CFW501 - N2 Manual
Contents
1. 11 P0224 RUN STOP SELECTION LOCAL 5 nennen nnt 11 P0225 JOG SELECTION LOCAL SITUATION cniin onn in ean nan nn sn noie ndn naa P ann na en nada 11 P0226 FORWARD REVERSE SELECTION REMOTE SITUATION 11 P0227 RUN STOP SELECTION REMOTE SITUATION 1 nennt nnnm 11 P0228 JOG SELECTION REMOTE ananas nnn 11 P0308 SERIAL 5 c 11 P0310 SERIAL BAUD a Ca soam cai CRX seco ERR EYE CE RE taco can vaca Ru 12 P0311 SERIAL INTERFACE BYTE CONFIGURATION esee esee eene nnne nnnm nnns nnn nnnm nnns 12 P0312 SERIAL PROTOQQL iuis asda cota 13 P0313 COMMUNICATION ERROR 14 P0314 SERIAL WATCHDOG 7c c a 14 P0316 SERIAL INTERFACE STATUS Ray sand mnnn nn 15 P0680 STATUS WORD cci cono re Cea no nS 152. 22 5 1 5 Control System Model DDL 23 6 FAULTS AND ALARMS RELATED TO THE 2 COMMUNICATION 25 128 228 TIMEOUT FOR SERIAL 1 1 nn nnn nn 25 CFW501 4 eq About the Manual ABOUT THE MANUAL This manual provides the necessary information for the operation of the CFW501 frequency inverter using the N2 protocol This manual must be used together with the CFW501 user manual ABBREVIATIONS AND DEFINITIONS ASCII American Standard Code for Information Interchange PLC Programmable Logic Controller HMI Interface ro Read only rw Read write NUMERICAL REPRESENTATION Decimal numbers are represented by means of digits without suffix Hexadecimal numbers are represented with the letter h after the number DOCUMENTS The N2 protocol for the CFW501 was developed based on the following specifications and documents Source Metasys N2 Specification for Vendors 04 3402 22 REVA Jhonson Controls Inc CFW501 5 Introduction to the Serial Communication 1 INTRODUCTION TO THE SERIAL COMMUNICATION In a serial interface the data bits are sent sequentially through a communication channel or busbar Several technologies use serial communication for data transfer including the 5232 and RS485 interfaces The standards t
3. 9 31 olilzc DP 9 3 1 1 Standard plug in module with two RS485 interfaces CFW500 CRS4685 9 3 1 2 Additional plug in modules uU RENE E Ta 10 3 2 Fe ERR ER REDE RR 10 3 2 1 RS485 Interface Characteristics 1 nnns nnne nnt 10 3 2 2 Terminating resistor suntan nece rana nd sentonsecwevdeedseauene 10 3 2 3 efe lo PR 10 3 2 4 Connection with the RS485 10 4 TEM M 11 41 SYMBOLS FOR THE PROPERTIES DESCRIPTION eese eeeeeeen eese ener nennen nnn 11 P0105 1 27 RAMP SELECTION oc kac vum cua one auc vsu Canada c RR E Rz v 11 P0220 LOCAL REMOTE SELECTION 11 P0221 SPEED REFERENCE SELECTION LOCAL SITUATION 11 P0222 SPEED REFERENCE SELECTION REMOTE SITUATION 11 P0223 FORWARD REVERSE SELECTION LOCAL 5
4. Read Field MSG is Fei S8 7 FH General Command Message 8 1 3H_ Upload Messages Optional 9 1 8H Download Message 71 Optional F J MSGletfyDvce The CFW501 inverter presents the commands and subcommands described in table 2 2 Table 2 2 N2 Commands and subcommands for the CFW501 inverter 0 Time Update Message 0 4 JPolMesageNoACK 0 5 JPolMesageWthACK 1 1 jReadHedMSG 2 1 om WieHedMSG 2 7 2 General Command Message Override 7 3 General Command Message Release F MSG IdentfyDevice 7 2 3 POLLING MECHANISM It is defined as an automatic communication mechanism performed by the master with the devices present in the N2 network This allows the slaves to transmit the data that had their values changed from the last polling CFW501 8 Interface Description 3 INTERFACE DESCRIPTION The interfaces for serial communication RS485 available for the CFW501 frequency inverter depend the Selected plug in module for the product Following are presented information about the connection and installation of the equipment using different plug in modules 3 4 PLUG IN MODULES Plug in module for CFW500 Figure 3 1 Example of CFW501 plug in module All plug in modules for CFW501 frequency inverter have at least one standard RS485 interface
5. AS v Po04 DC Link Voltage Ud 0 200 R A4 Hz 20005 Motor Frequency 00 10200 RH A5 wv Po07 Motor Voltage 0 200 R Al 20009 Motor Torque 0000 1000 A7 kw Output Power 00 6635 208 A Vale 10000 10000 AQ 09 amp 10000 10000 AHO 0000 1000 20030 Heatsink Temperature 200 1500 AZ Reserved o os ANS nh 20042 Time Powered 90 6535 R _ n 20043 Time Enabled 1 00 65535 R ANS kwn 20044 kwh Output Energy 0 655 R Al 20048 j PreentAam 0 99 R 20049 Present Faut 0 99 8 20681 Speedin13 bits 7 32768 32767 9 bar 21015 Main PID Feedback 32768 32767 P1016 ManPDOupt 00 1000 R A21 C P1062 External PID Feedback 32768 32767 A22 P1068 _ External PID Output 00 1000 R 5 1 2 ANALOG OUTPUT AO Object It represents an analog output by which its value can be read by the network controller The ANALOG OUTPUT object types for the CFW501 are described at table 5 3 CFW501 21 E n2 objects modeling Table 5 3 ANALOG OUTPUT Object Eng Unit Parameter Access RAW RW RW RW RW RAW RW RW RW RW RW RW 513 BINARY INPUT BI Object It repr
