Toshiba VF-S11 User Manual

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TOSVERT VF-S11

Communications Function

Instruction Manual

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Notice

1. Make sure that this instruction manual is delivered to the end user of the inverter.

2. Read this manual before first using the communications function, and keep it handy as a

reference for maintenance and inspections.

* The contents of this manual are subject to change without notice.

2004

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Read first Safety precautions

This manual and labels on the inverter provide very 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. Read the safety precautions in the instruction manual for your inverter before reading this manual and strictly follow the safety instructions given.

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Notice

♦ Insert an electromagnetic contactor between the inverter and the power supply so that

the machine can be stopped without fail from an external controller in case of an emergency.

♦ Do not write the same parameter to the EEPROM more than 10,000 times. The life time

of EEPROM is approximately 10,000 times.(Some parameters are not limited, please refer to the “9.Parameter data “)

When using the TOSHIBA inverter protocol and the data does not need to be records, use P command (the data is written only to RAM).

♦ About the handling of the inverter, please follow the instruction manual of the inverter.

Reference

Inverter instruction manual

Section 4.2 “Commands”

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Contents

1. General outlines of the communications function........................................................................................................ 3

2. Data transmission specifications................................................................................................................................. 4

3. Communication protocol ............................................................................................................................................. 5

4. TOSHIBA Inverter Protocol......................................................................................................................................... 6

4.1. Data transmission formats.................................................................................................................................. 8

4.1.1. Data transmission formats used in ASCII mode ....................................................................................... 8

4.1.2. Data transmission formats used in binary mode ..................................................................................... 11

4.1.3. Transmission Format of Block Communication....................................................................................... 14

4.2. Commands ....................................................................................................................................................... 18

4.3. Transmission errors.......................................................................................................................................... 21

4.4. Broadcast communications function................................................................................................................. 22

4.5. Examples of the use of communication commands.......................................................................................... 24

4.6. Examples of RS232C communication programs .............................................................................................. 25

5. MODBUS-RTU protocol............................................................................................................................................ 30

5.1. MODBUS-RTU transmission format .............................................................................................................. 32

5.1.1. Read command (03) ............................................................................................................................... 32

5.1.2. Write command (06) ............................................................................................................................... 33

5.2. CRC Generation............................................................................................................................................... 34

5.3. Error codes....................................................................................................................................................... 34

6. Inter-drive communication......................................................................................................................................... 35

6.1. Speed proportional control ............................................................................................................................... 38

6.2. Transmission format for inter-drive communication.......................................................................................... 39

7. Communications parameters ....................................................................................................

7.1. Communication baud rate() , Parity bit().................................................................................. 41

7.2. Inverter number() ................................................................................................................................. 41

7.3. Timer function().................................................................................................................................... 42

7.4. Setting function of communication waiting time ()................................................................................ 43

7.5. Free notes() ......................................................................................................................................... 43

8. Commands and monitoring from the computer......................................................................................................... 44

8.1. Communication commands (commands from the computer) ........................................................................... 44

8.2. Monitoring from the computer........................................................................................................................... 47

8.3. Control of input/output signals from communication......................................................................................... 53

8.4. Utilizing panel (LEDs and keys) by communication.......................................................................................... 56

8.4.1. LED setting by communication................................................................................................................ 56

8.4.2. Key utilization by communication ............................................................................................................ 59

9. Parameter data ......................................................................................................................................................... 60

Appendix 1 Table of data codes........................................................................................................................................ 63

Appendix 2 Response time ............................................................................................................................................... 64

Appendix 3 Compatibility with the communications function of the VF-S9 ........................................................................ 65

Appendix 4 Troubleshooting.............................................................................................................................................. 66

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1. General outlines of the communications function

This manual explains the serial communications interface function provided for the TOSVERT VFS11 series of industrial inverters. The TOSVERT VF-S11 series of inverters can be connected to a computer or a controller (hereinafter referred to as the computer) for data communications via RS232C converter (RS2001Z) or RS485 converter (RS4001Z, RS4002Z, RS4003Z). By writing computer programs, you can monitor the operating status of the inverter, control its operation in various ways from the computer, and change and store parameter settings on storage devices.

The communication protocol is preparing the TOSHIBA Inverter Protocol and the MODBUS-RTU protocol. Please choose selection of a protocol with a communication protocol selection parameter

().

By preparing the program (explained later), the following information can be exchanged between the computer (host) and the inverter.

• Monitoring function (used to monitor the operating status of the inverter: Output frequency, current, voltage, etc.)

