TR400SGA User Manual
Contents
1. ss 15 Switch inputs CE1 7 to TBIS9 l paqana al m iii ae 15 4 20 mA Analog Input TB2 10 TB2 15 x oS Ra Te Het RIP 15 4 20 mA Analog Output TB1 16 to TB1 18 hannerne 15 Relay Outputs TB3 1 to 3 18 505 pue pH PRODOTTI ER 15 Wiring Diagfams a us sn ua nia DER iin RO DURER PURUS DEDOS Dn 16 Waring Diagrams continued eee rer trn AR te ter E VO Ent Pr REDE RENT 17 iii Appendix C PM500 Specifications oisi tete sense ESEL 18 Variable LO gS iiss eee Pate e eee BB ki 19 User Variables Log io eo ee has et eit A Pee eS ee ad 19 Communication Variables Log ua nuusan nent en pa Ban Shen pain 20 Calibration Variables BIS Pedes uet sa tes 20 Security Variable Log e hee ii ivi eei e pue tutes 20 Mdex ios cose ERR SLEM SENE 21 PM500 Users Manual Back Cover l Ee da m eee a tie a tet halus 26 List of Figures Figure 1 PM500 Winne ss Roe ias up 16 Figure 2 2 Relay outputs wiring diagrammes 17 Figure 3 6 Relay outputs wiring diagrammes 17 List of Tables Table 1 Associations Between Keys LEDs and Menus siens 1 Table 4 How to perform diagnostic functions ss 3 Table 5 Security Variable SdEF Security Definition ss 42. DP Variable Default User Modbus Page Number Variable Name Value Value Range of Values move Address Ref enabled 40 Rael ir offset 10465 0000 FFFF No 41400 41 AE 1 span 52323 0000 FFFF No 41410 42 veer ee offset 40465 0000 FFFF No 41420 43 USTADE 2 52323 0000 FFFF No 41430 span cal 44 DER 0000 FFFF No 41440 offset cal 45 FREI 0000 FFFF No 41450 1 span cal 46 Face 0000 FFFF No 41460 offset cal 47 ae 0000 FFFF No 41470 2 span cal 48 Reserved 0000 FFFF No 41480 49 Reserved 0000 FFFF No 41490 50 Reserved 0000 FFFF No 41500 51 Reserved 0000 FFFF No 41510 Table 10 Calibration Variables Log Security Variable Log Variable Number DP move enabled Default Variable Name Value Range of Values Password Definition 0001 9999 Password 0001 9999 Input X00X X is O or 1 Security Definition Table 11 Security Variables Log 20 4 4 20mA input wiring 15 16 4 20mA output wiring 16 A AC input power wiring 15 16 18 ADC Averaging 6 Analog Input User Units Lower Cal Point 6 Analog Input User Units Upper Cal Point 6 Analog output maximum rate in user units 8 Analog output minimum rate in user units 8 Analog output test 10 Analog outputs response 8 Appendix Panel cut out dimension 13 Specifications 18 Wiring the PM500 15 C Calibrating the input 12 Communications Variable Log 20 D Diagnos
3. ELECTRO SENSORS NY PM500 User s Manual Part Number 990 005700 Rev A Electro Sensors Inc 6111 BLUE CIRCLE DRIVE MINNETONKA 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 2014 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 ii Table of Contents Table of Contents nta Abi 111 RNA iv Hist GET ADIOS ERE E iv Introductionto this Mantal etre os rem na a a Inttoduction to this Produet ss i a wa hum a at n else men nine tt ern vi The User Interface aus bana S u usa a E EE anes RETE SEE CT 1 The User Interface rrr ea tir iere ne tte test 2 DIAG Menu How to Perform the Diagnostic Functions ss 2 SECR Menu How to Change the Security Settings ss 2 VAR Menu How to Change a User Variable 2 Di
4. TL UXXOXXC Displays Firmware Version Firmware Version dOnE rESE Reset Unit Resets Unit to Factory Defaults OFFS ADC value in hexadecimal of the ADC Offset Calibration actively displayed ADC input SPAN ADC Span Calibration ADC value in hexadecimal of the actively displayed ADC input Table 2 How to perform diagnostic functions SECR Menu The Security Variables The SECURITY menu is accessed by pressing the DECIMAL POINT key In the security menu the user has access to three variables The input password variable PIn the password definition variable PdEF and the security definition variable SdEF The security features defined by the security definition variable SdEF are enabled anytime the input password PIn is different from the password definition PdEF In other words in order to access locked out functions the user has to enter an input password that matches the password definition PIn 2 PdEF In order to lock out unauthorized changes to user variables the user must enter a password definition that is unknown to unauthorized users PIn Z PdEF Any attempt to access the password definition by an unauthorized user will result in a display of HIdn hidden The following table indicates how menu access is controlled by the digits of the security definition variable ae Digit Function Function Codes VAR Menu Digit 1 When this menu is lock