6. 1 Used Off On 12 Used Off On Used Off On BO14 Y Y Intern Manual BO15 Y Y Extern PID Auto Manual 16 Y Y Not Used Off On BO17 Y Y DO1 Off On BO18 Y Y DO2 Off On BO19 Y Y DO3 Off On BO20 Y Y DO4 Off On BO21 Y Y DO5 Off On CFW501 24 ueg Faults and Alarms Related to the N2 Communication 6 FAULTS AND ALARMS RELATED TO THE N2 COMMUNICATION Description is the only alarm fault related to the serial communication indicates that the equipment stopped receiving valid serial telegrams for a period longer than the one programmed in P0314 Operation The parameter P0314 allows programming a period of time during which the equipment must receive at least one valid telegram via the RS485 serial interface with address and error checking field correct otherwise it will be considered that there was any problem in the serial communication The time counting initiates after the reception of the first valid telegram This function can be used by any serial protocol supported by the equipment After the serial communication timeout has been identified the A128 alarm or F228 fault message will be showed the HMI depending on the P0313 programming For alarms if the communication is reestab
7. Fault No Fault Fault BI17 N N DI1 Off On CSBI BI18 N N DI2 Off On CSBI BI19 N N DIS Off On BI20 N N DIA Off On BI21 N N DI5 Off On BI22 N N DI6 Off On BI23 N N DI7 Off On BI24 N N DI8 Off On AO1 Y Y Acceleration Time 100 8 AO 2 Y Y Deceleration Time PO101 s AOS Y Y Serial USB Speed Ref PO683 4 Y Y AOx Value 1 PO696 AOS Y Y AOx Value 2 0697 AO6 Y Y SoftPLC Parameter P1012 AOT Y Y SoftPLC Parameter 4 P1013 Y Y SoftPLC Parameter 16 P1025 PID Aut Setpoint P1011 AO10 Y Y Main PID Man Setpoint P1014 11 Y Y External PID Auto Setpoint P1060 12 Y Y External PID Man Setpoint P1061 BO1 Y Y Ramp Enable Stop Run CSBO BO2 Y Y General Enable Disable Enable CSBO BO3 Y Y Run Forward Reverse Forward 4 Y Y JOG Enable Off On BO5 Y Y Remote Local Remote BO6 Y Y 2nd Ramp Off On Y Y Quick Stop Off On Y Y Fault Reset Off Reset BOS Y Y Not Used Off On Used Off On
8. identified as Serial 1 Besides this interface the standard plug in module for CFW501 has an additional RS485 identified as Serial 1 These RS485 interfaces have the following functions Point to Point Connection with remote keypad only for Serial 1 Connection via RS485 for network operation possible through both Serial 1 and 2 The selection of the function that will be used for the product is made using parameter 12 NOTE 7 It is not possible use the serial interfaces for communication with two different networks The only allowed simultaneous operation is using Serial 1 connected to the remote keypad and another programmed protocol to Serial 2 3 1 1 Standard plug in module with two RS485 interfaces CFW500 CRS485 For the standard plug in module two RS485 interfaces are available via the control terminal using the following pin assignment B Function 0 02 E RxD TxD negative Serial 1 RxD TxD positive Serial 1 OV for the RS485 circuit Serial 1 AN HAH 8 3 11131517192123 Function RxD TxD negative Serial 2 RxD TxD positive Serial 2 OV for the RS485 circuit Serial 2 Table 3 1 RS485 connector pinout for standard plug in module CFW500 CRS485 CFW501 9 Interface Description 3 1 2 Additional plug in modules Other plug in modules can also be used for communication in CFW501 frequenoy inverter However
9. pay attention to the communication interfaces and quantities of available I Os for each plug in module 3 2 RS485 3 2 1 RS485 Interface Characteristics Theinterface follows the EIA 485 standard Itallows communication baud rates from 9600 up to 38400 Kbit s The interface is electrically isolated and with differential signal which grants more robustness against electromagnetic interference t allows the connection of up to 32 devices to the same segment More devices be connected by using repeaters maximum bus length of 1000 meters 3 2 2 Terminating resistor It is necessary to enable a terminating resistor at both ends of the main bus for each segment of the RS485 network There are switches in the CFW501 frequency inverter that can be activated to enable the terminating resistor Refer to the plug in installation guide for details 3 2 3 Indications Details on the alarms communications failures and communication states are made through the keypad HMI and product parameters 3 2 4 Connection with the RS485 Network The following points must be observed for the connection of the device using the RS485 interface Itis recommended the use of a shielded cable with a twisted pair of wires Itis also recommended that the cable has one more wire for the connection of the reference signal GND In case the cable does not have the additional wire then the GND signal must be left di
