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E6581222 ③ T OSVER T VF-S11 Communications Function Instruction Manual * The contents of this manual are subject to change without notice. © TOSHIBA INVERTER CORPORATION 2004 All rights reserved. Notice 1. Make sure that this instruction manual is delivered to the end us er of the inverter.
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E6581222 1 Read first Safety precautions This manual and labels on the inverter provide ve ry important information that you should bear in mind to use the inverter properly and safely , and also to avoid injury to yourself and other people and damage to property.
E6581222 2 Contents 1. General outlines of the communications func tion.............................................................................. .......................... 3 2. Data transmission specific ations ...................................
E6581222 3 1. General outlines of the communications function This manual explains the serial communications interface function provided for the TOSVERT VF- S11 series of industrial inverters.
E6581222 4 2. Data transmission specifications Items Specifications Transmission scheme Half-duplex Synchronization scheme Start-stop synchronization Communication baud rate 1200/2400/4800/9600*/19200.
E6581222 5 3. Communication protocol This communication protocol supports the TOSH IBA Inverter Protocol and part of MODBUS-RTU protocol. Select the desired protocol from in the following communication protocol selection parameters ( ). “Parameter Name , Communication Number.
E6581222 6 4. T OSHIBA Inverter Protocol Select “TOSHIBA Inverter Protocol” ( = ) in the communication protocol selection parame- ters. “TOSHIBA Inverter Protocol” ( = ) is set for initial communication protocol selection of shipment setting.
E6581222 7 ■ Binary mode (1) In binary mode, the start code is “2FH(/).” The inverter rejects all data it ems entered before the “2FH(/).” If two or more “2FH(/)” are entered, the “2FH(/ )” entered last w ill be judged valid and all “2FH(/)” entered before will be ignored.
E6581222 8 4.1. Dat a transmission format s ■ Note: The term “trip status” used in this manual incl udes retry w aiting status and trip retention status.
E6581222 9 ■ VF-S11 → computer At time of broadcast communication, returning of dat a is not executed, except for the inverters to be returned, when the inverter number is not matc hed, and the inverter number has only one character. This is because there will be a risk of that the returned data may be deformed.
E6581222 10 • Data returned w hen data is not processed normally (ASCII mode) In case an error occurs, comm unication error command (4EH(N) or 6EH(n)) and the error type num- ber is returned to the computer in addition to t he checksum.
E6581222 11 4.1.2. Data transmission format s used in binary mode A communication number is used to specify a data item, data is written in hexadecimal form, and data in transmission characters are r epresented by binary codes (HEX codes).
E6581222 12 ■ VF-S11 → computer (binary mode) At time of broadcast communication of the binary m ode, returning of data is not executed except for the inverter to be returned (inverter number 00H) and w hen the inverter number is not matched. This is because there will be a risk that the returned data may be deformed.
E6581222 13 2) Error Processing (Binary mode) In case an error occurs, comm unication error command (4EH(N) or 6EH(n)) and the error type num- ber is returned to the computer in addition to t he checksum.
E6581222 14 4.1.3. T ransmission Format of Block Communication What is block communication? Data can be written in and read from several data groups set in one communication by setting the ty- pe of data desired for communication in the block communication parameters ( , , to ) in advance.
E6581222 15 ■ Block Write 1, 2 Select data, which is desired to be w ritten in block communications, in Block Communication Write Data 1 and 2 Parameters ( , ) . This parameter becomes effective when the system is reset, such as w hen power is turned off.
E6581222 16 ■ VF-S11 → Computer At time of broadcast communication of the binary m ode, returning of data is not executed except for the inverter to be returned (inverter number 00H) and w hen the inverter number is not matched. This is because there will be a risk that the returned data may be deformed.
E6581222 17 2) Error Processing (Binary mode) In case an error occurs, comm unication error command (4EH(N) or 6EH(n)) and the error type num- ber is returned to the computer in addition to t he checksum.
E6581222 18 4.2. Commands Here are the communication commands available. Command Function R command Reads the data with t he specified communication number. W command Writes the data with the spec ified communication number. (RAM and EEPROM). P command W rites the data with the specified communication number.
E6581222 19 P (50 H ) (RAM *1 wri t e) This command is used to rewrite data into the par ameter specified using a communication number. It writes data into the RAM only .
E6581222 20 S (53 H )/ s (73 H ) Inter-drive communication command(RAM *1 Write) This command is for using frequency command values in % (1 = 0.01%), instead of in Hz, and is for synchronous-proportional operation in inter-drive communication . This command can also be used in ordinary computer link communications.
E6581222 21 4.3. T ransmission errors ■ Table of error codes Error name Description Error code Impossible to exe- cute The command is impossible to ex ecute, though communication was established normally. 1 Writing data into a parameter whose setting cannot be changed during operation (e.
E6581222 22 4.4. Broadcast communications function Broadcast communication function can transmit the comm and (w rite the data) to multiple inverters by one communication.