5. Var 32 Modb s Parity ete Rd EE EE E ie dec teen de 8 Var 33 Modbus Data Type eet 2258822 srl ete iia 8 Programming the Analog Inputs essen kiss 9 Programming the Relay Outputs s aaa nanam nu tete bnt tte tibi etie een are teet etes etienne ie 9 Programming the Analog Outputs sise 9 The LRC Non volatile Memory Check Feature nooo nooo nono conoce 9 DIAG Menu The Diagnostic Functions sasinen e i iie e a i ni i i ii 10 Anou How to Check the Analog Output sessions 10 Sm How to Check the Switched Inputs ses 10 ELY How to Test the Relay Outputs eed e rer ee re o aee ertet 10 HEyP How to Verify that the Keypad is 10 UEr How to Find out the Firmware Version Number 10 TESE How to Reset the User Variables to their Factory Default Values 10 OFFS How to Calibrate the Analog Input 11 SCAL How to Calibrate the Analog Input nennen rennen 11 Application EXAMPI S reelle Ea n nee td ipse et eee fi ne 12 Appendix A Panel Cutout Dimensions n creed etie een epe tbe i ee Ye RA PR Rec 13 Wiring Practices for Industrial Equipment sise 14 Appendix B Wiaring the PM500 a nt DET D RT ORI E Dp teo Reges 15 AC Input Power Supply TBT 1 TB1z2 notet erepto DURER nor RUE 15 485 communications TB1 4 to TB1 6
6. A Relay Output 1 2 Relay Output 2 0 Unused nder setpoint zi 1 Under setpoi Relay Output 3 2 Over setpoint E Relay Output 4 Table 5 Var08 Relay Output Function Codes The unused function keeps the respective relay permanently dropped out The Under setpoint function pulls in the relay when the 4 20 mA input signal rises to the trip point level and drops out the relay when the 4 20 mA input signal falls below the trip point level by 2 The Over setpoint function pulls in the relay when the 4 20 mA input signal falls to the trip point level and drops out the relay when the 4 20 mA input signal rises above the trip point level by 2 Note The relay hysteresis is fixed at 2 of the Maximum Rate in User Units value Var 09 Switch Input Function This is not implemented at this time Var 10 amp Var 12 Analog Input A amp B User Units at Lower Calibration Point User Variable 10 Analog Input A User Units at lower calibration point typically at 4 mA input User Variable 12 Analog Input B User Units at lower calibration point typically at 4 mA input This variable a k a Minimum Rate in User Units is used to scale a 4 mA signal into a displayed maximum value in user units The value entered into Var 10 amp 12 is the number of user defined units position capacity speed etc processed by the system when the analog input signal is at its lowest calibration point The lowest calibration point is
7. If channel is used Variables 21 amp 22 must be programmed lower and upper setpoints b If channel B is used Variables 23 amp 24 must be programmed lower and upper setpoints c If you want to use the input setpoints to also be the output setpoints set variable 24 analog selection to 0001 This is an easy way to make sure any changes to the inputs will always be reflected in the outputs mirror otherwise leave variable 24 to 0000 and set your outputs independent of the inputs The LRC Non volatile Memory Check Feature The LRC feature is a self check the PM500 performs on its non volatile memory upon power up User variables are stored in the non volatile memory If upon a power up the new LRC sum matches the previous LRC sum from the non volatile memory then the LRC self check passes But if the new LRC sum does not match the previous LRC sum then the LRC self check flags an error An LRC error means the values of at least one variable have been corrupted in the non volatile memory 1 they don t contain all the user s previous values During an LRC error the PM500 goes into a fail safe mode It does not show the real time display but rather shows the message LrC Also for an LRC error the relay outputs drop out and the 4 20 mA analog output holds at 4 00 mA due to the corruption of the user variables To prevent the PM500 from performing abnormally the PM500 essentially stops performing because any inad
8. Relay 2 COM 3 N O Relay 3 N C Relay 3 COM 4 N O Relay 4 N C Relay 4 N C N C N C N C N C N C Aejay OOSWd 68 Z9SvVETL Figure 3 6 Relay outputs wiring diagram Appendix C PM500 Specifications Power Description Input power Standard 115 VAC 50 60 Hz 9 VA Switchable 230 VAC 50 60 Hz 9 VA Fusing internal 100mA TRS Slow Blow recommended for 115 VAC 50mA TR5 Slow Blow recommended for 230 VAC Sensor Supply Description Transducer Power Supply 24 VDC regulated 50 mA max 2 channels Fusing Internal resettable power down remove short and wait 1 min Control I O Description Standard Inputs 2 Switch inputs contact closure Standard Outputs 2 standard or 4 optional SPDT form C fully programmable relays 250 VAC 5 A Resistive Load 30 VDC 5 A Resistive Load Relay update rate 100mS Relay setpoint hysteresis 2 Analog Inputs Description Quantity 2 channels Type 4 20mA Input Resolution 16 bit ADC 151 bits of usable range Accuracy 0 02 uncalibrated 25C typical 0 15 uncalibrated 25 C max 0 25 uncalibrated for full temperature range max ADC update rate 50mS Analog outputs Description Quantity 2 channels Type 4 20mA outputs one associated with each input Resolution 16 bit DAC Accuracy 0 1 uncalibrated 25C maximum 0 15 uncalibrated full temperature
