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MS320 User`s Manual

1. Display Digits nes 7 AHAA Digit Function Function Codes Digit 1 0 Unused Switch Input 1 Function 1 Fast Stop Digit 2 2 Jog Switch Input 2 Function 3 Setpoint 1 Setpoint 2 Digit 3 10 4 Scroll Setpoint Up Switch Input 3 Function 5 Scroll Setpoint Down Disit 4 6 Master Follower Switch Input 4 Function 7 Closed Loop Open Loop 8 Speed Command Signal Reset Table 6 Var17 Switch Input Function Codes The fast stop function overrides the run stop switch input When the fast stop function is activated the speed command signal immediately goes to zero The jog function enables the user to move or jog the process using an open loop speed command signal When the jog function is activated the speed command signal is set to the percent output value programmed into Varl1 The jog function can only be activated when the MS320 is stopped The setpoint 1 setpoint 2 function enables the user to select the active setpoint on the fly The active setpoint is the setpoint that is currently being used to control the process speed Setpoint is the active setpoint when the switch input is open Setpoint 2 is the active setpoint when the switch input is closed When this input changes state the MS320 ramps to the new setpoint at the ramp rate specified in Var07 and Var08 When the controller is in follower mode this input will select the active ratio The scroll setpoint up function enables the us
2. Speed Command Output 0 10 V standard Description 1500 Volts Isolation 12 bit DAC Span adjustable from 3 to 15 VDC 4 20 mA optional 1500 Volts Isolation 12 bit DAC 40 Ze ELECTRO SENSORS SY Operational Specifications Accuracy Description 0 02 master and follower mode Response Time 20 ms Operating modes Master or Follower Setpoints 2 Master 2 Follower 1 Jog Display 4 digit 0 3 seven segment LED with 5 Status LEDs Mechanical Description Enclosure ABS Plastic 94V 0 Keypad Polycarbonate Tactile Switch Pad Chemical Resistant Splash Proof Operating Temperature 0 50 C 32 122 F Humidity 0 90 Non Condensing 41 ELECTRO SENSORS Dj This page is intentionally left blank 42 Ze ELECTRO SENSORS A Appendix D Variable Value Logs Speed Setpoint Log Variable Modbus Variable Default Range of Decimal Page Number Address Name Value Values Point Reference Locations Speed oo ata 31 41310 Setpoint 1 1800 0000 9999 Fixed 33 Speed 11 32 41320 Setpoint 2 0900 0000 9999 Fixed 33 Ratio Setpoint Log Decimal Point Locations Modbus Address Default Value Variable Name Variable Number Range of Values Page Reference Ratio Setpoint 1 Ratio Setpoint 2 0000 9999 0000 9999 Security Variable Log Decima
3. The diameter of the roll is displayed when variable 19 is programmed for Wind Unwind with core calculation option 7 The formatting is controlled by the Upper Limit variable of the ADC that is programmed either variable 21 or 23 17 Ge ELECTRO SENSORS A 18 Table 3 Var12 Display Function Codes acc Digit Function Status Code Digit 1 Run Stop Switch Input Digit 2 Gate o pen Switch Input 1 Closed gt Switch Input 2 Unused None Table 4 Display Function Code 6 Standard Input Status ee Digit Function Status Code Digit 1 e WE o rre E E 1 Pulled In SCH Relay Output 2 Digit 3 d CS Switch Input 3 0 Open LE f 1 Cl Get Switch Input 4 SES Table 5 Display Function Code 7 Optional VO Status ELECTRO SENSORS A Var17 Switch Input Function User Variable 17 Switch Input Function allows the user to select what function a switch input performs The user can choose any function from a set of switch input function codes The following table gives the function codes and also shows which digit of Var17 corresponds to which switch input The default function for switch input is jog switch input 2 is setpoint 1 setpoint 2 switch input 3 is unused and switch input 4 is unused These switch input functions are activated by an AC voltage applied to the respective input by an external switch The RUN STOP switch cannot be reassigned
4. Diagnostic Output percent or RPM ee E E Up and down arrow Eunctioii XX or XXXX SE keys 3 a percent Output percent when scrolling Analog and RPM when not Output Go to level 1 DIAG key Calibration Tepi Input switch states e tion Run Stop switch digit one 3 Switch one digit two Go to level 1 DIAG key Standard O Switch two digit three XXX Test Input switch states E i Perform a CS Pull in relay 1 Right arrow key Diagnostic Switch three digit three Bn Switch four digit four Pull in relay 2 Left arrow key 3 Function Rel KS states Drop out both Relay one digit one l ENTER key Optional UO Ed relays T Relay two digit two est XXXX Go to Level 1 DIAG key VAR key 1111 Up arrow key 222 2 Perform SETPT key 33 33 Show the key test All keys except the 3 ey Left arrow key 4 444 value DIAG key uncHon ENTER key 5555 Keypad Test Right arrow key 666 6 a Decimal point key 77 77 Down arrow key 8 888 Go to level 1 DIAG key Perform Diagnostic 3 Faction Firmware version XX XX Go to Level 1 DIAG key Firmware Version Perform Diagnostic a Enean dOnE GotoLevell DIAG key Reset to Factory hara Accept value ENTER key 3 Sen bare ADC value gt Abort to level 1 DIAG key Set Full Accept value ENTER key 3 Roll ADC value Abort to level 1 DIAG key gt The user cannot exit the analo
5. 8 ccccesccesesseesseeseeeseeeeeeeeeesccesecesessecnseceaeeaecaecaeeaeeenes 36 Analog Inputs TB4 7 TB4 8 TB4 9 cooocoonicninonococonononnconccnnconnconnonnnonnronn ei i iii eiiis 37 Speed Command Signal Output TB1 5 TBI An nono nnnnnnnncnn nro no rn nn corran nrnnnrnnnnnn 37 Control Inputs Standard TB2 1 TB2 2 TB2 3 Optional TB3 1 TB 37 Power Supply Input TB1 1 TB linia ici 37 Relay Outputs TB3 5 TB3 6 and TB3 7 TBS B furce isi n E E E E E ESS 37 Serial Communications Connections TB4 1 through TB4 oi noc nnnnncnnnonno 37 ELECTRO SENSORS FY Waring Diagram EE 38 Wiring Practices for Industrial Controllers non rnnn no nn corn nonnnnnnrnnnrnnnrnnnnns 39 Appendix C MS320 Specifications oonoooccccnnnnnnnnnnonnncccconcnn corn nnnannnanc cnn rca nn 40 Appendix D Variable Value LOGS oooonocccincccnnncnnoconnnccnnoccccnnornnn rca 43 Speed Setpoint E EE 43 Ratio Setpoint og eier ebe E era o it est le Ee 43 Security Variable Logs isc E E EE 43 RI O 43 User Vanable Los ut es eel aa el ege a A laces ten yeh lake 44 User Variable Log Option Board ccccescesseesseesseeseessceeecesecesecsecnaecnaecseecseeeaeeeaeeeaeeeeeeseeseeseeeeeeesaeenaes 45 MS320 User s Manual Back Cover 48 ELECTRO SENSORS A List of Figures Figure CMS System Diagtaim s 240i n A E a ee eee 7 Figure 2 Effective Setpoint vs Trim Valuc cccsccssscsscsssersesssesssesseessesssseseesoesscesnesonecossensesnsesnsesseesne
6. AE 36 ELECTRO SENSORS FY Introduction to This Manual What is in this manual Who should use this manual audience Knowledge level Notices This installation and operation manual provides detailed technical information about the MS320 Motor Controller It should serve as your technical resource to install set up operate and test the MS320 Keep in mind that the function of the MS320 installed in an electro mechanical process is to control a motor s speed via a variable speed motor drive therefore it must be installed by qualified personnel only This manual is designed for persons who have the primary responsibility to install set up operate and test the MS320 The secondary audience would be those persons seeking technical information about the electrical concepts and operation of the MS320 Persons installing setting up and operating the MS320 should have good knowledge and understanding of electrical and mechanical concepts and principles pertaining to Motor Controllers Again the MS320 should be installed by qualified personnel only Installing Electro Sensors Inc products is the responsibility of the purchaser and is in no way guaranteed by Electro Sensors Inc While the information in this manual has been carefully reviewed Electro Sensors Inc assumes no liability for any errors or omissions in this manual Additionally Electro Sensors Inc reserves the right to make changes to any part of the
7. DIAGRAM NC 3 SPEED COMMAND A SPEED COMMAND VARIABLE SPEED DRIVE Ds SPEED COMMAND COMMON nc 6 OFFSET POT D SPAN POT D TB2 RUN STOP SWITCH INPUT SWITCH INPUT 1 SWITCH INPUT 2 NC SPEED COMMAND INPUT THE SWITCH INPUTS MUST USE THE SAME VOLTAGE AS TB1 1 LEAD SIGNAL LEAD SIGNAL COMMON LEAD SIGNAL Note ensure lead sensor is hooked up to only one supply COMMON 12 v 6 FEEDBACK SIGNAL LEAD SIGNAL MS320 OPTION BOARD WIRING DIAGRAM MS320 OPTION BOARD WIRING DIAGRAM 38 TB3 SWITCH INPUT 3 SWITCH INPUT 4 NEUTRAL L2 NC RELAY OUTPUT 1 e e e RELAY OUTPUT 2 8 TB4 EXT 5 VDC TX TX RX RX EXT COMMON 6 NEUTRAL OR L2 LINE OR L1 E VOLTAGE AS TB1 1 EN THE SWITCH INPUTS MUST USE THE SAME O SIGNAL ANALOG INPUT 1 0 10 VOR 4 20 mA O SIGNAL ANALOG INPUT 2 ANALOG COMMON 9 O SIGNAL Figure 7 MS320 Wiring Diagram ELECTRO SENSORS A Wiring Practices for Industrial Controllers 1 All control signals must be shielded cable The shield must be tied to common or earth ground at the receiving end only In some environments earth ground may contain excessive electrical noise If you have problems using earth ground as a shield tie point switch the shields to signal common All co
8. TB4 8 is the Analog Input 2 terminal TB4 9 is the analog common terminal Speed Command Signal Output TB1 5 TB 1 4 A two conductor shielded cable should be used for this connection with the shield tied at the receiving end in this case the variable speed motor drive s end The standard analog output is 0 10 V with a maximum output current of 10 mA The output span can be adjusted from 3 to 15 V to accommodate different variable speed drive input requirements This output is isolated to 1500 volts If a drive requires a negative voltage input the connections on TB1 4 and TB1 5 can be interchanged The MS320 is only capable of a positive voltage output An optional 4 20 mA speed command signal output is available The speed command output can be calibrated see the section Anou How to Calibrate the Speed Command Signal for details Note TB1 5 is the speed command output terminal TB1 4 is the speed command common terminal The TB1 4 common is not internally connected to the TB4 9 analog common These two commons are totally isolated from each other Control Inputs Standard TB2 1 TB2 2 TB2 3 Optional TB3 1 TB3 2 The MS320 has 3 standard and 2 optional switch inputs that are used to control the operation of the MS320 The RUN STOP input TB2 1 is dedicated to controlling the state of the MS320 The other four switch inputs can be assigned functions by the user via Var17 All of the switch inpu
