Home

LINK Overview

1. M9IAJ9 Q JNIT LINK Overview Instruction Manual for use with SSD LINK Systems Copyright 2009 by Parker Hannifin Corporation SSD Drives Division All rights strictly reserved No part of this document may be stored in a retrieval system or transmitted in any form of by any means to persons not employed by a Parker company without written permission from Parker Although every effort has been taken to ensure the accuracy of this specification it may be necessary without notice to make amendments or correct omissions in this document Parker cannot accept responsibility for damage injury or expenses resulting therefrom Printed in the USA RG350678 Issue 2 Safety Information q PLEASE READ THIS INFORMATION BEFORE INSTALLING THE SOFTWARE Personnel Qualified personnel should carry out installation operation and maintenance of the software A qualified person is someone who 1s technically competent and familiar with the installation process operation and maintenance of this software Procedures in this manual may contam Warnings and Notes A Warning gives the reader the information which 1f disregarded could cause injury or death A Note furnishes additional information for added emphasis or clarity The customer is responsible for assessing his or her ability to carry out the procedures in this manual Make sure you understand a procedure or the precautions necessary to carry it out safely before beginning If you a
2. S mm inches minimum radius Repeater module Cable Damage If the fiber optic cable is damaged in any way transmission distance will be severely compromised Always ensure e The cable external sheath is completely undamaged e The cable is never subjected to tension or other mechanical forces Optical cable is not installed the same way as electrical wiring e g cable ties should not be used to secure cabling and installation personnel must be properly trained in its use If the cable is compressed e g by using cable ties or by walking on it it may be irreparably damaged Transmission distance will be impaired even though the cable appears externally undamaged Composite Cable A composite fiber optic cable is available from SSD Drives This consists of a single fiber with two electrical cables in a single sheath This provides a much stronger cable than the single fiber This cable should be used whenever damage to the fiber may occur This is especially true where the cable runs between enclosures The two electrical cables can be used to power remote SSD LINK network repeater modules part L5206 2 00 LINK Overview 9 Chapter 3 SSD LINK Network Unused Fiber Optic Receivers If there are SSD LINK modules in which the secondary channel is not used the unused fiber optic receiver must be blocked using the block foam plugs provided with the modules or a spare fiber optic plug Failure to block this receiver could cause
3. 12345678 ff numbercreated with Module 1 Config thisiID DAT number Module 2 Contig Module 3 Config Module 4 Configs 12345679 Last project 12345777 8 whichcan be created withthis DO The diagram above shows the project directories within the SSD LINK database The directories are shown as numbers 12345678 onwards which are created by the id dat file when a new project is started The id dat files are totally unique worldwide and are created at SSD Drives when ConfigEd and or SAM are ordered The id dat contains the following information e Database ID or name which appears in the SSD LINK tool scratch pad e Remaining project directory number range 58 LINK Overview Appendix A SSD LINK Database When the id dat files are created the project range the numeric IDs available to that database which can be created is specified and stored in the id dat file If a database for SAM is ordered no project configuration work can be attempted so the supplied project range is empty In brief the id dat file assigns and tracks project numbers unique to its SSD LINK database Since no two projects ever have the same number projects may be moved between databases without risk of accidentally mixing the configurations up If the directories were named manually by the user the potential for conflicts and possibly dangerous results would be great If the entire project range is used up contact SS
4. Chennai 600 096 India Tel 91 44 43910799 Fax 91 44 43910700 Italy Parker Hannifin SPA Via Gounod 1 20092 Cinisello Balsamo Milano Italy Tel 39 02 361081 Fax 39 02 36108400 Singapore Parker Hannifin Singapore Pte Ltd 11 Fourth Chin Bee Rd Singapore 619702 Tel 65 6887 6300 Fax 65 6265 5125 Parker Hannifin Corporation SSD Drives Division 9225 Forsyth Park Drive Charlotte North Carolina 28273 3884 Tel 704 588 3246 Fax 704 588 3249 sales us ssd parker com www parker com www ssddrives com Spain Parker Hannifin Espana S A Parque Industrial Las Monjas Calle de las Estaciones 8 28850 Torrejonde Ardoz Madrid Spain Tel 34 91 6757300 Fax 34 91 6757711 Sweden Parker Hannifin AB Montorgatan 7 SE 302 60 Halmstad Sweden Tel 46 35 177300 Fax 46 35 108407 UK Parker Hannifin Ltd Tachbrook Park Drive Tachbrook Park Warwick CV34 6TU Tel 44 0 1926 317970 Fax 44 0 1926 317980 USA Parker Hannifin Corp SSD Drives Division 9225 Forsyth Park Drive Charlotte North Carolina 28273 3884 Tel 1 704 588 3246 Fax 1 704 588 3249 Your local authorized Parker distributor RG350678 Iss3 10 2009
5. In the example feeds the trigger input with messages at a constant pre set rate of 100mS Hardware Feedback analog input trigger input sampled at an adjustable rate DERIVATIVE FEEDBACK INTEGRAL ENABLE tL M Xk f INTEGRAL NEG FB LIMIT PG LIMIT PID ENABLE POS FB LIMIT PROPORTIONAL SETPOINT PID executes only on feedback events Setpoint n n PID will not execute if events are sent to the setpoint In general trigger inputs of function blocks are specified in the data sheets If no trigger inputs are specified it is assumed that all of the inputs are trigger inputs In ConfigEd application specific blocks such as the speed profiled winder SPW and current profiled winder CPW have their trigger inputs labeled T See function block data sheets for details Forcing Function Blocks to Trigger Sampler function blocks can be used to force other function blocks to trigger in a certain way The following diagram shows two operator station potentiometers connected to a multiplier If input 2 1s adjusted the multiplier output will not be updated since the multiplier input X is the trigger input The multiplier output will however be updated if input 1 is adjusted since it is connected to the trigger input INCORRECT CONFIGURATION Input aa a T7 Operator 45 dd dd D Multiplier station Output cotentiometers 3 mmm Multiplier does not execute if only this pot is adjusted The
6. Is persistant Legends are selected using ordinal data from the switch connected to the annunciator legend input A number of different legends can be programmed to suit the application The theoretical limit to the number of legends that can be selected is 255 The actual total number of legends however will be determined by operator station memory constraints Selecting Highlights Operator station buttons and annunciators may be displayed as highlighted to allow attention to be drawn to a particular function Three operating states are possible for the highlights as shown in the following table The highlights are selected in a similar way by sending ordinal data to the highlight input However the equality between logic and ordinal data can be used to select the highlight on or off as shown Data Highlight Logic 0 Off 0 l On l 2 Flashing n a It is not possible to display the flashing legend via a logic input if a flashing highlight is required an ordinal switch function block is necessary The following diagram shows a logic gate connected to a pair of operator station highlights The inverted output of the gate is also used to drive a highlight 70 LINK Overview Appendix C Configuration Guidelines Operator station E Highlight 2 inputs Logic sender Other SSD LINK systems Logic sender module It is possible to highlight potentiometer and meter function block names in a similar way This can be useful t
7. isis esee DESSEN SUE ER OE jade NER ORO Iu e TE nd spt 28 SSD LINK DATA TYPES saias esso esa Saee aoa eR e Eua aa en Ne PESE Se NE ERERE E S REVO SE EE TERR e eee SN TAS OS Ua TRU UNS 30 lae aTe nme o 30 Logica e e dte deed ovis iie ici e nA Is 31 f UT S e E e e r E e A e ER Ar 31 Accuracy and Resolution with Values ccccccccsscccccccccscccccccccccccccsccsccccsccsccccccscccscesees 31 COMMUNICATION BETWEEN FUNCTION BLOCKS ccccccccccccccccccsccsccsccscccccccces 34 EVENT PROCESSING icccsiccrscesocicrev occarivcsesssscescnepsccsevsoessessstrrtcseccsrscoscrsrecastesrrevesre 35 Event Queue De scriptHonN 2 ccccc2c2ccsccs0ccsccs cccvetsiccccscsossecstosesccescs cccscoscccassct ncscesesecsccseses 35 Trigger Inputs TP TTL IV 35 Forcing Function Blocks to Trigger cococccccccccccccccccc0c0c00c0000000000000000000000000000000000000000000 36 Disconnecting Trigger INPUTS 4 ricco esas cessa aepo sso Ea eue sa so secas aVR PR eU o VF eso aes V ase obird a oes o Gao edes Uo 37 SSD LINK Inputs to a Module Configuration eee e ee eee eee eee eee eee eee ee eee eeeeoeee 37 Timebase Function Blocks 2ioiaceeceeeseeecee boe evo e bos eye ea Ve EV Eee eek ve tintos dice 004460066 eua aua asied 38 Multiple Timebase Function Blocks c ecce ee ee eee ee eee eee ee ee eee see eese eese seseesee 39 Event Queue Overflow iisseeevens V eesv s eoe V esee s eps daa
8. spurious network failure due to ambient light entering the uncovered receiver These failures are extremely difficult to find Repeaters Repeaters are provided to allow maximum transmission distance to be increased Each repeater is mounted in a heavy duty die cast box designed for under floor mounting It is powered from 24V DC and the composite cable is ideal for supplying the power Each repeater has two channels and switchable drive power see data sheet Often the transmission distance between enclosure and desk is not known As a general rule therefore a repeater should be used at the exit and entry of the network to an enclosure or desk as shown below at terminal rail level Processor Operator station Enclosure External SSD LINK fiber cables Use of a repeater in this way creates a convenient fiber optic termination point to allow the external network to connect easily to the enclosures and desks Plastic and Glass Cable If the fiber optic cable run is greater than 60m 195 another option is to convert to glass cable This is done via a special L5206 repeater module part L5206 2 02 which serves to convert between the plastic cable and the glass cable On site termination of the present generation glass cable may be difficult since special tools are required to cut and terminate the cable correctly and safely A correctly terminated and installed glass fiber cable however will allow transmission distances in
9. 1 Location 2 In the latter case we will force any ground currents between the two locations to flow through the shield If these currents are significant this option may not help to reduce interference to the shielded signal CROSS COUPLED GROUNDS Cross coupling occurs when a length of ground conductor is common to two or more circuit loops Any conductor has an associated series resistance and inductance and a current flowing in the conductor will generate a voltage The problem arises from ground currents generated by one circuit causing voltages to appear in series with other signals thus degrading them The following diagram shows an example where an AC ground return is shared by the transducer and amplifier circuits ground line 84 LINK Overview Appendix E Grounding Issues Power Supply Power Supply G G Location 2 Pf um Return currents i AC Power L Load currents Such an arrangement is highly undesirable but could arise from careless or unplanned system wiring The noise voltage Vn generated by the AC return currents flowing through the impedance represented by Rs and Ls appears between the ground connections at locations 1 and 2 This will offset the signal Vs relative to the amplifier input and we will therefore find Vm K x Vs Vn This shows that the amplifier output is corrupted since Vn is not part of the signal we want amplified One solution to this problem is to maintain a
10. CROSS COUPLED GROUNDS ee eee eee ee ee ee eese esses esseseessese sese sese seeeseeeeeeee 84 USE OF A OV BUSBAR TO CONNECT POWER SUPPLIES ee ee ee ee ee eee ee ee eee 86 LINK Overview Cont vii Contents cont This page intentionally left blank viii LINK Overview Chapter Introduction Chapter 1 Introduction WHAT IS SSD LINK SSD LINK is a distributed control system designed for the management and control of motor drives and associated equipment it is also well suited for process control and other operations SSD LINK is event driven in that an event taking place in one module on the network triggers the sending of a message to another module which then responds to the message in an appropriate manner All the modules in an SSD LINK system are connected by a high speed fiber optic cable network which eliminates most of the signal and control wiring present in a conventional system This network may be configured in different ways to suit specific needs see Chapter 77 for information on network topology Simplified SSD LINK System Module within System Fiber optic network Real Time Network RTN Processor Processor Microprocessor with RAM and non volatile memory Operator station Fiber optic network Most modules in an SSD LINK system are software configurable and can perform a wide range of control and processing functions others are more specialized and constraine
11. LED which produces a steady or blinking code as detailed on the following page PT Continuous off indicates the module has no power or has experienced a serious hardware failure Continuous on indicates the module is running eee HM H H H mH HI 1 2 second rapid blinking followed by 1 2 second off indicates the module is ready to start but is unable to send a message to itself around the ring to verify the ring is complete Check for unconnected modules loose connections and unpowered modules HM NEN NN NEN NN NN NN NN NN H 1 2 second rapid blinking followed by 1 2 second on indicates the module is ready to start but is waiting for other modules on the network to become ready to start Check for modules that are stopped or in an error state the system will not run until all modules are ready EES Continuous rapid blinking indicates the module has discovered a duplicate address on the network and has removed itself from the network and stopped If a system has two or more modules with the same address it cannot run Correct the problem by reconfiguring the offending modules One second on followed by a single 1 4 second blink off indicates the module has stopped as the result of a tools request This typically occurs during reconfiguration of the module One second on followed by two 1 4 second blinks off indicates the module is unable to run because it has no configuration Install a configuration using the tools software O
12. LINK modules For OEM customers who are responsible for machine sequencing the application sequencing can be split into two areas e Drive sequencing implemented in the SSD LINK modules e Machine sequencing implemented in a PLC LINK Overview Chapter 5 Planning a System Chapter 5 Planning a System Before an SSD LINK system can be configured the number of modules required to give the desired functionality must be determined Total system functionality can be split into three types e I O interface e Drives e Signal processing With SSD LINK a dramatic increase in system functionality can be achieved This section provides some guidelines to help reduce the amount of engineering effort needed when designing systems SAFETY AND SSD LINK SYSTEMS The SSD LINK system is typically used to control potentially hazardous moving machinery With any control system it is vital to ensure operator safety and the possible effects of failure must be considered to avoid any possibility of injury or damage due to unexpected movement of machine parts It is the responsibility of the machine designer to ensure that a thorough examination of all hardware and software is carried out prior to start up of a system This section gives some guidelines as a starting point for these safety considerations It must be stressed these are guidelines only Each system should be carefully considered in its own right and appropriate standards and regulati
13. blocks available for this purpose Accuracy and Resolution with Values SSD LINK function blocks can be used to perform many signal processing functions In order to maintain good accuracy it is important to keep values as close to full scale as possible as a calculation proceeds The following diagram shows the correct way to implement a multiply and divide function using discrete function blocks FR refers to full range LINK Overview 3 Chapter 6 Configuring SSD LINK Best Accuracy 100 FR 90 FR x 20 FR 50 25 If possible the divide should always be performed before the multiply in order to maximize accuracy but only if the result of the divide cannot result in a value greater than 100 which would saturate to 100 and cause inaccurate results See Section 6 2 4 3 for more information Over Range Allowance There is no over range built into the SSD LINK value number However some form of over range is needed to allow feedback control of a variable when it is operating at full range Therefore over range must be built into the number range when the system is configured For example in the L590 drive 100 current 0 50000 or 50 SSD LINK variable This means that under normal steady state conditions the maximum SSD LINK variable observed is 0 5 or 50 There is however an over range of 50 to currents up to 200 Closed Loop Control Over Range The following diagram shows a load cell tension control loop us
14. configurations and addresses must then be installed using ConfigEd this procedure is covered in detail in the ConfigEd user manual It is important to know the order and the addresses of the modules on the SSD LINK network to avoid installing configurations into the wrong modules In the diagram below the modules on the module list are displayed from top to bottom in the order of fiber optic data flow The top entry in the list is the module to which ConfigEd is connected The bottom entry is the last module on the network 42 LINK Overview Chapter 6 Configuring SSD LINK Drive Address 10 Processor Address 11 Desktop portable computer a CE Module List Analog I O r Address 12 NAME PRO Processor OR NAME DRY Drive OK NAME OPS Op Stn OK Data flow p pes Qu R5232 connection direction Operator Station Address 13 It is best not to connect the computer to an operator station since that connection will cause the operator station to enter its halt state at power up Using Install at Address in ConfigEd automates the selection of the target modules during installation See the ConfigEd manual for more information on installing configurations LINK Overview 43 Chapter 6 Configuring SSD LINK This page intentionally left blank AA LINK Overview Chapter 7 Configuration Procedures Chapter 7 Configuration Procedures This section gives recommended procedures on how SSD LINK configur
15. covers the full range of the input Always use as much of the 0 to 10V range as possible to maximize input resolution The following diagram shows where a 0 to 100 value derived from a low voltage input is required software Analog l O multiplication O 100 O an SSD LINK Analog signal signal 0 2V FSD Analog I O Analog multiplication A O 100 Analog signal SSD LINK signal 0 2V FSD The preferred treatment is to amplify the analog signal before connecting to the analog input If this is not done the resolution and accuracy of the analog input is degraded by the amount of software multiplication required The most common case for amplification is where load cells are required to be interfaced to the SSD LINK analog inputs Two load cell amplifiers are available from SSD Drives e 5530 for strain gauge SG type load cells e 5530 1 for LVDT type load cells USING AN L5201 ANALOG MODULE FOR DIGITAL INPUT It is possible to use an analog input of an L5201 module as a digital input as shown in the illustration on the following page 14 LINK Overview Chapter 4 Hardware Requirements Analog I O Pull down resistor d protects input when switch is open OV busbar The 10k resistor will pull down the analog input to 0 when the switch is open When the switch is closed the analog input will go to 10V 100 Inside the module the analog input can be connected to a Logic Comparator function b
16. ees scan esa Ya Eee eu eaa aea ao Too Fon aaa Yu sari Va gu Uv VadS 39 Events and System Synchronization ecce e eee eee ee eee ee eee eee eee eee sees esse cos sessscoso 39 DIDI IDIOT D CL LUDICRA 40 C4 PITT DUO C I CI ILLI EM 40 INSTALLATION AND STARTUBP eee eee ee eee ee eese sees sees eee se eese sesso ess ese cesse eeeseoe 42 Configuration Procedures CONFIGURATION STORAGE AND SECURITY ee eee eee eee e eee esee ee eese eee se sees 45 Project Ownership and Write Protection 0c0o0cc00c0c0000c00c0000000000000000000000000000000000000 46 DESIGNING SSD LINK SY STEMS ee eee ee e e ee eee eee ee eee ee eee esee esee ee ese se esses oooi 46 Generate Pro OCF couiscicsessessexeVesvene ese vaveee Ve iaiia o es EVA e NUR EN E RES REEF Ee e Tem R Vo ee REN R Ee E E PERPE ER ER EE ORE dad 46 Floppy DISKS sciiiecscccicctssascececsacescdsusscececensesteeesecececesscsesssesdueveseecesesseeseousesescedesascescsesessees 46 Configuration Design c sccccccocccsccecsicrtrecccctscccrsccrcccciccaccrccidescccccoseceercccvccovcrasdccsccvscicscencdcns 46 TESTING CONNECTED TO HUB DATABASE cccccssccscescccscesccsccescccscescsccescescceces 47 LINK Overview CONTENTS CONT Test ProtedUr iiiioiieee ti deret bl SE veg v e ERE VERRE UE NER EF CREER EE UV FUP SUN E EER UR e VENOUS UR eeu NP Seu d aa eua Ou PE RUE 47 Backing Up and Updating ecc ee eec se et eee eoa ea TERR eps ado cadeia
17. files in specific places within the database structure The tools and utilities are designed to allow the database to be handled without resorting to manual intervention via the computer operating system commands The current SSD LINK database requires approximately 10MB of space on the computer hard disk There must be sufficient additional space to allow the database to grow due to e The addition of new and revised function blocks e Updating of the configuration tools e New and updated user configurations and projects SAM AND CONFIGED DATABASES SSD LINK databases are required for both SAM and ConfigEd The SAM database is somewhat smaller than the ConfigEd database since it is not possible to modify configurations with SAM some of the database information is not required THE ID DAT FILE Every SSD LINK database has a unique identifier file known as the 1d dat file associated with it and located in the ssd link database root directory The 1d dat file is used to allow the tools to identify the SSD LINK database When a project is generated within ConfigEd the id dat file allocates a new unique number to that project This number is used as the name of the directory which will contain the various SSD LINK module configuration files ID DAT 484 N DAT created for 100 projects CLASSES Glass Files not present in SAM only applications SONPIGE TEW Initial Configuration Files First project