9. Table 6 Var07 ADC select Variable remet ten GRE Ee tas 5 Table 7 08 Relay Output Function Codes ss 3 Table e Var17 Display Function Codes t tate ec aen 7 Table 9 Var17 Display Function Code 4 Relay Output Status eene nennen rennen ene 7 Table 10 User Variable To 2 20 80 e REO se se DIR RR BLEI Ee DRE Ee cheese 19 Table 11 Communications Variables Log TER EN AN 20 Table 12 Calibration Variables Log ertet pipe pH Dr el EUR RE ERR nee Dona sheets 20 Table 13 Security Variables L08 eicere an rn ES 20 iv 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 500 Programmable Process Ratemeter It should serve as your technical resource to install set up operate and test the PM500 Keep in mind that the function of the 500 installed mechanical process is to monitor position capacity speed etc 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 500 The secondary audience would be those persons seeking technical information about the electrical concepts and operation of the 500 Persons installing setting up and operating the 500 should have good knowle
10. usually at 4 mA but that is not a requirement Notes 1 When used with TT420 s this value would typically be 40 2 When used with ST420 s this would be the min value in RPM s the ST420 was programed for 3 When used as a percentage meter the value in Var 10 and Var 12 should be 0 Var 11 amp Var 13 Analog Input A amp B User Units at Upper Calibration Point User Variable 11 Analog Input A User Units at upper calibration point typically at 20 mA input User Variable 13 Analog Input B User Units at upper calibration point typically at 20 mA input This variable a k a Maximum Rate in User Units is used to scale a 20 mA signal into a displayed maximum value in user units The values entered into Var 11 amp 13 is the number of user defined units position capacity speed etc processed by the system when the analog input signal is at its upper calibration point The upper calibration point is usually set to 20mA but that is not a requirement Notes 1 When used with TT420 s this value would typically be 248 2 When used with ST420 s this would be the max value in RPM s the ST420 was programmed for 3 When used as percentage meter the value in Variable 11 and 13 should be 100 Var 14 ADC Averaging Is not implemented at this time Var 15 Analog Input Enable Analog enable is used to enable or disable inputs individually The outputs can be disabled to prevent a sensor error signal when only one sensor is
11. 3 Long Low High 32 bit Transmit Most Significant word Last 4 Signed Integer default 16 bit 5 Unsigned Integer 16 bit Programming the Analog Inputs The ways to get the display and analog output you desire from the 500 are presented below 1 Input is calibrated default is typically accurate enough for temp probes otherwise you will need to go to diagnostics and perform the offset and scale calibrations 2 Verify Input is properly programmed a Ifchannel A is used Variables 10 amp 11 must be programmed lower and upper setpoints b If channel B is used Variables 12 amp 13 must be programmed lower and upper setpoints c Variable 15 must be set appropriately for your input configuration 3 Verify output is programmed Programming the Relay Outputs In order for the relays to operate you must do the following Enter the setpoints for the relays by setting the variables 1 through 4 2 Setthe relays to trigger on the right input by using variable 7 3 Turnon the relay to over or under setpoint tripping in variable 8 Programming the Analog Outputs There are several aspects to getting the display and analog output you desire from the PM500 They are as follows 1 Calibrate inputs Default is typically accurate enough for temp probes otherwise you will need to go to diagnostics and preform the offset and scale calibrations 2 Verify input is properly programmed 3 Verify Program output is properly programmed a