9. averaging disabled the MS320 samples the analog input every 20 ms using only the value of the past 20 ms With averaging enabled the analog input signal is still sampled every 20ms however the MS320 then uses a running average of the last eight analog values 1 e average over the past 160 ms User Variable 24 Analog Input 1 Averaging Enable User Variable 25 Analog Input 2 Averaging Enable The Var24 and Var25 selections are 0000 disables averaging i e OFF 0001 enables averaging 1 e ON The default is for averaging to be disabled OFF 28 ELECTRO SENSORS A This page is intentionally left blank 29 ELECTRO SENSORS FY Analog Input Calibration The analog inputs are calibrated at the factory as 0 10V inputs Ifusing the analog input s with a 0 10 V signal type analog input calibration may require only a minor adjustment if any Ifusing the analog input s with a 4 20 mA signal type a complete analog input calibration is necessary The following procedure is used to calibrate the analog inputs 1 2 00 Set the Analog Input s DIP switch according to the type of input desired 0 10V or 4 20 mA See Figure 1 below for DIP switch locations Set Var19 to the desired Analog Input Type and Function Note If calibrating the Analog Input as a 0 10 V without an assigned function set Varl9 0000 If calibrating the Analog Input as a 4 20 mA with
10. can get rid of two of the four wires and still be able to implement the network This works because each transmitter is in turn enabled only when it needs to talk and is disabled otherwise To implement the Modbus network as a two wire network TB4 2 TX needs to be tied to TB4 4 RX and TB4 3 TX needs to be tied to TB4 5 RX The MS320 supports four function codes as follows Function Code Description Data Type Var30 selections 3 Read Holding Register Reads a User Variable Value All 4 Read Input Register Reads a Display Value All 6 Preset Single Register Write a User Variable Value 4 and 5 only 16 Preset Multiple Registers Write a User Variable Value All The bus master may read or write only one user variable value in the MS320 per query response cycle This might seem like a contradiction since we support function code 16 but it isn t Modbus assumes that all registers are 16 bits long and that each Modbus address actually refers to a 16 bit location So how do we get at a 32 bit user variable value We divide it up into two Modbus registers The MS320 stores the two 16 bit halves in consecutive locations e g Var01 is at 41010 for 16 bit data types and at 41010 41011 for 32 bit data types This is handled automatically by the controller the user only has to specify the data type in Var30 We prevent the MS320 s user variables from occupying consecutive registers in the Modbu
11. ccoo nr nn nn nnronnrannnnnnos 23 Uer How to Find Out the Firmware Version Number 23 TESE How to Reset the User Variables to Their Factory Default Values cee ceceeceeseereeeeeeeeeeeeeenees 23 No Fecdback Protection ici ade Ee 23 The MS320 Option Board 24 Var14 Var15 Varl6 Relay Output Variables 0 0 cccecccecscessceesceeeceeeceeesecesecesecaecsaecaeecaeeeseeeneeneeeereeas 24 Var19 Analog Input Type and Function Variable 0 0 0 0 ccecesceesseesceesceeeceecesecesecaeceecseecaeeeaeceeeeeeneeaes 25 Var20 Var21 Var22 Var23 Analog Input Lower Upper Limit Variables 0 ccc eeesceeeeceeeeeeneeeees 27 Var24 Var25 Analog Input Averaging Variables cccceescessceseeesceescesecesecseeeaecsaecaeecaeeeseeseeeneeeneeees 28 Analog Input ee TE 30 Var26 Wind and Unwind Applications without automatic diameter calculation at startup 31 Var27 through Var34 Modbus Serial Communications o ooooonnnnnnnnccnnnccnnnncnnnncccnanccnonrn nana cnn 32 Serial Communications Wiring Diagram ccceescesscesscessceseeeseceeecseecseeeseeeaeeeeseeseeneecesecaeceseeeecseeenes 34 Var36 Var37 Wind Unwind With Automatic Roll Diameter Calculation at Startup cece 34 Appendix A Panel Cutout DIMENSIONS oooccccncccnnonnoncccnoncnnnona canon cnc cnn rca nan nn nn 35 Appendix B Wiring the M30 36 Sensor Power Supply Output TB2 6 TB7 at rro n rn nro n rra nnnnnrannrnnn 36 Sensor Inputs Feedback TB2 7 Lead TB2
12. encoder mounted on its shaft Pump two delivers 20 L min at a speed of 1500 RPM and has a 60 PPR encoder mounted on its shaft The application mixes 5 to 20 liters of the pump two chemical to every 100 liters of the pump one chemical Because pump one can deliver a maximum of 100 L min pump two will be set up and calibrated to run at a maximum speed of 1500 RPM or 20 L min This will mix 20L with 100L when both pumps are at their maximum speeds The values programmed into the MS320 for the follower pump that it controls pump two are Var01 is 1500 Var02 is 20 00 Var03 is 0060 The values programmed into the MS320 for the lead pump pump one are Var04 is 0200 Var05 is 0600 Var06 is 1 000 With a ratio setpoint of 1 000 the follower pump delivers 20 liters for every 100 liters of the lead pump With a ratio setpoint of 0 500 the follower pump delivers 10 liters for every 100 liters of the lead pump With a ratio setpoint of 0 250 the follower pump delivers 5 liters for every 100 liters of the lead pump In this example it would be much easier to set the ratio setpoints in user units This is done by entering 20 00 into Var06 Unity Ratio User Units 20 00 is the maximum value that pump two produces with respect to the maximum pump one produces The ratio setpoint can now be set in liters per 100 liters With a ratio setpoint of 20 00 the follower pump delivers 20 liters for every 100 liters of the lead pump With a ratio
13. is because all analog values including zero are valid so there is no way to tell when there is a no feedback condition If the analog input feedback signal is lost the controller does not ramp the output to zero Instead the PID algorithm attempts to correct for the zero feedback by increasing the speed command signal Seeing no response the speed command signal is increased again eventually reaching its maximum value The MS320 Option Board Var14 Var15 Var16 Relay Output Variables User Variable 14 Relay Output Function allows the user to select what function a relay output performs The user can choose any function from a set of relay output function codes The following table gives the function codes and shows which digit of Var14 corresponds to which relay output EE Digit Function Function Codes ok 0 Unused Digit 1 Relay Output 1 1 High Speed Alarm 2 Low Speed Alarm 3 Speed Deviation Alarm Digit 2 4 Zero Speed Relay Output 2 5 Drive Enable 6 Ramp Complete Digit 3 Unused N one Digit 4 Unused Table 8 Var14 Relay Output Function Codes The unused function keeps the respective relay permanently dropped out The high speed alarm function pulls in the relay when the line speed exceeds the trip point and drops out the relay when the line speed falls below the trip point The low speed alarm function pulls in the relay when the line speed falls below the trip point and drops out the relay w
14. setpoint of 10 00 the follower pump delivers 10 liters for every 100 liters of the lead pump With a ratio setpoint of 05 00 the follower pump delivers 5 liters for every 100 liters of the lead pump 15 ELECTRO SENSORS FY Operational Variables Var07 Acceleration Time User Variable 7 Acceleration Time is the time it takes to ramp the speed of the shaft on which the feedback sensor is mounted from zero RPM to the maximum feedback RPM Var01 Acceleration time is in seconds The shortest acceleration time allowed is 0 1 second In follower mode applications the acceleration time should be shorter than the acceleration time of the lead system Var08 Deceleration Time User Variable 8 Deceleration Time is the time it takes to ramp the speed of the shaft on which the feedback sensor is mounted from the maximum feedback RPM Var01 to zero RPM Deceleration time is in seconds The shortest deceleration time allowed is 0 1 second In follower mode applications the deceleration time should be shorter than the deceleration time of the lead system Var09 Proportional Value User Variable 9 Proportional Value determines how the controller reacts to transient disturbances in the line speed The proportional value is multiplied by the error term the difference between the desired line speed and the actual line speed and then applied to correcting the speed command signal A large proportional value enables the syste
15. shield tied at TB2 5 of the MS320 Sensor Inputs Feedback TB2 7 Lead TB2 8 The sensor inputs require a frequency related to the line speed being controlled feedback or the line speed being followed lead Several different types of sensors are supported by the MS320 including hall effect sensors encoders and magnetic pickups 12v m2 SENSOR POWER SUPPLY 22K 12v 102 10K 10K FREQUENCY INPUT TER sw3a ee sws A 2 2K AS Te 182 100 zwa oK SENSOR Bl A sw4 COMMON RS Sensor Type DIP Switches TT ON OFFf Figure 6 Sensor Type DIP Switches DIP Switch Configuration Sensor Sensor Type ON OFF NPN Open Collector 5 4 6 Feedback PNP Open Collector 6 4 5 2 Wire Magnetic Pickup 4 5 6 TTL Logic NONE 4 5 6 NPN Open Collector 2 1 3 Lead PNP Open Collector 3 1 2 2 Wire Magnetic Pickup 1 2 3 TTL Logic NONE 1 2 3 Table 10 Sensor Options 36 ELECTRO SENSORS A Analog Inputs TB4 7 TB4 8 TB4 9 The analog inputs can be either 0 10Vdc or 4 20 mAdc They are controlled by Var19 and the Analog Input Type DIP switches A two conductor shielded cable should be used for each of these connections with the shield tied at the receiving end in this case the MS320 s end The analog inputs can be calibrated see the section Analog Input Calibration for details Note TB4 7 is the Analog Input 1 terminal
16. 2000 Hz i e 1800 0 9 2000 Because 10V is now 2000 Hz then 90 of this is now 9V at 1800 Hz For the Setpoint Ratio Trim and Setpoint Ratio Inverse Trim functions The full span of the analog input can be used as the normal operating range 0 to 10V or 4 to 20 mA Since these two function s nominal operations are centered around the mid scale points of 5V or 12 mA the analog input ranges are allowed to swing to the OV 10V 4 mA and 20 mA endpoints These two function s lower and upper limit variables are programmed in percentages See the section Var19 Analog Input Type and Function Variable for more information For the Wind Unwind with roll compensation function The span of the analog input is limited to 0 49 to 9 51 VDC or 4 78 to 19 2 mA This corresponds to the 200 ADC to 3900 ADC limitation imposed for error checking because some sensors can roll over Set the lower limit variable Var20 or Var22 to the desired empty roll value in user units This can be inches centimeters millimeters or any other user units Set the upper limit variable Var21 or Var23 to the desired full roll value in user units This can be inches centimeters millimeters or any other user units Var24 Var25 Analog Input Averaging Variables The analog input averaging variables Var24 and Var25 each contain a boolean value indicating whether or not analog averaging has been enabled for their respective analog input With