18. following diagram shows a sampler connected to the multiplier input This will trigger the multiplier and update the output on a regular basis 36 LINK Overview Chapter 6 Configuring SSD LINK Add sampler to force the Sampler multiplier to always execute Ea Multiplier 0 Operator station lt potentiometers _ input 2 23 Disconnecting Trigger Inputs Under certain circumstances it may be desirable to prevent function blocks from executing A special switch function block allows events to be prevented from triggering function blocks as shown in the following diagram Sample rate defined Trigger input by analog input Disconnect Switch t DERIVATIVE Analog input 1 INPUT FEEDBACK SELECT INTEGRAL ENABLE INTEGRAL NEG FB LIMIT Execute PID PG LIMIT Retains last value or PID ENABLE Disable PID POS FB LIMIT PROPORTIONAL Setpoint SETPOINT until block is triggered When this switch is closed input events are passed to the output When open no events can pass through to the PID trigger input This allows the trigger event chain to be broken The switch is opened and closed using a logic input A typical application is one in which it is required to prevent execution of a complex function block chain This could save large amounts of processing time SSD LINK Inputs to a Module Configuration When a module is required to receive data over the SSD LINK network from other modules input slots are requi
19. handler will be cleared allowing the machine to start assuming all other alarms have been cleared Refer to the SSD LINK function block data sheets for more information on the alarms handler If the SSD LINK network is broken it is possible that the break is between the digital module shown above and the display operator station If this happens the reason for the alarm will not be shown since the operator station will shut down The following suggested L5102 operator station configuration indicates how this can be overcome 20 LINK Overview Chapter 5 Planning a System OPERATOR STATION LINK Network Failed MODULE Legend From Alarm Handler Input slot display output Same legend number as network fail within Alarms Handler Es Alarm Handler acknowledge Indicate on network fail Indicate on module shutdown 4 A a 2 Em Network J monitor Disable Restart on network fail True on within system control function block network failure The operator station legend is switched to indicate the SSD LINK network fail condition The switched legend number must be the same as the SSD LINK network fail legend number from the alarms handler Since the SSD LINK system is event driven it is possible to connect the input slot from the alarms handler and the SSD LINK fail switch together The last operation will take priority Forcing Drives to Run at a Slow Speed on SSD LINK Fail Certain applications require some drives within a syst
20. important the above digital module be prevented from shutting down during SSD LINK network failure conditions This can be done by disabling the Restart On Network Fail option in the system control function block in the module configuration file The drive should be configured to Do nothingY when an SSD LINK network fail occurs Active Low Inputs and Safety The L5202 digital I O module operates as an active low device If an input is connected to OV that input is activated INCORRECT ACTIVE LOW WIRING Short activates the a digital input Machine SSD LINK Frame module active low It is common practice to ground the OV of electrical equipment With active low devices such as the L5202 the input will be activated 1f a short occurs between an input cable and ground This could be a safety hazard 1f for example that particular input was used to start a drive It is highly recommended that active high digital modules such as the L5209 be used for digital inputs on safety critical applications If active low modules are used the supply should be isolated within the same system enclosure The OV terminal must not be connected to ground Safety and Senders For safety critical areas of the configuration senders must be used to ensure SSD LINK network data reaches the destination module This is most important for logic data which in general is sent once upon change If for example a push button is pressed a single message may be s
21. on how the SSD LINK modules should be configured into a working system Function Block Data Sheets Data sheets for the currently available function blocks within the database are included with your purchase of SAM or ConfigEd and should be readily available to all design engineers The library is split into various categories to allow LINK Overview 25 Chapter 6 Configuring SSD LINK function blocks to be grouped either by similar functionality or application Those categories may change as the database is updated Application Specific Function Blocks A number of application specific function blocks are available including e Master Ramp e Drive Section Control e Speed Programmed Winder SPW e Current torque Programmed Winder CPW Application specific blocks have the following advantages e They implement very complex functions at high speeds and with minimal memory requirement thus saving module memory e They are already tested and documented e They offer greater performance than discrete function blocks could e They allow standard solutions that are easy to understand and implement It is highly recommended these standard application specific blocks are used to implement applications If your particular application requires additional function blocks not currently available in the library contact SSD Drives The object oriented software allows the rapid addition of new function blocks to meet most customer needs
22. second network bandwidth per segment e Hardware error detection e Hardware fiber optic failure detection and recovery e Optional fault tolerant dual ring The SSD LINK network is based on a ring topology and uses fiber optic cable to transmit the data Each SSD LINK module has one or two network interfaces NETWORK TOPOLOGIES The network is arranged in one of three topologies simple tapped or redundant ring Simple Network Topology This is the most cost effective SSD LINK network topology Each SSD LINK module has at least one fiber optic transmitter red and fiber optic receiver black When the simple network is used the set next to the module s power terminals is used as shown in the diagram This is known as the primary channel TYPICAL SSD LINK MODULE Secondary RTNX Power Processor Processor channel S terminals eei Primary channel P Data flow direction Operator Station Operator Station The data passes around the network in the direction shown by the arrow The network operates by the source module placing data onto the network Data then passes through the various SSD L NK modules until the final destination 1s reached At this point the data is removed from the network Protection is built in to remove messages that pass completely around the network to the source module LINK Overview 5 Chapter 3 SSD LINK Network Tapped Network Topology The tapped arrangement is useful for larger system
23. shows three potentiometers connected to a single clamp Module 5 Output Module 35 Potentiometer slots i EE s bb Total Module 15 setpoint Potentometer eel d Di Db E155 4 VENT Module 25 Value sender Potentiometer Line Speed E dedi Dl b bi In this case the last potentiometer to be adjusted will set the variable The various input and output slots are not shown in the diagram Note the use of a sender to ensure the potentiometer setpoint is updated correctly In fact the value sender will send its data to input slots in three different modules as shown The three potentiometer outputs are connected to the same input slot within module 35 Module addresses shown are arbitrary Potentiometer Scaling Gain Potentiometer function blocks must be scaled to allow the feedback variable to indicate the correct machine units The maximum SSD LINK variable is 1 00 When the potentiometer is configured it is scaled using the Gain parameter This parameter is the on display representation of 1 00 The total displayed number is referenced neglecting any decimal points The decimal point is set with the Format statement within the potentiometer e g 1f the full speed of a machine is 1000 feet per minute FPM this has to correspond to SSD LINK 1 00 72 LINK Overview Appendix C Configuration Guidelines Gain 1000 Format HHH FPM four digits no decimal place The minus sign in the format statement indi
24. the configuration block diagrams SAM can be used to change set up parameters within the modules ConfigEd must be used for all configuration changes Before modifying the configuration use the Update command within ConfigEd to update the affected configurations Backing Up and Updating If the configuration or set up is changed in any way perform the following steps LINK Overview 49 Chapter 7 Configuration Procedures If SAM has been used to modify any set up parameters use the Update command within ConfigEd to update the affected configurations Check the scratch pad to ensure no errors have been generated during the project update procedure If ConfigEd has been used to modify a configuration backup files are produced automatically when the configuration is installed there 1s no need to use the Backup command Export the project in read only form to the customer disk using Manager and replace the customer disk in the enclosure Before Leaving Site After performing the appropriate steps in the previous Section perform the following steps 50 Using Manager export the final modified and backed up project in read only form to the backup disk or local backup disk Using Manager ensure the customer SAM database is up to date Using Manager import the project from the customer disk to the customer s SAM database and replace the customer disk in the enclosure Return the printed configuration drawings and the project con
25. the following diagram Drive Drive Address 10 Address 20 Processor Processor Address 11 Address 21 Name 5207 21 5207 11 Analog I O Name Address 12 2201 12 Data flow direction Name 5102 14 5102 13 Operator station Operator station Address Address 13 Other module naming schemes can be developed to suit the individual needs of the user e g using the application section name Configuration Drawings Configuration drawings are produced through the graphical user interface of ConfigEd All the information to allow the system to be configured must reside in the drawings As with most engineering activities the completeness and accuracy of the configuration drawings will aid smooth completion of the total project ConfigEd incorporates a simple CAD package where the function block diagram is actually drawn on the computer screen When completed configuration files are installed into the SSD LINK modules The screen drawings can also be printed as a part of the final system documentation ConfigEd therefore removes the manual documentation step in the design process dramatically reducing the chance of configuration errors due to mismatch between the block diagram documentation and the module configuration Refer to the user manual for more detail about designing configurations with ConfigEd The following diagram shows a module configuration block diagram This example is for a Tic Tac Toe display for an o
26. 3 from an isolated power supply Another solution would be use a serial line isolator One such device the D240 series from SSD Process Automation provides a high degree of electrical isolation and offers a communications watchdog as well Two general applications to be discussed in the following sections are e Process control and monitoring e Event fault logging and diagnostics Process Control and Monitoring For access to process variables the L5203 supports the BiSynch protocol in the following forms e Binary Master e Binary Slave e ASCII Slave When the L5203 is configured in bisynch slave mode it like all bisynch slaves is controlled by a single master device usually a supervisory computer or PLC When the L5203 is configured in bisynch master mode it controls the bisynch network and commands all slaves For any given bisynch network there can be only one master device The primary difference between the ASCII and binary modes 1s that ASCII being a simpler protocol requires less complex drivers while the more complex binary protocol provides much higher throughput For detailed technical information on the bisynch protocol refer to the SSD Drives document HP022047 For guidelines in developing bisynch supervisory drivers to access the L5203 in slave mode refer to document package HR352424 Finally information on configuring the L5203 in EI bisynch applications can be found in document HR351406 and in the SSD LINK functi
27. 70 or L590 drive manuals for more information on SSD LINK network failure actions Emergency Stop and the SSD LINK Network The SSD LINK network itself can have the ability to operate the emergency stop relay if required under the following conditions e SSD LINK network fail e Normal programmed system alarms 18 LINK Overview Chapter 5 Planning a System Function blocks exist which allow the normal system alarms to be collected and prioritized within an SSD LINK module The following diagram gives guidelines to interface an SSD LINK digital I O module to the hard wired emergency stop system This configuration must be placed in a single digital I O module Other alarms MODULE Output System monitor channel Contact in series with emergency stop stop relay Indicate on network fail Indicate on module shutdown Disable Restart on network fail within Input system control function block channel 4 Approved emergency T To reset stop latches etc Emergency stop relay A system monitor function block is used to indicate an SSD LINK network failure This will cause a digital output to trip the emergency stop relay as indicated The system monitor function block is configurable to allow detection of a number of SSD LINK network faults The default configuration is to detect SSD LINK network failures only Other alarms generated within SSD LINK can also trip the relay via the OR gate If the emergency stop is operated ou
28. D Drives for an updated id dat file Copying the SSD LINK Database WARNING The SSD LINK database must never be duplicated from one computer to another If this is done the id dat file will be duplicated and project corruption will occur SSD Drives will not accept any responsibility for project corruption due to duplicate databases The same problem can occur if a user restores the SSD LINK database from a backup e g after some sort of disk failure If the whole database is restored including all project directories all will be OK But if for example three projects were created since the last backup was made and these directories but not the id dat file are manually preserved future attempts to create projects will fail ConfigEd will try to create the first of those three project directories which already exists To prevent this backup and restore the file system regularly and as a whole unit never only parts thereof Note An on site service call may be necessary for SSD Drives to repair severe database damage resulting from customer failure to adhere to proper handling guidelines In such cases of severe damage it may not be possible to recover the database DATABASE AND PROJECT MANAGEMENT Manager software is used to transfer information between a new or revised database either from a floppy disk or via modem and the configuration computer as well as for deleting and archiving projects These features ensure the user s da
29. General Details of Function Blocks In general a function block has three types of inputs outputs e Inputs which accept data from other function blocks e Outputs which send data to other function blocks e Parameters which are preset data not modifiable during execution of the module Most inputs can also be configured to have a preset state That data will be used until it is changed by a message being sent to that input Thus it is possible to use these inputs as parameters Parameters can be set with ConfigEd SAM may be used to set all inputs and get the current state of most inputs and outputs Persistent Inputs A persistent item is any state that 1s retained in the event of a loss of power Like any other value input or parameter they can be set by SAM ConfigEd or another function block output Persistent items set by SAM will not be lost when the module is powered down This can be quite useful since the last value or state of the persistent input will be restored when power returns Most common inputs to function blocks are persistent and these are usually specified in the data sheets Organizing Configurations The following sections provide some recommendations that should be followed when organizing configurations for an SSD LINK system Choosing Function Blocks When a new hardware module is specified in ConfigEd a configuration appears on the computer screen containing application specific and common software bloc
30. H MODULE ccccccccccccccccccccccccccccccccccccccccccccccccccccces 64 TEST POINTS ai siosasas ias idea auo Di css soa liam 0021000 058525920090200000 012080009096 40 040 00 9 ELE SO EE SUUS 64 MEMORY BLOCKS 2 5 1 5 1 21 1r is2L esae eda eaae sb ao eo caco sacana o Re EPEVERE e lsaUa ss sa re seres eese ee Pese 65 MEMORY SPACE AND THE L5102 OPERATOR STATION cccccccccccccccccccccccccccccccs 65 SSD LINK OPERATING SYSTEM AND MEMORY cccccccccccccccccccccccccccccccccccccccccccccccs 65 What is a Class vis ccccsiccccswsccdccceccswececseccccssccuscccndeedsccsesescecueceduseounedeceweveucccsusesedcesecwssseeess 65 Whatis an Instance eo eve veces Ve eveekh Sous un aba eve uev eu vex p sev equa esu du dy vae ee ECO Sn Sds aaa 65 What is Stored in the Module cccccoccccccoococccco00c0ccc0000c0c00000000000000000000000000000000000000000 65 Appendix C Configuration Guidelines SYSTEM CONTROL e 67 HANDLERS 222440 664066466642460 6460664644 66406684 644 06 RSEN DT aaa id ER ERERERERE EROS ESPERE EUR 67 Operator Station Display Handler c ecce e eee eee ee eee eee ee ee eee see eese eese esee see 68 Alarms Handler essa ees eei eu Sota vb PEN o PRESE PE ENS ORE PP EVER YES EE ERR SE o PER EE SUR TE PER PER ER P ERR UNE en aias nnii 68 E5102 OPERATOR STATION 4 iives ve s u V esae a asa ceara S VERRE SEVERE aS ERE SR ERN NE EAE PA add 69 Memory Lim
31. K Overview 55 Chapter 8 Troubleshooting NORMAL SSD LINK SYSTEM SSD LINK SSD LINK module moduls SSD LINK SSD LINK Direction af module data flow module Using a length of fiber optic cable create a link between non consecutive modules on the network Bypass questionable modules one by one and attempt to restart the system This procedure should be followed until the peer halted module will restart Using this technique the source modules causing the problem can be found SSD LINK SYSTEM WITH TEMPORARY CABLE SSD LINK SSD LINK module module Temporary fiber optic cable SSD LINK np E SSD LINK module module y Normal fiber optic d 47 cable unplugged SSD LINK module SSD LINK module Direction of data flow IMPROPER OPERATION Many SSD LINK function blocks have trigger inputs If a function block is not triggered properly its outputs will not be updated This can bring on a situation where apparently valid configurations do not work Other problems could include incomplete configuration or lack of familiarity with a function block These problems should be detected and corrected as part of the system test procedure performed prior to shipment to the end customer Once the SSD LINK system has been properly installed and commissioned SAM provides a powerful diagnostic tool for system troubleshooting 56 LINK Overview Appendix A SSD LINK Database Appendix A SSD LINK Da
32. LINK project should be handled during the commissioning of SSD LINK systems It is assumed e The backup disk is available or if not a floppy disk is available formatted to 1 44MB for IBM PC and marked with the following information Work order number Customer name Customer site location ConfigEd project number and name e Thecurrent SSD LINK configuration block diagram drawings are available and the ConfigEd project number is shown both on them and on the ConfigEd scratch pad title block e The customer disk is available Obtaining the Configurations To ensure the current configurations are used when modifying systems transfer the project configurations from the SSD LINK Hub database to the site computer The configurations may be transferred from the Hub database using the backup disk or through use of a modem Daily Commissioning If the configuration or any parameter is to be changed in any way during the course of the day use SAM to change set up parameters within the modules ConfigEd must be used for all configuration changes e SSD LINK drives should be commissioned using instructions in their operating manuals and standard procedures 48 LINK Overview Chapter 7 Configuration Procedures e With ConfigEd backup files are produced automatically when a configuration is installed there is no need to use the Backup command If SAM is used to change the parameters of a module then the Backup command must be used fr
33. LINK system is quite robust and often a marginal network can be tolerated for some time without causing noticeable performance degradation It is precisely because of this resistance to errors that special tools are required to ensure optimal performance during commissioning or service Such validation is wise to maximize the system s tolerance to future damage or component aging Cabling problems are most likely to occur with fiber optic cable connecting remote parts of an installation It is important to know the length of cable between each transmitter and receiver that length must be within the transmission range for the SSD LINK module in question Installation trunking systems may introduce extra fiber optic cable length not accounted for in the original network design The possibility of this occurrence should be taken into account when designing an SSD LINK system It is highly recommended that L5206 2 00 repeater modules be used where the SSD LINK network must connect to remote desks or enclosures The transmission range can be adjusted to a maximum of 60m 195 Multiple repeater modules or the L5206 2 02 plastic to glass adapter module should be used for longer runs Special function blocks are available to allow configuration level handling of some network exceptions and problems The function blocks are e Operator station Network Monitor e Logic System Monitor e Watchdog e L5203L Exception Logger For additional information re
34. ain outputs and inputs where signals are routed to and from other SSD LINK modules via the network The following diagram shows the SSD LINK input and output connectors Module address 5 Module address 10 5SD LINK Function Network Function Outputs block block Destination Destination Source module Local module address module slot address module slot Source and destination SSD LINK network connectors are shown At module address 5 data is being passed to module address 10 local slot 35 At module address 10 local slot 35 must be specified correctly The source module address is optional and is used to act as a cross reference for the source of the data ConfigEd can fill in the source module addresses automatically at print time and it is recommended this be done SSD LINK DATA TYPES Decimal numbers are used for all SSD LINK operations and the three main types of numbers within the system are ordinals logic and values Ordinals Ordinals are whole unsigned integers used for counters and enumeration The ordinal number range is at least 0 65535 but may be larger for some module types refer to the module data sheets for details 30 LINK Overview Chapter 6 Configuring SSD LINK Logic These are used for all logic operations The logic range is e 0 Logic 0 False e Logic 1 True Note Logic 0 Ordinal 0 and Logic 1 Ordinal 1 This equality between logic and ordinals is very important when configuring SSD LINK