12. being monitored Var 15 selections are e 0000 disables both inputs e 0001 enables input A e 0010 enables input e 0011 enables both the A amp B inputs The default is 0001 Var 16 Factory Calibration Selection When factory calibration select is set to 0001 it makes the ADC inputs use factory calibrated ADC values not the default user calibration value These value are not cleared when resetting the unit They can however be set using the 485 communications When cleared variable 16 is resets to 0000 and the unit uses the default values user set values 6 Var 17 Display Function Select Controls which real time value is displayed by the user interface The default function code is 0 display in User Units The following table gives the display function codes and description of their meanings lif both inputs are enabled pressing the rate key will toggle between the inputs So pressing the rate key will toggle the rate code between 0 and 1 It also will allow toggling between rate code 2 and 3 ears Function Description Display Units Modbus Address Te a nn 0 ADC Process position capacity User Units 30 0 speed etc 1 ADC B Process position capacity User Units 30 0 speed etc 2 ADC current value ADC 1 Bits 0 to FFFF 30xx0 3 ADC B current value ADC 2 Bits 0 to FFFF 30xx0 Boolean St
13. makes the analog output user units track the analog input user units You will not set variables 20 23 as they are ignored When variable 24 is cleared 0000 20 23 again has authority over analog outputs Var 25 Analog Output Response Sets the analog output response time This is the time it takes to change from 10 90 out Time is listed below in seconds This can be used to smooth the output or to filter out slight deviations 1 0 00 7 21 3 2 0 020 8 2 5 3 0 040 9 4 8 4 0 080 10 9 5 5 1 11 20 0 6 0 57 Var 30 Modbus Node Address Modbus Node Address sets the address for Modbus communications values 1 to 247 are valid Var 31 Modbus Baud Rate Modbus baud rate sets the baud rate for Modbus communications values 0 4 are valid 0 1200 BAUD 1 2400 BAUD 2 4800 BAUD 3 9600 BAUD 4 19200 BAUD Var 32 Modbus Parity Modbus Parity sets the parity for Modbus communications values 0 2 are valid 0 No Parity default 1 Odd Parity 2 Even Parity Var 33 Modbus Data Type 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 Values 0 to 5 are valid 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
14. 21 Relay Output 1 as a Under alarm Relay Output 2 as a Over alarm e Relay Setpoint Var01 is programmed at 0002 to trip at 2 display value and 02 is programmed at 0098 to trip at 9846 display value The plant engineer tests the final system by closing the slide gate beneath the hopper bin and verifies that the PM500 reads 0 i e 0 for the 4 mA signal coming from the SG1000x When he runs the slide gate wide open the PM500 shows 100 i e 10096 for the 20 mA signal coming from the SG1000x He notices that when the slide gate was fully closed relay was off and remained so until the slide gate opened up to 4 2 setpoint and 2 hysteresis He also noticed that the PM500 s relay 2 was on the entire time the slide gate was near the fully closed position and remained ON until the slide gate opened up to the 98 open position then relay 2 turned OFF This is the over setpoint alarm he wanted 12 Appendix A Panel Cutout Dimensions To install the PM500 into an instrument panel e Remove the mounting brackets e Slide the PM500 into the panel cutout e 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 PM500 2 58 PANEL CUTOUT I I I I I I 4 31 1 po TB2 ess 13 Wiring Practices for Industrial Equipment 14 1 control signals
15. agnostics eot praemittit ubi quippe trig 3 SECR Menu Th Security Variables oct tte ia ui ERU ENSE enin de 4 User Variable Descriptions and Formats ss 5 Var01 to Var04 Relay Output Setpoints eese eene nne eene enne 5 Var07 Relay ADC Select unten nes nme doe eee IR ee rb nennt bereiste 5 Var08 Relay Output Function sise 5 Var 09 Switch Input FOngtfion annee een sun pado e eie ER ee eb annee Pie innen 6 Var 10 amp Var 12 Analog Input 4 B User Units at Lower Calibration Point 6 Var 11 amp Var 13 Analog Input amp B User Units at Upper Calibration 6 Var T4 ADC Averaping s S Sa olaaa 6 Var 15 Analog Input Enable u l Q eene EE S nennen 6 Var 16 Factory Calibration Selection 00 0 ee eeecesscecssecesncecesceeeccecacessaeeceaceseaeecaceseneecsaeeseaeecaeeeeaeeceresenaeceeeseneeesee 6 Var 17 Display Function Select ss 7 Var 20 amp 22 Analog Output Minimum Rate in User Units ss 8 Var 21 amp 23 Analog Output Maximum Rate in User 8 Var 24 Analog Selection tee eU 3ER e bte Eier e ee ente n ie sU bere qr 8 Var 25 Analog Output Response tette tnter cir 8 Var 30 Modbus Node Address ii enne enne nien nenne rente nr Sa eren 8 Var 31 Modb s B udR te it eie umet RUE tet eh Ae 8