17. 6 and Var37 are programmed with the values of the ADC input that is programmed for Wind Unwind with Roll Diameter Calculation The ADC Value read when the roll is empty is entered into Var36 The ADC Value read when the roll is full is entered into Var37 This can be done through the Variable menu with the display set to display the ADC being used or more easily and automatically in the diagnostics menu Var36 is related to the Lower limit and Var37 is related to the upper limit variable of the Analog input that is programmed for Wind Unwind with Roll Diameter Calculation This relationship allows the MS320 to calculate the roll size in relation to its programmed empty or bare size allowing roll calculation at startup 34 Ge ELECTRO SENSORS A Appendix A Panel Cutout Dimensions To install the controller into an instrument panel Remove the mounting brackets Slide the controller into the panel cutout Replace the mounting brackets and tighten the bracket screws do not over tighten the bracket screws Allow a minimum of 1 5 inches clearance on all sides of the controller 2 58 PANEL CUTOUT TB1 Las 35 Ge ELECTRO SENSORS FY Appendix B Wiring the MS320 Sensor Power Supply Output TB2 6 TB2 5 Power for sensors is provided by terminals TB2 6 12 VDC unregulated and TB2 5 Sensor Common The maximum current available at TB2 6 is 100 mA One shielded cable should be used for each sensor with the
18. GEN ELECTRO SENSORS NY Motor Control Solutions MS320 User s Manual User Manual Part Number 990 000300 REV F MS320 User s Manual Part Number 990 000300 REV F Electro Sensors Inc 6111 BLUE CIRCLE DRIVE MINNETONKA MN 55343 9108 www electro sensors com sales electro sensors com tech electro sensors com Local 952 930 0100 Toll Free 800 328 6170 Fax 952 930 0130 Copyright 2003 Electro Sensors Inc All rights reserved No part of this document can be duplicated or distributed without the express written permission of Electro Sensors Inc While the information in this manual has been carefully reviewed for accuracy Electro Sensors Inc assumes no liability for any errors or omissions in the information Electro Sensors Inc reserves the right to make changes without further notice to any part of this manual or to any product described in this manual Modbus is a trademark of Modicon Inc Lookout is a trademark of National Instruments Inc ELECTRO SENSORS A Table of Contents Introduction to This Manual scsi inida aiiai i ia Adi kAd aTa aa taa iit 6 Introduction to This re EEN 7 The User Intertace 00 i ities naan a Med be 8 Interpreting the Function Code Conventong nono nono ron rn n on ron ran nr n rra n rra nr narran nrnns 9 Reading the User Interface Tables cocina Added iii 10 The User Interface Tables ciao adds 10 VAR Menu How to Change a User Vaable nooo nconnnnnnonn non nrnnnonni
19. R key 2 Variable Ambe number and go to level 3 Number PR Abort the changes to the user variable number and go back VAR key to level 1 E Arrow keys and the Edit the display decimal point Change Accept the user variable value 3 User User variable and i level 1 ENTER key Variable value XXXX g Value Abort the changes to the user variable value and go back to VAR key level 1 Not all variables accept a decimal point Some of the variables that allow a decimal point are restricted to having decimal points that match those in a related variable For more information see Appendix D Variable Value Logs for information on which variables accept a decimal point 10 SETPT Menu How to Change a Setpoint Ratio ELECTRO SENSORS A Level i Level Description Display Value Task Task Key E GE User units User Units Select the setpoint menu and 3 1 tachometer SETPT key Tachometer XXX go to level 2 Up and down arrow Edit the display keys Setpoint Accept the setpoint number 2 SE number and go to level 3 ENTERIN SPOX Abort the changes to the setpoint and go back to level SETPT key Edit the display Arrow keys Accept the setpoint value and 3 Change Setpoint value go to level 1 EER Sy Setpoint XXXX Abort the changes to the setpoint and go back to level SETPT key 1 The up and down arrow k
20. The following formula is used by the MS320 to calculate the speed of the follower system All quantities in the formula are user Vars accept for the Lead and Follower RPMs Lead RPM Ratio Setpoint FollowerRPM MaximumLeadRPM Unity Ratio User Unit MaximumFesdbackRew For details on Var01 Var02 and Var03 see the section Var01 Var02 Var03 Feedback Variables Master Mode Operation User Variable 4 Maximum Lead RPM is the maximum revolutions per minute of the shaft on which the lead sensor is mounted when the lead line speed is at its desired maximum value User Variable 5 Lead PPR is the number of pulses generated by the lead s feedback device in one revolution of the shaft whose speed is being sensed User Variable 6 Unity Ratio User Units allows the user to enter ratio setpoints in user units The default value of Var06 is 1 000 If the ratio setpoint is half of Var06 then the MS320 runs the follower at a ratio of 0 5 of the lead If Var06 is set to the same as Var02 then the user can enter the follower ratio in user units instead of dimensionless ratios As an example two positive displacement pumps mix a solution of two chemicals at a controlled ratio Pump one the lead pump is controlled by a manually operated potentiometer Pump two the follower pump is controlled by an MS320 in follower mode Pump one delivers 100 liters per minute at its maximum speed of 200 RPM and has a 600 PPR
21. alue and return to level 1 the user units tachometer When the user accepts a value the MS320 will test it and will not allow an out of range or illegal value If at any time you don t like the changes that you have made while you are in a particular level press the abort key to discard the changes and go back to level 1 the user units tachometer The SETPT and the SECR menus work in a similar way to allow you to change variable values The DIAG menu will allow you to perform a diagnostic test to perform calibration actions or to observe the state of the system thereby enabling you to set up your system or to troubleshoot your system installation The front panel LEDs are used to indicate which menu you are in or to indicate status information about the MS320 There are five LEDs TACH PROG RUN STOP SET SPD and KEY ERR When a menu key is pressed the LED associated with that menu turns on to indicate which menu you are in Key LED Menu VAR key PROG LED VAR Change User Variable SETPT key SET SPD LED SETPT Change Setpoint Ratio DIAG key All LEDs except the KEY ERR LED DIAG Perform Diagnostic Action Decimal Point key PROG LED and the SET SPD LED SECR Change Security Variable Table 1 Associations Between Keys LEDs and Menus The RUN STOP LED is associated with the run stop input switch It is either ON when the run command is present or it is OFF when the run command is absent and the motor h
22. as stopped The RUN STOP LED flashes for a no feedback alarm The no feedback alarm is disabled if either of the analog inputs is used as the feedback The KEY ERR LED is used to indicate an invalid key press an invalid user variable number or an invalid user variable value It shuts off after a timeout period of 500 ms The TACH LED is ON when the display is showing a real time value selected by the display function variable Var12 ELECTRO SENSORS A Interpreting the Function Code Conventions When programming the values of the user variables some user variables such as the Var03 PPR variable take numeric values while others such as the Var17 switch input control variable allow the user to select among several functions by using function codes If a user variable takes function codes instead of a numeric value the place value of the digit is sometimes associated with a particular item For example in Var17 the switch input one s function code is in the digit one location the switch input two s function code is in the digit two location etc The table below illustrates the convention used to show the user where to place the cursor in order to change the function code associated with an item The digits refer to the four seven segment LEDs of the front panel display The left hand column of the table contains pictures that show which digit is digit one digit two etc The function code convention also applies to some display val
23. definition PIn PdEF To lock out unauthorized changes to user variables the user must enter a password definition unknown to unauthorized users PIn PdEF Any attempt to access the password definition by an unauthorized user will result in a display of HIdn hidden This table indicates how menu access is controlled by the digits of the SAEF security definition variable ie Digit Function Function Codes VAR Menu Digit 1 When this menu is locked the user variables can be viewed but not changed SETPT Menu Digit 2 When this menu is locked the setpoints 0 Menu Unlocked can be viewed but not changed 1 Menu Locked SS 3 Setpoint Scroll DIAG Menu Digit 4 When this menu is locked access to the diagnostic functions are denied Table 7 Security Variable SdEF Security Definition 21 ELECTRO SENSORS FY DIAG Menu The Diagnostic Functions The DIAGNOSTIC menu is accessed by pressing the DIAG key Also see the section DIAG Menu How to Perform the Diagnostic Functions for more information on accessing the diagnostic functions Note The Run Command given by closing the RUN STOP switch input at back panel terminalTB2 1 must be removed before the Diagnostic Menu can be accessed Once inside the Diagnostics Menu press the UP and DOWN arrow keys to scroll through the list of diagnostic functions Each of the diagnostic functions is explained below Anou How to Calibrate
24. dition of the spool is the same as presetting the MAX RPM DAC value Presetting the MAX RPM DAC value helps reduce material waste at the start of a run by preventing the system from having to wait for the PI values P I D proportional and integral algorithm to compensate for the spool diameter Using Var26 the MAX RPM DAC value is preset to the following value preset MAX RPM DAC 3686 Var26 100 For winding applications Var26 is the empty core start up speed command reset percent and is usually 100 since this is when the empty spool turns the fastest for a given line speed This presets the MAX RPM DAC value to 3686 Upon start up the speed command output ramps up towards 100 of Var01 Max Feedback RPM For unwinding applications Var26 is the full core start up speed command reset percent and this is usually less than 100 since this is when the full spool turns the slowest for a given line speed This presets the MAX RPM DAC value to 3686 Var26 Then upon start up the speed command output ramps up towards Var26 of Var01 Max Feedback RPM For unwinding applications the user must use this formula to figure the correct value to enter into Var26 Var26 100 Empty diameter Full diameter Example An unwind application s full core is 40 inches in diameter and the empty core is 10 inches in diameter In this example Var26 is set to 0025 1 e 25 100 10 40 Ifthe application