35. alled e All modules should be checked to ensure satisfactory health status after all configurations have been installed Sufficient tests should be applied to the system to ensure the functionality matches that of the system specification where necessary the configuration files should be modified SAM may be used to aid testing of the system Backing Up and Updating e If SAM has been used to make permanent modifications to SSD LINK module configurations use the Update command within ConfigEd to update all the affected configurations Check the scratch pad to ensure no errors have been generated during the project update procedure e Ifthe configuration files have been modified using ConfigEd during the course of the day export the project in read only form to the backup floppy disk using Manager and store the backup disk in the allocated storage area TESTING NOT CONNECTED TO HUB DATABASE This procedure describes how the configuration files should be handled during the testing of SSD LINK systems It is assumed the test computer e Does not contain the Hub SSD LINK database and is not connected to the computer that does e Contains the up to date SSD LINK database which is not a direct copy of the Hub SSD LINK database and SSD LINK tools If the Hub SSD LINK database is copied there is a risk of future project configuration file corruption Before Testing e Transfer the current configuration files from the Hub SSD LINK database
36. am shows how to properly connect serial parameters in systems where operator station potentiometers are also used LINK Overview 75 Appendix C Configuration Guidelines OPERATOR STATION Potentiometer Pot 45 44 4 setpoint Setpoint SERIAL MODULE Serial link When dealing with distributed parameters the guiding principle is to ensure a parameter s data 1s stored in only one place In the above example the actual data 1s stored only in the serial parameter function block The real setpoint sent to the rest of the system comes from there not from the potentiometer or the clamp Note that in this example the clamp only affects the setpoint as adjusted by the operator at the operator station It does not limit the setpoint coming from the supervisor If that is required a second clamp would be placed on the immediate output of the parameter Both clamps are optional Ordinal Parameters Ordinals in SSD LINK are unsigned whole numbers and ordinal parameter function blocks are used solely to transfer them between bisynch and SSD LINK networks e g no scaling or translation 1s performed Logic Signals Using the bisynch protocol logics are transmitted as 16 wide bitfields using ordinal parameters The Logics Helper function block is used to split and combine the individual bits of the ordinal Refer to the Logics Helper data sheet for more information As was the case with analog data care must be taken when the setting of lo
37. an incoming message If such a function block never receives an incoming trigger message it will remain in a dormant state in the SSD LINK module Accessing an input through SAM which has never received any input will return its initialization state whether persistent or not Execution Times Timing delays within the SSD LINK system can be broken down into two areas e Network message passing delays e Software block message passing delays AO LINK Overview Chapter 6 Configuring SSD LINK Network Delays These are short delays for messages passing over the SSD LINK network For a message passing through a module and not being absorbed the total delay for it to enter and exit the module is about 84uS see Section 3 2 Software Block Delays These are delays within the modules caused by the processing activity within the module The following diagram shows two connected function blocks The delay to execute the first block and pass a message to the second block is between one and two ms AND gate OR gate Ds jx gt _ gt This does Message delay time not include any delays due to event queue activity which is increased with the number of messages connections within the configuration If there are a large number of cascaded software blocks the total delays can be considerable The use of large application specific function blocks is highly recommended since this will cut down on the number of internal connections a
38. ance 2 Instance 3 66 r p V Sub 2 Class Subtractor FEPROM Memory LINK Overview Appendix C Configuration Guidelines Appendix C Configuration Guidelines This section gives some general guidelines in the use of SSD LINK The sample configurations shown often relate to specific modules Further configuration information may be found in the SSD LINK tools manuals SYSTEM CONTROL Most SSD LINK modules contain a System Control block responsible for handling restart options and SSD LINK network monitoring and reporting SYSTEM CONTROL oe The block is configurable to allow the following restart options e Restart on network failure e Restart on module failure e Restart on reconfiguration The restart options can be configured as Enabled or Disabled If restart is disabled the module will not try to restart This is useful if it is important that the module should not shut down on SSD LINK network failure The default set up for these parameters should be Disabled but some initial configurations set them to Enabled The L5203L logger is a notable example in case of a failure it would make no sense to shut down a module and have it attempt a restart at the same time it 1s trying to report the cause of that failure The System Control block can also be used with SAM to examine the state of the SSD LINK network The System Control block acts as a logging device recording the following network errors de
39. ations should be handled during the life of SSD LINK systems Following these procedures will help to ensure systems are properly commissioned and backed up and that no information is lost or corrupted CONFIGURATION STORAGE AND SECURITY The following diagram shows the various computers and floppy disks that may be used for modifying and storing configurations in SSD LINK systems Customer Site SSD LINK system Customer disk RS232 ee Project Local mm disk R If required Site portable comper Customer SAM Project computer Communication via modem or backup disk Config files a Database files Test Department computer if required SSD LINK Hub Database Regular amp proper Company Headquarters off site backups Once the configurations for a system are completed they are registered with the parent Hub database see Appendix A for details which retains the files for security The configuration files should also be backed up on a floppy disk on site and left inside the appropriate system enclosure for easy access in case of equipment failure The procedures may appear complex but the primary objective is to ensure the configurations in the SSD LINK system modules the company Hub database and the customer s SAM computer match exactly This is critical since the configuration information is not stored solely inside the actual modules some is stored on the configuration computer A secon
40. by touching the Pot Meter display The Pot Meter has two feedback inputs e Setpoint for the potentiometer function e Measured value for the meter function In potentiometer mode the digital display indicates the potentiometer setpoint In meter mode the digital display indicates the measured value and the analog display indicates the setpoint and the feedback variable Setpoint POTENTIOMETER 0 MODE Measured Value METER MODE 0 DIGITAL DISPLAY ANALOG DISPLAY Scaling of the Pot Meter is performed in exactly the same way as the individual potentiometer and meter function blocks Both the potentiometer feedback and the meter feedback have to be connected to allow the function block to display correctly Potentiometer and Meter Highlights The text within the potentiometer and meter function blocks can be highlighted m a way similar to buttons and annunciators e g to indicate a particular potentiometer is active The highlight can be set to off on or blinking by sending ordinals to the highlight input L5203 SERIAL MODULE The L5203 is a multipurpose module which provides RS232 and RS422 serial communications between the SSD LINK network and third party equipment As the L5203 s serial ports are not electrically isolated from its power supply care must be taken to prevent ground loops when connecting to other non isolated ports 74 LINK Overview Appendix C Configuration Guidelines One option is to power the L520
41. c switching devices in series with this terminal The coast stop terminal is connected directly to the internal relay controlling the drive start contactor The armature current is quenched before the contactor opens The program stop and coast stop terminals are designed to stop the drive independently of the SSD LINK network The following diagram indicates how the two hardware terminals are used with the emergency stop relay outlined above Delay off contact 24V DC Approved emergency stop relay SSD LINK drive Program stop Coast stop The emergency stop relay contacts are wired to the program stop and coast stop terminals The program stop terminal is operated via a direct contact and the coast stop a delay off contact of the emergency stop relay When the emergency stop relay is opened the drive is forced to program stop The drive will ramp to zero speed using regenerative operation 1f applicable When zero speed is achieved the drive will stop The delay off contact shown should be set to a time which exceeds the ramp to zero time under program stop If the drive fails to stop due to a malfunction the delay off contact forces the drive to shut down via the coast stop terminal Safety and Drive Start The SSD LINK network can be used to start and stop drives controlling potentially dangerous machinery the touch screen operator station can also be used for a similar function As with any electronic industrial
42. cates that is displayed in the potentiometer feedback when a negative number is referenced If this is not present the minus sign will not be displayed If the full speed 100 0 FPM Gain 1000 Format z FPM four digits one decimal place If the full range SSD LINK variable is not 1 00 this must be taken into account in the potentiometer gain term to allow for any over range Full range required display number Full range SSD LINK number Gain This does not include the decimal point When scaling a drive if the full speed setpoint 1s 0 833 and this has to correspond to an indicated top speed of 500 0 FPM 200 Gain 600 8333 For this case the clamp on the potentiometer output must be set at 83 333 The Format would be set at FPM four digits one decimal point Senders and Potentiometers It is important to use sender function blocks for certain variables going to remote modules Since the potentiometer does not store the variable to be adjusted the sender must be placed correctly at the clamp output CORRECT SENDER PLACEMENT Potentiometer Line Speed NN 63 EE d D Value sender OPERATOR STATION Il REMOTE MODULE The clamp is located in a remote module to maximize operator station memory Meters Meter function blocks display the connected SSD LINK variable in two ways on the operator station screen e Digital feedback variable e Analog trend display Measu
43. ccur e A module is halted e A module has a missing or bad configuration e A module crashes f A module has an H high level error e A module fails self test f A module detects a network warning e A network detects a network failure Logic Watchdog The watchdog function block implements a timer function and provides both non inverted and inverted outputs It contains a timer which 1s restarted by the receipt of a message at the input Any kind of signal may be connected to the input the fact of its receipt rather than the information contained in a received message is significant The timeout time is a configuration parameter entered in milliseconds Network Errors and the L5203L Exception Logger The best way to identify transient network faults is to add an L5203L Exception Logger module to the system The network exception handler will report such problems to either a computer or a printer In the example below the fiber optic cable just before module 9 has a transient failure and the resulting messages from the L5203L Exception Logger are shown 52 LINK Overview Chapter 8 Troubleshooting Address 6 Address Address Address Address 11 Address 10 Transient network failure Printer or computer with terminal emulator resulting text shown below Transient case ld 7h 12m 37s 571ms addr 9 Network Warning ld 7h 12m 378 586ms addr 9 OK The SSD LINK system will tolerate network warnings for up to one second If t
44. cond network can be powered down without affecting the main network Redundant Ring Topology The simple networks described above have no fault tolerance If the network is broken or disconnected in some way most data transfer will cease This will usually cause the application controlled by SSD LINK to stop 6 LINK Overview Chapter 3 SSD LINK Network LINK self heals Secondary within module channel Primary channel Operator station Broken Network X X Processor Processor Pp lt j P P P lt C S S S S LINK self heals within module The optional second network can be used to provide enhanced system security as shown in the following diagram The second network is inactive but checked when the primary network is healthy If a break occurs on the primary network the SSD LINK modules on either side of the break route the data via the secondary channel as shown This self healingV action recreates the continuous ring and allows data transfer to continue The redundant ring will also self heal 1f both networks are broken at the same place but the redundant ring topology will repair only a single network failure SSD LINK modules can be programmed to indicate partial or complete SSD LINK network failure e g to allow a controlled machine shutdown Examples of this are given later in this manual The network may also self heal if an SSD LINK module fails However since the module is typically an integral par
45. control system the effect of a single failure should be carefully examined It is quite possible that a single programming error or a module failure could cause drives to start This could cause equipment damage or injury to personnel It is most important that some form of electro mechanical protection be provided to prevent this single failure risk when personnel are working on the machine This could be implemented using the emergency stop system outlined above It is the responsibility of the machine designer to ensure the final machine user is aware of the need to trip the emergency stop before working on the machine There are cases where moving machinery is unguarded and therefore exposed to the operator e g cleaning a machine where the machine may be jogged while mechanical guards are open Operation of the drive hardware stop terminals during machine jog and start should be considered SSD LINK Network Fail and the SSD LINK Drive If the SSD LINK network should fail for any reason it is likely that the drive will lose the ability to communicate with other SSD LINK modules The drive can be programmed to perform a number of actions should network communications be lost e Regenerate to zero speed e Coast to zero e Do nothing If the SSD LINK network fails the action taken should be carefully considered for each specific application These actions are overridden by the hard wired drive stop inputs described above Refer to the L5
46. d CLS files Text associated with test points is stored in the configuration memory It is therefore important to minimize this text to allow maximum space for the configuration If the configuration is very short of space it would be permissible to allocate test points outside the two page limit If in the future the configuration has grown too large to fit the test points can be removed 64 LINK Overview Appendix B Module Memory MEMORY BLOCKS When ConfigEd installs a configuration the following blocks are reported in the scratch pad e Block 1 EEPROM allocation table e Block 2 Persistent data items e Block 3 Patch file e Block 8 Fonts operator stations only e Block 16 Library application specific I O primitives e Block 64 Instructions e Block 128 Configurations instances and classes The number after each block reports the number of bytes free in the last page allocated to each block The most important block for the user is block 128 which contains the actual configuration MEMORY SPACE AND THE L5102 OPERATOR STATION The L5102 operator station module has the least available memory due to the large I O library and the necessary display function blocks It should be used for display and input function blocks only with an absolute minimum of other functions All signal processing and logic functions should be done in other modules SSD LINK OPERATING SYSTEM AND MEMORY SSD LINK uses function blocks loaded into
47. d with a busbar as shown in the diagram on the following page The busbar is normally grounded per standard wiring practice Source of analog signal 24V power supply Analog I O To analog input LL A OV busbar OV busbar ground 86 LINK Overview Sales Offices Australia Parker Hannifin Pty Ltd 9 Carrington Road Private Bag 4 Castle Hill NSW 1765 Tel 61 2 9634 7777 Fax 61 2 9899 6184 Belgium Parker Hannifin SA NV Parc Industriel Sud Zone 11 23 Rue du Bosquet Nivelles B 1400 Belgium Tel 32 67 280 900 Fax 32 67 280 999 Brazil Parker Hannifin Ind e Com Ltda Av Lucas Nogueira Garcez 2181 Esperan a Caixa Postal 148 Tel 55 0800 7275374 Fax 55 12 3954 5262 Canada Parker Motion and Control 160 Chisholm Drive Milton Ontario L9T 3G9 Tel 1 905 693 3000 Fax 1 905 876 1958 China Parker Hannifin Motion amp Control Shanghai Co Ltd SSD Drives 280 Yunqiao Road Export Processing Zone Pudong District Shanghai 201206 P R China Tel 86 21 5031 2525 Fax 86 21 5854 7599 2009 Parker Hannifin Corporation All rights reserved France Parker SSD Parvex 8 Avenue du Lac B P 249 F 21007 Dijon Cedex Tel 33 0 3 80 42 41 40 Fax 33 0 3 80 42 41 23 Germany Parker Hannifin GmbH Von Humboldt Strasse 10 64646 Heppenheim Germany Tel 49 0 6252 798200 Fax 49 0 6252 798205 India SSD Drives India Pvt Ltd 151 Developed Plots Estate Perungudi
48. d as templates for later Jobs Theoretically this approach could eliminate virtually all engineering time associated with configuring additional drive control systems Standard Function Blocks The use of standard application specific function blocks can reduce engineering time considerably For example implementing a closed loop load cell controlled center wind control is simply a matter of using a single function block There are a number of standard function blocks available including f CPW Open loop center winder control e SPW Closed loop center winder control e Section control Draw ratio control with closed loop trim e Master Ramp Implements an S Ramp function with start stop and status logic It is recommended these application specific function blocks be allocated to separate L5207 processor modules to give the best performance and to reduce engineering time Network Addresses and Slots The SSD LINK system uses numeric addresses to allow data to be passed between modules on the network At configuration time in ConfigEd each hardware module is assigned an address from 1 3000 In addition each module can have up to 4095 SSD LINK input slots numbered from 1 4095 specified using ConfigEd A slot can be thought of as a software terminal configured within a hardware module This allows data to be sent to other modules on the network by specifying the address and slot number of the destination module that is to receive the da
49. d in their abilities Currently elements comprising the SSD LINK system include Drives connected directly to motors to control torque and speed Operator stations presenting information to the operator and accepting commands fromthe operator Analog I O modules interfacing with analog signals such as dancer potentiometers and E to P converters Digital I O modules interfacing with digital signals such as push buttons lamps relays and PLCs Serial I O modules interfacing with processor based equipment such as temperature controllers gauges PLCs and ticket printers Interface cards used in supervisory computers LINK Overview Chapter 1 Introduction e Gateway modules providing an interface to other factory networks e Repeater modules used to extend the physical size 1 e the distance covered by the fiber optic cable of the network e Software tools used to configure commission and monitor the SSD LINK system The software tools are designed to run on IBM PC compatible computers and include Manager Setup And Monitor SAM and Configuration Editor ConfigEd Module configurations 1 e operating instructions programmed and installed by the user are composed of function blocks and other elements designated through the use of ConfigEd ConfigEd s graphical interface simplifies the design and implementation of module configurations It and the other software tools also allow the user to install monitor service modif
50. d the SSD LINK DC Drive The SSD LINK DC drive has over range built into the speed demand inputs and outputs LINK Overview 33 Chapter 6 Configuring SSD LINK These I O are scaled e 100 speed SSD LINK variable 0 8333 e 100 speed SSD LINK variable 0 8333 e Conversely 1 0000 in SSD LINK 120 in the drive Internally the drive speed demand is clamped to a maximum of 105 This would relate to an SSD LINK variable of 875 The following diagram shows a drive with a speed setpoint supplied from a potentiometer function block Full Range Line speed 500 0 FPM non reversing All speed Inputs Outputs scaled at SSD LINK 8333 100 speed s SSDLINK drive Clamp Speed setpoints and feedback values Speed Setpoint 83 333 8333 Pot Meter Line Speed 500 0 FPM SAM reads these values as 100 speed Speed Feedback 8333 Display min 0 Display max 100 00 Format FPM The setpoint from the potentiometer function block is clamped at 83 333 full range This yields a motor speed of 100 Once again the feedback for the potentiometer function should be scaled to take into account the 83 333 full range operating point The actual machine number is displayed on the potentiometer e g SOOFPM The Pot Meter scaling functionality will be described later The output of some application specific function blocks such as the Master Ramp is already scaled at 83 333 full range These are intended t
51. dary objective is to ensure sufficient backups are kept of the actual configurations so the current configurations will not be lost should any computers or other equipment fail It is assumed the Hub SSD LINK database contains the latest version of the configurations when work on the project is complete Manager is used to import and export projects and databases and may also be used to delete copies of the LINK Overview A5 Chapter 7 Configuration Procedures configurations from other computers such as a field person s laptop machine to conserve hard disk space on those computers See the Manager manual for details on these procedures Project Ownership and Write Protection An important part of the Hub user relationship is the concept of ownership of projects When a database creates a project that database owns the project and has write access to it That access is represented by a write token If a project is imported or exported in read write mode the write token travels with it to the new destination and confers the right to modify it Write token protection is intended to remove the possibility of multiple copies of the project being modified in parallel leading to conflicting configuration revisions overwritten files and lost work Project ownership is intended to ensure that one copy of the project exists somewhere in a permanent repository from which it cannot be deleted Transferal of project ownership typically occurs when eithe
