Important InformationNOTICERead these instructions carefully,and look at the equipment to bee familiar with the device before trying to install,operate,or maintainit.The following special messages may appear throughout this documentation or on the equipment to warn of potential hazards or to callattention to information that dlarifies or simplifies a procedure.The addition of this symbol to a Danger or Waming safety label indicates that an electrical hazard exists,which will result inpersonal injury if the instructions are not followed.This is the safety alert symbol.It is used to alert you to potential personal injury hazards.Obey all safety messages that followthis symbol to avoid possible injury or death.A DANGERDANGER indicates an imminently hazardous situation,which,if not avoided,will result in death or serious injury.A WARNINGWARNING indicates a potentially hazardous situation,which,if not avoided,can result in death or serious injury.A CAUTIONCAUTION indicates a potentially hazardous situation,which,if not avoided,can result in minor or moderate injury.CAUTIONCAUTION,used without the safety alert symbol,indicates a potentially hazardous situation which,if not avoided,canresult in property damage.PLEASE NOTEThe word "drive"as used in this manual refers to the controller portion of the adjustable speed drive as defined by NEC.Electrical equipment should be installed,operated,serviced,and maintained only by qualified personnel.No responsibility is assumed bySchneider Electric for any consequences arising out of the use of this material.2009 Schneider Electric.All Rights ReservedBBV28590042009Before you beginRead and understand these instructions before performing any procedure with this drive.AA DANGERHAZARD OF ELECTRIC SHOCK,EXPLOSION,OR ARC FLASHRead and understand this manual before installing or operating the Altivar 12 drive.Installation,adjustment,repair,and maintenancemust be perfomed by qualified personnel.The user is responsible for pliance with all international and national electrical code requirements with respect to grounding of allequipment.Many parts of this drive,induding the printed circuit boards,operate at the line voltage.DO NOT TOUCH.Use only electricallyinsulated tools.DO NOT touch unshielded ponents or terminal strip screw connections with voltage present.DO NOT short across terminals PA/+and PC/-or across the DC bus capacitors.Before servicing the drive:-Disconnect all power,including external control power that may be present.Place a "DO NOT TURN ON"label on all power disconnects.Lock all power disconnects in the open position.WAIT 15 MINUTES to allow the DC bus capacitors to discharge.Then follow the "Bus Voltage Measurement Procedure"(seeUser manual)to verify that the DC voltage is less than 42 V.The drive LEDs are not indicators of the absence of DC busvoltage.Install and close all covers before applying power or starting and stopping the drive.Failure to follow these instructions will result in death or serious injury.A DANGERUNINTENDED EQUIPMENT OPERATIONRead and understand this manual before installing or operating the Altivar 12 drive.Any changes made to the parameter settings must be performed by qualified personnel.Failure to follow these instructions will result in death or serious injury.A WARNINGDAMAGED DRIVE EQUIPMENTDo not operate or install any drive or drive accessory that appears damaged.Failure to follow these instructions can result in death,serious injury,or equipment damage.A WARNINGLOSS OF CONTROLThe designer of any control scheme mustconsider the potential failure modes of control paths and,for certain critical control functions,provide a means to achieve a safe state during and after a path failure.Examples of critical control functions are emergency stop and overtravel stopSeparate or redundant control paths must be provided for critical control functions.System control paths may include munication links.Consideration must be given to the implications of unanticipated transmissiondelays or failures of the link.aFailure to follow these instructions can result in death,serious injury,or equipment damage.a.For additional information,refer to NEMA ICS 1.1(latest edition),"Safety Guidelines for the Application,Installation,and Maintenanceof Solid State Control and to NEMA ICS 7.1 (latest edition)."Safety Standards for Construction and Guide for Selection,Installation andOperation of Adjustable-Speed Drive Systems."BBV285900420095Documentation structureThe following Altivar 312 technical documents are available on the Schneider Electric website (www.schneider-electric.)as well as onDVD-ROM (reference VW3A8200).User manualThis manual describes how to install,mission,operate and program the drive.Simplified manualThis manual is a simplified version of