• Command function (used to issue run, stop and other commands to the inverter)

• Parameter function (used to set parameters and read their settings)

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<Inter-drive communication function> Master inverter sends the data, that is selected by the parameter, to all the slave inverters on the same network. This function allows a network construction in which a simple synchronous or proportional operation is possible among plural inverters (without the host computer).

As for data communications codes, the TOSVERT VF-S11 series of inverters support the binary (HEX) code, in addition to the JIS (ASCII) code. The communications function is designed on the assumption that the JIS (ASCII) code is used for communications between the inverter and the personal computer, and the binary (HEX) code for communications between the inverter and the microcomputer built into the controller. A communication number is used to access the desired data item.

* The smallest unit of information that computers handle is called a “bit (binary digit),” which repre-

sents the two numbers in the binary system: 1 or 0. A group of 16 bits is referred to as a “word,” which is the basic unit of information the VF-S11 series of inverters use for data communications. One word can handle data items of 0 to FFFFH in hexadecimal notation (or 0 to 65535 in decimal notation).

BIT15 BIT8BIT7 BIT0

1 bit

1 word

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2. Data transmission specifications

Items Specifications

Transmission scheme Half-duplex Synchronization scheme Start-stop synchronization Communication baud rate 1200/2400/4800/9600*/19200 bps (selectable using a parameter) Communication protocol TOSHIBA Inverter Protocol * / MODBUS-RTU Character transmission <ASCII mode> JIS X 0201 8-bit (ASCII)

<Binary mode, MODBUS-RTU> Binary codes fixed to 8 bits Stop bit length Received by inverter: 1 bit, Sent by inverter: 2 bits Error detecting scheme Parity *2: Even */odd/non parity (selectable using a parameter) *1,

checksum(Toshiba inverter protocol), CRC(MODBUS-RTU) Character transmission

11-bit characters *1 (Stop bit=1, with parity) format Order of bit transmission Low-order bits transmitted first Frame length Variable (to a maximum of 17 bytes)

*1: Changes to the communication baud rate and to the parity setting do not take effect until the in-

verter is turned back on or reset.

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*: Standard

default setting

*2: JIS-X-0201 (ANSI)-compliant 8-bit codes are used for all messages transmitted in ASCII mode

and vertical (even) parity bits specified by JIS-X-5001 are added to them. These even parity bits can be changed to odd parity bits by changing the parameter setting (a change to the parameter setting does not take effect until the inverter has been reset.)

*3: Here are the default character transmission formats. (Standard default setting)

Characters received: 11 bits (1 start bit + 8 bits + 1 parity bit + 1 stop bit) ... Standard default setting

START

BIT BIT0 BIT1 BIT2 BIT3 BIT4 BIT5 BIT6 BIT7

PARITY

BIT

STOP

BIT

The inverter receives one stop bit. (The computer can be set so as to send 1, 1.5 or 2 stop bits.)

Characters sent: 12 bits (1 start bit + 8 bits + 1 parity bit + 2 stop bits) ... Standard default setting

START

BIT BIT0 BIT1 BIT2 BIT3 BIT4 BIT5 BIT6 BIT7

PARITY

BIT

STOP

BIT

STOP

BIT

The inverter sends two stop bits. (The computer can be set so as to receive 1, 1.5 or 2 stop bits.)

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3. Communication protocol

This communication protocol supports the TOSHIBA Inverter Protocol and part of MODBUS-RTU protocol.

Select the desired protocol from in the following communication protocol selection parameters ().

“Parameter Name , Communication Number. 0829”

Data Range: 0, 1 (Initial value: 0) 0: TOSHIBA Inverter Protocol (Includes inter-drive communications) 1: MOUBUS-RTU protocol * A parameter change is reflected when the inverter is reset, such as in power off.

Note : When using the extension panel (RKP001Z) and the parameter writer (PWU001Z), be certain

to set F829=”0” : TOSHIBA inverter protocol.

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4. TOSHIBA 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. (See “3. Communication protocol.”)

■ Exchange of data between the computer and the inverter

In communications between the computer and the VF-S11 (hereinafter referred to as the inverter), the inverter is always placed in wait states and acts as a slave that operates on a request from the computer. A start code is used to automatically identify the mode in which data is transmitted: ASCII mode or binary mode. A transmission error will result if the transmission format does not match.