52. dule and the level adjusted at the sending module to ensure proper light intensity SSD Drives recommends the purchase of a fiber optic light meter by all customers involved in the design of new SSD LINK systems one suitable light meter 1s the 3M Photodyne 18XTA Follow the meter s operating instructions carefully and refer to 8 LINK Overview Chapter 3 SSD LINK Network SSD Drives guidelines part HW351772 for appropriate methods of taking light level readings The T amp B plastic receivers have an ideal operating range of 20 to 31 5 dbm Routing and Terminating Correctly In order to achieve the specified transmission distance the fiber optic cable must be correctly terminated Termination is achieved through the use of special connectors which cut the cable when they are assembled It is vital the assembly instructions are followed closely to achieve the specified transmission range If the fiber optic cables are routed incorrectly the transmission range will suffer Cable runs should be as straight as possible avoiding sharp bends The minimum bend radius for the single plastic fiber cable is 50mm 2 When fiber cables are terminated inside a housing the connection should be direct to the connector unnecessary bends and turns should be avoided For examples of bend radius and routing within a housing see the diagram below INCORRECT CABLE ROUTING Too sharp a bend in cable Repeater module CORRECT CABLE ROUTING 7
53. e e Transfer the configuration files from the test department computer to the Hub SSD LINK database e Modify the configuration files e Transfer the files from the Hub SSD LINK database back to the test department computer before continuing with the test SHIPPING SYSTEMS AFTER TESTING After testing but before shipment of the system the following actions should be performed e If SAM has been used to make permanent modifications to the project use the Update command within ConfigEd to update the affected configurations Check the scratch pad to ensure no errors have been generated during the project update Print out the configuration drawings and place them together with the up to date hardware drawings in the enclosure e Export the project in read only form to the customer disk using Manager and place the customer disk in a secure container mounted inside the enclosure before shipment of the system e Export the project in read only form to the backup disk using Manager and store the backup disk in a secure storage area If the testing computer was not connected to the Hub SSD LINK database add the following steps e Register the project with the Hub SSD LINK database and ensure all current configuration files are present on the Hub SSD LINK database e If desired the project may be deleted from the testing computer using the Delete function within Manager COMMISSIONING SSD LINK SYSTEMS This procedure describes how the SSD
54. e the Manager manual for more information e Ifthe backup disk has not been used to transfer projects to the site portable computer use Manager to export the configurations in read only form to the backup disk and store the backup disk in a secure storage area e Ensure the configurations are up to date on the SSD LINK Hub database before using Manager to delete the project from the site computer SERVICING SSD LINK SYSTEMS This section describes how the configurations should be handled during servicing of SSD LINK systems It is assumed the Hub SSD LINK database contains the up to date configurations and the backup disk and the customer disk are available Restoring Failed Modules If the service visit requires only the replacement of failed SSD LINK modules replace any failed module with the same or equivalent type and then restore the configurations using the customer s SAM database if necessary Obtaining the Configurations To ensure the current configurations are used when modifying systems transfer the project configurations from the SSD LINK Hub database to the site computer The configurations may be transferred from the Hub database using the backup disk or through use of a modem Changing the Configuration or Set Up This section applies if the configuration or set up is changed in any way during the course of the site visit Before any changes are made to the configuration via ConfigEd mark up the necessary modifications on
55. edi cesta dos decal cas OP eaan dep aed 422a 400 sU COD SUIV ea dua CL se V eR v Qoae dias 55 IMPROPER OPERATION eee eee eee eee eese eee eese sees soe ro ese cce coros secos see see cesses sese eseeee 56 Appendix A SSD LINK Database DATABASE DESCRIPTION ccccccccccccooco0c00c00c000000000000000000000000000000000000000000000000000000 57 SAM AND CONFIGED DATABASES ccccccccccccccoccocococ0coc0c0c0c0c000c000000000000000000000000000000000 58 THE ID DAT FILE ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc0cc00cc0ses 58 LINK Overview Cont v Contents cont Copying the SSD LINK Database icccscccciciccicocssceiciodiccscccveccsccodvescvcccicvecccccuiscsscioduccsccevess 59 DATABASE AND PROJECT MANAGEMENT ccccccccccccscccccccccsccccsccccsccsccccsccccscccs 59 PROJECT CONFIGURATION FILES ccccccccscscccccccsccccsccccscccccccsccccscccccccccsccccsccscscs 59 Configuration Files and SAM eee tese sees ee 6006600060666000 Y ev seu sa P VV Ne pF P eV eT coesion Enr 400 C6664606 59 Updating the Configuration Files cccocococc000000000000000000000000000000000000000000000000000000000000 60 Upgrading the Project iocos serre e sao e aae e Ene pR eee YE PESE CHE PE ERES Sen Sa Eo V Ee VR ER PEN SE RENE a VO EVE sacado 61 Appendix B Module Memory THE rZe23Bpp Vv TC o 63 PATCH FILE udi deo des does eo Oo does do eo du O eco eve eco ove Erti 64 HOW MUCH CAN FIT IN EAC
56. em to run at a slow speed under SSD LINK network fail conditions Typical applications are extruder systems where mechanical damage could occur if the drive is stopped should a network fail happen The following diagram gives a suggested configuration Extruder start and run at slow speed Disable Restart on network fail within system control m Configure to Digital 1 O Do Nothing on network fail Short fault free fiber The SSD LINK digital module shown should be mounted close to the extruder drive The length of fiber optic cable between the digital module and drive should be designated fault freeY and suitable precautions taken to prevent damage The digital module should be configured to provide a slow speed setpoint to the drive in the event of failure In this example the slow speed setpoint is switched from a hardware switch connected to a single input of the digital module A sample digital module configuration is shown below LINK Overview 2 Chapter 5 Planning a System Input slot Normal line setpoint C J Output slot j To extruder drive setpoint input Extruder start and run at low speed The drive setpoint must be disconnected from the normal line setpoint using the switch shown Note the use of senders to ensure the start and setpoint are updated correctly A ramp not shown may be required Some logic will also be required to start and stop the drive in response to the digital input It is
57. enever this hardware detects an error lack of properly timed cells malformed packets bad CRCs etc it reyects the data and alerts the module s CPU Low level functions forward the relevant information to the System Control function block in the detecting module the one whose fiber optic receiver detected the errant signal and transmit global network exception messages to all other modules The System Control function blocks in each module receive these messages and collectively maintain a local and global sense of the ring s health SAM may be used to access the System Control function block in SSD LINK modules System Control also performs some event filtering by considering certain locally detected transient errors to be warnings Only when such errors fail to clear in a reasonable time period does system control change the warning into a failure With its knowledge of network state the System Control function block handles the restart operation configured for each module in response to system wide errors and events Upon restart modules rerun their network checks as indicated by their health LED DETECTING SSD LINK NETWORK PROBLEMS Failure in an SSD LINK system may be the result of either damage to or incorrect installation of the network These faults can frequently be attributed to physical damage to the fiber optic cable or improper transmitter launch power for the length of the fiber optic cable run see Section 3 3 1 The SSD
58. ent over the SSD LINK network If this message 1s missed by the destination module the push button operation will be ignored Messages may also be missed due to partial failure of the SSD LINK network such as where damage to a fiber optic cable occurs See the function block data sheets for more information on senders CUSTOM SYSTEMS The following table highlights the way in which the number of SSD LINK modules should be initially planned for custom SSD LINK systems 22 LINK Overview Chapter 5 Planning a System STEP ACTION l 2 3 4 5 6 7 8 Specify number of drives Allow one L5207 processor module per L590 drive Add I O modules L5201 Analog L5202 Digital or L5209 Digital to suit I O requirements Add L5102 Operator Stations to suit operator I O requirements Add one repeater module per remote enclosure desk or machine location Add one repeater for each 50m 165 of fiber optic run Add specialized modules e g L5203 Serial I O L5210 PLC Gateway or L5211 VME Interface as required Add the engineering time The following diagram shows a typical custom configured system with the minimum number of modules specified using the above steps Drive Drive Processor i Processor i Analog I O Operator station Operator station Including one processor per drive allows standard processor module configurations to be used for each drive section of the system These standard configurations will cover al
59. escieceseccscccasccsudesecceacedoscsscevorsebecasescoseesesteecacessrecedessbudessccessedes 15 Planning a System SAFETY AND SSD LINK SYSTEMS cccccccccccccsccccsccccccccccccsccccsccccscccccccsccccsccccsccces 17 Emergency StOD PTT DIC LIO LII LLLI 17 Ihe SSD LINK L590 DrIV6 isi veoco ss v eee a e px Ue ER OVE ave Va CE EN Ee o a EVEN CE ES EN Co e VR EE ERR densa S NUN EE Ea cocada ua USE 17 Active Low Inputs and Safety 24002240000660640600604 006000 0046060400000600 e EV ee P Vena SEE be odes oaasi e UaE 22 CUSTOM SYSTEMS oso YA OP E RR REESE causa eet e eva aae aea aE eaae ateo ea RESTE aS 22 Contents cont Chapter 6 Chapter 7 OEM SYSTEMS ge REN 23 Configuring SSD LINK CONFIGURING SSD LINK MODULES cccccccccccccscccccsccccccccccccsccccccccccccscsccccsccscccs 25 Function Block Data Sheets cccoccsoccscocuc0c000s00006000000000000000000000000000005000000000000u004000000050006000 25 Application Specific Function Blocks ccccccccsscsccsccsccccccccccesccscesccscescesccscesccsccccsscesees 26 General Details of Function Blocks cescescescosconconconconcooscos cos soscossos sos sos ses sos ces cossessossos 26 Persistent Inputs E E E E OEE 26 Organizing Configurations ione ecesteee eee ete ee eee eee Y ERE TRIER E ERES VPE EVER IS EA VER EEP ERIT FEE UP 26 Network Addresses and Slots 1 ecce ee eee eee eee eee eee eee eee eee eee oe esee ee eese esee seeooeee 27 Configuration Drawings
60. ety hazard exists To prevent a potential safety hazard do not connect the module s power common or OVDC signal commons to ground when using a module with active low digital inputs see Section 5 1 3 The L5102 and the L5206 have the OV terminal internally connected to the case which will cause the OV to be grounded The L5209 digital input module uses active high inputs and can be safely grounded Signal wiring Signal wiring should be kept separate from power wiring wherever possible to prevent power transients from interfering with signal voltages and currents Shielded pair or twisted pair conductors e g Belden 8723 UL 2493 should be used for analog signals and serial communications signals Signal wiring should be run in separate wiring troughs or raceways and where power and signal wires must cross route them so they cross at right angles to minimize interference When using shielded cables for sensitive signals only one end of the cable shield will normally be terminated The shield should be left unconnected at the signal source and terminated at the signal destination this is done to prevent currents from flowing along the shield as a result of slightly different ground voltages which may exist at the cable ends and to keep interference to a minimum at the receiving end of the signal For best performance pay close attention to the interconnection of grounds to prevent ground loops and cross coupling as described in detail be
61. excess of 500m 1625 SSD Drives can provide terminated lengths of glass cable or arrange for on site termination if required 10 LINK Overview Chapter 4 Hardware Requirements Chapter 4 Hardware Requirements The SSD LINK system must be installed and wired properly to get consistently safe and accurate operation of each module The guidelines that follow provide general information on power and signal wiring grounding and some specific wiring do s and don ts for particular SSD LINK modules MODULE PRODUCT LABEL Each SSD LINK module carries a product label that identifies all SSD LINK system products except drives drives have their own product code format and should be ordered using that code In either case the full module name and model number must be completed to specify any SSD LINK module The module product label contains three pieces of information about the module the model name Analog I O Processor etc the model number L5201 2 02 L5207 2 00 etc and the serial number Modules already in the field may have the serial number typed on the product label current module product labels have a second label attached with the serial number represented by both a bar code and a row of numerals The following diagram shows a typical SSD LINK module label in this example the label is for an L5201 Analog I O module LINK Parker Model Analog I O Module Model No 5201 2 00 011 4 Serial No 92011 US F 0000 Pa
62. fer to the appropriate function block data sheet LINK Overview 5 Chapter 8 Troubleshooting Operator Station Network Monitor The Network Monitor function block allows the SSD LINK network to be monitored continuously using a single display band in any operator station The diagram below shows the network monitor in use Address 10 Network Failure Address 10 Address 20 monitor Break gt y in fiber Address 11 Address 12 Address 13 To ensure the most recent and accurate state is shown the display for each address is unlatched When each module becomes healthy its indication disappears The display cycles continuously through all pending messages The network monitor is intended to provide the operator with information about the cause of a system shutdown due to network or module failure It may not detect borderline network segments since those warnings can occur and then clear within one operator station screen refresh For diagnosing these and other potential problems during commissioning or servicing the L5203L Exception Logger see Section 8 2 4 is a useful tool Logic System Monitor The System Monitor performs the same function as the network monitor but instead of a graphical display it generates a logic output An example of its use would be to shut down a drive line after detection of a network error The function block may be configured to indicate when one or more of the following conditions o
63. fiber optic network is fixed at 2 7 megabaud If the computer being used is grounded through its power cord and the module through which it connects to the SSD LINK system is also grounded a ground loop is formed and the ground noise produced may disturb the RTNX communications link Both SAM and ConfigEd have built in retry mechanisms to deal with occasional electrical noise but this type of continuous noise will cause error messages and or extremely slow communications between the computer and the attached module In systems with a large amount of electrical noise e g systems containing inverters it may be necessary to break the ground loop to achieve usable communications Breaking the ground loop may be accomplished by Installing a commercially available RS232 isolator module between the computer and the RTNX socket Connecting the computer to the RTNX port of an ungrounded SSD L NK module e g an L5207 processor module connected to an ungrounded 24V power supply Using a battery powered notebook computer rather than a plug in model since most notebook computers are not grounded LINK Overview Chapter 3 SSD LINK Network Chapter 3 SSD LINK Network The SSD LINK modules are interconnected using a high speed digital network with the following specifications e Fully distributed peer to peer communications e Up to 3 000 SSD LINK modules possible on a single network e 2 7M Bits per second data transfer e 12 000 messages per
64. figurations to the project design engineer Using Manager export the configurations to the SSD LINK Hub database and ensure all module configurations are present At this point the write token may or may not be transferred to the Hub database see the Manager manual for more information If the backup disk has not been used to transfer projects to the site portable computer export the modified configurations in read only form to the backup disk and store the backup disk in the allocated storage area Ensure the configurations are up to date on the SSD LINK Hub database before using Manager to delete the project from the site computer LINK Overview Chapter 8 Troubleshooting Chapter 8 Troubleshooting SSD LINK systems feature many powerful diagnostic tools to assist in troubleshooting SSD LINK devices and the network itself This section explains the best ways to find and solve operational problems with the SSD LINK system NETWORK EXCEPTIONS The SSD LINK network passes either data cells or S start stop cells through the fiber optic ring continuously S cells are signals sent through the fiber optic channel to signify the beginning and end of data messages and as filler between data messages At no time will a healthy ring be without a logical transition for more than a few uS A number of tests and constraints are applied in hardware to the incoming data stream to ensure integrity of both the raw signal and the packets received Wh
65. function blocks The tension enable input is shown as a short pulse applied for a time shorter than the function block timebase In this example the tension enable input will not be sampled reliably Multiplier Disconnect switch Input Select Tension demana Triggered Dancer cal at 300mS timebase Dancer loading Timebase Tension enable Event Queue Overflow A module s CPU has a finite processing capacity meaning there is a maximum number of events that can be processed per second If this rate 1s exceeded the event queue may exhaust its free memory pool and the module will generate an L Error This problem is more likely to occur with the L5101 or L5102 operator stations due to the high display processing overhead in these modules Therefore operator station modules should be used primarily for I O procedures with processing being moved to other modules If the module generates an L Error and the event queue has no memory available inspection of Get Info in SAM or ConfigEd will show Out of Heap See the SAM or ConfigEd manual for details on Get Info and its messages If the event queue runs out of memory the solution is to reduce the event frequency This can be done by increasing the timebase parameter of any timebase function blocks The sampler function block can also be used to reduce the event rate as can the decimation filter If a module is close to maximum processing capacity and a compute
66. function blocks those blocks should be placed in processor modules with no other continuously executing function blocks In the case shown below the tension feedback is via load cells which are amplified to produce a 9V full scale analog signal to the analog module inputs In this example 9V full range is used to allow the necessary closed loop feedback over range LINK Overview Al Chapter 6 Configuring SSD LINK L5207 Processor Feedback L5201 Analog I O Rewind i loadcell Spindle A Rewind loadcell L5207 Processor Minimal configuration in analog module Feedback Spindle B INSTALLATION AND STARTUP After the SSD LINK system is designed the configuration files have to be loaded into the modules on the network through the use of ConfigEd Module configurations can be installed to all the modules on the network by connecting the computer to any one of them Each SSD LINK product has a serial number and a default configuration installed during manufacture If needed the serial number can be accessed through the Get Info command in ConfigEd or SAM In general identical modules will contain identical shipping configurations and addresses Despite the duplicate addresses the network will function on first power up unless there are physical problems Modules which do not enter their run state due to duplicate addresses will flash their health LED for more information on module health LEDs see Section 8 3 1 Operational
67. g information e Work order number e Customer name e Customer site location e ConfigEd project number and name found on the scratch pad window title bar when the project is selected Configuration Design The total system configuration should be split up into convenient blocks for allocation to the various SSD L NK modules For multi drive systems the configuration should be split to allow standard blocks which can be easily duplicated Application specific function blocks should be used where possible When any configuration is installed into an SSD L NK module there must be at least two free pages of module memory space If in doubt test questionable configurations to ensure there are at least two free pages by installing to the target module Use ConfigEd or SAM to change set up parameters within the function blocks A46 LINK Overview Chapter 7 Configuration Procedures TESTING CONNECTED TO HUB DATABASE This procedure describes how the configurations should be handled during the testing of SSD LINK systems It is assumed the test computer contains the SSD LINK database or is networked to the one that does and is capable of running the SSD LINK software tools Test Procedure e Power should be applied to the system using standard procedures e The module configurations should be installed to the appropriate modules on the SSD LINK network e Atleast two free pages of module memory should remain when configurations are inst