25. e 60 PPR on ring kit The speed command signal is calibrated to drive the motor 1600 RPM when the speed command signal 1s at 90 of 1ts maximum value The best control results are obtained by programming and calibrating the MS320 to the application specifications not the motor specifications i e 1600 RPM not 1750 RPM Also since 1600 RPM and 100 ft minute is the maximum desired speed for this system any setpoints that the user enters should be 100 feet per minute or less Any setpoints above 100 feet per minute could possibly cause the controller to run out of headroom 14 ELECTRO SENSORS A Var04 Var05 Var06 Lead Variables Follower Mode Operation In follower mode the MS320 controls the line speed of a follower system based on the line speed of a lead system The follower system tracks the changes in the lead system at a user defined ratio Figure 1 MS320 System Diagram shows an MS320 in follower mode behind a lead MS320 in master mode As the lead system changes its rate the follower system mirrors the changes of the lead system To use the MS320 as a follower mode controller the user needs to program six user variables Var01 Var02 Var03 Var04 Var05 and Var06 Together these six variables tell the MS320 what feedback frequency to expect at the maximum line speed what lead frequency to expect at the maximum lead line speed what the units of line speed are and what the units of the ratio setpoints are
26. e can be made with a 1 kV capacitor and a watt resistor in series or they can be purchased in a pre made package Use a capacitance value of 0 1 F or larger and a resistance value of 500 ohms or less When power is stepped down from a higher AC voltage for controllers a capacitor resistor network or other filter should be placed across the secondary 39 Ge ELECTRO SENSORS FY Appendix C MS320 Specifications MS320 Power Supply Requirements Description Input Voltage Fuse External Fuse Required 115 VAC 50 60 Hz 6 VA 1 16 Amp Slo Blo recommended 230 VAC 50 60 Hz 6 VA 1 32 Amp Slo Blo recommended 10 30 VDC 6 Watts 2 Amp Slo Blo recommended Sensor Input Sensor Supply Description 12 VDC unregulated 100 mA max Sensor input type Switch selectable Maximum Input Frequency NPN Open Collector 2200 Ohm pull up to 12 VDC 2 5 V trigger level PNP Open Collector 2200 Ohm pull down to sensor common 2 5 V trigger level Magnetic Pickup 150 mV peak to peak minimum signal 50 mV trigger level 4000 Hz Control UO Standard Inputs Description 3 switch inputs 1 fixed Run Stop 2 programmable Optional Inputs Digital 2 switch inputs programmable Analog 2 channels independently switch selectable as 0 10 VDC or 4 20 mA Optional Outputs 2 Relays programmable with the following specifications 250 VAC 5 A Resistive Load 30 VDC 5 A Resistive Load
27. e the same as that in Var01 If the user wants to display speed in user defined units such as feet per minute or gallons per hour an example of a rate that is not a speed then the value entered in Var02 is the rate at which the user defined unit is processed by the system when the line is running at the RPM programmed into Var01 This rate can be calculated by the user or it can be measured by first running the system with the same value in Var02 as in Var01 and measuring the output of the system User Variable 3 Feedback PPR is the number of pulses generated by the feedback device in one revolution of the shaft whose speed is being controlled After programming these three variables the user should calibrate the speed command signal so that the maximum line speed is reached at 90 of the maximum speed command signal For information on how and why to do this see the section Anou How to Calibrate the Speed Command Signal As an example a master mode controller is connected to a 60 PPR ring kit mounted on a motor with a rated speed of 1750 RPM For this system 100 feet per minute of material is processed when the motor turns 1600 RPM this is the desired maximum line speed The desired display units and the desired setpoint units are in feet per minute The values programmed into the master MS320 would be Var01 is 1600 i e 1600 RPM at max speed Var02 is 0100 Oe 100 feet per minute at max speed Var03 is 0060
28. er to increase the active setpoint using an input switch This function is only available when the system is running at a setpoint In follower mode this function increases the ratio This function works the same as the up arrow on the front panel The scroll setpoint down function enables the user to decrease the active setpoint using an input switch This function is only available when the system is running at a setpoint In follower mode this function decreases the ratio This function works the same as the down arrow on the front panel The master follower function enables the user to select the control mode on the fly overriding Var18 Master mode is the control mode when the switch input is open Follower mode is the control mode when the switch input is closed The closed loop open loop function enables the user to control whether or not feedback is being used to correct deviations from the speed ratio setpoint Feedback is used to correct speed deviations when the switch is open Feedback is ignored when the switch input is closed 10 Input Switch 3 and 4 are only available if the MS320 Option Board is installed 19 ELECTRO SENSORS FY The speed command signal reset is used only for wind and unwind applications This function enables the user to reset the speed command signal to the initial conditions of the spool full or empty When a switch is programmed for this function on power up the MAX RPM DAC is automatically preset t
29. errides the feedback frequency input on TB2 7 An analog input as a lead frequency function The analog value is assumed to be a linear representation of the lead line speed Must set Var05 Lead PPR to 60 converts RPM directly into Hz Lower upper limit variables are the minimum maximum values of the lead frequency in units of Hertz Programming an analog input as a lead frequency overrides the lead frequency input on TB2 8 25 ELECTRO SENSORS An analog input as a master setpoint function The analog value is assumed to be a linear representation of the desired line speed setpoint Lower upper limit variables are the minimum maximum values of the speed setpoints and are in the same user units as Var02 Display Value at Maximum Feedback RPM User Units Programming an analog input as a master setpoint disables or restricts these listed features 1 Switch inputs aren t allowed to change between setpoint one and two nor scroll the present setpoint 2 The front panel up and down arrow keys are not allowed to scroll the present setpoint 3 The SETPT key is only allowed to view the present setpoint An analog input as a follower ratio function The analog value is assumed to be a linear representation of the desired follower ratio Lower upper limit variables are the minimum maximum values of the follower ratios and are in the same units as Var06 Unity Ratio User Units Programming an analog inp
30. erse trim functions For the system to reach effective speed setpoints greater than the nominal speed setpoint the system must be calibrated so the nominal speed setpoint is low enough that the boosted effective speed setpoint does not try to run the system faster than possible i e faster than Var01 Maximum Feedback RPM speed Example If an application needs the trim function to boost the effective setpoint by 100 boost to double nominal speed then the nominal setpoint must run the system at no more than one half of the maximum calibrated speed In this example Var01 is set for the double speed RPM value the speed command output is calibrated to hit double speed at 90 DAC and the nominal setpoint is set to run the system at one half of the Var01 maximum RPM value In short for this example the nominal speed setpoint must be no more than one half the value of the Var02 Display Value at Maximum Feedback RPM An analog input as a Wind Unwind with roll calculation function The analog value is assumed to be a linear representation of the roll diameter The user must set Var05 Lead PPR to 60 converts RPM directly into Hz Lower upper limit variables are the min max values of the roll diameter in either English or metric units The roll calculation is factored when the Run switch is closed eliminating the need to use the system reset MAXDAC switched input option and changing Var26 to reflect roll diameter e
31. ess 26 Figure 3 Effective Setpoint vs Inverse Trim Value cccecccssessseeceesceesceeecesecesecesecaecsaecseecaeeeneeseeeaeeeereeas 27 Figure 4 Analog Input Type DIP Switches and Calibration Dots 30 Figure 5 MS320 Sensor Input Circle atid Mien ak Hee eH eae 36 Figure 6 Sensor Type DIP Switches edel eH Hee Ae OE ee ee 36 Figure 7 MS320 Winne Diagtam issiima Ee Ae wai Bedi ee Re E 38 List of Tables Table 1 Associations Between Keys LEDs and Menus ccoooonocnnonnnonoonnconoconoconocnnconncnn nono ronn ron n ron r nn nr rn nrnnnrinnros 8 Table 2 User Variable Function Code Convention occcooocccnnoncconononccononanononnnanonnnnnnnronnnnnononnnncrnoncnronnn nc rronnnanoos 9 Table 3 Var12 Display Function Codes ccccesccssseeseessecsceeseeeneeeeeeeeeeseensccneecaeeaecaecseceaecaecaecsaeeneeenreeas 18 Table 4 Display Function Code 6 Standard Input Status 18 Table 5 Display Function Code 7 Optional LO Status 18 Table 6 Var17 Switch Input Function Codes ccccescesssssecseeeseeeneeeeceeeeeeeseceseeeeeeeeeeeeenseeeaeeeaeeneeceseeeneens 19 Table 7 Security Variable SdEF Security Definition noc nonnnnonnronnonnnonnronnnannnnns 21 Table 8 Varl4 Relay Output Function Codes ooocoocnocccococononnconncon nono nono nono nonn nono cono no nnonnnnnn ron nron ran ran rin nannnnns 24 Table 9 Var19 Analog Input Type and Funeton nono nnnnn ron nron nr nnnrnn ron nrnnnnnns 25 Table TO Sensor Options ee x eek hoes A A
32. eys or a pair of switch inputs allow the user to scroll the active setpoint ratio Setpoints ratios can only be scrolled when the system is running at the active setpoint ratio See the section Var17 Switch Input Function for a definition of the active setpoint If an analog setpoint ratio function is being used the SETPT key will not allow the user to change the setpoint ratio only view it Also with an analog setpoint ratio function the up and down arrow keys or a pair of switch inputs cannot be used to scroll the setpoint ratio 11 ELECTRO SENSORS SY SECR Menu How to Change the Security Settings Level e Level Description Display Value Task Task Key pe User Units ee Select the security menu and f f 1 Tachomet tachometer o to level 2 Decimal point key achometer XXXX 8 Security variables Select the security variable Up and down arrow keys Accept the security variable Edit input and go to level 3 ENTE Select password Pln 4 Serurity Change password Abort selecting the security Variable definition i PAEF variable and go back to level Decimal point key Define security e lockout SdEF Edit the display Arrow keys Change Security variable Accept the security value and ENTER key 3 Security ay 4 goto level 1 value XXXX Variable Abort the changes and go to A Decimal point key level 1 DIAG Menu How to Perf