■ ASCII mode

(1) In ASCII mode, the start code is “(”

The inverter rejects all data items entered invalid the “(” If two or more “(” are entered, the “(” entered last will be valid and all “(“ entered before will be ignored. If the “(” is not recognized because of a format error or for any other reason, no error code will be returned since the data is not recognized at all. In such cases, the inverter regards the data received as a transmission error, rejects it and goes back into a start code wait state.

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(2) When an inverter number is added behind the “(” communications will take place only in case of

broadcast communication or if the number matches up with that assigned to the inverters. If not, the inverter will go back into a start code wait state.

(3) The inverter stops receiving data on receipt of the CR (carriage return) code inserted in the des-

ignated position. If the size of the data transmitted exceeds the maximum allowable size (17 bytes) or if the CR code cannot be found in the designated position within 0.5 seconds, the inverter will regard the data received as a transmission error and go back into a start code wait state.

(4) If no communications take place within the time specified using the timer function, the computer

will regard it as a communication error and trip the inverter. The timer setting is cleared when the timer is turned on or initialized. For more details, see Section 7.3, “Timer function.”

(5) On executing the command received, the inverter returns data to the computer. For the response

time, see Appendix 2, “Response time.”

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■ Binary mode

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(1) In binary mode, the start code is “2FH(/).”

The inverter rejects all data items entered before the “2FH(/).” If two or more “2FH(/)” are entered, the “2FH(/)” entered last will be judged valid and all “2FH(/)” entered before will be ignored. If the “2FH(/)” is not recognized because of a format error or for any other reason, no error code will be returned since the data is not recognized at all. In such cases, the inverter regards the data received as a transmission error, rejects it and goes back into a start code wait state.

(2) If an inverter number is added behind the “2FH(/),” communications will take place only in case of

broadcast communication or if the number matches up with that assigned to the inverters. If not, the inverter will go back into a start code wait state.

(3) The inverter stops receiving data on receipt of a command and the number of bytes of data

specified by the command. If no command is found in the data received or if the specified number of bytes of data cannot be received within about 0.5 seconds, the inverter will regard the data received as a transmission error and go back into a start code wait state.

(4) If no communications take place within the time specified using the timer function, the computer

will assume that a communication error has occurred and trip the inverter. The timer function is disabled when the inverter is turned on or initialized. For details, see Section 7.3, “Timer function.”

■ Note

(5) On executing the command received, the inverter returns data to the computer. For the response

time, see Appendix 2, “Response time.”

Communication is not possible for about one second after the power is supplied to the inverter until the initial setting is completed. If the control power is shut down due to an instantaneous voltage drop, communication is temporarily interrupted.

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4.1. Data transmission formats

■ Note: The term “trip status” used in this manual includes retry waiting status and trip retention status.

4.1.1. Data transmission formats used in ASCII mode

A communication number is used to specify a data item, all data is written in hexadecimal, and JISX-0201 (ASCII (ANSI))-compliant transmission characters are used.

■ Computer → VF-S11

Omissible in one-to-one communications For the W and P commands only Omissible

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"("

(28H)

1. “(“ (1 byte) : Start code in ASCII mode

2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00 (30H, 30H) to 99 (39H,

3. CMD (1 byte) : Command (For details, see the table below.)

4. Communication No.(4 bytes)

5. Data (0 to 4 bytes) : Write data (valid for the W and P commands only)

6. “&” (1 byte) : Checksum discrimination code (omissible. When omitting this code, you also need to omit

INV-NO

2 bytes

CMD

1 byte

39h), *(2AH) The command is executed only when the inverter number matches up with that specified using a parameter. (When * is specified in broadcast communications, the inverter number is assumed to match if all numbers except * match. When * is specified instead of each digit (two-digit number), all inverters connected are assumed to match.) If the inverter number does not match or if the inverter number is of one digit, the data will be judged invalid and no data will be returned.

: Communication number (See 11, “Parameter data.”)

the checksum.)

Communication No.

4 bytes

Checksum area

DATA

0 to 4 bytes

"&"

(26H)

SUM

2 bytes

Omissible

")"

(29H)CR(0DH)

7. Sum (2 bytes) : Checksum (omissible) Add the ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits (ASCII codes) from the start code to the checksum discrimination code. Ex.: (R0000&??) CR

28H+52H+30H+30H+30H+30H+26H=160H The last two digits represent the checksum. = 60 When omitting the checksum, you also need to omit the checksum discrimination code.