the User manual.This manual is delivered with the drive.Quick Start sheetThe Quick Start describes how to wire and configure the drive to start motor quickly and simply for simple applications.This document isdelivered with the drive.Modbus Communication manualThis manual describes the assembly,connection to the bus or work,signaling,diagnostics,and configuration of the munication-specific parameters via the 7 segment LED display.It also describes the munication services of the Modbus protocol.This manual includes the main Modbus addresses.It explains the operating mode specific to munication(state chart).ATV12P manualThis manual describes the features related to products mounted on baseplate.ATV12 Parameters description fileAll the parameters are grouped together in an Excel file available on the Schneider Electric website (www.schneider-electric.),with thefollowing data:·Modbus Addresses·Category·Read/write accessType:signed numerical,unsigned numerical,etc.·Factory setting·Minimum value·Maximum valueDisplay on the 7-segment integrated display teminal·Relevant menuThis file offers the option of sorting and arranging the data according to any criterion chosen by the user.A DANGERUNINTENDED EQUIPMENT OPERATIONRead and understand this manual before installing or operating the Altivar 12 drive.Any changes made to the parameter settings must be performed by qualified personnel.The excel file does not describe the behaviour of the parameters.Before any modification,refer to the ATV12 User Manual.Failure to follow these instructions will result in death or serious injury.BBV28590042009PresentationThe Modbus socket on the Altivar 12 can be used for the following functions:·Configuration·Settings·Control·MonitoringThe ATV12 drive supports:The 2-ire RS485 physical layerThe RTU transmission modeBBV285900420097Connection to RS485 busConnection to ATV12Connection accessories should be ordered separately (please consult our catalogues).Connect the RJ45 cable connector to the ATV12 connector.Pin out of the ATV12 RJ45 ConnectorView from underneathPinSignal134D1(1)D0(1)678Common (1)(1)Modbus signals(2)Supply for RS232/RS485 converter or a remote teminalProtection against interferenceUse the Schneider Electric cable with 2 pairs of shielded twisted conductors (reference:TSXCSA100,TSXCSA200,TSXCSA500).Keep the Modbus cable separated from the power cables (30 cm (11.8 in.)minimum).Make any crossovers of the Modbus cable and the power cables at right-angles,if necessary.For more infommation,please refer to the TSX DG KBL E manual:"Electromagic patibility of industrial works and fieldbuses".RS485 bus schematicThe RS485 standard allows variants of different characteristics:polarisationline terminatordistribution of a reference potential·number of slaves·length of busThe new Modbus specification published on the Modbus.org site in 2002 contains precise details of all these characteristics.They are alsosummarised in Standard schematic section.The new Schneider Electric devices conform to this specification.BBV28590042009Configuration of the Modbus serial portCommunication Menu StructureThe munication parameters are part of the COM-submenu.This menu is accessible as follows:Communication configuration -Parameters decriptionParameter descriptionRange or listed valuesdefaultPossible ValueModbus addressMODBUS address of the drive1to247OFF16#1771=060010:OFF (broadcast only)4,8 kbpsMODBUS baud rate9.616#1773=0600319.2 kbps19.2 kbps19.238.4 kbpsMODBUS format801:8 bits,odd parity,1 stop bit.8E1:8 bits,even parity,1 stop bit.8E1BE I8N1,8 bits,no parity,1 stop bit16#1774=060048N2:8 bits,no parity,2 stop bits.MODBUS Time out10.0sAdjustable from 0.1 to 30s16#1775=06005Communication scanner submenus Detailed in the next chapterThe behaviour of the ATV12 when a time-out occurs is defined by the 5LL parameter,this parameter can be found in the menu FL-(see User Manual).A WARNINGLOSS OF CONTROLIf Modbus fault management(SLL)=fault ignore(nO),munication control will be inhibited.For safety reasons,inhibition ofmunication fault should only be used for adjustment or special applications purpose.Failure to follow these instructions can result in death,serious injury,or equipment damage.BBV28590042009IO Scanner configuration parametersIntegrated munication scannerThe munication scanner is useful when used in bination by the Modbus client device with the function "Read/Write Multipleregisters":23(Ox17),which provides in a single telegram a read multiple registers and a write multiple registers.The detail of the function23 is described in the supported Modbus functionsLocal configuration of the munication scannerThe munication scanner is accessible via the following menus C n-and /C 5-OC 5-submenus.The 4 output variables and the 4 input