33. g output calibration menu until the output percent has been reduced to zero 13 ELECTRO SENSORS FY VAR Menu Programming the User Variables The VAR menu is accessed by pressing the VAR key See the User Variable Log in the Appendix D Variable Value Logs for more information on the user variables and for their default values Also see the section VAR Menu How to Change a User Variable for information on editing the user variables Var01 Var02 Var03 Feedback Variables Master Mode Operation In master mode the MS320 controls the line speed of the master system independent of any other speed in the system Figure 1 MS320 System Diagram shows a controller in master mode in contrast to a controller in follower mode To use the MS320 as a master mode controller the user needs to program three user variables Var01 Var02 and Var03 Together these three variables tell the MS320 what feedback frequency to expect at the maximum line speed what the units of line speed are and what the units of the speed setpoints are User Variable 1 Maximum Feedback RPM is the maximum revolutions per minute of the shaft on which the feedback sensor is mounted when the line speed is at its desired maximum value User Variable 2 Display Value at Maximum Feedback RPM User Units is used to scale the feedback frequency to user units If the user wants to display speed in RPM then the value entered into Var02 would b
34. hen the line speed exceeds the trip point The speed deviation alarm function pulls in the relay when the line speed deviates from the line speed setpoint outside of the range specified by the value stored in the relay trip point variables Var15 Var16 The zero speed function pulls in the relay when the line speed goes to zero The drive enable function pulls in the relay for a run command or a jog command The relay stays pulled in until the speed command signal reaches zero The ramp complete function pulls in the relay when the controller has finished accelerating or decelerating to a speed ratio setpoint User Variable 15 Relay 1 Trip Point level User Variable 16 Relay 2 Trip Point level 24 ELECTRO SENSORS SY Note The Var15 and Var16 trip points are in the same user units as the Var02 Display Value at Maximum Feedback RPM User Units value Also the decimal point locations for the Var15 and Var16 relay trip points are fixed in the same place as the decimal point location in the Var02 value Var19 Analog Input Type and Function Variable User Variable 19 Analog Input Type and Function allows the user to select what function an analog input performs and the type of signal being used The user can choose any function from a set of function codes The following table gives the analog input functions codes and signal types and shows which digits of Var19 correspond to which analog input The default funct
35. iable 32 Speed Setpoint 2 User Variable 33 Ratio Setpoint 1 User Variable 34 Ratio Setpoint 2 The MS320 has a data type limitation to changing certain user variables or setpoints ratios over Modbus If the application requires changing any variable s value containing a decimal point ex Var07 Acceleration Time or Var33 Ratio Setpoint 1 then Var30 must be set to a Float data type in order to have any part of the value to the right of the decimal point transmitted this assumes the Modbus master device uses Float data types In such applications if Var30 is not set to a Float data type then a variable s value is truncated any digits to the right of the decimal point are lost Modbus address 31000 can be used to view the same data as seen on the MS320 front panel display 33 Ge ELECTRO SENSORS FY Serial Communications Wiring Diagram MS320 addr 1 TB4 EXT 5 VDC Host Device t LH an x Gh RX e Rx El Cr EXT COMMON g Ga Common MS320 addr 2 aN TB4 External Power Supply EXT 5 V DC 100 mA min TX TX RX RX EXT COMMON NOTE 100 ohm terminating resistors should be placed between the Rx and Rx terminals of the host device and between the Rx and Rx terminals of the last physical device on the communications network Var36 Var37 Wind Unwind With Automatic Roll Diameter Calculation at Startup The roll diameter variables Var3
36. ide the feedback signal the lead signal the master setpoint the follower ratio the setpoint ratio trim and the setpoint ratio inverse trim functions Programmable switch inputs are standard and optional relay outputs are available MASTER FEEDBACK SIGNAL SPEED COMMAND SIGNAL VARIABLE SPEED eck lt Z g o o lt wi wl VARIABLE Figure 1 MS320 System Diagram Controller Features Master Controller with User Units Display and Setpoints Ratio Follower Controller with User Units Display and Setpoints Run Stop Discrete Input 2 General Purpose Discrete Inputs Sensor Power Supply Additional Option Board Features 2 Additional General Purpose Discrete Inputs 2 SPST NO Relays Modbus RTU Serial Communications 2 Scalable Analog Inputs ELECTRO SENSORS FY The User Interface The user interface consists of a keypad the four character display five discrete LEDs several user variables and four menus the user variable menu the setpoint menu the security menu and the diagnostic menu The four menus are each accessed by a menu key the VAR key accesses the user variable menu the SETPT key accesses the setpoint menu the DECIMAL POINT key accesses the security menu and the DIAG key accesses the diagnostic menu In each of these menus there is an intermediate level level 2 enabling you to select a menu item and a final level level 3 enabling you to change or edit the selected menu item The method for selecting
37. information in this manual or the product described herein without further notices No part of this manual may be photocopied reproduced or translated to another language without the prior written consent of Electro Sensors Inc ELECTRO SENSORS A Introduction to This Product The MS320 is a single axis unidirectional low cost closed loop motor speed controller It is designed to operate either in a stand alone master mode or in a follower mode behind a lead motor The MS320 takes the place of a manually operated speed potentiometer The controller can be used with AC motor drives DC motor drives or any variable speed motor drive that will accept a 0 10 V or a 4 20 mA speed command signal In master mode the controller continually compares the actual line speed the master feedback signal to the desired line speed the user adjustable speed setpoint In order to maintain the line speed at the desired value the controller automatically adjusts the speed command signal to compensate for disturbances to the system This type of control feedback based automatic compensation for disturbances is called closed loop control In follower mode the controller causes the follower system to track the lead system at a user adjustable ratio The lead and feedback signals can be derived from many different types of line shaft encoders and the setpoints or ratios can be entered in user units Analog inputs are optional and can be used to prov
38. involves no winding unwinding then no switch input should be programmed to Var17 function 8 As a result Var26 s value has no effect For simplicity Var26 can be set to 0 the default Notes 1 Var12 function 5 can be used to view the actual MAX RPM DAC value 2 The ratio of Full diameter Empty diameter is also known as the depletion ratio hence Var26 can also be seen as 100 Depletion ratio 3 Var26 accepts values from 0000 to 0100 however values of 0004 or less disable the preset MAX RPM DAC feature This is why Var26 can be kept at 0 for non winding unwinding applications 4 The preset MAX RPM DAC value can range from 3686 when Var26 0100 to 200 when Var26 is 0005 For a properly calibrated speed command output running at Var Maximum Feedback RPM the actual MAX RPM DAC value is about 3686 when Var26 0100 5 For winding unwinding applications once the wind unwind process is complete and a new spool is readied the speed command signal must be reset to the percentage value in Var26 before the new run command is given This is done with a switch input programmed via Varl7 function 8 Switch inputs are controlled by Var17 Switch Input Function 31 ELECTRO SENSORS FY Var27 through Var34 Modbus Serial Communications The MS320 has a serial port that is compatible with Modicon s Modbus RTU serial communications protocol This serial port provides the systems integrator or OEM with the abili
39. ion for the analog inputs is unused Note Besides using Var19 to select the signal type the user must also set the Analog Input s DIP switch according to the signal type See the section Analog Input Calibration for details Display Digits AHHA Digit Function Function Codes E Analog Input 1 Type O a Se 0 Unused 1 Feedback Frequency 2 Lead Frequency Digit 2 3 Master Setpoint Analog Input 1 Function A Folower Ratio 5 Setpoint Ratio Trim 6 Setpoint Ratio Inverse Trim 7 Wind Unwind with core calculation SC Analog Input 2 Type EH A an 0 Unused 1 Feedback Frequency 2 Lead Frequency Analog Input 2 Function EE SE 5 Setpoint Ratio Trim 6 Setpoint Ratio Inverse Trim 7 Wind Unwind with core calculation Table 9 Var19 Analog Input Type and Function Lower and upper limit variables are used to scale the analog input voltages or currents into appropriate system values The lower and upper limit variables are fully discussed later in the section Var20 Var21 Var22 Var23 Analog Input Lower Upper Limit Variables An analog input as a feedback frequency function The analog value is assumed to be a linear representation of the feedback line speed Must set Var03 Feedback PPR to 60 converts RPM directly into Hz Lower upper limit variables are the minimum maximum values of the feedback frequency in Hertz Programming an analog input as a feedback frequency ov
40. l Point Locations Modbus Address Default Value Variable Name Variable Number Range of Values Page Reference Password Definition 0001 9999 Password Input 0001 9999 Security 0000 1111 Definition Display Variable Modbus Variable Default User Range of Geen ier Page Number Address Name Value Value Values Locations Reference 31000 33 The decimal point location for the speed setpoints is fixed in the same place as the decimal point location in Var02 Display Value at Maximum Feedback RPM User Units The decimal point location for the ratio setpoints is fixed in the same place as the decimal point location in Var06 Unity Ratio User Units 43 Feedback Variables Lead Variables Operational Variables Min ELECTRO SENSORS FY User Variable Log Variable Modbus Variable Number Address Name Maximum Feedback RPM Default Value Range of Values 0001 9999 Decimal Point Locations Page Reference Display Value at Maximum Feedback RPM User Units 0001 9999 Feedback PPR Maximum Lead RPM 0000 9999 0001 9999 Lead PPR 0000 9999 Unity Ratio User Units Acceleration Time seconds 0001 9999 Fixed at XXX X Deceleration Time seconds Proportional Value 0000 0100 Fixed at XXX X Integral Value Jog Percentage Display Function Switch Input Fu