16. ate 0 or 1 see REY See Table 9 for more detail JOE 5 Analog A output DAC value 0 4095 30xx0 6 Analog B output DAC value 0 4095 30xx0 7 Switch Inputs 00XX 30xx0 Table 6 Var17 Display Function Codes ur Digit Function Status Code zd 0 Dropped Out a Relay Output 1 1 Pulled In EE 2 Relay Output 2 CE 2 Relay Output 3 E Relay Output 4 Table 7 Var17 Display Function Code 4 Relay Output Status Var01 Maximum Rate in User Units scales the 4 20 mA analog input signal into user units for display function 0 Var01 Maximum Rate in User Units scales the 4 20 mA analog input signal into user units for display function 0 Var 20 amp 22 Analog Output Minimum Rate in User Units Analog Output Minimum Rate in User Units 4 mA output setpoint Var20 is used to set the point where the 500 will output 4 mA on channel A when the display is at this value Var22 is used to set the point where the PM500 will output 4 mA on channel B when the display is at this value Var 21 amp 23 Analog Output Maximum Hate in User Units Analog Output Maximum Rate in User Units 20 mA output setpoint 21 is used to set the point where the PM500 will output 20 mA on channel when the display is at this value Var23 is used to set the point where the PM500 will output 20 mA on channel B when the display is at this value Var 24 Analog Selection When analog selection is set to 0001 it
17. dge and understanding of electrical and mechanical concepts and principles pertaining to Programmable Process Ratemeters Again the 500 should be installed by qualified personnel only e Installing Electro Sensors Inc products is the responsibility of the purchaser and is in no way guaranteed by Electro Sensors Inc e 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 information in this manual or the product described herein without further notices e No part of this manual may be photocopied reproduced or translated to another language without the prior written consent of Electro Sensors Inc Introduction to this Product The 500 is stand alone display device that accepts up to two 4 20 mA DC analog input signals vi e The display has four 7 segment LED digits with decimal points e The 500 can be programmed to display any value of user units from 700 00 to 9999 and from 0 00 to 999 e The PM500 has either two SPDT relay outputs or four SPDT with programmable functions UNUSED UNDER and OVER The PM500 has an option for 2 16 bit 4 to 20 mA output signals which are isolated from the 4 to 20 mA input signals e The PM500 display has 5 status LED s so you can determine which input you are viewing as w
18. eGate Monitor is programmed to output a 4 mA DC signal when the gate is in the fully closed position and output a 20 mA DC signal when the gate is in the fully open position Any gate position between the fully closed and fully open positions will be represented by the SG1000x output signal being proportionally between 4 mA and 20 mA Typically in such an application the fully closed slide gate position is referred to as being 0 open Likewise the fully open slide gate position is referred to as being 100 open In this example an Electro Sensors PM500 can be used to read the 4 20 mA signal coming from the SG1000x PM500 can be programmed to display the slide gate position as a percentage from 0 open to 100 open The user simply then has to view the PM500 displayed value to know the position of the slide gate at the bottom of the hopper storage bin In this example using Input A the PM500 s variables are set as follows below e ADC select Var 05 is set to xx11 relay 1 and 2 are programmed to use ADC input A e User units for ADC A are programmed Var 10 is set to O and Varll is set to 100 to read 0 100 when the analog input is 4 to 20 mA The plant engineer also wants the PM500 to signal an Under alarm when the gate is in the 2 open position and a Over alarm when the gate is in the 98 open position To accomplish this he programs the PM500 s Relays as follows below e Relay Actuation Var06 to XX
19. ed the user variables can be viewed but not changed DIAG Menu Digit 2 0 Menu Unlocked When this menu is locked access to the 1 Menu Locked diagnostic functions are denied Digit 3 Not used Digit 4 Not used Table 3 Security Variable SdEF Security Definition User Variable Descriptions and Formats Var01 to Var04 Relay Output Setpoints User Variable 01 Variable 04 These variables contains the trip point levels for relays It is a value entered as user units They can have decimal places and be positive or negative Var07 Relay ADC Select User Variable 07 Relay ADC select Var07 allows the user to select the ADC input that is assigned to the given relay output The user can choose from three function codes one is unused The following table gives the relay output function codes and shows which 07 digit corresponds to which relay output uc Digit Function Function Codes i Relay Output 1 Digit 2 Relay Output 2 0 Unused LE B 1 Analog input A E Relay Output 3 2 Analog input B EL Relay Output 4 Table 4 Var07 ADC select Variable Var08 Relay Output Function Allows the user to select the relay output function s The user can choose from three function codes one is unused The following table gives the relay output function codes and shows which 08 digit corresponds to an individual relay output D pi Digit Function Function Codes