68. gger see the function block data sheets FILTERS There are three types of filter function blocks available within the function block library the simple filter filter and decimation filter Each has a particular application Simple Filter The simple filter takes the smallest memory space and executes when a message is received on its input This filter has a time constant which is dependent on the input sample time it is required that input messages are sent to the input at a regular rate The filter does not keep track of elapsed time The filter input should be supplied from a constant sampling source such as an analog input or a sampler LINK Overview 77 Appendix C Configuration Guidelines HIE dt t The filter equation is K e Here K is the filter K value dt is the sample time and t is the time constant The following table shows typical values of K for a sample time of 100mS Use Where a constant event rate is present and it is not required to set the time constant directly Time Constant K Value in seconds 0 900 Filter This 1s the most complex filter and takes the most memory capacity Except for keeping track of time between input events it is exactly the same as the simple filter The filter time constant is a set up parameter Use Where memory requirements are not important and it 1s required to set the time constant directly Even though the filter does take account of time between trigger e
69. gic signals is to be distributed This example shows logic output 1 being distributed between the supervisor and two separate momentary push buttons on an operator station Again the key is that the state of the bits 1s kept only in the parameter Its output goes directly to the ordinal input of the Logics Helper function block whose logic outputs are the real logic signals used elsewhere in the system i Link l a Ordinal Paramete SA lE Logics Helper Logic output 1 Input Bit 1 Output E meets Sup nput Bi utpu Input Bit 4 Logic output 2 Input Bit 5 Input Bit 6 Input Bit 7 Input Bit 8 Input Bit 9 Input Bit 10 Input Bit 11 Input Bit 12 Input Bit 13 Input Bit 14 Input Bit 15 Input Bit 16 Ordinal input Operator station module 76 LINK Overview Appendix C Configuration Guidelines This example also demonstrates another important helper function block the button helper Its function is to send its logic output continuously based on the once per press message received from the button When neither button is pressed no output is generated or sent Event Fault Logging and Diagnostics The L5203L can be configured as an output only data logger The data protocol is 9600N81 ASCII CR LF text intended for capture by a serial printer or terminal emulator Printer or Computer with terminal emulator Drive 15203 Module Module serial 59 Logger library module Operator station The L5203L L
70. he warning persists for longer than one second a network failure is declared and modules System Control function blocks will trigger a restart procedure and an LED status alarm Failure case Ld Jn 12m 378 357lms addr 9 Network Warning ld fee 12m 38s 571ms addr 9 Network Failure La TH 12m 38s 594ms addr 9 Shutdown Ld 7h 12m 38s 606ms addr 8 Shutdown If the L5203L Exception Logger is not available it is possible to monitor the individual module system control function blocks using SAM or an operator station network monitor function block However the L5203L Exception Logger is the best tool to use in detecting network warnings L5203 Printer Connections The L5203L configuration is preset to use the RS232 port B transmit terminals at 9600 baud 1 stop no parity These settings may be configured by the user however Connect the RS232 receive line of the printer pin 3 to the port B transmit terminal terminal 9 of the L5203L and signal ground pin 7 of the printer to signal ground terminal 11 of the L5203L Note Some serial devices reverse there transmit and receive lines If nothing is received after hooking up the printer try pin 2 of the printer instead of pin 3 DETECTING MODULE FAILURES Module failures or errors may be diagnosed using the module s health LED or by using SAM or ConfigEd LINK Overview 53 Chapter 8 Troubleshooting Health LED One way to check for module error is to examine the module s health
71. ice configured SSD LINK systems on site All users and customers of SSD LINK systems should have access to a copy of SAM Your purchase of SAM includes a key to enable your computer to run the software ConfigEd ConfigEd allows users to design configurations using a full block diagram graphical interface and install them into SSD LINK modules The key supplied with ConfigEd also allows SAM to be used and SAM is included in your purchase of ConfigEd Communicating With SSD LINK Networks All SSD LINK I O modules are supplied with an RTNX serial port connection similar in appearance to a telephone handset socket for communicating with an RS232 serial port on a computer equipped with either SAM or ConfigEd L590 drive modules and most gateways do not contain these ports and so cannot be accessed or controlled directly from your computer Once you connect your computer to any single SSD LINK module through the RS232 RTNX connection however you will have global access to all modules drives and gateways in that network WARNING Care should be taken to use only connectors adapters and cables supplied or recommended by SSD Drives Since most modules also provide 24vdc power through the RTNX connection failure to use recommended materials can result in severe damage to equipment Communication rates between your computer and the network are selected in the Comms menu in either SAM or ConfigEd communication between SSD LINK modules through the
72. ies for a specific SSD LINK hardware module the library is specified when a new SSD LINK module configuration is created Other SSD LINK Processor module modules have No I O handlers resident I O library EEPROM Reduced EEPROM configuration space configuration space I O Handler Routines The size of the I O library is one of the factors which determines the final memory capacity available for general function blocks The following indicates the size of the I O libraries for the common SSD LINK systems modules e Processor module smallest library e Analog Digital I O average library e Operator station largest library LINK Overview 63 Appendix B Module Memory PATCH FILE This file is used to patch bugs and supply new features that have been added to the main control software in EPROM this avoids dismantling the SSD LINK module to change the ROM or having to swap out many modules EPROM Reduced EEPROM ROM code configuration space FAULTY CODE PATCH FILE I O Handler Routines Execution transfer to and from patch file in EEPROM The patch file is contained in non volatile memory and is loaded automatically by ConfigEd during installation New versions of the patch file may be generated as new versions of the SSD LINK database become available As time passes after a main ROM release the patch file grows in size due to the updates and revisions added When a new ROM is issued the patch file fixes are
73. in the hardware module Otherwise SAM will not work properly The following diagram shows the three files in a local computer database together with an actual hardware configuration File modified when configuration changed with ConfigEd Local database SSD LINK module CONFIGS directory CONFIG 005 These files Files must match generated CONFIG SYM l actual module by ConfigEd 1 w configuration for on installation f SAM to operate CONFIG CLS l without test points It is possible for the configuration files to become mismatched if correct handling procedures are not strictly obeyed The following section suggests maintenance procedures for the configuration files so mismatches do not occur Updating the Configuration Files SAM is used to modify parameters within SSD LINK modules These modifications are not automatically made in the original configuration If that configuration file is again installed into the module using ConfigEd the changes made in SAM will be lost see the following illustration Changes parameters within SSD LINK module SSD LINK module Installation aee overwrites changes ConfigEd 7 Made BY SAM This situation is resolved by using the ConfigEd Update command once work with SAM has been completed This extracts the modified parameters from the SSD LINK module and updates the configuration file in the ConfigEd database so the configuration will contain the new settings 60 LINK Over
74. ing a PID operating at 90 full scale set points The feedback is scaled to 9 0V full scale before entry into the analog input of an L5201 module Scale analog signal AC to 9V FR 90 FR Tension 2S DERIVATIVE FR 50 0Kgf X Load cell FEEDBACK INTEGRAL ENABLE INTEGRAL NEG FB LIMIT 90 FR PG LIMIT PROPORTIONAL SETPOINT Winder drive Tension feedback 9096 FR Tension setpoint 15 3 Kgf 100 100 GAIN 556 CHANGING Tension 100 100 32 LINK Overview Chapter 6 Configuring SSD LINK The PID operates with a setpoint from a Pot Meter function block clamped at 90 full range Scaling the analog input at 10V full scale and reducing it to 90 in software would not give any over range since the analog input SSD LINK value would saturate at 1 00000 The feedbacks for the Pot Meter function should be scaled to take into account e The 90 full scale operating point e The actual machine number to be displayed on the potentiometer e g 50 0Kg 110 Ibs The winder tension loop shown in the above diagram is an example only application specific function blocks should always be used to implement winders Saturation and Filtering With any industrial control equipment it 1s important that internal numbers produced during computation do not saturate The maximum possible SSD LINK value range is 1 or 100 any computations producing results outside this number range will be clamped at 100 Even if the average
75. into a ROM 12 module L5101 and L5102 operator stations are manufactured using ROM 12 BACKUP AND RESTORE The SSD LINK tools support a backup bku file which SAM can restore into a spare module to duplicate the original functionality and parameter settings This means e Customers do not have to stock spares with the same ROM issue as the modules in use as long as the spare module s ROM number is equal to or greater than the original module s the SAM restore function will work e Successive ROM issues offer new and better functionality For example ROM 13 provides improved performance in less space than ROM 12 SAM will prevent restoration of a ROM 13 backup file into a ROM 12 module LINK Overview 8 Appendix D ROM lssues This page intentionally left blank 82 LINK Overview Appendix E Grounding Issues Appendix E Grounding Issues GROUND LOOPS A ground loop is caused by ground wiring which allows ground currents to flow by more than one path between two or more grounded points The result is circulating interference currents caused by magnetic pick up by the wiring loop These currents will induce noise voltages onto adjacent signal wires and result in signal degradation Power Supply Power Supply G G Location 1 Location 2 The diagram above shows a signal Vs generated at Location 1 transmitted through shielded cable and measured as Vm at Location 2 This circuit should realize the function Vm K x Vs Thi
76. itations 2055300 2200002002020 0 006 0695800 N98 ET SER UG EEUU USE GER PRAE R SENE GEL 06406000 SP inc eP uUa E RUE Eg 69 Display Legends and Highlights 1 ecce eee e eee eee ee eee eee ee eee eee eee sees eese eese see 69 Operator Station Potentiometers and Meters ccce e eee eee ee eee eee ee eee ee eee eese se eseeoe 71 Polentiometers 0ieoesiosse ees I osa eso Jousscaccscdsecscelsnsosccssvccsccsuecescescencescwosecesceesecasesecesascesueses 71 E5203 SERIAL MODULE 2264220600660664 eX Sed 606 deve SENE S UNE YE QR E ER UE Uno CEN eV YAT E EE Ve ES FN OV NE T NE tina 74 Process Control and Monitoring cccccccccccccscccccccsccccccsccccccscccccccssccccccsccccsccsccsccccscescecs 75 Event Fault Logging and Diagnostics ce eee eee ee eee eee ee eee ee eee eee censos cocos cos cossacoscos 77 ilhid 77 SIMPle TT IS QE DIL LII I 77 lif vem eH vao nais a 78 Decimation Fier iecore Teese vet eeeevacesuesveveseueseaceQssaeuuedsEavececcesveseesesvatetue eva UVESe ENTE 78 vi LINK Overview CONTENTS CONT TEST ell ppm Nease 78 Appendix D ROM Issues BACKUP AND idypep iqee 0 n 0 nS0 nSnnEtS M 81 Appendix E Grounding Issues GROUND LOOPS 50993 pi 0a one APRES NER EUR UR VR VEU UR VR sata EN VR VE PR MP AS SPARE VAS S PASSVA PAPAS e PAPAS e essei 83
77. ity inputs the less priority each will be given Using many priority inputs could also slow significantly the processing of the normal inputs Timebase Function Blocks In SSD LINK certain specialized function blocks execute and send data at a constant rate They are generally analog processing functions where a group of connected blocks must execute continuously This would be the case for feedback variables for closed loop control With these blocks it is often possible to specify in ConfigEd the timebase or the rate at which data is sent from the output Blocks which implement a timebase are usually specified in the data sheets Examples of these blocks include e Analog inputs of L5201 module e Drive parameters e Samplers e Master Ramp e Senders e S Ramp e Push button ramp Refer to the SSD LINK function block data sheets for details of these function blocks In general there must always be a timebase function block to allow analog function blocks to trigger continuously This is often an analog input Certain function blocks e g the simple filter must be clocked at a fixed rate These blocks are indicated in the function block data sheets Linear Ramp Speed setpoint Clamp i from xl 100 max SW sampler 0 C r 7 HOLD 100791 min d P 100 ms INPUT RATE NEGATIVE CLAMP POSITIVE CLAMP RAMP TIME Ramp to speed _ J RATE CAL RESET Resetramp J INPUT SLOTS OUTPUT SLOTS 38 LINK Overview Chapter 6 C
78. ize module memory requirements the test point text should be kept short Test points could be allocated within the two page boundary of free configuration space if the configuration files become too large in the future the test points could be deleted When SAM is used the test points can be used to set and monitor a variable When test points are defined they may be read only or read write This allows the use of selective test points while preventing unauthorized users from making changes This page intentionally left blank LINK Overview 79 Appendix C Configuration Guidelines 80 LINK Overview Appendix D ROM lssues Appendix D ROM Issues The firmware within an SSD LINK module is given a Module Type ID commonly referred to as the ROM number Standard system modules are either ROM 12 or 13 ROM 13 is the later release and most SSD LINK modules use this version The main differences between ROM 12 and ROM 13 are e ROM 13 modules process connections faster than ROM 12 modules e ROM 13 modules have approximately 10 more free configuration memory e ROM 13 uses an improved startup override system ROM 12 modules power up in a halted state if an active connection was sensed at the RTNX port e Timebase function blocks may be used in all ROM 13 modules while certain ROM 12 modules like the L5201 Analog cannot run them ConfigEd alerts users when attempting to install a configuration containing timebase function blocks
79. ks To set up the configuration function blocks are placed into the on screen representation and the function blocks are then connected both within the module and over the SSD LINK network through the graphical interface of ConfigEd Two names are used to reference each function block e Type name Name as defined in the function block data sheets e g Annunciator e Name User defined name referring to a specific block in that configuration e g Status 26 LINK Overview Chapter 6 Configuring SSD LINK Some function blocks are module specific and may not be used in every type of module Each function block type has a data sheet describing what it does and how to use it Please read and understand the data sheets before attempting to configure function blocks into a system Duplication of Components SSD LINK is a very flexible configurable drive control system As with any flexible system steps can be taken to reduce the amount of engineering time used to configure the system by standardization Many line drive systems consist of a number of identical control sections e g in line load cell controlled nip rolls To save time design one of these sections completely then duplicate it for the additional control sections This approach can be taken further by designing standard module configurations and modifying them to suit the current project It is possible in some cases for Jobs to be duplicated in their entirety and use
80. l line section control and winding unwinding functionality This may seem to be a more costly approach but it has proved cost effective by reducing engineering time OEM SYSTEMS One reason to allocate fewer modules is when there is considerable repeat order business for identical systems It might be worthwhile considering an SSD LINK system that is more value engineered with regard to hardware With such a system time is required to determine the minimum number of SSD LINK modules needed for the actual configuration LINK Overview 23 Chapter 5 Planning a System This page intentionally left blank 24 LINK Overview Chapter 6 Configuring SSD LINK Chapter 6 Configuring SSD LINK Each SSD LINK system consists of modules connected by a high speed fiber optic network The SSD LINK system functionality is in general determined by function blocks contained within the module configurations An SSD LINK function block is a highly defined software object with the following properties e Data inputs e Data outputs e State data e Behavior functions as designed by the system engineer Each of these properties is defined in the applicable function block data sheet Function blocks may be combined in a configuration up to the limit of the target module s memory capacity In general SSD LINK function blocks execute only when messages are sent to their inputs When a message is sent this activity is known as an event Since action
81. ler specifies which function block appears in each of the six bands of the display Memory Limitations The L5102 can handle only a small number of SSD LINK function blocks due to 1ts large display library Itis highly recommended that the L5102 module be used only for operator station function blocks especially when the operator station is used for alarm annunciation where a number of different legends are stored Legend text takes up some configuration memory Display Legends and Highlights The operator station has the ability to select different legends in response to a logic variable The push button and annunciator function blocks allow different legends to be selected in response to an ordinal input derived from a number of sources Selecting Legends The following sample configuration shows the use of an ordinal switch to allow two legends to be selected A latch function block is used to implement forward reverse selection for machine direction The latch is used to toggle the logic variable in LINK Overview 69 Appendix C Configuration Guidelines response to a single push button input The button text will change to indicate the current state The latch function block may be persistent therefore its logic state is stored when the power is off Annunciator or Button Legend 1 Forward Legend 2 Reverse Operator station Other Ordinal sender SSD LINK Logic latch X AUT systems module Latch state Direction
82. lines Operator Legend 1 Annunciator Legend 2 Legend 4 Legend 5 Legend 6 Other SSD LINK Ordinal systems module sender Acknowledge Display output input Alarm channel Legend 2 Alarm output Low air pressure Legend 3 Logic inputs Unacknowledged J P Alarm channel alarm Gut Alarms Handler The annunciator display 1s shown with an alarm present The alarm channels are designed to accept logic inputs and trigger the alarms handler The alarm channels are specified within the alarms handler There are three outputs from the alarm handler The display output is designed to connect directly to the operator station legend input When this output is active the appropriate legend appears and the highlight flashes See later sections for detail about the operator station legends and highlights The sender is necessary to prevent mismatch between logic states in different logic modules The two logic outputs allow alarms to perform various functions such as stopping the machine or sounding a horn L5102 OPERATOR STATION The L5102 is a touch screen operator station designed for local control of a system The module can be used to display and set any type of SSD LINK variable e Logic via push buttons or highlights e Values via pots or meters e Ordinals via pots or meters These various display elements are function blocks loaded into the display handler within the operator station configuration The display hand
83. lock with the 66 99 y input preset to 50 to convert the input value to a logic state See the following illustration Comparator Analog input Digital output PLC amp SUPERVISOR COMPUTER INTERFACE There are several ways an SSD LINK system can interface to PLC and supervisor computers Direct Wiring The simplest and potentially most cost effective method uses direct wiring between SSD LINK digital I O modules and the PLC as illustrated in the following diagram SSD LINK network 5203 Digital 1 O serial module module Hard wired connection for high speed logic signals RS232 or R5422 serial link for accurate parameter transfer setpoints etc LINK Overview 15 Chapter 4 Hardware Requirements 16 This technique is suitable only for the connection of logic signals between the PLC and SSD LINK If it is required to transfer values a hybrid system can be used A digital I O module is used to transfer the logic signals and an L5203 serial module can be used to transfer values Many PLCs and supervisor computers have programmable communications drivers These can be easily programmed to suit the L5203 BiSynch protocol see the L5203 operating manual for details Since SSD LINK is a programmable control system the amount of hard wiring between the PLC and SSD LINK can be reduced For example a single wire connection can be used to start a number of drives the drive start logic can be implemented within the SSD
84. logy sssiisscsceses ses sssaceesccocssescceceessecsseessasedewsscesessessecdeunscesessesessacsesss 5 Tapped Network Topology siissssicssdsscsccciescsccsssanssccensassecdeswasecsesnedessdeeasds ERE RRR ES ER SEP RE ERES OPEN 6 Redondarnt Ring Topology isse ENSE MR eS EVERERE SEN ERR ER AER su aa dado SERRA SERRA AER ERE SES CaS RERUM 6 PREFERRED DIRECTION FOR THE FIBER OPTIC NETWORK e eee eee eee e eee eoe oee 7 CONSTRUCTING THE FIBER OPTIC NETWORK cccccccsccccscccccccccccccccccsccccsccccsccscccs 8 Transmission Distance for Plastic Cable ce Lecce ee eee eee e eee eee e eee eese ee esee esee sees 8 Hardware Requirements MODULE PRODUCT LABEL 5 1 5 50 6e 6 eee eo sene pan dee poe ee osa u nasa spesa see aono eee ses ses sese soones 11 SSD LINK MODULE WIRING 2226006660660006 66 eee eee ee eee eee eee 6666066660660644 see se soe se esses esses esses esso 11 Power SUDDIY ss cscssccsecssssseadasdecsaicecetcasedsscssdessetenscavecssesesecanasendaunenseetsadenncdasededecenesteusiaaess 12 CABLE VOLTAGE DROP 24V MODULES ccccssosscccscccscccsccssccescccsccsccssccssccssccesees 13 SIGNAL ACCURACY AND ANALOG 1 0 cccccccccccccsccccccscccccccccccscccccccccccccscccccess 14 USING AN L5201 ANALOG MODULE FOR DIGITAL INPUT ccccccccsccccsccccsccccces 14 PLC amp SUPERVISOR COMPUTER INTERFACE cccccccccscsccsccccsccccsccsccccsccccscccccccces 15 Dir ct Wiring sa censicscasesnccncccc