E6581222 23 In broadcast communications, only t he representative invert er in each block returns data to the host computer. However, you can make the representative inverter in each block report the occurrence of a problem in the block. To do so, follow these steps.
E6581222 24 4.5. Examples of the use of communication commands Here are some examples of t he use of communications commands provided for the VF-S11 series of inverters. Inverter numbers and checksum used in ASCII mode are omitted from these examples.
E6581222 25 4.6. Examples of RS232C communication programs Ex. 1: BASIC program for monitoring the oper ation frequency continuously (RS232C, ASCII mode) (Toshiba version of Adv anced BASIC-86 Ver.
E6581222 26 Ex. 2: BASIC program for executing an input command w ith checksum (RS232C, ASCII mode) (Toshiba version of Adv anced BASIC-86 Ver. 3.01.05J) ◊ Checking if the maximum frequency setting .
E6581222 27 Ex. 3 BASIC program for communication tests (RS232C, ASCII mode) (Toshiba version of Adv anced BASIC-86 Ver. 3.01.05J) ◊ Accessing a parameter (with error code.) 1) Examples of programs 100 INPUT "Baud rate=9600/4800/2400/1200";SPEED$ ---- Selects a baud rate.
E6581222 28 Ex. 4 A VisualBaisc program for the ASCII mode communication (VisualBaisc is the register ed trademark of the U.S. microsoft company.) ◊ Accessing a parameter 1) Sample program executive.
E6581222 29 3)The description of the code Private Sub Form_Load() F o r m 1 . S h o w '********************************************************************** ' Setting the labels (Initialization) '********************************************************************** Label1.
E6581222 30 5. MODBUS-R TU protocol The MODBUS-RTU protocol of VF-S11 supports only part of the MODB US-RTU protocol. Only tw o commands are supported, “ 03: Multiple data read ( limited only to two bytes)” and “06: Word w rites.” All data will be binary codes.
E6581222 31 ■ Data Exchange with Inverters The inverters are always ready to receive messages and perform slave operation in response to computer requests.
E6581222 32 5.1. MODBUS-RTU transmission format MODBUS-RTU sends and receives binary data w it hout a frame-synchronizi ng start code and defines the blank time to recognize the start of a frame. MODBUS-RTU decides t he data that is first re- ceived subsequently as the first by te of a frame after a blank time for 3.
E6581222 33 5.1.2. Wr ite command (06) ■ Computer → VF-S11 *The text size is 8 bytes fixed. (3.5bytes Blank) Inverter No. Command Communi- cation No. (high) Communi- cation No. (low) Write Data (high) Write Data (low) CRC (low) CRC (high) (3.5bytes Blank) 06 1) Inverter No.
E6581222 34 5.2. CRC Generation “CRC” is a system to check errors in comm unication frames during data transmission. CRC is composed of two by tes and has hexadecimal-bit binary values. CRC values are generated by the transmission side that adds CRC to messages.
E6581222 35 <Notes> Speed command can be transmitted but the run / stop signal is not issued. Sl ave station should have an individual stop signal or the function to st op the action by the frequency reference. (Setting is necessary for : Opera - tion starting frequency, : Operation starting frequency hysteresis .
E6581222 36 ■ Setting of parameter ● Selection of communication protocol ( ) Shipment setting: 0 (TOSHIBA Inverter Protocol) Protocol setting with all inverters (both master and slave inverters) engaged in inter-drive commu- nications 0: Set the TOSHIBA Inverter Protocol.
E6581222 37 ■ Relating communication parameters Following parameters should be set or changed if necessary . • Communication baud rate ( )... Shipment setting = : 9600bps Baud rate of all inverters in the network (master and slave) should be same netw ork.
E6581222 38 6.1. Speed proportional control Various inclinations can be set by frequency point setting. The frequency command value on the slave side duri ng inter-drive communication can be expressed by the follow ing formulas. If inter-drive communication is not selected ( = ), point conversion is not performed.
E6581222 39 6.2. T ransmission format for inter-drive communication Data type is handled in hexadecimal notation and t he t ransmission characters are treated with the binary (HEX) code. The transmission format is basically the same to the case of binary mode.
E6581222 40 7. Communications p arameters The settings of communication-relat ed paramet ers can be changed fr om the operation panel and the external controller (computer).
E6581222 41 7.1. Communication baud rate( ) , Parity bit( ) • Communication baud rate and parity bit should be uniform inside the same network. • This parameter is validated by resetting the power supply. 7.2. Inverter number( ) This parameter sets individual numbers with the inverters.
E6581222 42 7.3. Timer function( ) This function detect s any normal data that is not detected even once within an arbitrarily predeter- mined time.
E6581222 43 7.4. Setting function of communication waiting time ( ) Use this function for the f ollowing case: When the data response from the inverter is t oo quick after the PC had sent.
E6581222 44 8. Commands and monitoring from the computer Across the network, instructions (commands and frequency) can be sent to each inverter and the operating status of each inverter can be monit ored.