10. General enable 1 It enables the drive allowing the motor operation This bit is mapped in the object BO2 Bit 2 0 To run the motor in a direction opposed to the speed reference Speed direction 1 To run the motor in the direction indicated by the speed reference This bit is mapped in the object BO3 0 It disables the JOG function 1 It enables the JOG function This bit is mapped in the object BO4 Bit 4 0 The drive goes to the Local mode LOC REM 1 The drive goes to the Remote mode This bit is mapped in the object BO5 Bit 5 O The drive uses the first ramp values programmed in P0100 and 0101 as the motor acceleration Second ramp and deceleration ramp times 1 The drive is configured to use the second ramp values programmed in PO102 and 108 as the motor acceleration and deceleration ramp times This bit is mapped in the object Bit 6 0 It does not execute the quick stop command Quick stop 1 It executes the quick stop command Note This function is not allowed with control types P0202 VVW This bit is mapped in the object BO7 Bit 7 O No function Fault reset 1 If in a fault condition then it executes the reset This bit is mapped in the object BO8 Bits 8 to 12 Reserved Bit 13 0 Automatic Main PID controller 1 Manual This bit is mapped in the object BO14 Bit 14 0 Automatic External PID controller 1 1 Manual This bit is mapped in the object BO15 P0683 SERIAL SPEE
11. and parameters A virtual object made of a collection of N2 objects is the N2 device model as presented at figure 2 1 The N2 specification is made up of Analog Inputs Binary Inputs Analog Outputs Binary Outputs Float Internal Values Integer Internal Values Byte Internal Value Each device can show 256 objects of each type maximum Analog Inputs Analog Outputs q Binary Inputs Virtual Object Binary Outputs Internal values Float Integer Byte Figure 2 1 Virtual object 2 1 N2 MS TP MESSAGES STRUCTURE The Figure 2 2 shows the N2 data frame The N2 data frame uses ASCII hex characters ADDRESS DATA CHECKSUM Figure 2 2 Frame N2 gt character for message starting 1 byte Address address range from 1 to 255 Data device message Checksum used to test the accuracy and validity of the message end of message 1 byte 2 2 gt COMMANDS AND SUBCOMMANDS 2 device data are accessed by commands and subcommands The first character of the data represents the command to be executed Depending on the command it can present a subcommand as shown in Table 2 1 CFW501 7 E INTRODUCTION TO THE N2 COMMUNICATION Table 2 1 2 Commands and subcommands 0 Time Update Message __ Read Memory Diagnostics Message 0 1 4 JPolMesaggeNoACK 0 1 5 JPolMesegeWthACK 8 77 Optional
12. mapped in the BI9 object O General Enable is not active 1 General Enable is active and the drive is ready to run the motor This bit is mapped in the BI10 object 0 The motor is running in the reverse direction 1 The motor is running in the forward direction This bit is mapped in the 11 object 0 Inactive JOG function 1 Active JOG function This bit is mapped in the 12 obj 0 Drive in Local mode 1 Drive in Remote mode This bit is mapped in the obj 0 No Undervoltage 1 With Undervoltage This bit is mapped in the 14 obj O PID in manual mode 1 PID in Automatic mode This bit is mapped in the BI15 object CFW501 16 E Programming Bit 15 O The drive is not in a fault condition Fault condition 1 The drive has detected a fault Note The fault number can be read by means of the parameter P0049 Present Fault This bit is mapped in the BI16 object P0681 MOTOR SPEED IN 13 BITS Range 32768 to 32767 Default Properties Access groups NET Description It allows monitoring the motor speed This word uses 13 bit resolution with signal to represent the motor synchronous speed P0681 0000h 0 decimal motor speed 0 P0681 2000h 8192 decimal motor speed synchronous speed Intermediate or higher speed values in rpm can be obtained by using this scale E g for a 4 pole motor and 1800 rpm of synchronous speed if the value