85. low CABLE VOLTAGE DROP 24V MODULES Since currents on the order of 1 to 1 5A may be required for each unit it is recommend that you supply modules from power supplies local to the enclosure or desk thus avoiding long cable runs Driving modules over long power supply cables may cause problems related to voltage drop The following table shows the voltage drop per meter of typical stranded cable Cable Size Voltage Drop SWG Volts A m LINK Overview 13 Chapter 4 Hardware Requirements WARNING Under no circumstances should any line voltage supply be connected to any terminal on an SSD LINK systems module The use of 24V and OV common busbars is recommended for the power supplies and the cables connecting the modules to the power supply should be kept short see Appendix E The I O modules may be connected in a small chain providing the voltage drop is carefully monitored The supply range for most 24V SSD LINK modules is 20V to 28V Any voltage supply below 20V will cause module shutdown any voltage above 30V will damage the module In all cases refer to the relevant data sheet before connecting SSD LINK modules to power supplies Additional power supplies may be desirable for modules that are remotely mounted e g an operator station mounted on a panel some distance from the modules it is monitoring SIGNAL ACCURACY AND ANALOG 1 O With an analog interface to a digital system it is good practice to ensure the analog input
86. mine the configuration and consider what system events precipitated the overload Examine related trigger inputs and signal paths and any arrangement or setting that causes an excess of messages to overwhelm the module The reason could be as simple as trying to display six values at 30ms each or as complex as a distributed signal loop causing messages to cascade out of control Consider resetting input rates to a lower rate wherever possible to lower the demand on the processing capability of the configuration A burst of network warnings can also cause L errors in heavily loaded modules use an L5203L Exception Logger to catch these see Section 8 2 4 Display processing tasks occupy a significant percentage of L5102 operator station microprocessor resources Extra attention to potential overloads should be given to these modules High data rates should be reduced using for example the decimation filter Illegal Values Ordinal outputs should not be connected to function blocks having value inputs Such connections can result in illegal values which can generate L errors and cause modules to crash An ordinal to value conversion function block is available and must be used when ordinal to value connections are required Shorting Links A length of fiber optic cable can be used to temporarily short out modules on the network This technique can be used to identify the module causing others on the network to enter the peer halted state LIN
87. mission SSD LINK systems To configure SSD LINK modules function blocks are placed into configurations in a CAD like environment on the computer running ConfigEd The blocks are then connected both to other function blocks in the same module and to other module configurations via the SSD LINK network Refer to the appropriate manuals for more information on these tools Function blocks both new and revised versions are generated by SSD Drives Inc Each function block has a number within the RG35XXXX series and is under SSD Drives engineering revision control Refer to the Function Block Data Sheets for information on the interconnect ability and use of the function blocks The SSD LINK function blocks are found within the SSD LINK database This database must be present to configure SSD LINK systems Not all function blocks may be used in all module types this 1s especially true with SSD LINK drive modules Refer to specific SSD LINK product manuals for more details CONFIGURING SSD LINK MODULES When engineering with SSD LINK a module level rough sketch of what function will be where should be done before starting to load configurations from ConfigEd These provide a ready visual indication as to the function of the SSD LINK configuration The goal is to assign functionality groups of function blocks to specific modules as accurately as possible before starting individual detailed configurations The following section gives general guidelines
88. nd therefore event queue activity The closed loop control winder blocks are optimized for minimal delays in the feedback path It is very difficult to quantify the actual module delay time due to the event driven nature The critical path s should be kept as fast as practical Typically the feedback signal is the critical one SSD LINK Drives The SSD LINK drives operate in a way different from that of general SSD LINK modules Here the whole drive block diagram is executed at a regular scan time The block diagram is fixed and cannot be altered with ConfigEd ConfigEd is however used to configure parameters and assign connections from the fixed block diagram to other SSD LINK modules If output connectors are assigned messages are sent at a regular rate This rate is set when the connectors are assigned Application Specific Function Blocks In order to achieve the best performance from application specific function blocks e g the speed programmed winder SPW it is highly recommended that a processor module be allocated for each drive For optimum response the feedback variables should be provided from analog modules which do not contain any significant configuration If this is done execution times for the closed loop winder function blocks will be on the order of 20mS The analog input sample time determines the winder function block execution time and should be set to 25mS To ensure this performance from application specific
89. ne second on followed by three 1 4 second blinks off indicates the module has stopped due to a low level internal error L error Run module Get Info from either SAM or ConfigEd see Section 8 3 3 If the problem persists contact your service representative One second on followed by four 1 4 second blinks off indicates the module has stopped due to a high level internal error H error If the problem persists contact your service representative One second on followed by five 1 4 second blinks off indicates the module has stopped due to a hardware error Replace the module Module List To determine the cause of a module error attach a computer running either SAM or ConfigEd to the system call up a module list and locate all modules in an error state Causes of failure in an SSD LINK module include e Maximum processing throughput exceeded e Configuration errors 54 LINK Overview Chapter 8 Troubleshooting e Hardware failure The following faults can be diagnosed from the module status Module List Status Possible Cause Action Very slow module list update Fiber damage or incorrect length Truncated Hist Incorrect launch power fiber optic light level at a drive or repeater Wrong software tools baud rate reset to lower Baud rate Errors while updating the list RTNX router module busy plug computer s RS232 cable into another module Broken or damaged module or fiber cable divide and Health status checking netwo
90. nfiguring and wiring any industrial equipment Always obey local electrical codes and regulations and adhere to industry standards when wiring SSD LINK Systems LINK Overview 11 Chapter 4 Hardware Requirements System Power Power Power OV 24V V 24V Isolated Non isolated o Fiber optics Fiber optics SSD LINK SSD LINK module module OVDC common Power Supply The following diagram shows the network fiber optic connections primary channel and secondary channel and power terminals for a typical SSD LINK module The power terminals are duplicated to allow daisy chaining of the 24V and OV power connections The maximum current that can flow through a pair of terminals is 8A Some SSD LINK modules e g drives gateways repeaters and modems may not conform exactly to the above diagram Appropriate documentation should always be consulted before connecting SSD LINK modules MODULE LAYOUT RINX Status LED port Secondary channel Power O lese 24V OV Primary channel O VDC 24 VDC 24V OV 24VPOWER CONNECTIONS Use the module data sheets to calculate the total 24VDC supply amperage required by your particular assortment of modules and then choose a power supply rated for that load In general it is not permissible to connect two or more 12 LINK Overview Chapter 4 Hardware Requirements power supplies together in parallel in an attempt to boost available current capacity This could damage the s
91. o be stored pending processing The following diagram shows three events lined up on the queue Events to be processed Top of queue is i V processed next Event queue AND OR INV m Processor Input change generates an event Es Output is updated Input change Jano when AND is processed The module devotes all unused RAM to the event queue a first in first out FIFO stack Overtaxing a module causes the event queue to exhaust all of this free memory and cause an L Error Out of Heap When an event occurs the following actions take place e The event is posted to the event queue generally to the back of the queue e When the event reaches the front of the queue it is removed and the relevant software block is processed to produce its outputs e If the outputs are connected to other function block inputs as 1s normally the case this may create other events Trigger Inputs below an analog input Each function block has one or more trigger inputs special inputs which allow the function block to be executed when messages are received If no messages are received at the trigger input the function block will not execute It is important to connect trigger inputs correctly LINK Overview 35 Chapter 6 Configuring SSD LINK A PID function block with a trigger input is shown below It is common for the feedback value to be the trigger input Any messages on the feedback cause an event to be generated and execution of the PID
92. o be used as speed demand variables for drives SAM automatically displays these variables normalized to 100 SAM and SSD LINK Numbers When using SAM to access parameters in an SSD LINK system those parameters will be presented scaled to their full range value For most values 1 0 100 but for some parameters this may not be the case e g Drive Current 1 0 200 Drive Speed 1 0 120 etc COMMUNICATION BETWEEN FUNCTION BLOCKS Function blocks are connected using ConfigEd to form the total module configuration Blocks in different modules are also connected together over the SSD LINK network To specify connections the outputs of function blocks are always connected to specified inputs In ConfigEd input connections are always drawn from source to destination The following diagram shows typical function block connections both within the local module and over the network 34 LINK Overview Chapter 6 Configuring SSD LINK PID Remote network connection DERIVATIVE 10 39 FEEDBACK INTEGRAL ENABLE i INTEGRAL Destination Destination NEG FB LIMIT address slot PG LIMIT PID ENABLE i den nied Function block PROPORTIONAL Internal SETPOINT connection EVENT PROCESSING SSD LINK is an event driven system not a scan based system as found in PLCs Event Queue Description The microprocessor within each module performs one task at a time Therefore an event queue is used to allow events t
93. o indicate that a particular meter is active for example Operator Station Potentiometers and Meters The potentiometer and meter function blocks allow any SSD LINK variable to be adjusted or displayed As with any operator station function block these function blocks are loaded into the display handler to determine their position on the display These function blocks allow the variable to be formatted correctly and displayed in engineering units Using ConfigEd the text on these function blocks can be changed to suit the application Text can be highlighted as well in a way similar to buttons and annunciators Potentiometers Potentiometer function blocks are used to raise and lower an SSD LINK variable There is a single output to change the connected variable and a single feedback input to display the variable The feedback variable must be connected for the display to change Basic Use of a Potentiometer Whenever a potentiometer function block is used it is recommended that its output be clamped using the clamp function block The clamp allows the variable to be restricted to allow for over range as described in earlier sections The following shows a potentiometer with a clamp function block on its output Setpoint Incremented output Potentiometer d bei 45 lt setpoint Input value to be changed LINK Overview 7 Appendix C Configuration Guidelines It is important to note a potentiometer output doe
94. of a value is less than the saturation limit it is possible for ripple components to cause saturation The diagram below shows the effect of saturation on an SSD LINK value The function blocks are used to provide a 100 draw feedback to any operator station The actual draw range is 5 and therefore this must be multiplied by 20 to achieve the correct range to drive the operator station display Multiplier 100 To operator station Correct value if no _ clipping occurs TH Incorrect value due to saturation The actual steady state draw on the output of Draw 1 is within the specified range but the draw may exceed this range occasionally This gives rise to considerable ripple on the actual draw feedback Filtering is required in this application in order to give an accurate steady state draw indication The position of the filter is important to prevent saturation of the intermediate value If the filter is positioned at the end of the function block chain as above the intermediate variable will saturate due to the ripple causing the filtered value to indicate an incorrect value lower than actual As shown in the diagram below the solution is to filter the raw draw before the multiplication Filter Draw 1 Multiplier 1000 ms 100 To operator station Since the raw draw value is filtered before the multiplication the actual value to be sent to the operator station display will not saturate Over Range an
95. ogger configuration will generate f Description of all detected network exceptions e Configurable message in response to an event e Configurable message in response to a logic edge or message e Configurable message in response to a value message e Configurable message in response to an ordinal message Description of detected network exceptions is the logger s default behavior and no setup beyond that for the serial port is needed The L5203L logs module state changes throughout the system whether during startup shutdown reconfiguration failure or when even transient fiber optic problems occur Transient problem detection is very effective in 1solating bad fiber optic cable runs as the message logs the exact address of the module detecting the poor signal at its receiver The remaining functions are used by creating and configuring the appropriate function blocks and connecting standard input connectors to them Note that unlike the exception logger which receives globally addressed information sent by default by all modules the event and data loggers must receive their inputs via standard connections This necessitates some configuration at the source as well All logging function blocks may be configured to include a time stamp in their text Current SSD LINK modules have a sense of elapsed time since their last start up which is very useful in recording the temporal relationship in the logged events For more information on the L5203L Lo
96. om SAM or Update must be used from ConfigEd Backing Up and Updating If the configuration or set up is changed in any way during the course of the day perform the following steps e If SAM has been used to modify any set up parameters use the Update command within ConfigEd to update the affected configurations Check the scratch pad to ensure no errors have been generated during the project update procedure e If ConfigEd has been used to modify a configuration backup files are produced automatically when the configuration is installed there is no need to use the Backupcommand f Using Manager export the project in read only form to the customer disk and replace the customer disk in the enclosure Before Leaving Site e After performing the appropriate steps in Section 7 6 4 perform the following steps f Using Manager export the final commissioned and backed up project in read only form to the backup disk or local backup disk Using Manager ensure the customer SAM database is up to date e Using Manager import the project from the customer disk to the customer s SAM database and replace the customer disk in the enclosure e Return project configurations to the project design engineer via backup disk local backup disk or a modem e Using Manager export the configurations to the SSD LINK Hub database and ensure all module configurations are present At this point the write token may or may not be transferred to the Hub database se
97. on block data sheets Communications Speed The EI bisynch protocol transfers information at a relatively slow rate frequently 9600 bps yielding approximately one parameter every 20mS While the L5203 can communicate up to 57600 baud this speed must be downgraded to the highest common rate supported by all devices on the bisynch network typically 19200 baud At any rate below this EI bisynch should not be used for even medium speed control parameters Further SSD Drives recommends that closed loop feedback and cascaded line drive setpoints not be transferred via bisynch if they are it will be nearly impossible to maintain accurate drive control while ramping Similarly high speed logic signals such as drive start and jog are often inappropriate for transfer via bisynch In general EI bisynch is suitable for e Transferring setup parameters setpoints recipes etc e Transferring low to medium speed Logic signals forward reverse mode etc e Monitoring and diagnostics at low speeds Both the baud rate and the size of the parameter set affect throughput and some allowances can be made under the binary protocol if high baud rates can be used to transfer only a few parameters Thorough testing of functionality and performance is always a must Distributed Parameters The L5203 module is often used to allow supervisory computers or PLCs to set system parameters which are also accessed using L5102 operator stations The following diagr
98. onfiguring SSD LINK This diagram shows a typical line setpoint generator for one or more drives and associated configurations A 100mS sampler ensures the linear ramp is triggered on a regular timebase Any function blocks in this or another module supplied from the ramp output will now be triggered if the connection is to their trigger input s Multiple Timebase Function Blocks Complex software blocks may have a number of internal timebase parameters triggering at different rates as specified on the data sheets Multiple timebases can help yield high overall performance for critical areas of application specific function blocks In the complex winding blocks for example the critical performance area is the closed loop control and inertia compensation functions All diameter calculation and tension demand processing is performed at a slower timebase rate This allows more processor time to be allocated to servicing the feedback loop at a fast sample rate The timebase parameters may be set to quite long values Within SPW for example the diameter calculation is performed at a default of 300mS intervals If non trigger variables are sent to blocks which operate on a timebase the data must be applied to the inputs for at least the triggering timebase length If this is not done the data may not be sampled Sending them more often is wasteful and does not improve performance The following diagram shows a simplified part of the complex winder
99. ons should be followed The SSD LINK network should not be used to implement an emergency stop since if a failure occurs the emergency stop may operate in an unpredictable way Emergency Stop An effective emergency stop system is important to avoid equipment damage and injury to personnel should the process or the control system fail A typical emergency stop system would consist of approved mushroom head push buttons placed at strategic intervals around the machine to be protected Pushing any of these buttons should stop the movement of the machine in a highly defined manner satisfying the appropriate safety standards The following diagram shows a typical emergency stop relay design Emergency stop buttons Normally open Reset button emergency stop relay contacts LL pproved emergency T T stop relay The emergency stop relay should be of an approved design to ensure reliable operation The emergency stop relay contacts are used to provide predictable machine operation when the buttons are operated The SSD LINK L590 Drive The L590 drive has hard wired terminals for connection to the emergency stop relay as outlined above Two terminals are used which have the following function e Program Stop Forces the drive to ramp to zero speed at a pre defined rate and predefined torque limit LINK Overview 17 Chapter 5 Planning a System e Coast Stop Forces the main contactor of the drive to be opened There are no electroni
100. ools manuals for information on creating and maintaining the database and projects WARNING The SSD LINK database must never be copied from one computer to another If this is done the id dat file will be duplicated and project corruption will occur SSD Drives will not accept any responsibility for project corruption due to duplicate databases The tools are also supplied with a cable to allow connection of a serial port on the computer to the RTNX connection similar in appearance to a telephone handset connection on the SSD LINK module WARNING Do not use any connectors adapters and or cables other than those supplied or recommended by SSD Drives Failure to use recommended materials can result in severe damage to equipment and injury to personnel and will void the SSDDrives warranty The software tools are supplied on 3 5 disks and installation is provided through the Manager program also included on the disks Windows 3 1 or greater Manager SAM ConfigEd SSD LINK Desktop portable module network computer User supplied optional RS232 isolator LINK Overview 3 Chapter 2 Computer Tools Manager SAM Manager allows users to import export archive and delete projects and import databases Manager is required to install SAM and ConfigEd as well as to install new and revised databases Manager is included with the purchase of either SAM or ConfigEd SAM allows users to commission test backup restore and serv
101. perator station which is a training exercise included in the ConfigEd package 28 LINK Overview Chapter 6 Configuring SSD LINK Tour Tuis Prod Do Minie LEGEND LES LEGEND Syke Lez harp BITTON BAND 56 ER Various signal inputs and outputs on the block diagram are shown It is recommended that the general signal flow should be from left to right with the SSD LINK network inputs and hardware inputs on the left of the drawing and the SSD LINK network outputs and hardware outputs on the right SSD LINK can be used to create complex sequencing and control systems It is good practice to annotate the function block diagrams with text and even drawings ConfigEd provides the tools needed to annotate these diagrams Annotation is especially important if the project is to be commissioned and serviced by a third party engineer Complex sequencing should always be annotated to indicate the significance of a particular logic state See the example below Annotation N 10 Speed setpoint from pot It is highly recommended that you include a form with your configurations as shown in the following diagram LINK Overview 29 Chapter 6 Configuring SSD LINK This allows important information such as the revision number to be present on the printed drawings making it easier to trace a project as part of a quality system Refer to the ConfigEd manual for more information on forms SSD LINK function block diagrams cont
