Toshiba TOSVERT VF-AS1 instruction manual RFE03CR, RFE03077BCR

Page 19

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E6581315

„P (50H) (RAM*1 write)

This command is used to rewrite data into the parameter specified using a communication number. It writes data into the RAM only. It cannot be used to write data into any read-only parameters. Each time an attempt to write data is made the inverter checks whether the data falls within the specified range. If this check reveals that the data falls outside the range, the inverter will reject it and return an error code.

-Ex.: Entering the emergency stop command (communication number: FA00) from the computer <ASCII mode>

Computer → Inverter

Inverter → Computer

 

(PFA009000)CR

(PFA009000)CR

…Command priority, emergency stop

 

 

command

<Binary mode>

 

 

Computer → Inverter

Inverter → Computer

 

2F 50 FA 00 90 00 09

2F 50 FA 00 90 00 09

 

„R (52H) (Data read)

This command is used to read the setting of the parameter specified using a communication num- ber.

-Ex.: Monitoring the electric current (communication number: FE03) <ASCII mode>

Computer → Inverter

Inverter → Computer

 

(RFE03)CR

(RFE03077B)CR

…Current: 1915 / 100 = 19.15%

<Binary mode>

 

 

Computer → Inverter

Inverter → Computer

 

2F 52 FE 03 82

2F 52 FE 03 07 7B 04

 

„G (47H) (Data read)

This command is used to read the parameter data specified using a communication number. Alt- hough this command is used for the previous model to control the operation of two or more inverters in binary mode through a two-wire RS485 network, the “R” command can also be used without problems for the VF-AS1 series.

To use the “G” command, however, dummy data (2 bytes) is needed. This command is available only in binary mode.

- Ex.: Monitoring the electric current (communication number: FE03)

Computer → Inverter

Inverter → Computer

2F 47 FE 03 00 00 77

2F 47 FE 03 07 7B F9

*In this example, the data 00H sent from the computer to the inverter is dummy data.

„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 communication.

When writing in the frequency command (FA01, FA05) is enabled and a parameter other than it is specified, a communication number error will result. Data is written in the RAM only and at this time the data check such as an upper limit and lower limit checking is not carried out.

Data is not returned from the inverters while this command is used. This command can be used only in the binary mode.

For the details of the format, see “6.2 Transmission format for inter-drive communication.”

Use (%) as the unit for frequency command values specified by the command S, instead of (Hz), and the receiving side converts units for frequency values to “Hz” in accordance with the point con- version parameter. The conversion formula is shown below.

Frequency command value (Hz) =

Point 2 frequency (F813) − Point 1 frequency (F812)

Point 2 (F814) − Point 1 (F811)

x (Frequency command value (%)

−Point 1 (F811) + Point 1 frequency (F812) 18

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Contents E6581315② Tosvert VF-AS1 Series RS485 Communication FunctionE6581315 Read first Safety precautionsContents BIT15 BIT8BIT7 BIT0 General outlines of the communication functionBit Word BIT2 Data transmission specificationsAbout the handling of received frames Communication protocolMOUBUS-RTU Toshiba Inverter Protocol Binary mode 2FHData Data transmission format used in Ascii modeData transmission format INV-NO CMD28H Bytes Checksum area 5bytes BlankData SUM INV-NOData transmission format used in binary mode Sum 1 bytes Checksum not omissible 00H to FFH Command receivedReturned for the 57H W and 50H P commands Byte Bytes2FH Byte 4EH6EH Bytes NornTransmission format of Block Communication Page Bytes Blank Start Code INV-NO Block communication Computer Inverter CommandsDummy data is required for this command Reads the data with the specified communication numberRFE03077BCR RFE03CRPage Format error Data transmission format does not match Transmission errorsCommunication There is no communication number that matches Broadcast communication function VF-AS1 RFC90CR Examples of the use of communication commandsAscii mode Computer → Inverter Inverter → Computer From the computer H = 24d  trip statusExamples of Communication programs Goto =LENS$ For I=1 to LNext Input #1,B$If Count 0 then T=TIMER 160 T=TIMER COUNT=TIMER-TPrint #1,B$ Page MSComm1.Output = Text2.Text & Chr13 End Sub End IfText2.Text = Text1.Text = End Sub Inverter number  MODBUS-RTU protocolMODBUS-RTU transmission format Read commandCRC Text size is 8 bytes fixed Inverter Write commandBlank Command 1 byte 5bytes Blank Command 1 byteEnd Return CRC Error codesCRC Generation Bit counter =Inter-drive communication Never use pin-7 P11 QWiring 4-wire RS485 communication） E6581315 QWiring 2-wire RS485 communicationPage Parameters relating to the slave side example =0.01% Proportional control of speed80.00Hz 40.00Hz Slave 100.00Hz 00%90.00Hz 45.00Hz Slave 100.00Hz1 00%INV-NO 1 byte Inverter number Transmission format for inter-drive communication0OFF Communication parametersMODBUS-RTU Inverter number Baud rate,  , Parity INV INV → PC PC → INV „ Timer Time-out period Computer linkPC → INV Master INV To SlaveFree notes Send waiting time , Use this function for the following case OFF Commands and monitoring from the computerCommunication commands commands from the computer PI OFFBraking answer BA Electric Power quantityForcibly braked Preliminary excitation Brake release BWire RS485 communication FA32 Output terminal no Specified data output „ Terminal board output data FA50„ FM analog output FA51 „ AM analog output FA52RFD00CR Monitoring from the computerUnit 0.01% N·m BIT15 „ Input terminal board status FD06, FE06RES Input terminal function selection 9 f119„ Output terminal board status FD07, FE07 ST=ON ST=OFF „ Inverter operating status 1 FD01, FE01„ Inverter operating status 3 FD49, FE49 „ Inverter operating status 2 FD42, FE42„ Inverter operating frequency mode status FD46, FE46 „ Inverter operating command mode status FD45, FE45Preset speed operation „ Cumulative operation time alarm monitor FE79 „ Alarm information monitor FC91Bit Specifications Remarks E6581315 Model Data „ Inverter model capacity code FB05Parameter Name Range Setting LED setting by communicationUtilizing panel LEDs and keys by communication „ Block Communication Function for LED Display Blank Ascii LED display data code 00H-1FH are blankFA10=0 Key utilization by communicationFA10=1 Parameter data ROM EEPPage FE29 Input power Alarm codeFE02 Frequency command value 01Hz FE19 Torque commandE6581315 FD50 Light-load high-speed torque 01% Tion FE80 Cumulative power on timeFE84 Binary input value option ESC Appendix 1 Table of data codesCan SUBResponse time „ Data transmission time Appendix 2 Response timeVF-A7 Appendix 3 Compatibility with the communication functionAppendix 4 Troubleshooting Appendix 5 Connecting for RS485 communication TXB RXARXB TXA
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