variables are assigned by means of parameters n/ton4 and nn/to n4.AnCR ornn parameter with a value of zero indicates that the parameter is not active.These 8 parameters are described in the table.NCA or NMA defines the addresses.All these parameters are Modbus eligible addresses.SubmenuOn the local HMI,it is parameter descriptionFactory setting parameterModbus addressAddress of ETA=3201NMA1 addressSource drive address of the 1st input word16#0C811270116#319DAddress of RFRD=8604NMA2 addressSource drive address of the 2nd input word16#219C1270216#319ENMA3 addressSource drive address of the 3rd input word01270316#319FNMA4 address0Source drive address of the 4th input word1270416#31A0Address of CMD=8501NCA1 addressDestination drive address of the 1st output word16#21351272116#31B1Address of LFRD=8602NCA2 addressDestination drive address of the 2nd output word16#219A1272216#31B2NCA3 address0Destination drive address of the 3rd output word1272316#31B3NCA3 address0Destination drive address of the 4th output word1272416#31B4Monitoring the munication scannerIt is also possible to monitor the parameters value that have been configured in the munication scanner.This monitored values areaccessible via the following menus:Can and /5R-05A submenu.The 4 output variable values and the 4 input variable values are located into parameters n/to nC4 and nn to nn4.SubmenuOn the local HMI,it is parameter descriptionFactory setting parameterModbus addressNM1 (nNM1 addressETA valueSource drive value of the 1st input word1274116#31C5NM2 addressRFRD valueSource drive value of the 2nd input word1274216#31C6NM3 (NM3 addressSource drive value of the 3rd input word1274316#31C7NM4 addressSource drive value of the 4th input word01274416#31C8CMD valueNC1 addressDestination drive value of the 1st input word1276116#31D9Destination drive value of the 2nd input wordLFRD valueNC2 address1276216#31DANC3(n[3)NC3 address0Destination drive value of the 3rd input word1276316#31DBNC4 addressDestination drive value of the 4th input word1276416#31DC10BBV28590042009IO Scanner configuration parametersConfiguration exampleIn this example the munication scanner is configured as follow.nC/.nR,nn.n are used with their default valuesis configured with the address of Cn /(Modbus 8504 16#2138).is is configured with the address of EI(Modbus 320616#0C86).How to read the diagram belowExample for n:nc月3（个contain the logical address(2I3)of En i(②Communication scanner·submenu320616#0C862135②850416#21380000850116#2135860216#219A320116#0C81860416#219C0000The required telegram to perform the exchange is the Modbus function 23,Obviously a sequence of requests based on Modbus functions03 and 16 is also possible.(See also the chapters Modbus Functions and Altivar 12 and M340).BBV28590042009Modbus FunctionsModbus ProtocolThe transmission mode used is RTU mode.The frame contains no message header byte,nor end of message bytes.It is defined as follows:SlaveaddressRequest codeDataCRC16The data is transmitted in binary code.CRC16:cyclical redundancy check.The end of the frame is detected on a silence greater than or equal to 3 characters.PrincipleThe Modbus protocol is a master-slave protocol.MasterOnly one device can transmit on the line at any time.The master manages the exchanges and only it can takethe initiative.No slave can send a message unless it is invited to do so.exchange,and declares the interrogated slave absent if noresponse is received within a given time period.If a slave does not understand a message,it sends anexception response to the master.The master may or maynot repeat the request.Slave iSlavejSlave kDirect slave-to-slave munications are not possible.For slave-to-slave munication,the application software must therefore be designed to interrogate a slave and send back data receivedto the other slave.Two types of dialogue are possible between master and slaves:the master sends a request to a slave and waits for its responsethe master sends a request to all slaves without waiting for a response (broadcasting principle)AddressesThe drive Modbus address can be configured from 1 to 247.Address 0 coded in a request sent by the master is reserved for broadcasting.ATV12 drives take account of the request,but do notrespond to it.Supported Modbus functionsThe Altivar 12 supports the following Modbus functions.Function nameCodeDescriptionRemarksRead holding registers03Read N output wordsMax PDU length 63 words16#03Write one output word06Write one output word16#06Write multiple registers16Write N output wordMax PDU length:61 words16#10Read/write Multiple registers23Read/write multiple registersMax PDU length 4 words (W),4 words (R)16#17(Sub-function)43/14Encapsulated interface transportRead device ldentification16#2B/Read device identification16#0EBBV28590042009