41. le 12 Display Function controls which real time value is displayed by the user interface The default function code is 0 tachometer ratemeter The following table gives the display function codes and a description of their meanings Display function codes 6 and 7 are interpreted by Table 4 and Table 5 Function Code Function Description Display Units 0 Tachometer Ratemeter User Units 1 Ratio Feedback Lead User Units 2 Feedback Frequency Hertz 3 Lead Frequency Hertz 4 Speed Command Signal DAC Value DAC Bits 5 Maximum RPM DAC Value DAC Bits 6 Standard Input Status Boolean State 7 Optional I O Status Boolean State 8 Analog Input 1 ADC Value ADC Bits 9 Analog Input 2 ADC Value ADC Bits 10 Frequency Error Absolute Value Hertz 11 Roll Diameter User Units Var02 Display Value at Maximum Feedback RPM scales the feedback frequency into user units for display function 0 These are the same user units that speed setpoints are set in 7 Var06 Unity Ratio User Units scales the ratio of feedback frequency to lead frequency into user units for display function 1 These are the same user units that ratio setpoints are set in The MAX RPM DAC value corresponds to the Var01 Maximum Feedback RPM Normally this value is about 3686 excessive deviation from 3686 indicates poor calibration However Var26 depending on its value can have an effect on this for winding unwinding applications
42. m to react quickly to increases in the error term thus causing the actual line speed to be closer to the desired line speed Too large a proportional value causes the control loop to become unstable This is because the system cannot keep up with large changes in the speed command signal The proportional value cannot compensate for small differences between the desired line speed and the actual line speed This is because the proportional value does not have very much influence on small error terms 1 e multiplying a small error term by the proportional value results in a value that is too small to affect the speed command signal Var10 Integral Value User Variable 10 Integral Value determines how the controller reacts to steady state errors in the line speed It is used to make corrections to small differences between the desired line speed and the actual line speed The integral value works by continuously adding up the error term and applying the sum to adjusting the speed command signal An entry of 100 means to adjust the speed command signal every 20 ms a 99 means every 40 ms a 98 means every 60 ms and so on The lower the value the slower the correction Var11 Jog Percentage User Variable 11 Jog Percentage is the percent of the speed command signal sent to the variable speed drive when the jog switch is activated The smallest percent allowed is 0 1 16 ELECTRO SENSORS A Var12 Display Function User Variab
43. mA 20 mA Analog Value Figure 2 Effective Setpoint vs Trim Value An analog input as a setpoint ratio inverse trim function The analog value trims the entered nominal setpoint ratio into an effective setpoint ratio The lower and upper limit variables are programmed in percentages The lower limit variable is the brake percentage When the analog input is at 0 V or 4 mA the effective setpoint ratio value is braked to setpoint setpoint lower limit var 100 The upper limit variable is the boost percentage When the analog input is at 10 V or 20 mA the effective setpoint ratio value is boosted to setpoint setpoint upper limit var 100 Braking occurs for analog signals of 0 to 5V or 4 to 12 mA minimum effect is near mid scale Boosting occurs for analog signals of 5 to 10V or 12 to 20 mA minimum effect is near mid scale When the analog signal is at exactly mid scale 5 V or 12 mA no trim adjustment is made 26 ELECTRO SENSORS A Setpoint Ratio Inverse Trim 200 Example of High Limit Boost Percentage 150 L equal to 100 100 lt Nominal Speed Setpoint Example of Low Limit Brake Percentage L equal to 50 y Effective Speed Setpoint with respect to nominal setpt ov 5v 10V 4 mA 12 mA 20 mA Analog Value Figure 3 Effective Setpoint vs Inverse Trim Value Note Concerning the analog input setpoint ratio trim and setpoint ratio inv
44. mber Select Uer from the diagnostics menu The firmware version and revision are displayed in XX XX format The two digits before the decimal point reflect the version number The two digits after the decimal point reflect the revision number The DIAG key exits the firmware version display rESE How to Reset the User Variables to Their Factory Default Values 1 Select rESE from the diagnostics menu Then press the ENTER key This does not reset the processor it only resets the user variables in EEPROM and RAM When the display shows done press the DIAG key to exit 2 Or hold down the DIAG key on power up When the display shows rESE then release the DIAG key This disables the processor watchdog refresh forcing the processor into reset It also resets the user variables in EEPROM and RAM No Feedback Protection In the event that the digital feedback signal is lost from the feedback encoder the MS320 ramps the speed command signal to zero The ramp rate is the Var08 deceleration time The MS320 flashes the RUN STOP 23 ELECTRO SENSORS SY LED to indicate to the user that it has detected a no feedback condition To clear the no feedback condition the user needs to apply a stop command via the RUN STOP switch Once the no feedback condition has cleared then the MS320 will accept a run command No feedback protection is disabled if an analog input is used for the feedback frequency input This
45. mum Feedback RPM User Units 15 Either zero or one is allowed in the first and third digits Zero through six are allowed in the second and fourth digits The values in the second and fourth digits are mutually exclusive with each other except for the value zero which can be in either or both of the second and fourth digits 45 ELECTRO SENSORS Dj This page is intentionally left blank 46 ELECTRO SENSORS 47 MS320 User s Manual Back Cover Part Number 990 000300 REV F MEN ELECTRO SENSORS Kg Electro Sensors Inc 6111 BLUE CIRCLE DRIVE MINNETONKA MN 55343 9108 www electro sensors com sales electro sensors com tech electro sensors com Local 952 930 0100 Toll Free 800 328 6170 Fax 952 930 0130
46. nction Control Mode Speed Command Signal Reset Percent 0000 0100 000 0 100 0 0000 0010 o0 8 0000 0001 0000 0100 Fixed at XXX X None None None 13 Zero through eight in each digit The value in each digit is mutually exclusive with the values in the other digits 44 User Variable Log Option Board Modbus Address Variable Number Variable Name Relay Output Function Relay 1 Trip Point Default Value Range of Values 0000 0055 0000 9999 Ge ELECTRO SENSORS A Decimal Point Locations Page Reference Relay Variables o D Ee K _ o gt S J 2 D 2 be lt lt Relay 2 Trip Point Analog Input Type and Function Analog Input 1 Lower Limit Analog Input 1 Upper Limit Analog Input 2 Lower Limit Analog Input 2 Upper Limit Analog Input 1 Averaging Enable Analog Input 2 Averaging Enable Modbus Node Address 0000 9999 0 1 or 0 6 0000 9999 0000 9999 0000 9999 0000 9999 0000 0001 0000 0001 0001 0247 Modbus Baud Rate 0000 0004 Modbus Variables Modbus Parity Modbus Data Type 0000 0002 0000 0005 Empty roll ADC value 0200 3900 Roll Size Variables Full roll ADC Value 0200 3900 14 The decimal point location for the relay setpoints is fixed in the same place as the decimal point location in Var02 Display Value at Maxi
47. nes 10 SETPT Menu How to Change a Setpont Rato noc nono nnnnnconn ron nrnn nono ran rnnnnnnnss 11 SECR Menu How to Change the Security Settings ooooooonnnnncnincnconnoonconoconocnnono nono ncon ccoo nono ronnrnnnnnannos 12 DIAG Menu How to Perform the Diagnostic Functions oooonocnnocnionoonconnconnconccnonnnconnonn nono nonnrnnrnnnnnos 12 DIAG Menu How to Perform the Diagnostic Functions COnt ooooooconincnonnnocnconononccnnconnonononnnnanonanonos 13 VAR Menu Programming the User Varables narrar rn 14 Var01 Var02 Var03 Feedback Variables Master Mode Operaton 14 Var04 Var05 Var06 Lead Variables Follower Mode Operaton 15 Operational Variables ada 16 Var07 Acceleration O Eege EES 16 Var08 Deceleration Ti a eae wero 16 NA O 16 NADA O 16 CVarlil Jos PC tae 16 Varl2 Display Function iia dot 17 Varl 7 Swatch Input Eonia bea eR 19 Varts Control Modest 20 SECR Menu The Security Variables ooooocnccnnnnininnnconcccononannnccnnancccnnncn rana 21 DIAG Menu The Diagnostic FUNCTIONS cceceeeceeeeeeeeeeeeeeeeeeeeeeee cae eeeaaeeeeaaesecaeeesaeeseaaeeeeeeesaas 22 Anou How to Calibrate the Speed Command Seng 22 Slo How to Test the Standard Switch Inputs 20 0 0 ccceccececsceesseeeeeesceeeceeceseensecaecaecsaecaeecaeeeseeeaeeneeeereeas 23 oPIo How to Test the Optional UO 23 HEyP How to Verify That the Keypad is Working 23 roll How to set the bare and full core values nono nro o ron
48. nnections to the controller are considered signal unless they carry AC power Never use a shielded cable with unused conductors The unused conductors act as antennas Attempting to tie the unused conductors to ground or other signals just creates different antenna configurations In many cases unshielded wire would have received less electrical noise Always insure that a shielded cable with the correct number of conductors is pulled All control signals must be separated from power wiring Power wiring includes any AC or DC voltages with a current potential of greater that 1 A or a voltage greater than 24 V This includes but is not limited to 115 VAC 230 VAC and 460 VAC Do not bundle shielded cables and power wiring together Do not run signal cables along high magnetic or electrostatic generators This includes but is not limited to motors fans contactors igniters etc Aluminum shielded cable does not stop magnetically induced noise braided shielded cable only partially reduces magnetically induced noise An earth ground wire must be installed on microprocessor based controllers when it is specified Do not rely on enclosure contact with the panel for earth ground Earth ground is often used in noise rejection circuitry and is not just a safety factor Contactors solenoids and relay coils on the same AC power or in the same enclosure panel as the controller must be suppressed with a capacitor resistor filter across the coil Thes