13. read is 2048 0800h then to obtain the speed in rpm one must calculate 8192 gt 1800 rpm 2048 gt Speed in rpm Speed in rpm 1800 x 2048 8192 Speed in rpm 450 rpm Negative values in this parameter indicate that the motor is running in the reverse direction This parameter is mapped in the Al18 object P0682 SERIAL CONTROL WORD Range 0000h to FFFFh Default 0000h Properties Access groups NET Description It is the device N2 interface control word This parameter can only be changed via serial interface For the other Sources HMI etc it behaves like a read only parameter In order to have those commands executed it is necessary to program the equipment to be controlled via serial This programming is achieved by means of parameters P0105 and P0220 to P0228 Each bit of this word represents a command that can be executed Function Reserved External PID controller 1 Main PID controller Reserved Fault reset Quick stop Second ramp LOC REM Speed direction General enable Run Stop CFW501 17 Programming Table 4 5 P0682 parameter bit functions Esse oeoao coeeoeoeeeee Bit O O It stops the motor with deceleration ramp Run Stop 1 The motor runs according to the acceleration ramp until reaching the speed reference value This bit is mapped in the object BO1 Bit 1 O It disables the drive interrupting the supply for the motor
14. 82 O RampEnable Run Stp BO 20682 1 GeneralEnable tnable Disabe BOS Po682 2 RunForward X Forward Reverse BO4 20682 5 JOGEnbe BOS 20682 4 Remote BOO P0682 5 2ndRamp Bor 6 QuickStop 1 20682 7 FautRest Reset Of Boo 20682 8 NotUsed BOO 9 NotUsed Bo 20682 10 NotUsed BO12 Po6s 11 NotUsed 2 BOIS 20682 12 NotUsed BO14 Intern PID Manual Auto BO15 P0682 Extern PID Manual Auto 8016 PO682 15 NotUsed ES SEO BOi7 P0995 o JDM 1 Bois Posos 1 DO2 X BOi9 P095 2 1 P0695 25 D4 X J Bo21 Posa 4 DO 5 1 5 Control System Model DDL kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk WEG CFW501 Variable Frequency Drive CSMODEL CFW501 VND AITITLE Analog Inputs BITITLE Binary Inputs AOTITLE Analog Outputs BOTITLE Binary Outputs CSAI Al1 N N Motor Speed 002 CSAI Al2 N N Motor Current POOO3 A CSAI AIS N N DC Link Voltage Ud PO004 V CSAI Al4 N N Motor Frequency POOO5 Hz CSAI AI5 N N Motor Voltage POO07 V CSAI AI6 N N Motor Torque POO09 CSAI AI7
15. D REFERENCE Range 32768 to 32767 Default 0 Properties Access groups via HMI NET Description It allows programming the motor speed reference via the N2 interface This parameter can only be changed via serial interface For the other sources HMI etc it behaves like a read only parameter In order that the reference written in this parameter be used it is necessary that the drive be programmed to use the speed reference via serial This programming is achieved by means of parameters P0221 and PO222 This word uses a 13 bit resolution with signal to represent the motor synchronous speed PO683 0000h decimal speed reference 0 P0683 20001 8192 decimal speed reference synchronous speed Intermediate or higher reference values can be programmed by using this scale E g for a 4 pole motor and 1800 rpm of synchronous speed to obtain a speed reference of 900 rpm one must calculate CFW501 18 E Programming 1800 rpm gt 8192 900 rpm gt 13 bit reference 13 bit reference 900 x 8192 1800 13 bit reference 4096 gt Value corresponding to 900 rpm in a 13 bit scale This parameter also accepts negative values to revert the motor speed direction The reference speed direction however depends also on the control word P0682 bit 2 setting 2 1 P0683 gt reference for forward direction Bit 2 1 and P0683 lt reference for reverse di
16. Drive is not in Fire Mode 1 Drive is in Fire Mode This bit is mapped in the object 0 Drive is not in Bypass mode 1 Drive is in Bypass mode This bit is mapped in the BI4 object 0 The fast stop command is not active 1 The drive is executing the fast stop command This bit is mapped in the 5 object 0 The drive is configured to use the first ramp values programmed in 100 and P0101 as the motor acceleration and deceleration ramp times 1 The drive is configured to use the second ramp values programmed in PO102 and P0103 as the motor acceleration and deceleration ramp times This bit is mapped in the BI6 object 0 The drive is operating normally 1 The drive is in the configuration mode It indicates a special condition during which the drive cannot be enabled Executing the self tuning routine Executing the oriented start up routine Executing the HMI copy function Executing the flash memory card self guided routine There is a parameter setting incompatibility There is no power at the drive power section This bit is mapped in the BI7 object 0 The drive is not in alarm condition 1 The drive is in alarm condition Note The alarm number can be read by means of the parameter P0048 Present Alarm This bit is mapped in the BI8 object 0 The motor is stopped 1 The drive is running the motor at the set point speed or executing either the acceleration or the deceleration ramp This bit is
