Toshiba VF-AS1- Manuals

E 6 5 8 1 3 6 4 7 2. Commercial Power Supply/Inverter Switching The motor runs on commercial power supply under rated operating conditions and when the motor runs in energy saving mode with its input power frequency lowered, this circuit switches the motor to the inverter power without stopping the ...

E6581315 4 2.   Data transmission specifications Items Specifications Transmission scheme Half-duplex Synchronization scheme Start-stop synchronization Communication baud rate 9600/19200*/38400 bps (selectable using a parameter) *1 Communication protocol TOSHIBA Inverter Protocol * / MODBUS-RTU (sel...

E6581315 5 3. Communication protocol This communication protocol supports the TOSHIBA Inverter Protocol and part of MODBUS-RTUprotocol. Select the desired protocol from in the following communication protocol selection parameters(  ,  ). “Parameter Name   and  , Communication Number...

E6581315 6 4. TOSHIBA Inverter Protocol Select “TOSHIBA” (  ,  =  ) in the communication protocol selection parameters. “TOSHIBA” (  ,  =  ) is set for initial communication protocol selection of shipment setting. (See “3. Communication protocol.”) „ Exchange of data between the co...

E6581315 10 4.1.2.   Data transmission format used in binary mode A communication number is used to specify a data item, data is written in hexadecimal form, anddata in transmission characters are represented by binary codes (HEX codes). „ Computer → Inverter (binary mode) Omissible in one-to-one co...

E6581315 20 4.3.   Transmission errors „ Table of error codes Error name Description Error code Impossible to exe-cute The command is impossible to execute, though communication wasestablished normally.1 W riting data into a parameter whose setting cannot be changed during operation (e.g., maximum f...

E6581315 23 4.5.   Examples of the use of communication commands Here are some examples of the use of communication commands provided for the VF-AS1 series ofinverters.Inverter numbers and checksum used in ASCII mode are omitted from these examples. „ Examples of communication - To run the motor in ...

E6581315 24 4.6. Examples of Communication programs According to the hardware configuration of the computer used, select a serial output port. To use anRS232C port on the computer, you will have to prepare an RS232C-RS485 conversion unit sepa-rately.An USB-RS485 conversion unit (USB0001Z) is availab...

E6581315 30 5.1. MODBUS-RTU transmission format MODBUS-RTU sends and receives binary data without a frame-synchronizing start code and de-fines the blank time to recognize the start of a frame. MODBUS-RTU decides the data that is firstreceived subsequently as the first byte of a frame after a blank ...

E6581315 31 5.1.2. Write command (06) „ Computer → Inverter *The text size is 8 bytes fixed. Inverter No. Command Commu- nication No. (high) Commu- nication No. (low) W rite Data (high) W rite Data (low) CRC(low) CRC (high) (3.5bytes Blank) 06 (3.5bytes Blank) 1) Inverter No. (1 byte) : Specify an i...

E6581315 40 7. Communication parameters The settings of communication-related parameters can be changed from the operation panel andthe external controller (computer). Note that there are two types of parameters: parameters whosesettings take effect immediately after the setting and parameters whose...

E6581315 43 7.3. Communication time-out time (  ), Communication time-out action ( f804 ) The timer function is mainly used to detect a break in a cable during communication, and if no datais sent to an inverter within the preset time, this function makes the inverter trip (  ) or issue an a...

E6581315 44 7.4. Send waiting time (  ,  ) Use this function for the following case:W hen the data response from the inverter is too quick after the PC had sent the data to the inverter,PC process cannot get ready to receive the data, or when the USB/RS485, RS485/RS232C con-verter is used, c...

E6581315 45 8. Commands and monitoring from the computer Across the network, instructions (commands and frequency) can be sent to each inverter and theoperating status of each inverter can be monitored. 8.1. Communication commands (commands from the computer) „ Communication command (Communication n...

E6581315 46 „ Communication command2 (Communication Number : FA20, FA22) This command is enabled only when the communication command is enabled. Set Bit 15 of Com-munication Command 1 (communication Number: FA00, FA04) to “1” (enable). W hen enabling thecommunication command by Communication Command...

E6581315 47 „ Frequency setting from the computer “Communication Number: FA01, FA05” Setting range: 0 to maximum frequency ( fh ) This frequency command is enabled only when the frequency command by communication is en-abled. To make frequency commands from the computer valid, set the frequency sett...

E6581315 49 8.2. Monitoring from the computer This section explains how to monitor the operating status of the inverter from the computer. „ Monitoring of the output frequency from the computer (FD00, FE00) Output frequency (current status): “Communication Number FD00” (minimum unit: 0.01Hz)Output f...

E6581315 51 „ Output terminal board status (FD07, FE07) Output terminal board status (current status): “Communication Number FD07”Output terminal board status (status immediately before the occurrence of a trip): “CommunicationNumber FE07”Using terminal function selection parameters, functions can b...

E6581315 55 „ 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 Alarming  flickering 2 Motor overload alarm Normal Alarming  flickering 3 Overheat alarm Normal Alarm...

E6581315 59 „ Block Communication Function for LED Display To display LED data for ASCII display that is synchronized to each digit, set data for each digit andvalidate this set data by display selection by communication (Communication Number FA65).Synchronization can also be achieved by batch writi...

E6581315 67 Appendix 1 Table of data codes • JIS (ASCII) codes Higher orde Lower order 0 1 2 3 4 5 6 7 0 NUL TC 7 (DLE) (SP) ０ ＠ Ｐ 、 ｐ 1 TC 1 (SOH) DC 1 ! １ Ａ Ｑ ａ ｑ 2 TC 2 (STX) DC 2 ” ２ Ｂ Ｒ ｂ ｒ 3 TC 3 (ETX) DC 3 ＃ ３ Ｃ Ｓ ｃ ｓ 4 TC 4 (EOT) DC 4 ＄ ４ Ｄ Ｔ ｄ ｔ 5 TC 5 (ENQ) TC 8 (NAK) ％ ５ Ｅ Ｕ ｅ ｕ 6 TC 6 (A...

E6581315 68 Appendix 2 Response time The communication response time can be calculated from data communication time and inverterprocessing time. W hen wishing to know the communication response time, calculate using the following as a reference „ Data transmission time bits of number d transmitte by...

E6581315 69 Appendix 3 Compatibility with the communication function of the VF-A7 To provide consistency in communication procedures, the communication function of the VF-AS1series of inverters has been designed based on the protocols used for the Toshiba VF-A7 series ofinverters. W ith regard to co...

E6581315 70 Appendix 4 Troubleshooting If a problem arises, diagnose it in accordance with the following table before making a service call. Ifthe problem cannot be solved by any remedy described in the table or if no remedy to the problem isspecified in the table, contact your Toshiba dealer. Probl...

E6581315 71 Appendix 5 Connecting for RS485 communication „ Connector diagram for 2-wire RS485 communication                              „ Connecting diagram for 2-wire RS485 communication * Never use pin-7 (P11). Master RXD+/TXD+ RXD-/TXD- SG CN1 Pin-4 Pin-5 Pin-8 (Pin-3) Straight Straight Termina...