49. o the value set by Var26 When this switch is closed the MAX RPM DAC is manually preset to the value set by Var26 See the section Var26 Wind and Unwind Applications for more information on Var26 Var18 Control Mode User Variable 18 Control Mode determines whether the MS320 is being used as a master controller or a follower controller A value of 0 corresponds to master mode and is the default value A value of 1 corresponds to follower mode If a switch input is programmed to manipulate the control mode then the value of Var18 is overridden by the state of the switch input 20 ELECTRO SENSORS A SECR Menu The Security Variables The SECURITY menu is accessed by pressing the DECIMAL POINT key See the Security Variable Log in the Appendix D Variable Value Logs for more information on the three security variables and for their default values Also see the section SECR Menu How to Change the Security Settings for information on editing the security variables In the security menu the user has access to these three variables PIn Password input variable PdEF Password definition variable SdEF Security definition variable The security features defined by the security definition variable SdEF are enabled anytime the password Pin is different from the password definition PdEF To access locked out functions the user must enter an input password matching the password
50. og Input 2 Select DIP Switch 2 Figure 4 Analog Input Type DIP Switches and Calibration Pots Analog Input Type DIP Switch 3 is not used 30 ELECTRO SENSORS A Var26 Wind and Unwind Applications without automatic diameter calculation at startup In typical wind and unwind applications the material being wound or unwound is required to travel at a constant surface speed or line speed The feedback sensor needs to be mounted so that it measures the line speed of the material rather than the speed of the motor driving the spool When the feedback encoder is mounted on a line shaft not a motor shaft the ramp times Var07 and Var08 are the acceleration and deceleration times of the material being wound unwound and not those of the wind unwind motor In winding applications the spool fills and in unwinding applications the spool depletes In either case if the line speed is to remain constant then the spool speed must change as the spool diameter changes The MS320 maintains a constant line speed for wind and unwind applications by internally compensating for the speed changes in the spool The MS320 does this by adjusting the MAX RPM DAC value User Variable 26 Speed Command Signal Reset Percent allows the user to preset the speed command signal for the start up condition of the spool full or empty Using Var26 along with a Var17 function 8 programmed switch input to preset the speed command signal to the start up con
51. orm the Diagnostic Functions Level Level Description Display Value Task Task Key _ _ _ _ __ 2 User units a 1 een Lee etiam mens piso XXXX Roll diameter Set Select the diagnostic comp roll b Up and down arrow keys function Analog output calibration Anou For Roll Compensation go to Standard T O test level 2a For all other Select Slo 2 Diagnostic 5 e SS ge selections accept the ENTER key Function p n diagnostic function and go to oPIo level 3 Keypad test HE Pp F a i Fi 4 Abort selecting the diagnostic irmware R E ue function and go back to level DIAG key Reset TESE A Reeds DC value Select sub Function Up and down arrow keys For empty core Select bare 2a Diagnostic Read ADC value Accept displayed function ENTER key Funchon For empty core Full o Abort setup DIAG key If the user enters an incorrect password into the password input variable then the password define variable will not allow the user to see the present password it will only display Hidn See the section SECR Menu The Security Variables for information on how to define the security lockout 12 ELECTRO SENSORS A DIAG Menu How to Perform the Diagnostic Functions cont Level y Level Description Display Value Task Task Key Perform Ch h
52. ot be used for the expected normal operating range For best control there should be at least 10 of analog input headroom leftover above and beyond the expected normal operating range This to allow for events such as over speeds over corrections etc Set the lower limit variable Var20 or Var22 to the desired frequency or ratio value occurring at 0 V or 4 mA input The expected normal max frequency or ratio should occur at 90 of the analog input 9 V or 18 4 mA However the upper limit variable Var21 Var23 is hard coded to associate with a 10 V or 20 mA input Hence the user must follow these three steps to arrive at a correct upper limit value for Var21 or Var23 1 Figure the maximum desired frequency or ratio value this is to occur at 9V or 18 4 mA input 2 Inflate this maximum desired value by 111 1 e 1 90 to get an upper limit value associating with a 10 V or 20 mA input 3 Enter this inflated value into the upper limit variable Var21 or Var23 Example An analog input is programmed as a feedback frequency function Var01 Maximum Feedback RPM is set for 1800 RPM i e 1800 Hz in this case Var03 Feedback PPR is set for 60 converts RPM directly into Hz An analog input of 9 V or 18 4 mA is to be seen as the expected normal operating range s maximum feedback frequency of 1800 Hz To have 9 V or 18 4 mA be seen as 1800 Hz this means the upper limit variable associating with 10 V or 20 mA must be entered as
53. out an assigned function set Var19 0101 Set Varl2 to either 8 or 9 to display ADC bits depending on which Analog Input is being calibrated Apply the maximum signal to the analog input s back panel terminals Ifthe Analog Input is to be used as a 0 10 V input apply 10 0 Vdc Ifthe Analog Input is to be used as a 4 20 mA input apply 20 00 mAdc Note Terminals TB4 7 and TB4 9 for Analog Input 1 Terminals TB4 8 and TB4 9 for Analog Input 2 Calibrate the Analog Input by adjusting its corresponding Analog Input Pot until the display reads or toggles between 4094 to 4095 ADC bits See Figure 1 below for the Analog Input Pot locations Note If the Analog Input is calibrated firmly at 4095 ADC bits then it is difficult to determine if it is saturated at 4095 Hence it is better if it is calibrated just below 4095 1 e toggles between 4094 to 4095 to prevent ADC saturation Apply the minimum signal to the analog input s back panel terminals this step for verification only Ifthe Analog Input is to be used as a 0 10 V input apply 0 0 Vdc Ifthe Analog Input is to be used as a 4 20 mA input apply 4 00 mAdc Display should read 0 to 1 ADC bits this step for verification only Set Var12 back to the desired real time display selection Done Analog Input 1 Pot Analog Input 2 Pot Analog Input Type DIP Switches Analog Input 1 Select DIP Switch 1 Anal
54. s address space by incrementing the Modbus register address by ten every time we increment the user variable number by one This does two things for us one it allows space for 32 bit values and two it prevents reading or writing consecutive user variables Not allowing access to consecutive user variables has the effect of giving the MS320 some breathing room We are not overloading the controller with too many communications requests that prevent it from accomplishing its primary function motor control The serial communications port is located on TB4 of the MS320 option card The port has connections for one balanced RS 485 tri state driver one balanced RS 485 receiver their reference common and external 5 VDC power The serial port is electrically isolated from all other MS320 circuits and terminals however the user must supply external 5 VDC power to the port See Figure 7 MS320 Wiring Diagram If the MS320 receives a query with a parity error an overrun error a framing error or a CRC mismatch then the MS320 will ignore the query and not transmit a response The MS320 will transmit an exception response containing an exception code if it receives an illegal function code 01 an illegal data address 02 or an illegal data value 03 For more information on the Modbus protocol go to www modbus org The following variables can be used to change the speed setpoint ratio over Modbus User Variable 31 Speed Setpoint 1 User Var
55. the Speed Command Signal MS320 models can have either a 0 to 10V or a 4 to 20 mA speed command signal Proper calibration of the speed command signal to the variable speed motor drive used by the application ensures two things One the full range of the 12 bit DAC is available Two there will be enough signal headroom for the MS320 to compensate for loads on the system Note Ifthe MS320 is incorrectly set up and calibrated to run at the maximum line speed when the speed command signal is 100 then the system may be unable to compensate for a load on the system This because the MS320 is unable to raise its speed command signal above 100 Use the following procedure to calibrate the speed command signal 1 Verify the MS320 uses the same speed command signal as your motor drive 0 10V or 4 20 mA 2 Verify the MS320 s speed command signal terminals TB1 5 and TB1 4 are connected to the motor drive s signal input terminals 3 Program Var01 Max Feedback RPM and Var03 Feedback PPR to proper values for the application 4 Select Anou from the diagnostics menu The display reads in percent of speed command signal it should be 00 Enable the motor drive 5 With the speed command signal at 00 adjust the OFFSET pot clockwise until the motor creeps Then turn the OFFSET pot counter clockwise until the motor just stops This compensates for any dead band in the drive See Figure below for OFFSET pot location 6 Use
56. the corresponding digit of the display is a 1 When a switch input is open the corresponding digit of the display is a 0 or blank The right arrow key pulls in relay output 1 and sets the corresponding digit of the display to a 1 The left arrow key pulls in relay output 2 and sets the corresponding digit of the display to a 1 The ENTER key drops out both relays and clears the corresponding digits of the display to 0 The DIAG key exits the optional I O test See the section DIAG Menu How to Perform the Diagnostic Functions for more information HEyP How to Verify That the Keypad is Working Select HEyP from the diagnostics menu Each key corresponds to a unique display Press each key to test its response The DIAG key exits the keypad test See the section DIAG Menu How to Perform the Diagnostic Functions for more information roll How to set the bare and full core values Select roll from the diagnostics menu Variable 19 must be programmed for Wind Unwind function Press arrow up or down to display bArE or Full as needed Press the Enter key to display the Analog to Digital Converter ADC value When the value is between 200 and 3900 inclusive press the enter key The DIAG key aborts the setting of the bArE and Full values See the section DIAG Menu How to Perform the Diagnostic Functions for more information Uer How to Find Out the Firmware Version Nu