17. Motors Automation Energy Transmission amp Distribution Coatings N2 CFW501 User s Manual BEEN San N2 User s Manual Series CFW501 Language English Document Number 10002041262 00 Publication Date 09 2013 Contents CONTENTS esp pfe 3 ABOUT THE MANUAL LR MAREM Un M UN EM EE M xL DEIN REPE UAE 5 ABBREVIATIONS AND DEFINITIONS 55 552225 aan nannan nnmnnn 5 NUMERICAL REPRESENTATION 2 552222 c aano au SOME REIR inda 5 5 1 INTRODUCTION TO THE SERIAL COMMUNICATION 6 2 INTRODUCTION TO THE N2 COMMUNICATION 7 2 1 2 MS TP MESSAGES STRUCTURE snnm muss mnnn 7 2 2 COMMANDS AND SUBCOMMANDS 1 1 1 nnns nnns nsns nn muss 7 23 POLLING MECHANISM 22e consi ncn no ca cu 8 3
18. N N Output Power P0010 kw CSAI AIB N N AI1 Value POO18 CSAI AI N N AI2 Value POO19 CSAI AH O N N AIS Value POO20 CSAI 1 N N Heatsink Temperature POOSO C AH 2 N N Reserved CSAI Al13 N N Time Powered P0042 h CSAI AH A N N Time Enabled P0043 h CSAI 5 Output Energy PO044 kWh 6 N N Present Alarm 48 CSAI AH 7 N N Present Fault POO49 CSAI A18 N N Speed in 13 bits PO681 CSAI AH 9 N N Main PID Feedback P1015 CSAI Al20 N N Main PID Output P1016 Al21 N N External PID Feedback P1062 Al22 N N External PID Output 1063 BI1 N N Not Used BI2 N N Run Command Off On BI3 N N Fire mode Off On CSBI BI4 N N Bypass Off On CSBI BI5 N N Quick Stop Inactive Active CFW501 23 ueg n2 objects modeling CSBI BI6 N N 2nd Ramp Off On CSBI BI7 N N Config Mode Normal Config BI8 N N Alarm No Alarm Alarm CSBI BI9 N N Running Stopped Running CSBI BI10 N N Enabled Disabled Enabled BI11 N N Forward Reverse Forward BI12 N N JOG Off On BI13 N N Remote Local Remote CSBI BI14 N N Subvoltage No Subvoltage CSBI BI15 N N Automatic PID Manual Auto BI16 N N
19. P0681 MOTOR SPEED IN 13 BITS c c nora Cosi dacconsis 17 P0682 SERIAL CONTROL 2555 ca s acnc uu ca Ea Sa 17 P0683 SERIAL SPEED 18 P0695 DIGITAL OUTPUT SETTING 53 aan RAAR ANAA AEA R RRRA 19 P0696 VALUE 1 FOR ANALOG 1 20 P0697 VALUE 2 FOR ANALOG 2 1 11 nasa sinn nnns snnm nnmnnn nnmnnn nnmnnn 20 P0698 VALUE FOR ANALOG 20 5 N2 OBJECTS BUI EC M D M MM ME 21 CFW501 3 ueg Contents 5 1 N2OBJECTS FOR THE CFWS5O riarann nont cra one nere a AAAA NAAR RAAEN ETARA ERANA 21 5 1 1 ANALOG INPUT Al Object Ra ARAA KARARAN AAR 21 5 1 2 ANALOG OUTPUT AO Object 22r caca ueni ca nouo ninan RNAAR RANAR NARRAN 21 5 1 3 BINARY INPUT BI ODject errore nnno nic in nn nuc nnn nic anna nin Em ARANA AARAA R AANA 22 5 1 4 BINARY OUTPUT BO Object
20. e serial communication presents errors Table 4 3 P0316 options ___ Description Inactive serial interface It occurs when the device does not have the RS485 board installed O Inactive Installed and acknowledged RS485 interface board 2 The serial interface is active but a serial communication error has been 9 detected A128 alarm F228 fault P0680 STATUS WORD Range 0000h to FFFFh Default Properties Access groups Description It allows the device status monitoring Each bit represents a specific status Bits 15 14 13 122 1 10 9 8 7 6 5 4 Function Fire Mode Reserved 9 o 3 LL Speed direction Active General Motor Running Alarm condition In configuration mode Second ramp Active quick stop PID Automatic Undervoltage LOC REM CFW501 15 E Programming Bits Bit 1 Run command Bit 2 Fire Mode Bit 3 Bypass Bit 4 Active quick stop Bit 5 Second ramp Bit 6 In configuration mode Bit 7 Alarm condition Bit 8 Motor Running Bit 9 Active General Enable Bit 10 Speed direction Bit 11 JOG Bit 12 LOC REM Bit 13 Undervoltage Bit 14 Manual Automatic Table 4 4 P0680 parameter bit functions 0 Run command is inactive 1 Run command is active This bit is mapped in the BI2 object 0
21. eout The actions described in this parameter are executed by means of the automatic writing of the selected actions in the respective bits of the interface control words Therefore in order that the commands written in this parameter be effective it is necessary that the device be programmed to be controlled via the used network interface with exception of option Causes a Fault which blocks the equipment even if it is not controlled by network This programming is achieved by means of parameters P0220 to P0228 P0314 SERIAL WATCHDOG Range 0 0 to 999 0s Default 0 0 Properties CFG Access groups via HMI NET Description It allows programming a time limit for the detection of serial interface communication error If the frequency inverter remains without receiving valid telegrams longer than the time programmed in this parameter it will be considered that a communication error has occurred the alarm A128 will be showed on the HMI and the option programmed in P0313 will be executed After being powered up the frequency inverter starts counting this time from the first received valid telegram The value 0 0 disables this function CFW501 14 Programming P0316 SERIAL INTERFACE STATUS Range Inactive Default 1 Active 2 Watchdog error Properties Access groups HMI NET Description allows identifying whether the RS485 serial interface board is properly installed and whether th