8. “)” (1 byte) : Stop code (omissible)

9. CR (1 byte) : Carriage return code

■ Details of commands and data

CMD (1 byte) Write data (0 to 4 bytes) Hexadecimal number R (52H): RAM read command W (57H): RAM/EEPROM write command P (50H) RAM write command

No data Write data (0 to FFFF) Write data (0 to FFFF)

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■ VF-S11 → computer

At time of broadcast communication, returning of data is not executed, except for the inverters to be

returned, when the inverter number is not matched, and the inverter number has only one character.

This is because there will be a risk of that the returned data may be deformed.

• Data returned when data is processed normally (ASCII mode) Omissible Omissible

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"("

(28H)

1. “(“ (1 byte) : Start code in ASCII mode

2. INV-NO (2 bytes) : Inverter number (omitted if it is not found in the data received) ... 00 (30H, 30H) to 99 (39H,

3. CMD (1 byte) : Command ... The command is also used for a check when an inverter is tripped.

4. Communication No.(4 bytes) :

INV-NO

2 bytes

CMD

1 byte

39H) If the inverter number matches up with that specified using a parameter, data will be returned to the computer. In broadcast communications, only the destination inverter (with a number matching up with the smallest effective number) returns data to the computer. In broadcast communications, no data is returned from any inverters except the inverter bearing a number that matches up with the smallest effective number. Ex.: (*2R0000) CR -> (02R00000000) CR)

Under normal conditions... The uppercase letter R, W or P is returned, depending on the command received: R, W or P command. When an inverter is tripped... The lowercase letter r, w or p is returned, depending on the command received: R, W or P command. (The command received is returned with 20H added to it.)

The communication number received is returned.

Communication No.

4 bytes

Checksum area

Data is returned from the inverter with the number 2 only, but no data is returned from

inverters with the number 12, 22 ....

DATA

0 to 4 bytes

"&"

(26H)

SUM

2 bytes

Omissible

")"

(29H)CR(0DH)

5. Data (0 to 4 bytes) : Data ... The data read in is returned for the R command, while the data received is returned for the W and P commands. If the data received is composed of less than 4 digits, it will be converted into 4-digit data and returned. Ex.: (W123412) CR → (W12340012) CR)

6. “&” (1 byte) : Checksum discrimination code (omitted if it is not found in the data received)

7. Sum (2 bytes) : Checksum ... Omitted if no checksum discrimination code is found in the data received. ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits (ASCII codes) from the start code to the checksum discrimination code.

8. “)” (1 byte) : Stop code (omitted if it is not found in the data received)

9. CR (1 byte) : Carriage return code

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• Data returned when data is not processed normally (ASCII mode) In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type number is returned to the computer in addition to the checksum. At time of broadcast communication of the binary mode, returning of data is not executed except for the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This is because there will be a risk that the returned data may be deformed.

Omissible Omissible

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“(“

(28H)

INV-NO

2 bytes

“N” or “n”

(4EH) (6EH)

DATA

4 bytes

"&" (26H)

SUM

2 bytes

")"

(29H)

CR (0DH)

Checksum area

Omissible

“(“ (1 byte) : Start code in ASCII mode

1) N or n (1 byte) :Communication error command ... This is also used for the checking of inverter trip.

“4EH(N)” for the normal communication and “6EH(n)” during the inverter trip.

Data (4 bytes) : Error code (0000~0004)

0000 ... Impossible to execute (Although communication is established normally, the com-

mand cannot be executed because it is to write data into a parameter whose setting cannot be changed during operation (e.g., maximum frequency) or the EEPROM is faulty.)

0001 ... Data error (The data is outside the specified range or it is composed of too many

digits.) 0002 ... Communication number error (There is no communication number that matches.) 0003 ... Command error (There is no command that matches.) 0004 ... Checksum error (The checksum result differs.)

“)” (1 byte) : Stop code ... This code is omitted if it is not found in the data received.

■ Examples: (N0000&5C)CR... Impossible to execute (e.g., a change of maximum frequency data during opera-

tion) (N0001&5D) (N0002&5E) (N0003&5F)

... Data error (Data is outside the specified range.)

... No communication number (There is no communication number that matches.)

... There is no command that matches. (Commands other than the R, W and P com-

mands)

(Ex.: L, S, G, a, b, m, r, t, w ...) (N0004&60)

... Checksum error (The checksum result differs.)

No data returned ... Format error or invalid inverter number

(Ex.: A code other than the stop code (“)”) (Ex.: ”｝”) is entered in the stop code

position or the CR code was not found within 0.5 sec.)

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4.1.2. Data transmission formats 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 represented by binary codes (HEX codes).