102. r e The creating user database calls in to its parent Hub through a modem registers the project with the Hub and transfers ownership of and the token for that project to the Hub e Two Hubs sharing an archive move the project via the archive process Movement of the write token must not be done casually a decision must be made as to where the token legitimately belongs The project should only be modified by the holder of the write token See the Manager manual for more information on project ownership and the token DESIGNING SSD LINK SYSTEMS This procedure describes how the SSD LINK systems are designed and how the configuration files are handled in the Hub database SSD LINK system hardware should be designed according to industry standard procedures and hardware drawings should be produced to allow the system to be built and documented Generate Project A new project should be generated in accordance with instructions in the ConfigEd manual and when completed logged in to the Hub computer database This will ensure all projects can be referenced at the Hub database for future support All project data should be filled in correctly to ensure the correct information appears on the configuration drawing prints Floppy Disks Two floppy disks should be generated one labeled the customer disk the second the backup disk The disks should be size 3 5 1 44MB and formatted for IBM PC Each disk should be marked with the followin
103. r is connected to its RTNX port the module may generate an L Error Connection of the computer is the equivalent of adding events to the queue which may be enough to cause a shortage of processing capacity If this occurs move the computer connection to another module Events and System Synchronization Depending on the configuration some SSD LINK messages are sent only when a change of data occurs this is particularly true for logic messages It is therefore possible that data in a multi module SSD LINK system can become mismatched There are a number of ways in which data mismatch can occur including LINK Overview 39 Chapter 6 Configuring SSD LINK e Power failure of part of the system asynchronous start up e Modifying part of the system with SAM e Network communications error To prevent any mismatches a sender function block is used for logic outputs transmitted over the network Module 1 Module 2 Logic Logic gender Logic 1 C AND gate Logic 1 AND gate Sender updates data every few seconds A sender has one input and one output When a message is received at the input it is immediately passed to the output However when no input messages are received the output sends the data at a slow background rate of every two seconds this is known as a lazy update In general senders should be used for all data sent out over the network which is not timebase triggered Since logics are normally sen
104. r to use a handler the following procedure should be adopted 1 0 Create the individual channel function blocks which must have unique names Even if the channel location is not being used a unique function block of the proper type must still be created e g blank annunciators 2 0 Create the handler function block if required some exist by default 3 0 Allocate in the handler the channels defined in step one It is most important that valid handler channels are available in the list of function blocks before attempting allocation within the handler In ConfigEd both the handler and its channel function blocks appear in the module function block window see operation station examples in Chapter 6 The digital module I O handler is used to specify the placement and type of I O allocated to the hardware terminals It is recommended that any spare digital I O be defined as inputs As with any handler there must be the same number of digital function blocks as required by the handler Alarms Handler This function block allows multiple alarms to be handled It produces logic outputs and an ordinal output to drive an operator station display The following diagram shows an alarm handler in use together with an operator station annunciator Each alarm channel is associated with an operator station annunciator legend There is a default legend Legend 1 that is displayed until an alarm is present 68 LINK Overview Appendix C Configuration Guide
105. re unsure of your ability to perform a function or have questions about the procedures listed in the manual contact Parker SSD Drives customer service at 704 588 3246 WARNING This software is used specifically to configure the control of potentially dangerous motor control The user assumes all liability and risk for the performance application and reliability of all control systems configured with this software It is the users responsibility to understand thoroughly and to check independently all configurations before commissioning any equipment controlled by this software Parker SSD Drives accepts no liability for the application of the software LINK Overview LINK Overview Table of Contents Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 LINK Overview Introduction What is SSD LINK sisssssccccscssscssscscccsscccsccccccvsccvscscccvevcssscsevccscccsvscscccssccssccsecssscscheusr 1 Computer Tools SSD LINK Configuration Tools aree eee eon andae oe eo dan apa epa se oo en aeneo e voces ene 6066006660 6600 3 te Tg To o 1 PATET I TITEL T DILDO AR E ILS DELI 4 EY NNI 4 CORPIGE EA E AAA DE O e e R ree E e A R n 4 Communicating With SSD LINK Networks ccccccecocccccccccccccccococococ0c0cc0ce0c00e00000000000000000000 4 SSD LINK Network Network TODOIOGIES s 2cc2401ci022404040200040404000000000040000000000000600044000a00400000000000 400004 VER oooi 5 Simple Network Topo
106. red Value 10096 0 100 DIGITAL FEEDBACK ANALOG DISPLAY The meter feedback is connected to the measured value input The digital feedback variable is scaled in exactly the same way as the potentiometer feedback variable using the Gain parameter The analog trend display has two set up parameters These LINK Overview 73 Appendix C Configuration Guidelines specify the displayed full range of the metered input variable and the overload lines The full range value in percent of the input variable should be entered into the Display Max and Display Min parameters The overload lines are set such that the values of Display Max and Display Min are used as full range deflection for these lines When the analog arrows exceed the Display Max or Display Min line values the arrows turn white Display min Display max Speed Feedback 48 4 DIGITAL FEEDBACK ANALOG DISPLAY For the example above when the full range feedback for a reversing drive setpoint is 83 333 the Display Max and Display Min are set to 83 333 If the overload speed was 50 of drive full speed the Max and Min values would be 03 333 x 90 D 41 666 100 41 666 Min and Max If the drive was not reversing the Display Min would be zero Pot Meter Function Block The Pot Meter function block combines the functionality of separate potentiometer and meter blocks into one display band There are two display modes potentiometer mode and meter mode selected
107. red to receive this data The input slots are specified with a slot number unique within each module s configuration during configuration There are two types of input slots which can be specified from ConfigEd normal and priority Normal Input Slots Normal input slots are the standard input slots They should be used for almost all data inputs from the SSD LINK network to the configuration When a message is received to a normal input slot an event is generated which is placed on the event queue in the manner described in earlier sections Processor STANDARD MODE Event queue AND INV OR1 OR2 Event posted to Normal SSDLINK back of queue connection Input event T 5 20 Input slot AND 2 LINK Overview 37 Chapter 6 Configuring SSD LINK Priority Input Slots Priority input slots are used for special time critical applications They are typically used when functions are distributed across modules but must respond as though they were located in the same module When a message is received to a priority input slot an event is generated which is placed at the front of the event queue This forces the message to be executed very quickly Other events already in the event queue are delayed by the priority message PRIORITY MODE Priority SSD LINK Event posted to connection Input event Input slot front of queue Restricting the number of priority inputs 1s wise since the larger the number of prior
108. rk conquer by repeatedly splitting ring s in half until the problem module or cable length is singled out Can happen when configuration installations fail cycle Health status halted power supply or restart using tools Replace module if problem persists A One or more other modules have the same address as this Health status duplicate address module reconfigure install restore as needed Health status No Config No valid configuration install or restore configuration N Waiting for another module to start check all modules in RCA MLS peer Ralted any of the other halted states for Their health status High level error reinstall configuration check data from Get Health status H error Info for major function block s Low level error review configuration perform Get Info Health status L error using tools Cycle power or restart as a temporary work around L Error Failures Mistakes in configurations somewhere in the system are the most common causes for L error messages though the state is an all encompassing runtime error The first step is to perform a Get Info on the problem module in either SAM or ConfigEd The processor s stack will be displayed for the module in question Module Overload If the Get Info stack trace mentions any error related to Out of Heap then the module s processing ability not related to the size of the configuration 1s probably being exceeded The solution to this problem is to exa
109. rker Hannifin Corporation SSD Drives Div 9225 Forsyth Park Dr Made in USA Charlotte North Carolina 28273 The complete product model number should be specified when ordering an SSD LINK module it follows the format L5XXX Y ZZ This number may be followed by an issue number which designates the manufacturing revision level e g ISSUE 2 for that type of module The model number consists of the following three parts e Product Number L5XXX Identifies the type of module e g L5207 processor e Network Option Y A single digit code specifying either just a primary 1 or both primary and secondary 2 fiber optic rings The default build standard is a module with both primary and secondary rings e Hardware Number ZZ A two digit code relating to any hardware builds included in the product e g 02 SSD LINK MODULE WIRING The diagram below illustrates the two different ways SSD LINK modules can be wired into a system The module on the left 1s isolated with respect to the system ground and 0VDC references and the module on the right is non isolated Isolated modules are used when interfacing to signals which are referenced to a local common which is floating or at a different potential than the OVDC reference Non isolated modules are used when interfacing to signals referenced to the system 0VDC line or signals which are grounded for safety reasons WARNING Safety concerns are of paramount importance when co
110. ry Exporting a read only copy of a project using Manager before upgrading provides a fall back if the configurations fail to fit after upgrading See the Manager manual for more information on exporting projects LINK Overview 6 Appendix A SSD LINK Database This page left blank intentionally 62 LINK Overview Appendix B Module Memory Appendix B Module Memory Most SSD LINK system modules consist of three hardware PC boards e Processor board e Power supply board e Application specific board The processor and power supply boards are standard throughout the SSD LINK system product range The processor module contains a fixed quantity of non volatile memory and ROM containing the operating system software There are a number of software items that make up the final functional program for the SSD LINK system modules THE I O LIBRARIES I O libraries are application specific routines that handle the I O interface for the modules They also handle certain core functions like PIDs which not all modules support Modules are shipped with default configurations and libraries which allow them to power up after connection to a network Working configurations must be installed from ConfigEd before real functionality is possible A completely unconfigured module has no knowledge of the type of I O hardware present When configurations are installed from ConfigEd the libraries are loaded into the target module There can be many I O librar
111. s e g those with multiple cabinets It is also useful if part of the SSD LINK network has to be disconnected from the main network or powered off Secondary RTNX Power channel S port terminals Processor Processor Primary la channel P MAIN NETWORK SECOND NETWORK Md Tapped module Operator Station Operator Station Break must occur in this segment for main network to be maintained The above diagram shows the tapped network topology Data flows from the main network to the second network via the second set of fiber optic connectors or secondary channel connectors on the tapped module The tapped module is a standard SSD LINK module using both sets of fiber optic connectors All other SSD L NK modules on both networks use only the primary connectors If the second SSD LINK network is disconnected from the tap module either accidentally through a break in the fiber optic cable or on purpose by removing the fiber optic cable from the secondary channel terminals the main SSD LINK network is automatically maintained if the break occurs in the segment from the second network back to the tapped module The SSD LINK modules can be programmed to indicate when the second network has been disconnected which can be useful to allow different functionality when part of the system is disconnected or powered down Powering down the tapped module will break both networks as the tapped module is part of the main ring However the se
112. s 1 handler Disable Restart on network fail within system control function block System monitor Alarm Cha ma Reset Alarm Channel stoplatches Alarm Handler etc Output A Ack led E O nou cknowledge rs cud Alarm Channel ay other alarms E T l trip relay Ordinal sender nput A Alarm Channel am Emergency Stop channel E Emergency Stop Emergency REMOTE OPERATION STATION stop relay The alarms handler and the emergency stop relay inputs and outputs must be in the same digital I O module In order for the configuration to work properly it is important that the above digital module is prevented from shutting down during SSD LINK network failure conditions This can be done by disabling Restart On Network Fail option in the system control function block in the module configuration file The alarm output from the handler is used to reset any latches within the SSD LINK system This is important to prevent the drives from restarting when the emergency stop system is reset The unacknowledged alarm output is used to trip the emergency stop relay and the display output is connected to a remote operator station legend to indicate the alarm In order to reset the alarms handler the operator station annunciator must be pressed until all alarms have been acknowledged This clears the unacknowledged alarms output and allows the hardware emergency stop to be reset When the emergency stop is reset the alarms
113. s india CUR AE SEES ERR NER NES NUR I VR PR Od 47 TESTING NOT CONNECTED TO HUB DATABASE ccccsscsscssccscescesccsccccccsccscesceses 47 Before Testing ETT TOLL a LLL OIL 47 Test Procedure uino es io eo eye Ie ue IP TER EVER EAE PER IEEE a Lic os UE PER EUR asr o SNR Ue Haa S Pa Edo E eR Suo dua Ud 47 Backing Up and Updating eee eese ee ete e ee osten e epu eee ease sos daa ens eoa se SER PU Eoo ape Ree as na e aaa UE 47 Modifying Configurations on the Hub Database cccccccoccccococ0cc0c0000000000000000000000000 48 SHIPPING SYSTEMS AFTER TESTING e eee eee eee ee eee ee eee eese sees sees sees ese eesese 48 COMMISSIONING SSD LINK SY STEMS ee eee ee eee eee eee e eee e eee esee eee ee eee ee eeoee 48 Obtaining th Configurations oos eoevo rs ave v eoe PP ave aea va eb Rees eve Ee EYE YER oue SEVERE VE VERE PRENNE EE ERE VER 48 Daily Commission iiia aS I RYERROR NES SERAR ana Rasa dass asda seda doada aaa dias ticas mapeia ERES 48 Backing Up and Updating iiis eiiei desee eaa eie eoo o0 56000 0020090 Oo se RUPEE REED o ORE EU FU VR E SOR UOS eU E TE ERROR 49 Before Leaving Silos ici seeds ete d ed dU ee ees aUo dece soo ERR dea QUE ces eaa Se eo REDE Roe e cas Pee aeuo Us 49 SERVICING SSD LINK SY STEMS eee eee eee ee eee ee eee ee eee ee eee eee eese sees sees ese seesee 49 Restoring Failed Modules iiie ete or Ea eS EIE SER NNRRER SES VERAREE SER oana TRE VERRE CUR 49 Obtaining the Configura
114. s not store the variable to be changed The value to be changed is the input of the function block connected to the potentiometer output In this case the potentiometer output simply increments or decrements the input to the clamp Messages from the potentiometer are sent only while the raise and lower arrows are pressed just like buttons and annunciators When the potentiometer buttons are pressed the potentiometer takes the value of the setpoint adds or subtracts a small amount and sends this number from the output Addition or subtraction depends on the raise or lower buttons respectively and the magnitude of the change depends on whether a fast or slow button is pressed Since it is recommended that potentiometers be used with clamps the clamp output should be used as the feedback to the potentiometer setpoint as shown above Since the input of the clamp is persistent the current value of the potentiometer setpoint is stored even if the power is removed If it is always required to power up to a known value e g 0 use an initializer function block to pre set the clamp input In addition to the potentiometer function block a dual potentiometer and meter function block is available which integrates the potentiometer and meter functionality into a single band Wire OR and Potentiometers Potentiometer outputs can easily be wire OR ed for multiple displays Only one clamp should be used The diagram on the following page
115. s situation is typical of a load cell or dancer position signal being generated at a machine and transmitted to a main equipment enclosure for processing Two ground paths exist in this situation one from the ground at Location 1 to the transducer ground through the shield to the amplifier ground back to ground at Location 2 and a second from ground at Location 1 through the ground connection to Location 2 This second path is normally not shown in system electrical diagrams and can be easily overlooked The ground symbols used above imply this connection by showing that Locations 1 and 2 are tied to a common reference potential as shown in the following diagram GROUND LOOP Location 1 Location 2 LINK Overview 83 Appendix E Grounding Issues The physical connection will normally consist of a ground wire linking the two locations The ground loop allows extraneous magnetic fields to generate currents that will circulate through the loop thus flowing through the signal shield This interference will induce noise voltages onto the shielded signal which degrades the signal accuracy To eliminate the interference the loop must be broken This can be accomplished by either e Removing one of the connections at the shield shown below Power Supply Power Supply G G Amplifier X Loop broken Location 1 Location 2 e Or removing the ground connection at the transducer Power Supply G Ck a i X Loop broken Location
116. s take place only when events occur the SSD LINK system is said to be event driven When an SSD LINK function block is executed output results are generated and passed to other connected function blocks The connection may be local or over the SSD LINK network When one function block sends data to another a message is sent which may invoke execution of the receiving function block whether it does or not depends on the characteristics of the input to which it is sent It is common for many function blocks to send messages only when there is a physical action on the configurable inputs e g pressing a push button or changing a setpoint value from an operator station potentiometer The advantage is that processing capacity is not wasted when data is not changing and network traffic is reduced since messages are not sent if data variables are constant Many function blocks with multiple inputs will only generate an output when a specific input receives a message This input is referred to as the trigger input since sending a message to it triggers the generation of an output message see Section 6 4 2 There are certain specialized function blocks which send messages continuously at a given rate These are used when it is important to update the input of a function block continuously e g for feedback variables of closed loop control systems Two SSD Drives computer software tools ConfigEd and SAM are used to respectively configure and com
117. single point ground The aim of this scheme is to provide separate ground returns for each circuit thereby eliminating shared conductors and ground loops It is very effective in reducing noise due to low frequency lt IMHZ noise sources The diagram on the next page shows the additional ground wires necessary to provide separate grounds to each major section of the system Power Supply Power Supply G G Amplifier Location 1 i b Location 2 Se VO S Ls On Single ground E tum caren Ll RR nin lt Load currents Loads The voltage Vn is no longer part of any circuit involving the transducer and amplifier elements so the amplifier output returns to Vm K x Vs Note that this diagram does not show strict single point grounding since the system still contains some LINK Overview 85 Appendix E Grounding Issues lengths of shared ground conductors The transducer and its power supply share a ground between Location 1 and the grounding point and similarly for the amplifier and its supply The two loads shown on the AC power bus also share a ground return For most systems however the main concern is to provide separate grounds for subsystems to avoid crosscoupling between AC and DC sections power and signal sections and analog and digital sections USE OF A OV BUSBAR TO CONNECT POWER SUPPLIES With the SSD LINK system the signal 0V and the 24V PSU OV must be the same The 24V OV is normally implemente