22. esents a physical digital input by which its status can be read by the network controller The BINARY INPUT object types for the CFW501 are described at table 5 4 Table 5 4 BINARY INPUT Object Parameter Bit Description Values 1 0 Acces P0680 O NotUed P0680 1 RunCommand On Of 8 P0680 2 Firemode HR P0600 Bypass O R 20680 4 QuickStop 1 Active lnactivo R P0680 5 2ndRamp R 20680 6 Mode 1 R E z Aam Alarm No Aem Running Running Stopped Ee a P0680 10 Foward 1 Fowad Reese R Poco 1 P0680 12 Remote Remote local R P0680 13 Subvoltage _ Suovotage No amp Sb R Posto 14 pAwomsioPD 8 Fault No Fault no IA 1 Do2 P012 2 D83 nO 3 On Of CR P002 4 Db 1 Po 18 06 1 Pod 8 Dz 18 7 DB HR 5 1 4 BINARY OUTPUT BO Object It represents a physical digital output by which its status can be read by the network controller The BINARY OUTPUT object types for the CFW501 are described at table 5 5 CFW501 22 E n2 objects modeling Table 5 5 BINARY OUTPUT Objects Object Eng Unit Parameter Bit Description 1 Values 1 0 Bor 206
23. f the ANALOG OUTPUT type mold the analog outputs where AOA P0696 AO5 PO69T AO6 P0698 NOTE For CFW501 frequency inverter the analog output 3 represents the frequency output FO For the actual output resolution refer to the product manual CFW501 20 n2 objects modeling 5 2 OBJECTS MODELING 2 object represents physical or virtual information of the equipment such as a digital input or parameters The CFW501 inverter presents the following object types ANALOG INPUT ANALOG OUTPUT BINARY INPUT OUTPUT 5 1 N2 OBJECTS FOR THE CFW501 Table 5 1 shows the actions supported by each kind of object N2 Table 5 1 Action for the objects N2 Action Analog Input Binary Input Analog Output Binary Output X Read X X X X po X Override X Release X The CFW501 inverter parameters are mapped by N2 objects which are described below NOTE Refer the description of the parameters associates with each object for more details about it 5 1 1 ANALOG INPUT Al Object It represents an analog input by which its value can be read by the network controller The ANALOG INPUT object types for the CFW501 are described at table 5 2 Table 5 2 ANALOG INPUT Object Object Eng Unit Parameter Description Range Access RPM 20002 Motor Speed 20 1800 R AP 20003 Motor Current 00 4500 R
24. hat specify the RS232 and RS485 interfaces however do specify neither the format nor the character sequence for data transmission and reception In this sense besides the interface it is also necessary to identify the protocol used for the communication The N2 network using the RS485 interface as the physical layer to message exchange The characteristics of the RS485 serial interface available in the CFW501 frequency inverter as well as the 2 protocol will be presented next CFW501 6 eq INTRODUCTION TO THE N2 COMMUNICATION 2 INTRODUCTION TO THE N2 COMMUNICATION The N2 communication protocol was designed by Johnson Controls The N2 uses the Master Slave type communication configuration and it is possible to have up to 255 slaves in a network All communication begins with the master sending a telegram to the slave and the slave answer the master what was requested The physical layer is RS 485 compatible half duplex shielded twisted pair The communication rate is 9600 bits sec with 1 start bit 8 bits for data and 1 stop bit without parity The N2 protocol is an interface for accessing the existing data in the device Every device connection to the N2 network can be thought of as a small data manager This data base presents data structure that represents the device objects An N2 object represents physical or virtual information of the device with one digital or analog input or output control variables
25. lished and new valid telegrams are received the alarm indication will be removed from the HMI Possible Causes Correction Verify factors that could cause failures in the communication cables installation and grounding sure that the master sends telegrams to the equipment in intervals shorter than the programmed P0314 Disable this function at PO314 CFW501 25 WEG Drives amp Controls Automa o LTDA Jaragu do Sul SC Brazil Phone 55 47 3276 4000 Fax 55 47 3276 4020 S o Paulo SP Brazil Phone 55 11 5053 2300 Fax 55 11 5052 4212 automacaoQweg net www Weg net