20. ell as for indicating when the PM500 is in the programming or diagnostics modes It also signals the user when there is a sensor failure e The PM500 has 2 regulated 24 VDC outputs that can each supply 50 mA maximum This supply can be used to power sensors etc The User Interface The user interface consists of a keypad the four character display five discrete LEDs several user variables and three menus the user variable menu the security menu and the diagnostic menu The three menus are each accessed by a menu key the VAR key accesses the user variable 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 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 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 u
21. m rate in user units CH B 8 24 Analog selection 8 25 Analog output response 8 30 Modbus node address 8 31 Modbus baud 8 32 Modbus parity 8 33 Modbus data type 8 Variables User Variable Log 19 Version number 3 Wiring diagram 16 Wiring practices 14 NOTES 22 NOTES NOTES PM500 User s Manual Back Cover Part Number 990 005700 Rev A ELECTRO SENSORS S 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
22. 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 connections 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 than 1 Amp 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 gr
23. nel LEDs are used to indicate which menu you are in or to indicate status information about the PM500 There are five LEDs Sensor Error PROG INPUT A INPUT B 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 p Decimal Point key PROG LED on amp Disp reads SEC Change Security Variable VAR key PROG LED amp Disp reads Change User Variable DIAG key PROG LED amp disp reads Perform Diagnostic Action Table 1 Associations Between Keys LEDs and Menus The Input A LED is associated with input channel A The Input LED is associated with input channel B The Input LED that is illuminated shows the user which input channel is being displayed l 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 PROG LED is OFF when the display is showing a real time value selected by the display function variable The User Interface Tables DIAG Menu How to Perform the Diagnostic Functions 1 Press the DIAG key 2 Use the arrow keys to select desired variable and press ENTER a When finished hit DIAG key to exit menu 3 Press DIAG key one more time to exit the DIAG Menu Note See table on next page for Diagnostics description SECR Menu How to Change the Security Set
24. ound 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 These 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 uF 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 Appendix B Wiring the 500 15 AC Input Power Supply TB1 1 TB1 2 The standard PM500 uses 115 VAC power 230 VAC Internal fusing is provided within the unit The recommended fuse size is a TR5 100 mA Slow Blow for 115 VAC TR5 50 mA Slow Blow for 230 VAC 485 communications TB1 4 to TB1 6 A two conductor shielded cable should be used for this connection The shield should be tied to the PM500 common not earth ground Switch inputs T1 7 to TB1 9 The switches are contact closure and require only 2 or 3 wires depending on number of switches used Use of signal wire and shielding is advised but is not mandatory 4 20 mA Analog Input TB2 10 TB2 15 A two conductor shielded cable should be used for this connection The shield should be tied to the PM500 common not earth ground 4 20 mA Analog Ou
25. points You are done SCAL How to Calibrate the Analog Input Scale This procedure calibrates the analog input via calibrating the A D converter s high end point The 20 mA high end calibration is initially factory calibrated via defaults This should be more than adequate for temperature probes When necessary recalibration of the analog input is possible to do so follow the instructions below Calibrating the 4 20 mA analog input 1 RD Na 11 Set the display to read the input you want to calibrate The diagnostic will calibrate whichever input is active The front panel LED s will tell you which input is active for calibration Press the Diag key Scroll to SCAL and press enter Set your sensor to its Maximum value 20mA point or a known operating value Press the enter key and the display will start reading the ADC It will display it in Hexadecimal The 175 digit will vary 1 or 2 ADC bits If itis varying more wait until the sensor has settled Press enter to save the value or diag to back out without updating the ADC input Calibration is done for that channel now you should verify that Variable 11 and 13 reflects the point you calibrated You are done Application Examples plant engineer is using Electro Sensors Inc SG1000x SlideGate Monitor to sense the position of a slide gate controlling the amount of grain flowing out of a hopper storage bin The Electro Sensors SG1000x Slid