■ Computer → VF-S11 (binary mode)

Omissible in one-to-one communications No data for the 52H (R) command

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“/”

(2FH)

1. 2FH (“/”) (1 byte) : Start code in binary mode

2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00H to 3FH ,FFH

3. CMD (1 byte) : Command (For details, see the table below.)

4. Communication No.(2 bytes)

5. Data (2 bytes) : 0000H to FFFFH

INV-NO

1 byte

In case the inverter number is other than FFH (broadcast communication), command is ex-

ecuted only when the inverter number coincides with the one designated with the panel. If

the inverter number is not matched, it will be judged invalid and the data is not returned.

52H (R) command: The size of the data following CMD is fixed to 3 bytes. (Communication number: 2 bytes, checksum: 1 byte) 57H (W), 50H (P) and 47H (G) commands: The size of the data following CMD is fixed to 5 bytes. (Communication number: 2 bytes, data: 2 byte, checksum: 1 byte) Any command other than the above is rejected and no error code is returned.

: Communication number (See 11, “Parameter data.”)

57H (W) and 50H (P) commands: Write data (An area check is performed.) 47H (G) command: Dummy data (e.g., 0000) is needed. 52H (R) command: Any data is judged invalid. (No data should be added.)

CMD

1 byte

Communication No.

2 bytes

Checksum area Not omissible

DATA

2 bytes

SUM

1 byte

6. Sum (2 bytes) : Checksum (not omissible) 00H to FFH Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code of the data returned to the data (or to the communication number for the 52H (R) command) Ex.: 2F 52 00 ?? ... 2FH+52H+00H+00H=81H The last two digits (??) represent the checksum. = 81

■ Details of commands and data

CMD (1 byte) Write data (2 bytes) Hexadecimal number 52H (R): RAM read command 57H (W): RAM/EEPROM write command 50H (P): RAM write command 47H (G): RAM read command (for two-wire networks)

No data Write data (0000H to FFFFH) Write data (0000H to FFFFH) Dummy data (0000H to FFFFH)

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■ VF-S11 → computer (binary mode) At time of broadcast communication of the binary mode, returning of data is not executed except for

the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This is because there will be a risk that the returned data may be deformed.

• Data returned when data is processed normally (Binary mode)

Omissible

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“/”

(2FH)

1. 2FH (“/“) (1 byte) : Start code in binary mode

2. INV-NO (2 bytes) : Inverter number... 00H to 3FH (The inverter number is omitted if it is not found in the data

3. CMD (1 byte) : Command...The command is also used for a check when the inverter is tripped.

4. Communication No. (4 bytes)

5. Data (2 bytes) : Data ... 0000H to FFFFFH

6. Sum (1 bytes) : Checksum (not omissible) 00H to FFH

INV-NO

1 byte

received.) If the inverter number matches up with that specified from the operation panel, data will be returned from the inverter. If the inverter number does not match, the data will be invalid and no data will be returned.

Under normal conditions...52H (R), 47H (G), 57H (W) or 50H (P) is returned, depending on the command received. When the inverter is tripped...The lowercase letter 72H (r), 67H (g), 77H (w) or 70H (p) is returned with 20H added to it, depending on the command received.

: The communication number received is returned.

The data read is returned for the 52H (R) and 47H (G) commands, while the data written is returned for the 57H (W) and 50H (P) commands.

Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code to the data.

CMD

1 byte

Communication No.

2 bytes

Checksum area Not omissible

DATA

2 bytes

SUM

1 byte

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2) Error Processing (Binary mode) In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type number is returned to the computer in addition to the checksum. At time of broadcast communication of the binary mode, returning of data is not executed except for the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This is because there will be a risk that the returned data may be deformed.

Omissible

(1 byte) (1 byte)

“/”

(2FH)

N or n (1 byte) : Communication error command ... This command is also used for a check when the inverter

Data (2 bytes) : Error code (0000~0004)

INV-NO

1 byte

is tripped.

“4EH (N)” is returned under normal conditions, while “6EH (n)” is returned when the in-

verter is tripped.

0000 ... Impossible to execute (Although communication is established normally, the com-

0001 ... Data error (The data is outside the specified range or it is composed of too many

0002 ... Communication number error (There is no communication number that matches.) 0004 ... Checksum error (The checksum result differs.)

N or n

(4EH)(6EH)

Checksum area Not omissible

mand cannot be executed because it is to write data into a parameter whose setting cannot be changed during operation (e.g., maximum frequency) or the EEPROM is faulty.)

digits.)

