Fault output connected to a relay Figure 3 No encoder error = coil energized Encoder error = coil de-energized EXAMPLE Vdc = +24V R1 = 47          I = 30 mA (current needed to energize a small relay coil) R2 = 750 ...
Page 23 EM58 PA This encoder allows to choose between the following current output range (Output type options = CURRENT): Application range Output range minimum position maximum position 4 mA ... 20 mA 4 mA 20 mA 0 mA … 20 mA 0 mA 20 mA 0 mA …...
Page 24 EM58 PA When the default parameters are set (EM5812/16384PA), increments per each step are as follows: 0.076 mV Output range = 0 V … +5 V 0.153 mV Output range = 0 V … +10 V 0.153 mV Output range = -5 V …...
Page 25 EM58 PA 4.13 Preset Enable preset Preset input is active only when the software function in the ENCODER CONFIGURATION box is enabled (see on page 37); otherwise the hardware function is disabled. It is the same as the Activate preset button (see on page 36).
Page 26 EM58 PA 4.15 Recommended voltage analogue output circuit MAN EM58 PA E 1.1 Electrical connection 26 of 60...
Page 27 5.1 Configuring the device using the Lika Electronic software tool EM58 PA encoder with analogue interface is supplied with a software expressly developed and released by Lika Electronic in order to easily programme and configure the device. The software tool is compatible with the whole series of HM- and EM- programmable encoders from Lika Electronic: programmable encoder with SSI serial output (PS code);...
Page 28 EM58 PA 5.1.1 Available pages and commands In each page of Lika Electronic configuration tool software there is a left navigation bar. In the left navigation bar the following buttons are available:  Identification button: it allows to enter the IDENTIFICATION page in order to search and activate the communication with the device connected through the serial port;...
Page 29 Japanese language. If you click the www.lika.biz link below in the page, you enter the Lika Electronic web site page where the technical documentation and information on the device as well as the downloadable files for installing the software tool are available.
Page 30 EM58 PA Now you are ready to establish the connection to the encoder: press the DEVICE SEARCH button in the COM PORT box. During the connection attempt a blue arrow appears inside the DEVICE SEARCH button. If the connection is established properly, a green tick (√) appears next to the DEVICE SEARCH button and the fields in the ENCODER box are filled with information about the connected device.
Page 31 EM58 PA 5.2.1 COM PORT box In the COM PORT box the following functions are available: Device search After having connected a device to the serial port of your personal computer and turned the power on, press this button to start establishing a communication and allow the program to detect it.
Page 32 ENCODER box and listed above show a question mark (“?”). Load default parameters Default parameters are set at the factory by Lika Electronic engineers to allow the operator to run the device for standard operation in a safe mode. As soon as you press this button the default parameters are uploaded and activated.
Page 33 EM58 PA WARNING As soon as you press this button, all parameters which have been set previously are overwritten, thus previously set values are lost! 5.3 CONFIGURATION page When you press the CONFIGURATION button in the left navigation bar you enter the CONFIGURATION page.
Page 34 EM58 PA Position Output It shows the current position information of the connected device. If type = VOLTAGE, then the current encoder position is expressed in Volts (V); otherwise, if Output type = CURRENT, then the current encoder position is expressed in milliamperes (mA).
Page 35 EM58 PA Separate the integer part from the fractional part using the decimal point (.); decimal comma is converted into decimal point. Default = 0 (min. / max. = see the limit values of the selected output range) EXAMPLE Here follows an example useful to better understand the preset function and Preset and Activate the meaning of the related parameters and commands:...
Page 36 EM58 PA Activate preset Enable preset parameter in the ENCODER This function is active only if the CONFIGURATION box is set to ENABLED. Press this button to activate the preset function. The preset value (it is set next Preset to the item above) will be set for the position of the encoder in the moment when the preset value is activated.
Page 37 EM58 PA No error There are not active errors. 5.3.4 ENCODER CONFIGURATION box Enable analog output Enable analog output It enables / disables the analogue output. If = disabled, then the voltage signal or the current signal are not provided through the relevant outputs +Vout or +Iout.
Page 38 EM58 PA Default = CW (standard) WARNING After having set the new counting direction it is necessary to set also the preset function. Output type It sets the type of the analogue output. Two options are available: VOLTAGE or Output type CURRENT.
Page 39 EM58 PA For any information refer to the “4.11 Voltage analogue output” section on page 5.3.5 RESOLUTION SETTING box The four graphic buttons available in the RESOLUTION SETTING box allow to programme the encoder work mode that best suits the requirements of the specific application.
Page 40 EM58 PA Programming mode: Prog (cyclic ramp): it allows to programme the encoder provided that you know exactly the number of encoder information (counts) for the physical travel of the application you need to measure and control; the travel is defined in a ramp which is then repeated cyclically: as soon as the final position of the travel is reached, then the minimum signal level of the selected range is output to start a new ramp,...
Page 41 EM58 PA Programming mode: Start / Stop (single ramp) Press the button to enter the START / STOP (single ramp) programming mode and activate the relevant functions. In this mode the travel will be defined in a single ramp. The START / STOP (single ramp) programming mode allows to programme the encoder by considering directly the physical travel of the application you need to measure and control;...
Page 42 EM58 PA Output type Output range For instance, if = VOLTAGE; = 0 – 5V; the length of the travel between the 1 – Start teaching point and the 2 - Stop teaching point = 4,096, then the encoder will provide a fixed voltage level of 0 V for the 33 552 384 positions before the origin of the travel (i.e.