26. range maximum DAC update rate 25mS Input to Output isolation 1000 VAC isolation Analog input to Analog output 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 Operational Specifications Description Display 4 digits 0 3 seven segment LED 5 Status LEDs Display update rate 5005 18 Variable Logs User Variables Log Variable _ Range of Number Variable Name Values User units limitation User units limitation User units limitation User units limitation User units limitation User units limitation Set Point 1 Set Point 2 Set Point 3 Set Point 4 reserved reserved Analog input User units A Max Value limitation User units limitation Analog input User units B Max Value limitation Analog Input Enable ADC Factory Calibration select Display options Reserved User units limitation Channel B User units 20mA set point limitation Channel B 4mA User units setpoint limitation User units limitation Table 8 User Variable Log Variable Number Communication Variables Log type Table 9 Communications Variables Log Modbus Address Default Range of Variable Name Values Modbus Node Modbus Baud Modbus Parity Modbus Data Calibration Variables Log
27. se 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 it shows the new user variable value Then press the ENTER key to accept that value and return to level 1 the user units display level When the user accepts a value the PM500 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 display level The SECR menu works in a similar way to allow you to change the security variable values The diagnostic 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 five front pa
28. t that is the second most right represents the second switch input 00X0 The DIAG key exits the SIn switch input test rELY How to Test the Relay Outputs Select rELY from the diagnostics menu The display will show the status of the relay outputs The right arrow key pulls in relay output 1 amp 3 and sets the corresponding digit of the display to a 1 The left arrow key pulls in relay output 2 amp 4 sets the corresponding digit of the display to a 1 The ENTER key drops out all relays clears the corresponding digits of the display to 0 The DIAG key exits the rELY Relay Output test HEyP How to Verify that the Keypad is Working Select from the diagnostics menu Each key corresponds to a unique display Press each key to test its response The DIAG key exits the test UEr How to Find out the Firmware Version Number 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 test 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 VarO1 through 08 in both the RAM memory and the non volatile FRAM memory When
29. 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 does everything the rESE diagnostic does but also resets the processor Note After doing a reset to factory defaults the analog inputs may need recalibration 10 OFFS How to Calibrate the Analog Input Offset This procedure calibrates the analog input via calibrating the A D converter s low end point The 4 mA low end is initially factory calibrated via defaults which for temperature probes should be more than adequate When necessary follow the steps below Calibrating the 4 20 mA analog input 1 CU AS Sa 8 Set the display to read the input you want to calibrate The diagnostic will calibrate whichever input is active The front panel LED s will tell you which input is active for calibration Press the Diag key Scroll to OFFS Set your sensor to its minimum value Press the enter key and the display will start reading the ADC It will display it in Hexadecimal The 1 s digit will vary 1 or 2 ADC bits If it varies more wait until the sensor has settled Press enter to save the value or diag to back out without updating the ADC input Calibration is done for that channel now you should verify that variable 10 and 12 reflect the point you calibrated This step can be done after calibrating both channels upper and lower ADC