DATA

2 bytes

SUM

1 byte

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■ Examples:

No code returned ...Command error, format error (failure to receive the specified number of

bytes within 0.5 seconds, or an parity, overrun or framing error) or the inverter number does not match or an inverter in broadcast communication in the binary mode except for the inverter for data returning (the in- verter numbered 00H).

2FH, 4EH, 00H, 00H, 7DH ... Impossible to execute (e.g., a change of maximum frequency data

during operation)

2FH, 4EH, 00H, 01H, 7EH ... Data setting error (The data specified falls outside the specified

range.)

2FH, 4EH, 00H, 02H, 7FH ... No communication number (There is no communication number that

matches.)

2FH, 4EH, 00H, 04H, 81H ... Checksum error (The checksum result differs.)

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4.1.3. Transmission 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 type of data desired for communication in the block communication parameters (, ,  to ) in advance. Block communications can save the communication time.

Data is transmitted hexadecimal using the binary (HEX) code transmission characters. “Computer

→ inverter” is for writing only, while “Inverter → computer” for reply is for reading only.

■ Computer → VF-S11 (Block Communications)

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Number of writing data groups x 2 bytes

Number of

read data

groups

Write data1

High

Write data1

Low

Write data2

High

Write

data2

Low

Start

Code

“／”

Omissible

INV-NO CMD

“X”

Num-

ber of

write data

groups

Checksum Area

1. 2FH(“/”) (1 byte) : Start code of binary mode

2. INV-NO (1 byte) : Inverter number. (Can be omitted in 1:1 communications): 00H to 3FH, FFH Executed only when the inverter number matches the inverter number. Set on the panel, except in FFH (broadcast communication). Communication data will be invalidated and data will not be returned either if the inverter number. Does not match.

3. CMD (1 byte) : ‘X’ (Block communication command)

4. Number of write data groups (1 byte)

: Specify the number of data groups to be written (00H to 02H).

If specified outside of the range, data will be treated as a format error and data will not be returned.

5. Number of read data groups (1 byte)

: Specify the number of data groups to be read (00H to 05H).

If specified outside of the range, data will be returned as “Number of read data groups = 0” when returned by the inverter.

SUM

6. Write data1 (2 bytes)

: Needed when the number of write data groups is larger than 1.

Data to be written to the specified parameter selected by  Dummy data is needed if the number of write data groups is larger than 1 even　though(none) is selected for 

7. Write data2 (2 bytes)

: Needed when the number of write data groups is 2.

Data to be written to the specified parameter selected by 

Dummy data is needed if the number of write data groups is 2 even　though(none) is selected for 

8. SUM (1 byte) : Checksum (Cannot be omitted) 00H to FFH Lower two digits (1 byte) of total sum from start code (SUM value not included)

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■ Block Write 1, 2

Select data, which is desired to be written in block communications, in Block Communication Write Data 1 and 2 Parameters (, ). This parameter becomes effective when the system is reset, such as when power is turned off. When the setting is completed, turn off and then on the power.

No. Block Write Data For data details, see:

0 No selection −

1 Command 1 (FA00) “8.1 Command by communication” 2 Command 2 (FA20) “8.1 Command by communication” 3 Frequency Command Value (FA01) “8.1 Command by communication”

4 Terminal Board Output Data (FA50)

5 Communication Analog Output (FA51)

* When “No selection” is specified in the parameters, no data will be written even though write data is

specified.

■ Block Read 1 to 5

“8.3 Control of input/put signals from communication” “8.3 Control of input/put signals from communication”

Select read data, which is desired to be read in block communications, in Block Communication Read Data 1 and 5 Parameters (to). This parameter becomes effective when the system is reset, such as when power is turned off. When the setting is completed, turn off and then on the power.

No. Block Read Data For data details, see:

0 No selection −

1 Status 1 (FD01) “8.2 Monitoring from communication” 2 Output Frequency (FD00) “8.2 Monitoring from communication” 3 Output Current (FE03) “9. Parameter data” 4 Output Voltage (FE05) “9. Parameter data” 5 Alarm Information (FC91) “8.2 Monitoring from communication” 6 PID Feedback Value (FE22) “9. Parameter data”

7 Input Terminal Board Monitoring (FD06)

8 Output Terminal Board Monitoring (FD07)

9 Analog Monitoring VIA (FE35)

10 Analog Monitoring VIB (FE36)

* Output current (FE03), output voltage (FE05) and PID feedback value (FE22) will become hold data

during a trip. Otherwise, real-time data appears.