26. me of the digital outputs may not be available depending on the plug in module P0696 VALUE 1 FOR ANALOG OUTPUTS P0697 VALUE 2 FOR ANALOG OUTPUTS P0698 VALUE 3 FOR ANALOG OUTPUTS Range 32768 to 32767 Default 0 Properties Access groups NET Description They allow the control of the analog outputs by means of network interfaces These parameters cannot be changed via HMI The value written in these parameters is used as the analog output value providing that the function for the desired analog output be programmed for P0696 P0697 P0698 value at the parameters P0251 P0254 PO257 The value must be written in a 15 bit scale 7FFFh 32767 to represent 100 96 of the output desired value i e P0696 0000h 0 decimal analog output value O 96 P0696 7FFFh 32767 decimal analog output value 100 96 The showed example was for P0696 but the same scale is also used for the parameters P0697 P0698 For instance to control the analog output 1 via serial the following programming must be done Choose a parameter from P0696 P0697 P0698 to be the value used by the analog output 1 For this example we are going to select P0696 Program the option P0696 value as the function for the analog output 1 in P0254 Using the network interface write in PO696 the desired value for the analog output 1 between O and 100 96 according to the parameter scale N2 objects o
27. n protocol For the standard RS485 interface 1 this option selects BACnet MS TP the communication protocol 4 N2 1 6 HMI 1 Modbus RTU 2 For the interface modules with more than one serial interface example CFW500 CUSB etc this option allows to use the remote HMI connected to standard interface 1 and simultaneously to use Modbus RTU slave protocol at the additional serial interface 2 7 Modbus 2 For the additional RS485 interface 2 this option selects Modbus RTU slave communication protocol The standard serial interface 1 remains disabled 8 1 BACnet 2 For the interface modules with more than one serial interface example CFW500 CUSB etc this option allows to use the remote HMI connected to standard interface 1 and simultaneously to use BACnet MS TP protocol at the additional serial interface 2 9 BACnet 2 For the additional RS485 interface 2 this option selects BACnet MS TP communication protocol The standard serial interface 1 remains disabled 2 10 HMI 1 N2 2 For the interface modules with more than one serial interface example CFW500 CUSB etc this option allows to use the remote HMI connected to standard interface 1 and simultaneously to use N2 protocol at the additional serial interface 2 For the additional RS485 interface 2 this option selects 2 communication protocol The standard serial interface 1 remains disabled For
28. n these parameters must be selected The detailed description of these parameters is found in the CFW501 programming manual P0308 SERIAL ADDRESS Range O to 255 Default 1 Properties CFG Access groups NET Description It allows programming the address used for the inverter serial communication It is necessary that each device in the network has an address different from all the others The valid addresses for this parameter depend on the protocol programmed in 12 programming needn t address Modbus valid addresses 1 to 247 BACnet valid addresses O to 254 N2 valid addresses 1 to 255 CFW501 11 Programming 0310 SERIAL BAUD RATE Range O 9600 bits s Default 1 1 19200 bits s 2 38400 bits s Properties CFG Access groups via HMI NET Description It allows programming the baud rate for the serial communication interface in bits per second This baud rate must be the same for all the devices connected to the network NOTE 7 To use the RS485 interface with the remote keypad it is not necessary to set the baud rate This Setting is necessary only with the other serial protocols for both the standard interface 1 as the additional interface 2 NOTE The option must be selected for the 2 protocol P0311 SERIAL INTERFACE BYTE CONFIGURATION Range O 8 data bits no parity 1 stop bit Defa
29. rection Bit 2 0 and P0683 gt reference for reverse direction Bit 2 0 and P0683 lt reference for forward direction This parameter is mapped in the object P0695 DIGITAL OUTPUT SETTING Range 0000h to 001Fh Default 0000h Properties Access groups NET Description It allows the control of the digital outputs by means of the network interfaces This parameter cannot be changed via HMI Each bit of this parameter corresponds to the desired value for one digital output In order to have the correspondent digital output controlled according to this content it is necessary that its function be programmed for PO695 Content at parameters P0275 to PO279 Bits 15to 5 gt Function Reserved DOS setting 204 setting DOS setting DO setting DO1 setting Table 4 6 P0695 parameter bit functions Bit O O DO1 output open setting 1 DO1 output closed This bit is mapped in the BO17 object Bit 1 0 DO2 output open DO2 setting 1 DO2 output closed This bit is mapped in the BO18 object Bit 2 O DOS output open DOS setting 1 DOS output closed This bit is mapped in the BO19 object Bit 3 O DO4 output open DOA setting 1 DO4 output closed This bit is mapped in the BO20 object Bit 4 0 005 output open DOS setting 1 DOS output closed This bit is mapped in the 21 object Bits 5 to 15 CFW501 19 Programming NOTE So