30. tic functions 10 H How to calibrate the analog input offset 11 How to calibrate the analog input scale 11 How to Check the Analog Output 10 How to Check the Relay Outputs 10 How to reset the unit 10 Introduction to this manual v Introduction to this product vi L List of figures iv List of tables iv LRC display 9 Modbus baud rate 8 Modbus data type 8 Modbus node address 8 Modbus parity 8 P Panel cut out dimension 13 Programming the analog inputs 9 Programming the analog outputs 9 Programming the relay outputs 9 21 Index Relay ADC Select 5 Relay output Setpoints 5 relay test 10 Relay wiring 15 16 Resetting the unit 10 S Specifications 18 Switch input functions 6 T Table of contents iii iv The user interface 1 U User variable log 19 V Variable 01 Relay output Setpoint 1 5 02 Relay output setpoint 2 5 03 Relay output setpoint 3 5 04 Relay output setpoint 4 5 05 Relay ADC Select 5 09 Switch input function 6 10 Analog Input User Units Lower Cal Point CH A 6 11 Analog Input User Units Upper Cal Point CH A 6 12 Analog Input User Units Lower Cal Point CH B 6 13 Analog Input User Upper Cal Point Units CH B 6 14 ADC Averaging 6 15 Analog Enable 4 16 Factory calibration selection 6 20 Analog output minimum rate in user units CH A 21 Analog output maximum rate in user units CH A 22 Analog output minimum rate in user units CH B 8 23 Analog output maximu
31. tings 1 Select the Security menu by pressing the Decimal Point Key 2 Use up and down arrows to select the desired variable a Press Enter b Change variable and accept by pressing Enter Key or aborting change by hitting Decimal Point Key 3 Press Decimal Point Key to exit Security Menu VAR Menu How to Change a User Variable 1 Pressthe VAR key 2 Usethe Arrow Keys to navigate to desired parameter a Press enter key to select or abort by hitting Var Key b Change variable using arrow keys and press ENTER key to accept or Var Key to abort 3 Press Var Key to exit Variable Menu Note Access to the VAR menu is still permitted during an LRC error in the PM500 s non volatile memory Diagnostics Diagnostic Display Value Function You have Entered Diagnostic Mode dIAG dIAG Diagnostics Output percent 0 PR Verify your analog out by scrolling SER from 0 to 100 0 4 mA oe 100 20mA Read current Switch state SIn Switch Input Read current switch state rELY Relay states XX XX Relay 175 0000 Relay two 10 s Relay Test When relays are off 1 value denotes Relay one 100 s on Relay two 1000 s VAR 1111 7 Up arrow key 222 2 REV key 33 33 HeyP Left arrow key 4 444 Tests individual buttons on keypad Keypad Test ENTER 5555 Right arrow 666 6 Decimal point 77 77 Down arrow key 8 888
32. tput TB1 16 to TB1 18 A two three conductor shielded cable should be used for this connection depending on the number of outputs used The shield is not counted as a conductor The shield is tied to the PM500 s common Relay Outputs TB3 1 to TB3 18 Relay wiring is dependent on user needs Wiring Diagrams Note TYPE 1 ENCLOSURE MAX TEMP 60C Line L1 Power 115 VAC THIS DEVICE IS 115VACOR230VAC Neutral L2 Switchable to 230 VAC INTERNALLY SWITCHABLE AND IS INTERNALLY FUSED WITH N C 115 VAC TRS 100mA SLO BLOFUSE C 485A _ 230 VAC TR5 50mA SLO BLO FUSE 485B 485 Shield SW1 Contact Closure SW2 Contact Closure Switch Common 24 VDC Supply Analog Input A Input Common 24 VDC Supply Analog Input B Input Common 4 20mA Out Ch A 4 20mA Out Ch B input Output Common PM500 Wiring Diagram Note If the 3 wire device draws more than 50mA you can use both 24 VDC internal supplies together or use an external 24 VDC supply and disconnect from 500 supply Fuse device to protect input from excess current OREL 24 VDC Supply Analog Input B Input Common Figure 1 500 Wiring Diagram 16 Wiring Diagrams continued e E lt 5 Q COM 1 N O Relay 1 N C Relay 1 COM 2 N O Relay 2 N C Relay 2 Figure 2 2 Relay outputs wiring diagram COM 1 N O Relay 1 N C Relay 1 COM 2 N O Relay 2 N C
33. vertent change to the user variables may have changed its performance The user then obviously knows something is wrong with the PM500 s user variables Note It is important the user fills in their application s values in the User Variable Log near the back of this PM500 User Manual Because if an LRC error does occur then there will be a correct list of variable values to compare to when attempting to fix a corrupted variable situation During a LRC error e Access to the Diagnostic Menu is allowed Access and changes to the Security Menu are allowed having no effect on the LRC error Access to the Var Menu is allowed for read only Changes to the Var Menu are not allowed The unit can be reset to factory defaults 485 communications will continue to work DIAG Menu The Diagnostic Functions The DIAGNOSTIC menu is accessed by pressing the DIAG key 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 Check the Analog Output At this time the 4 20 mA outputs are a fixed calibration This diagnostic allows you to force the outputs to a given out This can be useful for trouble shooting SIn How to Check the Switched Inputs Select SIn from the diagnostics menu The display will show the status of the switch inputs The right most digit represents the first switch input 000X The digi
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