* “0000” will be returned as dummy data, if “0 (No selection)” is selected for the parameter and “read”

is specified.

“8.3 Control of input/put signals from communication” “8.3 Control of input/put signals from communication” “8.3 Control of input/put signals from communication” “8.3 Control of input/put signals from communication”

Page 18

■ VF-S11 → Computer At time of broadcast communication of the binary mode, returning of data is not executed except for

the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This is because there will be a risk that the returned data may be deformed.

1) Normal processing

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Omissible

Start Code

“／”

INV No.

CMD

“Y”

Number

of Read

Data

Groups

Write

Status

Read data1

high

Read data1

low

Number of read data groups x 2 bytes

Read

data2

high

Read data2

low

Read

data3

high

Checksum area

1. 2FH “/” (1 byte) ：Start code in binary mode

2. INV-NO (1Byte) ：Inverter number･･･00H to 3FH

If the inverter number matches up with that specified from the operation panel, data will be returned from the inverter. If the inverter number does not match, the data will be judged invalid and no data will be returned. Communication data will be invalidated and data will not be returned either if the inverter number does not match. (Inverter number is considered matched if it is omitted during reception)

3. CMD(1Byte) :‘Y’ (Block communication command [monitoring]) Lowercase letter ‘y’ during an inverter trip, including standing by for retrying and during a trip.

4. Number of read data groups (1 byte)

: Return the number of data groups to be read (00H to 05H).

5. Write status (1 byte) : Return 00H to 03H. * Failing to write in the specified parameter in the number of write data groups, set “1” in the corresponding bit for the parameter failed to write. (See below.)

Read data3

low

Read data4

high

Read data4

low

Read data5

high

Read data5

low

SUM

Bit Position 7 6 5 4 3 2 1 0

Data Type −  

6. Read data1 - 5 (2 bytes)

: Return according to the number of read data groups. “0000H” is returned as dummy data if “0” is selected as a parameter.

Read data1: Data selected by . Read data2: Data selected by .

Read data3: Data selected by . Read data4: Data selected by .

Read data5: Data selected by .

7.SUM(1Byte) : Checksum (Cannot be omitted) 00H to FFH

Lower two digits (1 byte) of total sum from start code of return data to read data.

■ Example (When set as follows:  =  (Command 1),  =  (frequency command value),

 =  (status), =  (output frequency),  =  (output current),  =  (output voltage) and  =  (alarm)

Computer → Inverter：2F 58 02 05 C4 00 17 70 D9 Inverter → Computer：2F 59 05 03 00 00 00 00 00 00 00 00 00 00 90 (When parameter is not set) Inverter → Computer：2F 59 05 00 40 00 00 00 00 00 00 00 00 00 CD CD (When parameter is set) Inverter → Computer：2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D (During operation at 60Hz)

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Omissible

(1 Byte) (1 Byte)

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“／”

(2FH)

“N” or “n” (1 byte) : Communication error command. Also for check during an inverter trip (includes standing by

DATA (2 bytes) : Error code (0004)

■ Examples

Computer → Inverter : 2F 58 02 05 C4 00 17 70 D8

Inverter → Computer : 2F 4E 00 04 81 ... Checksum error

INV-NO

1 Byte

for retrying and trip holding). “4EH (N)” when normal, “6EH (n)” during an inverter trip.

0004 : Checksum error (The checksum does not match) No return : Command error, format error (specified number of bytes is not received in 1sec,

“N” or “n”

(4EH)(6EH)

Checksum Area Not omissible

or parity error, overrun error or framing error), inverter number mismatch, and inverter number other than 00H in broadcast communication.

DATA

2 Bytes

SUM

1 Byte

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4.2. Commands

Here are the communication commands available.

Command Function

R command Reads the data with the specified communication number.

W command Writes the data with the specified communication number. (RAM and EEPROM).

P command Writes the data with the specified communication number. (RAM).

G command

X command Block communication (Computer -> Inverter) Y command Block communication (Inverter -> Computer)

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Reads the data with the specified communication number. (For binary mode only. Dummy data is required for this command.)

 W (57H) (RAM

This command is used to write new data into the parameter specified using it communication number. It writes data into the RAM and EEPROM. For parameters whose settings cannot be stored in the EEPROM (e.g., parameter with the communication number FA00), the W (57H) command writes data into the RAM only. It cannot be used to write data into read-only parameters (e.g., parameter with the communication number FD?? or FE??). Each time an attempt to write data is made, the inverter checks if the data falls within the specified range. If this check reveals that the data falls outside the specified range, the inverter will reject it and return an error code.