57. the up and down arrows to scroll the speed command signal to 90 After momentarily displaying 90 the display automatically switches over to an RPM display Note The unused 10 allows for speed correction headroom at maximum speed The drive motor must be capable of 10 over the RPM in Var01 7 Adjust the SPAN pot until the RPM programmed into Var01 is obtained Clockwise increases the speed and counter clockwise decreases the speed See Figure below for SPAN pot location 8 The speed command signal must be scrolled back to 00 before pressing the DIAG key to exit the calibration mode SPEED COMMAND SIGNAL OFFSET POT SPEED COMMAND SIGNAL SPAN POT MS320 OPTION BOARD 22 ELECTRO SENSORS A Slo How to Test the Standard Switch Inputs Select Slo from the diagnostics menu The display shows the status of the RUN STOP switch and the two general purpose switch inputs When a switch input is closed the corresponding digit of the display is a 1 When a switch input is open the corresponding digit of the display is a 0 or blank The DIAG key exits the switch input test See the section DIAG Menu How to Perform the Diagnostic Functions for more information oPlo How to Test the Optional I O Select oPlo from the diagnostics menu The display shows the status of the two optional switch inputs and the two optional relay outputs When a switch input is closed
58. ts standard and optional require that an AC voltage be applied in order to activate their respective function The applied AC voltage must be the same as that supplied to TB1 1 line input See the section Var17 Switch Input Function for more information Power Supply Input TB1 1 TB1 2 The standard MS320 uses 115 VAC power 230 VAC power input is available as an option External fusing must be provided by the customer The recommended fuse size is 1 16 A Slo Blo for 115 VAC and 1 32 A Slo Blo for 230 VAC Note TB1 1 is the AC line terminal TB1 2 is the AC neutral terminal Relay Outputs TB3 5 TB3 6 and TB3 7 TB3 8 These relays are normally open and are controlled by Varl4 Varl5 and Var16 Each of the two relay outputs are rated as 250 VAC 5 A Resistive Load 30 VDC 5 A Resistive Load Note TB3 5 and TB3 6 are Relay Output 1 terminals Note TB3 7 and TB3 8 are Relay Output 2 terminals Serial Communications Connections TB4 1 through TB4 6 TB4 1 is external 5Vdc power input for serial communications circuit TB4 2 is TX TB4 3 is TX TB4 4 is RX TB4 5 is RX TB4 6 is common for external 5 Vdc power input for serial communications circuit 37 ELECTRO SENSORS WB Wiring Diagram MS320 STANDARD WIRING DIAGRAM NOTE THIS DEVICE MUST BE EXTERNALY FUSED WITH A 1 16 AMP SLO BLO FUSE LINE L1 NEUTRAL L2 O LINE OR L1 O NEUTRAL OR L2 MS320 WIRING
59. ty Using a faster baud rate does not improve throughput because of the fixed query response cycle time 100 to 150 ms Valid values for Var28 are 0 1200 BAUD 1 2400 BAUD 2 4800 BAUD 3 9600 BAUD default 4 19200 BAUD User Variable 29 Modbus Parity the user can disable parity checking use odd parity checking or use even parity checking Make your selection based on what configuration the slave needs to have in order to be compatible with the network Valid values for Var29 are 0 No Parity default 1 Odd Parity 2 Even Parity User Variable 30 Modbus Data Type the slave must use the same data type as the master Different slaves can use different data types as long as the data type of the slave s response is the same as the data type of the master s query Valid values for Var30 are 0 Float High Low 32 bit Transmit Most Significant Word First 1 Float Low High 32 bit Transmit Most Significant Word Last 2 Long High Low 32 bit Transmit Most Significant Word First 3 Long Low High 32 bit Transmit Most Significant Word Last 4 Signed Integer default 16 bit 5 Unsigned Integer 16 bit 32 ELECTRO SENSORS SY The MS320 has connections that enable it to communicate on a four wire RS 485 bus However since the Modbus network is a half duplex query response type of network no one on the network should be talking out of turn This implies that we
60. ty to read display values or read and write user variables from a remote command and control center The MS320 has enough versatility due to its support of standard Modbus function codes and data types to act as a Modbus slave for any SCADA package or HMI that supports the Modbus RTU protocol For example National Instruments Inc has a SCADA package called Lookout Modbus is a master slave query response multi drop network The bus master is typically a PC running a SCADA Supervisory Control And Data Acquisition package or an HMI Human Machine Interface Each slave on the network talks only to the bus master and only in response to a query originated by the master Four user variables Var27 Var28 Var29 Var30 not accessible from the Modbus network configure the MS320 to be compatible with your Modbus network Do not change these variables while the master is transmitting queries The master should be disabled before any of these variables are changed User Variable 27 Modbus Node Address each slave must have a unique node address Valid address values for Var27 range from 1 default to 247 Each slave listens to the bus waiting for its slave address to be sent by the bus master poised to act based on the function code and data received User Variable 28 Modbus Baud Rate the MS320 can communicate at baud rates from 1200 to 19200 One important note baud rates are selectable only for the purpose of network compatibili
61. ues for more information on how see the section Var12 Display Function SE Digit Function Function Codes met 0 Function Code 0 Digit 1 Function 1 Function Code 1 S ES Sea 0 Function Code 0 Dies Digit 2 Function 1 Function Code 1 Pi W 0 Function Code 0 Dien Digit 3 Function 1 Function Code 1 Ger To 0 Function Code 0 Digit 4 Digit 4 Function 1 Function Code 1 ee Table 2 User Variable Function Code Convention Ge ELECTRO SENSORS FY Reading the User Interface Tables The following tables provide a detailed guide to each of the four main menus The tables break down each of the menus into levels The rows of the tables indicate which menu activities are available at each level The columns indicate what the display value is what tasks can be performed and which task key is used for each task You can work your way through the menu activities by selecting from the tasks available at your present level and then pressing the appropriate task key Items in quotes are the display items and X s are used to indicate unknown values The User Interface Tables VAR Menu How to Change a User Variable Level oe Display Value Task Task Key BE E 2 0 _ 02 _ _ _ _ _ _ _ _ __ _ p User units User Units Select the user variable menu i Tachometer E and go to level 2 VAR Key Edit the display Arrow keys Select User User variable Accept the user eege ENTE
62. ut as a follower ratio disables or restricts these listed features 1 Switch inputs are not allowed to change between ratio one and two nor scroll the present ratio 2 The front panel up and down arrow keys are not allowed to scroll the present ratio 3 The SETPT key is only allowed to view the present ratio An analog input as a setpoint ratio trim function The analog value trims the entered nominal setpoint ratio into an effective setpoint ratio The lower and upper limit variables are programmed in percentages The lower limit variable is the boost percentage When the analog input is at 0 V or 4 mA the effective setpoint ratio value is boosted to setpoint setpoint lower limit var 100 The upper limit variable is the brake percentage When the analog input is at 10 V or 20 mA the effective setpoint ratio value is braked to setpoint setpoint upper limit var 100 Boosting occurs for analog signals of 0 to 5V or 4 to 12 mA minimum effect is near mid scale Braking occurs for analog signals of 5 to 10V or 12 to 20 mA minimum effect is near mid scale When the analog signal is at exactly mid scale 5 V or 12 mA no trim adjustment is made Setpoint Ratio Trim S 200 Example of Low Limit Boost Percentage E a p equal to 50 gt SS s E E Nominal Speed Setpoint 29 3 Example of High Limit Brake Percentage 392 Ges equal to 100 gt ov 5v 10V 4 mA 12
63. very time you restart Var20 Var21 Var22 Var23 Analog Input Lower Upper Limit Variables After setting an analog input s type function and DIP switch the user must program the lower and upper limit variables associated with the input Lower and upper limit variables scale the analog input voltages or currents into appropriate system values Lower limit variables scale the analog input when at OV or 4 mA Upper limit variables scale the analog input when at 10V or 20 mA Any analog input value between the OV 4 mA and 10V 20 mA endpoints is scaled linearly proportional between the lower and upper limits User Variable 20 Analog Input 1 Lower Limit User Variable 21 Analog Input 1 Upper Limit User Variable 22 Analog Input 2 Lower Limit User Variable 23 Analog Input 2 Upper Limit What values to enter into the lower upper limit variables depends on the analog input function chosen For the Master Setpoint function The full span of the analog input can be used as the normal operating range 0 to 10V or 4 to 20 mA Set the lower limit variable Var20 or Var22 to the desired setpoint value in User Units occurring at 0 V or 4 mA input Set the upper limit variable Var21 or Var23 to the desired setpoint value in User Units occurring at 10 V or 20 mA input 27 ELECTRO SENSORS FY For the Feedback Frequency Lead Frequency and Follower Ratio functions The full span of the analog input should n
64. which menu item to edit depends on what menu you are in In the VAR menu use the up down left and right arrow keys to edit the two digits of the user variable number In the SETPT menu use the up and down arrow keys to edit the single digit of the setpoint number In the SECR security menu and in the DIAG menu use the up and down arrow keys to scroll through menu item prompts Once a menu item has been chosen press the ENTER key to move to the final level level 3 to edit the variable value or perform the diagnostic action To edit a user variable value use the left and right arrow keys to move the cursor the flashing digit to the digit whose value you want to change then use the up and down arrow keys to change the value of the digit Press the ENTER key to accept the value or press the abort key to throw away the changes that you have made The abort key depends on which menu you are in i e the VAR key enters the user variable menu and the VAR key aborts the user variable menu For example to change a user variable value press the VAR key to go to level 2 select user variable number While in level 2 edit the display so that it shows the user variable number whose value that you want to change Then press the ENTER key to accept the user variable number and go to level 3 change user variable value While in level 3 edit the display so that 1t shows the new user variable value Then press the ENTER key to accept that v

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