30. sconnected The cable must be laid separately and far away if possible from the power cables the network devices must be properly grounded preferably at the same ground connection The cable Shield must also be grounded a Enable the termination resistors only at two points at the extremes of the main bus even if there are derivations from the bus 1 The limit number of devices that can be connected to the network depends also on the used protocol CFW501 10 E Programming 4 PROGRAMMING Next the CFW501 frequency inverter parameters related to the N2 communication will be presented 4 1 SYMBOLS FOR THE PROPERTIES DESCRIPTION RO Reading only parameter CFG Parameter that can be changed only with a stopped motor P0105 157 2N RAMP SELECTION P0220 LOCAL REMOTE SELECTION SOURCE P0221 SPEED REFERENCE SELECTION LOCAL SITUATION P0222 SPEED REFERENCE SELECTION REMOTE SITUATION P0223 FORWARD REVERSE SELECTION LOCAL SITUATION P0224 RUN STOP SELECTION LOCAL SITUATION P0225 JOG SELECTION LOCAL SITUATION P0226 FORWARD REVERSE SELECTION REMOTE SITUATION P0227 RUN STOP SELECTION REMOTE SITUATION P0228 JOG SELECTION REMOTE SITUATION These parameters are used in the configuration of the command source for the CFW501 frequency inverter local and remote situations In order that the device be controlled through the N2 interface the options serial available i
31. the standard RS485 interface 1 this option selects N2 the communication protocol CFW501 13 E Programming P0313 COMMUNICATION ERROR ACTION Range O Inactive Default 1 1 Disable via Run Stop 2 Disable via General Enable 3 Change to Local 4 Change to Local keeping commands and reference 5 Causes a Fault Properties CFG Access groups via HMI NET Description It allows the selection of the action to be executed by the device if it is controlled via network and a communication error is detected Table 4 2 P0813 options Options 0 Inactive motor stops according to the programmed deceleration ramp The drive is disabled by removing the General Enabling and the motor coasts to stop 3 Change to Local The drive commands change to Local but the status of the enabling and speed reference commands received via network are kept providing that the drive has been programmed to use in Local mode the commands via HMI or 3 wire start stop and Speed reference via either HMI or electronic potentiometer Instead of an alarm the communication error causes an drive 5 Causes a Fault fault so that a drive fault reset becomes necessary in order to restore normal operation 2 Disable via General Enable 4 Change to Local keeping commands and reference The following events are considered communication errors Serial communication RS485 128 alarm F228 fault Serial communication tim
32. ult 1 1 2 8 data bits even parity 1 stop bit 2 8 data bits odd parity 1 stop bit 3 8 data bits no parity 2 stop bits 4 8 data bits even parity 2 stop bits 5 8 data bits odd parity 2 stop bits Properties CFG Access groups via HMI NET Description It allows programming the number of data bits parity and stop bits of the serial interface bytes This configuration must be identical for all the devices connected to the network NOTE The option 0 must be selected for the BACnet and 2 protocol NOTE 7 To use the RS485 interface with the remote keypad it is not necessary to set the byte configuration This setting is necessary only with the other serial protocols for both the standard interface 1 as the additional interface 2 CFW501 12 Programming P0312 SERIAL PROTOCOL Range HMI 1 Default 2 1 Reserved 2 Modbus 1 3 BACnet 1 4 1 5 Reserved 6 HMI 1 Modbus RTU 2 7 Modbus 2 8 HMI 1 BACnet 2 9 BACnet 2 10 HMI 1 N2 2 11 2 Properties CFG Access groups via HMI NET Description It allows selecting the desired protocol for the serial interface Table 4 1 P0312 options 0 HMI 1 For the standard RS485 interface 1 this option selects the remote HMI communication protocol For the standard RS485 interface 1 this option selects Modbus RTU slave as the communicatio
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