Page 43 EM58 PA 1 – Start teaching This button is available only when the Programming mode: Start / Stop (single ramp) is enabled. After having moved the axis to the start position (0 position), i.e. the point where the travel we need to measure starts, press this button in order to bind the first value of the selected output range to the physical position you have moved the axis to (origin of the axis).
Page 44 EM58 PA Programming mode: Start / Stop (cyclic ramp) Press the button to enter the START / STOP (cyclic ramp) programming mode and activate the relevant functions. In this mode the travel will be defined in cyclic ramps. The START / STOP (cyclic ramp) programming mode allows to programme the encoder by considering directly the physical travel of the application you need to measure and control;...
Page 45 EM58 PA Output type Output range For instance, if = VOLTAGE; = 0 – 5V; the length of the travel between the 1 – Start teaching point and the 2 - Stop teaching point = 4,096, then the encoder will provide a voltage level between 0 V at the origin of the travel (i.e.
Page 46 EM58 PA 1 – Start teaching This button is available only when the Programming mode: Start / Stop (cyclic ramp) is enabled. After having moved the axis to the start position (0 position), i.e. the point where the travel we need to measure starts, press this button in order to bind the first value of the selected output range to the physical position you have moved the axis to (origin of the axis).
Page 47 EM58 PA Programming mode: Prog (single ramp) Press the button to enter the PROG programming mode and activate the relevant functions. In this mode the travel will be defined in a single ramp. The PROG (single ramp) programming mode allows to programme the encoder provided that you know exactly the number of encoder information (counts) for the physical travel of the application you need to measure and control;...
Page 48 EM58 PA Output type Output range Encoder HW For instance, if = VOLTAGE; = 0 – 5V; counts = 4,096, then the encoder will provide a fixed voltage level of 0 V for the 33 552 384 positions before the origin of the travel; a voltage level between 0 V (origin of the travel, position 0) and 5 V (end of the travel, position 4,095) for the positions of the axis;...
Page 49 EM58 PA NOTE Please note that in this encoder the maximum number of physical counts per turn is 4,096 (2 ), while the maximum number of physical revolutions is 16,384 ); thus the overall number of information is 67 108 864 (2 ).
Page 50 EM58 PA Programming mode: Prog (cyclic ramp) Press the button to enter the PROG programming mode and activate the relevant functions. In this mode the travel will be defined in cyclic ramps. The PROG (cyclic ramp) programming mode allows to programme the encoder provided that you know exactly the number of encoder information (counts) for the physical travel of the application you need to measure and control;...
Page 51 EM58 PA Output type Output range Encoder HW For instance, if = VOLTAGE; = 0 – 5V; counts = 4,096, the encoder will provide a voltage level between 0 V (origin of the travel, position 0) and 5 V (end of the travel, position 4,095). Then the sequence will be repeated cyclically and a 0-5V ramp will follow a 0-5V ramp;...
Page 52 EM58 PA 5.3.6 ENCODER SPECIFICATIONS box Counts per revolution It displays the number of physical information per revolution the device is able to output (namely, the singleturn resolution: 4,096 cpr -counts per revolution-, i.e. 2 NOTE Please note that in this encoder the maximum number of physical counts per turn is 4,096 (2 ), while the maximum number of physical revolutions is 16,384 );...
Page 53 EM58 PA NOTE Please note that in this encoder the maximum number of physical counts per turn is 4,096 (2 ), while the maximum number of physical revolutions is 16,384 ); thus the overall number of information is 67 108 864 (2 ).
Page 54 EM58 PA 5.4 LOAD / SAVE CONFIGURATION page When you press the LOAD / SAVE CONFIGURATION button in the left navigation bar you enter the LOAD / SAVE CONFIGURATION page. This page allows the operator to save the current encoder configuration to a .dat file;...
Page 55 EM58 PA 5.4.2 Loading the encoder configuration from a file When you need to load an encoder configuration you have previously saved to a file, press the LOAD CONFIGURATION FROM FILE button. As soon as you press the button, the Open dialogue box appears on the screen and the “Starting process...”...
Page 56 EM58 PA 5.5 Error messages (in alphabetical order) Carattere non valido You entered an invalid character or comma (such as , \ / : * ? “ < > |). All the Preset fields only allow integer values (except which accepts also decimal numbers separated by dot or comma -decimal mark-).
Page 57 EM58 PA Preset parameter allows to enter decimal numbers with up to three digits (thousandths); further digits in the fractional part are subject to round-off. Separate the integer part from the fractional part using the decimal point (.); decimal comma is converted into decimal point. MAN EM58 PA E 1.1 Software and configuration parameters 57 of 60...
Page 58 EM58 PA Default parameters list Parameters list Default value Preset Enable analog output enabled Enable preset enabled Positive counting direction CW (standard) Output type voltage Output range 0 - 5V Start / Stop Programming mode single ramp Encoder HW counts Programming mode: Prog 67 108 864 (single ramp)
Page 59 This page intentionally left blank...
Page 60 Ce dispositif doit être alimenté par un circuit de Classe 2 ou à très basse tension ou bien en appliquant une tension maxi de 30Vcc. Voir le code de commande pour la tension d'alimentation. Lika Electronic Via S. Lorenzo, 25 •...

This manual is also suitable for:

Em58s pa Em58 paem58 paEm58 paEmc58 pa Emc59 pa Emc60 pa