E6581222 45 Communication command2 (Communication Number : FA20) This command is enabled only when the communication command is enabled. Set Bit 15 of Com- munication Command 1 (communication Number: FA 00) to “1” (enable).
E6581222 46 Communication command3 (Communication number: FA26) The RY Terminal Output Hold Command and OUT Terminal Output Hold Command are always en- abled even though communication command priority is not set.
E6581222 47 8.2. Monitoring from the computer This section explains how to monitor the operating status of t he inverter from the computer. Monitoring of the operation frequency from the computer (FE00, FD00) Operation frequency (frequency immediately before the occurrence of a trip): Communication Number FE00 (Minimum unit: 0.
E6581222 48 Inverter operating status3 (FE42, FD42) Operating status 3(status immediat ely before the occurrence of a trip): Communication Number FE42 Operating status 3(current st at us): Communi.
E6581222 49 Inverter operating command mode status (FE45) The monitor of the command mode t hat the present condition is enabled Data Enabled command 0 Terminal board 1 Operation panel 2 Serial co.
E6581222 50 Alarm information monitor (FC91) Bit Specifications 0 1 Remarks (Code displayed on the panel) 0 Over-current alarm Normal Alarming flickering 1 Inverter overload alarm Normal.
E6581222 51 T rip code monitor ( current status: FC90: historic records: FE10 to FE13) Code Data (hexadeci- mal number) Data (decimal number) Description nerr 0 0 No error oc1 1 1 Over-current dur.
E6581222 52 Inverter model (capacity) code (FB05) Model Data (hexadecimal number) Data (decimal number) VFS11-2002PM-AN 1 1 VFS11-2004PM-AN 2 2 VFS11-2007PM-AN 4 4 VFS11-2015PM-AN 6 6 VFS11-2022PM.
E6581222 53 8.3. Control of input/output signals from communication The input terminals, out put terminals, analog input and output signals of the inverters can be con- trolled by communications. T erminal Output Data (F A50) The output terminals on the inverters can be c ontrolled directly by communications.
E6581222 54 Input terminal board status (FD06, FE06) Input terminal board status (stat us immediately before the occurrence of a trip): Communication Number FE06 Input terminal board status (curre.
E6581222 55 Analog Input Monitors (FE35, FE36) Analog input value VIA monitor: “Communication Number F E35” Analog input value VIB monitor: “Communication Number F E36” Data: 10bit resolution (Dat a range 0 to 1023) These monitors can also be used as an A/ D convert er independent of inverter control.
E6581222 56 8.4. Utilizing p a nel (LEDs and keys) by communication The VF-S11 can display data that is not related to the inverters t hrough an external controller or other means. Input by key operations can also be execut ed. The use of inverter resources reduces the cost for the entire system.
E6581222 57 Block Communication Function for LED Display To display LED data for ASCII display that is synchronized to each digit, set data for each digit and validate this set data by display selection by communication (Communication Number FA65).
E6581222 58 ■ ASCII LED display data code (00H-1F H are blank.) Hex Code Display Char. Hex Code Display Char. Hex Code Display Char. Hex Code Display Char.
E6581222 59 8.4.2. Key utilization by communication The VF-S11 can use the panel keys on the inverter s through external communications. This func- tion is available with CPU version 1 (C ommunication Number: FE08) = 104 or higher.
E6581222 60 9. Parameter data Explanation of parameters for VF-S11 series is described here. For communication purposes, see the parameter list on inverter's inst ruction manual regarding the communication number, adjustment range and so forth.
E6581222 61 ■ Command parameters For those parameters that contain data only in t he RAM and not in the EEPROM, their data return to initial values w hen the power is turned off, in failure resetting, or when standard shipment settings are set.
E6581222 62 ■ Monitor parameters * T hese parameter s are read-only (monitor-only) parameters. Communi- cation No. Title Function Unit Remarks FC00 - Monitor of key data (Effective data) - See 8.4. FC01 - Monitor of inverter keypad data - See 8.4. FC90 - T rip code - See 8.
E6581222 63 Appendix 1 T able of data codes • JIS (ASCII) codes Higher orde Lower order 0 1 234567 0N U L T C 7 (DLE) (SP) ０＠ Ｐ、ｐ 1T C 1 (SOH) DC 1 ! １ＡＱａｑ 2T C 2 (STX) DC 2 .
E6581222 64 Appendix 2 Response time The communication response time can be calculated f rom data communication time and inverter processing time. When wishing to know the communication response time,.
E6581222 65 Appendix 3 Comp atibility with the communications func- tion of the VF-S9 To provide consistency in communications proc edures, the communicat ions function of the VF-S11 series of inverters has been designed based on the pr otocols used for the T oshiba VF-S9 series of inverters.
E6581222 66E Appendix 4 T roubleshooting If a problem arises, diagnose it in accordance with the following table before making a service call. If the problem cannot be solved by any remedy described in the table or if no remedy to the problem is specified in the table, contact your Toshiba dealer.
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