118. system will have a defined operating transmission distance If the actual transmission distance is too short for the transmitter in operation the fiber optic receiver may saturate due to excessive light if it is too long the fiber optic receiver will be under driven In either case data will not be received Most SSD LINK modules have a fixed transmission power and operate over a range of 0 20m 0 65 assuming the cable is correctly terminated and the minimum bend radius of 50mm 2 is not compromised The fiber optic cable must not be abused during installation as it is sensitive to stretching which fogs the cable and greatly increases attenuation For some SSD LINK modules typically drive and repeater modules the transmission power can be selected The following table gives the transmission distance for these SSD LINK modules Fiber Optic Drive Power Distance Level 0 20m 0 65 Drive levels are set by means of a switch on the module These levels are intended only as a guide they are by no means perfectly defined since other factors must be taken into account e g the number and sharpness of any bends in the fiber If the power level is not set properly the resulting marginal operation may cause a spurious L Error of the module in the system and the errant operation may not become apparent for some time Therefore light meters should be used during initial system startup to measure the intensity of the light at the receiving mo
119. systems It is possible to connect logic gates which output logics to allow selection of operator station highlights which accept ordinals Values These are used for all signal processing The SSD LINK number range for values is 1 00000 Here e 1 00000 100 000 e 1 00000 100 000 The number resolution at present is 0 00003 which is equivalent to 0 003 Since all values are normalized to unity to multiply a value by 2 you must divide it by 0 5 Similarly 1f a value has to be divided by 2 this has to be done by multiplying by 0 5 DIVIDE multiply by 2 MULTIPLY divide by 2 input Output Input Input 0 5 0 5 0 5 In general and henceforth in this manual values are represented by percentages For example Output Input x 0 5 e 0 5 is represented by 50 e 0 83 is represented by 83 Values are Two s Complement SSD LINK uses 16 bit numbers internally to represent numbers Regarding values the 16 bit number is used to cover the full range of 1 to 1 The two s complement system is used to represent signed values e 32767 7FFF Hex e 0 0 e 1 32769 8001 Hex The number 32768 8000H is currently an invalid value within SSD LINK If this number is encountered as a value the SSD LINK module could generate an L Error This could happen if ordinal numbers are directly used as values If ordinal numbers must be used as values there are ordinal to value conversion function
120. t of the system the application may fail anyway Note Since they both use the secondary channel it is not possible to have a redundant ring and a tapped topology on the same networked system PREFERRED DIRECTION FOR THE FIBER OPTIC NETWORK Data messages may have to pass through many SSD LINK modules before they reach their final destination It takes 84uS for a message not addressed to a particular module to pass through it Therefore the total delay through a chain of modules including repeaters is equal to the number of modules in the chain x 84uS This delay is quite short and therefore the assignment of functions to modules and their order in the ring 1s not critical It is recommended however that the data flow follows the process direction shown below where possible This will result in optimum system performance LINK Overview d Chapter 3 SSD LINK Network Process direction Data direction SSD LINK fiber optic network Winder control Winder drive software block a Total delay p 5x 84uS 420uS CONSTRUCTING THE FIBER OPTIC NETWORK The most common type of fiber optic used with SSD LINK systems is plastic multi mode cable which is inexpensive easy to terminate and suitable for short to medium transmission distances For long transmission distances the glass cable option 1s preferable The following guideline information is given for plastic cable Transmission Distance for Plastic Cable Any fiber optic
121. t only on change senders are particularly important when sending logics on the network Senders are not required for e Connections within a single module e Potentiometers e When data is sent over the network via continuously triggered function blocks Initialization It is important that the SSD LINK system software blocks achieve the correct state on power up Otherwise data mismatch can occur on power up of the whole system Some function blocks have an initialization state which can be set on power up This initialization state determines the function block state when power is applied and is set up at configuration time via ConfigEd Initialization is commonly used for state dependent logic blocks such as latches Persistent inputs always store the last data set before the system is powered down Initializer Function Block The Initializer function block allows power on initialization of any variable These can be logic values or ordinals The initialized variable is sent only once on power up The required initialization state is set from ConfigEd Only one initializer function block for any given initial value logic or ordinal is required within a single module Initialization blocks are required only if no initialization state is available for a particular function block Dormant Function Blocks On power up of an SSD LINK module any function blocks which do not have persistent parameters are activated only when triggered by
122. ta See the following diagram Module configuration SSD LINK network Slot 1 Slot 2 Slot 3 Address 1 4095 possible slots 3000 possible addresses Note that using small ordinals those from 0 to 255 for slot and module addresses will make configurations more compact and thus allow more functionality to fit in each module LINK Overview 27 Chapter 6 Configuring SSD LINK Standard Addressing It is best to adopt a standard method of assigning addresses to the modules on your network This simplifies the task of grouping modules by function within your system and easily keeping track of them For example grouping of a drive and its associated modules processor operator station I O etc can be accomplished by giving the drive an address of 10 and then assigning addresses of between 11 and 19 to the other modules associated with that drive The next drive can be given an address of 20 and its associated components addresses of between 21 and 29 This pattern can be repeated throughout your system Remember that using smaller address numbers those lt 256 saves configuration space Standard Module Names Each SSD LINK configuration must be given a valid DOS name of eight or fewer characters One example of a naming protocol is using the module type number followed by an underscore followed by the module address For example 5207 11 would be an L5207 processor module with a module address of 11 Additional examples are shown in
123. tabase DATABASE DESCRIPTION The SSD LINK database structure is a collection of directories containing files The root of the directory structure is a directory named ssd link The database contains the following file items e Function blocks e New module configurations e I O libraries e Project configuration files e SSD LINK configuration tools Manager ConfigEd and SAM The following diagram shows a typical SSD LINK database directory structure SSO LINE ID DAT CLASSES rar Class Files not present in SAM aonly applications CONF IGE NEW Initia Configuratian Files 12345678 8 Project Directory L5101 10 L5207 11 12345679 L5101 20 Project Configuration Files INSTRS Instruction Files not present in SAM only applications LIBS HO Library files Liss Log files PLATS Target Platform files SYMBOLE Symbol files TOOLS WINS Manager SAM and ConfigEd This database must be available either on the local disk or accessed over a network to any computer used for configuring or maintaining SSD LINK systems It is installed automatically by Manager during the tools installation procedure WARNING Under no circumstances should any SSD LINK database be modified in DOS without consulting SSD Drives LINK Overview 57 Appendix A SSD LINK Database The SSD LINK database directory structure is rigidly controlled and must not be altered at any time by the user The configuration tools expect to find
124. tabase can be kept current and allow the user to manage projects and databases in an efficient and safe manner See the Manager manual for details on its database management functions PROJECT CONFIGURATION FILES When configurations are installed with ConfigEd a number of files are generated in the user s SSD LINK database including three files relating to each specific module configuration e NAME Main configuration file e NAME SYM Symbol file generated during installation e NAME CLS Class file generated during installation e NAME BKU Backup file generated during installation NAME refers to the name of the module configuration specified by the user in ConfigEd and refers to a three digit revision number This number starts at 001 for the first revision and increments when there is a change to the configuration as it is saved ConfigEd regulates the number of past revisions saved see the user manual for details The SYM CLS and BKU files are generated or updated automatically when the configuration is installed to the hardware module using ConfigEd If a modified configuration is not installed to the module then the files are not updated Configuration Files and SAM There is not enough information solely within a module to allow SAM to access its parameters the CLS and SYM files are required LINK Overview 59 Appendix A SSD LINK Database It is important these two files match the actual configuration with
125. tected locally by the given module e Network message CRC errors e Network message overrun errors e Network message fragments All these logged messages indicate corrupt SSD LINK network messages that have been received and rejected by a particular module The network message fragments are the most useful for detecting fiber optic problems Each module s System Control should be examined to find which module is receiving excessive errors The fiber optic cable supplying that module should be examined for improper length or damage and light levels at the receiver should be checked with a light meter The L5203L logger described in Chapter 8 performs some of this data collection continuously HANDLERS A handler is a function block that groups together other specific function blocks Handlers are used to simplify the configuration and set up of multi channel functions The handler may specify the position of a particular function block on the display of a operator station Examples of handlers include e Digital I O handler e Alarm handler e Operator station display handler e Operator station button band LINK Overview 67 Appendix C Configuration Guidelines Operator Station Display Handler The following diagram shows a typical handler used to specify an operator station display Configuration Hardware Operator station screen Operator Station display function blocks Display handler function block In orde
126. the modules and connected together to form the configuration The operating system uses an object oriented approach allowing very efficient use of the configuration memory within SSD LINK modules What is a Class When multiple function blocks of the same type are installed into a module the block s executable code is included only once Such a unit of code is known as a class Classes exist in a hierarchy allowing subclasses to inherit the code and functionality present in the parent again with that code appearing only once in the module This saves configuration memory and makes the function block code easier to maintain What is an Instance An instance 1s a particular form of a class Instances hold the data associated with a unique and identifiable function block When a function block is executed the instance variables are used as inputs to the above class software The class software is executed to form the function block outputs which may be stored in the instance or sent out the output connections or both In essence an instance is a function block created and named by the user within ConfigEd What is Stored in the Module In brief there is only one class stored in EEPROM for each different type of function block and there is one instance stored for each function block The following diagram shows a typical class with three instances of that class LINK Overview 65 Appendix B Module Memory Class and Instance 1 Inst
127. tions sccciscseccsscccoscsccescssdecceustevsssescsscccessscesssesdseccussesceseseseecevssese 49 Changing the Configuration or Set Up ecce eee eee eee eee eee eee esos eese eese esee see eseeseeoe 49 Backing Up and Updating iiie Iii tenet oe Sen oen eeu sna eda vog Us 002 Oda OU oaaae aoa ETE gan as das assa SUR Add 49 Before Leaving SITO i iosoe seis oss eo on Sa Va aeo ep ea 0 400 apa eaa PU o aUa a ER FEE VER PU IURE ERO VE ERRER duras adia cando USE VUE 50 Chapter 8 Troubleshooting NETWORK EXCEPTION S ce eee eee ee eee ee eee eee e eese ee sese esses sees esses see se eese esses eee seee 51 DETECTING SSD LINK NETWORK PROBLEMS ee eee eee eee eee ee eee eee eee eese eee eeseeeoee 51 Operator Station Network Monitor ce eee ee eee ee eee eee ee eee ee eese see eese ese sees eese scene 52 Logic 5ysteim Monit r 2c2s0002606006000 000060600 6h0 Cub 6 cer ede nin v ed R OR oo ZU Yo ERE PRU abano ee VR E Pee Coa eaaa 52 Logic Watchdog coii ins elei d ee AN bENE E VES N TUAE EE ERRARE UR EE PENAT o AREE A RARE NER ANY EE iii 52 Network Errors and the L5203L Exception Logger 0cocococ0cc0000000000000000000000000000000 52 DETECTING MODULE FAILURES ee eee eee ee eee ee esee ee e ee e ee eere eee ee eee esee ee eeeseeeesese 53 Health LED e M 54 Module List JERA iE EE E R VETTER UE CAO E GE o ERREUR r A SER LER er Er 54 L Error FallUFes iiio d
128. to the test department computer this is best done by exporting the project in read write form from the Hub database e Obtain a copy of the current configuration block diagram drawings Test Procedure e Power should be applied to the system using standard procedures e The module configuration files should be installed to the appropriate modules on the SSD LINK network e Atleast two free pages of module memory should remain when configuration files are installed e All modules should be checked to ensure satisfactory health status after all configurations have been installed Sufficient tests should be applied to the system to ensure the functionality matches that of the system specification where necessary the configuration files should be modified SAM may be used to aid testing of the system Backing Up and Updating e If SAM has been used to make permanent modifications to SSD LINK module configurations use the Update command within ConfigEd to update all SSD LINK modules Check the scratch pad to ensure no errors have been generated during the project update procedure e Ifthe configuration files have been modified via ConfigEd during the course of the day export the project in read only form to the backup floppy disk using Manager and store the backup disk in the allocated storage area f Transfer projects to the Hub SSD LINK database LINK Overview 47 Chapter 7 Configuration Procedures Modifying Configurations on the Hub Databas
129. transferred to the main ROM The patch file then shrinks back to a minimal size HOW MUCH CAN FIT IN EACH MODULE It is not easy to assess how many function blocks and connections will fit into a given module When a finished configuration is about to be installed to the target module it is compiled into a compact form It 1s only then that the actual configuration can be assessed for size and the installation aborted if too large Note It is most important that some free space remains after the configuration file has been installed so the patch file will have room to grow The memory space is divided into pages in which each page represents 256 bytes ConfigEd indicates the number of free pages after the configuration has been installed to the module It is highly recommended that at least two free pages of memory space be available after the configuration has been installed Otherwise there is a real risk that as the patch file grows the configuration will no longer fit into the module This is crucial for on site equipment requiring modification In that case if the configuration will not fit it will have to be re engineered During installation ConfigEd indicates in the scratch pad window the number of free pages available If fewer than two free pages remain the configuration should be split up into more modules TEST POINTS Test points are used to allow easy access to certain parts of the configuration via SAM without the SYM an
130. tside the SSD LINK network a contact is used to indicate this to the network as shown This could be used for example to reset any drive start latches within the configuration This is important to prevent the drives from restarting when the emergency stop system is reset In order for the configuration to work properly it is important that the digital module shown above is prevented from shutting down during SSD LINK network failure conditions This can be done by disabling the Restart On Network Fail option in the system control function block in the module configuration file It is important that the emergency stop relay is set to a safe state if the above digital module shuts down due to other reasons It is recommended that the relay on the output of the digital module should be energized in order to reset the emergency stop line If the digital module shuts down or power is lost the relay will de energize and the emergency stop will be activated Emergency Stop and the Alarms Handler The alarms handler function block is used to collect many SSD LINK system alarms and to provide indication on an operator station display The alarms handler can also provide logic outputs to reset SSD LINK system latches and the emergency stop system The following diagram shows a digital I O module with the alarms handler used for this application LINK Overview 19 Chapter 5 Planning a System Indicate on network fail Messages sent to eise eom T ane
131. upplies and cause the SSD LINK system to shut down Some SSD LINK modules especially the L5102 operator station draw significant surge current on power up and power supplies must be chosen to tolerate this Power supplies with foldback current limits can be problematic unless carefully sized Use only wire designed approved and intended for use in power circuits when wiring from the 24VDC supply to the SSD LINK modules Select power cable rated for the continuous load current required by the SSD LINK modules and use an appropriately sized fuse to protect the power supply and cables Do not use signal wire for this purpose as its undesirable high impedance which also results in power losses is a potential fire hazard in the case of overloads caused by an accidental short circuit or other fault In most cases the power common or OVDC signal common will be grounded at one place in a system However it may sometimes be necessary to provide a separate isolated power supply for a particular module This is the case for L5202 Digital I O modules which use active low input channels An active low logic channel is energized when its input is pulled low An external wiring fault which causes an input wire to be accidentally connected to ground will look like a valid input if the power supply common or signal common lines are grounded If this input 1s a safety interlock or can cause machinery to go into motion such as a start switch input then a saf
132. vents triggering still should take place at reasonably regular intervals Decimation Filter This is an averaging filter The output is the arithmetic mean of a specified number of input events The output is updated when the specified number of input events has taken place This results in a reduced output event rate Use Where the input event rate must be reduced to prevent module overload and an error of 0 1 in output is acceptable with large decimation values The decimation filter is particularly useful for operator stations TEST POINTS Test points are used to simplify the use of SAM when configurations are to be monitored and set up Test points are added when the modules are configured The following diagram shows a typical block diagram with test points TP 1 TP 2 Jog SP added to commonly used points within the configuration 8 LINK Overview Appendix C Configuration Guidelines Setnoint Setpomttn clamp m amp ratio max 10034 min Setpoint 25 5 Trim 40 Ratio 35 Jog SP fy Typical testpoints Jog OR Inch i a0 ZEFA gt nch 2 70 ap 4 45 Total setpoint 40 Inchistart The actual test point text 1s stored within the module configuration memory allowing SAM to access the test points without having the configuration files on the same computer In order to achieve full SAM access to all function block information the up to date configuration files must be present To minim
133. view Appendix A SSD LINK Database Changes parameters within SSD LINK module SSD LINK module ConfigEd Update ae Fil ConfigEd installation retains ConfigEd MM SAM changes Refer to the ConfigEd manual for more information on the Update command Upgrading the Project The SSD LINK database which contains function blocks as well as other items is periodically updated to add new function blocks and modify existing ones to introduce new or enhance existing functionality and to fix bugs When a new project is created information about the then current database is stored in it This ensures the project configurations won t require more module memory to install in the future as the core database grows Because of this snap shotY effect new functionality is generally not available to existing projects If new functionality is needed in an existing project ConfigEd s Upgradecommand will reset the project s snap shot of the database to the current revisions of the core database The penalty for using Upgrade is that the configurations may require more memory in the module to be installed For this reason Project Upgrade should be used with great care on commissioned systems to avoid running out of configuration memory and necessitating potentially widespread redesign The reason for leaving two free pages in a module configuration as discussed earlier is to allow upgrading while reducing the chance of running out of configurable memo
134. y and backup configurations throughout the network For more information on the software tools see Section 2 and their respective manuals LINK Overview Chapter 2 Computer Tools Chapter 2 Computer Tools SSD LINK is a configurable drive systems product range In order to configure the modules an IBM PC compatible computer with a 386 or greater processor running Windows 3 1 or later and a mouse or other pointing device is required along with configuration software tools from SSD Drives For requirements specific to individual tools refer to the manuals for those tools SSD LINK CONFIGURATION TOOLS In order for SSD LINK modules to be configured and set up software tools Manager Setup And Monitor SAM and Configuration Editor ConfigEd from SSD Drives are required The software tools use program specific hardware keys which must be plugged into the parallel printer port of the programming computer A hardware key for ConfigEd also allows the use of SAM a key for SAM alone will not allow the use of ConfigEd Manager is included with both SAM and ConfigEd and will work with either key The software tools access the ssd_link database which contains both pre defined files libraries new module configurations function blocks etc and user created projects Project directories contain user created configurations and support files for each system being designed See Appendix A for details of the SSD LINK database and the individual t

LINK Overview

Contents

Download Pdf Manuals

Related Search

Related Contents