- Ex.: Setting the deceleration time (communication number: 0010) to 10 sec. <ASCII mode>

♦ Do not write the same parameter to the EEPROM more than 10,000 times. The life time of EEPROM is

approximately 10,000 times.(Some parameters are not limited, please refer to the “9.Parameter data “) The lifetime of EEPROM is approximately 10,000 times. When using the TOSHIBA inverter protocol and the data does not need to be records, use P command (the data is written only to RAM).

/EEPROM*2 write)

CR: Carriage return

Computer → Inverter Inverter (W00100064)CR (W00100064)CR …(10÷0.1=100=0064H)

Computer → Inverter Inverter 2F 57 00 10 00 64 FA 2F 57 00 10 00 64 FA …(10÷0.1=100=0064H)

→ Computer

Notice

■ Explanation of terms *1: The RAM is used to temporarily store inverter operation data. Data stored in the RAM is cleared

*2: The EEPROM is used to store inverter operation parameter settings, and so on. Data stored in

when the inverter is turned off, and data stored in the EEPROM is copied to the RAM when the inverter is turned back on.

the EEPROM is retained even after the power is turned off, and it is copied to the RAM when the inverter is turned on or reset.

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 P (50H) (RAM

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 (PFA009000)CR (PFA009000)CR …Command priority, emergency stop

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 number. (When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire line, the execution of the R command could result in a communication error. To avoid this, use the G command in binary mode when inverters are connected to a two-wire line.)

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

Computer → (RFE03)CR (RFE03077B)CR …Current: 1915 / 100 = 19.15%

Computer → 2F 52 FE 03 82 2F 52 FE 03 07 7B 04

→ Computer

command

Inverter Inverter → Computer

When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire line, use the G command to read data.

 G (47H) (Data read)

This command is used to read the parameter data specified using a communication number. To send this command to an inverter with two-wire type RS485 network, 2bytes of dummy data are needed. This command is available only in binary mode.

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

Computer → Inverter Inverter 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.

Notice

→ Computer

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 S (53 H)/ s (73 H) Inter-drive communication command(RAM

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. When writing in the frequency command (FA01) is enabled and a parameter other than it is specified, a communication number error will result. Data is written in the RAMs 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 conversion 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)

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

When Command “s” (lowercase letter) is received, the slave side judges that the master side is tripped and operates in accordance with the inter-drive communication parameter ().

For detail, see "7. Communication parameters ".

- Examples: 50% frequency command (If maximum frequency = Frequency for operation at 80Hz = 40Hz: 50% = 5000d = 1388H)

Write)

x (Frequency command value (%)

Master inverter → Slave inverter Slave inverter 2F 53 FA 01 13 88 18 No return

 X(58H)/Y (59H) (Block Communication Command)

Data selected in the block communication write parameters (,) is written in the RAMs. When returning data, data selected in block communication read parameters ( to ) is read and is returned.

- Examples: 60Hz operation command from communication and monitoring (Monitoring when already operating at 60Hz) (Parameter Setting:

, = 

<Binary mode> Computer → Inverter Inverter 2F 58 02 05 C4 00 17 70 D9 2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D

 = , = ,  = ,  = ,  = ,  =

)

→ Master inverter

→ Computer

Page 23

4.3. Transmission errors

■ Table of error codes

Error name Description Error code

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Impossible to exe-

cute

The command is impossible to execute, though communication was

established normally.

0000

1 Writing data into a parameter whose setting cannot be changed

during operation (e.g., maximum frequency)

2 Writing data into a parameter while “” is in progress

3 The maintenance command is issued.

Data error Invalid data is specified. 0001

Communication

number error

There is no communication number that matches.

Ex.: In the case of (R0)))) CR, 0))) is recognized as a communication

0002

number.

Command error The command specified does not exist. 0003 (ASCII mode)

No code returned (Binary

mode)

Checksum error The Checksum does not match. 0004

Format error The data transmission format does not match.

No code returned

1 One-digit inverter number (ASCII mode)

2 The CR code is found in the designated position. (ASCII mode)

Ex.:Communication number of 4 digit or less. In the case of (R11)

CR, 11) CR is recognized as a communication number and

the CR code is not recognized, with the result that a format er-

ror occurs.

3 A code other then the stop code (“)”) is entered in the stop code

position.

4 The specified number of bytes of data are not received within 0.5

sec.

Receiving error A parity, overrun or framing error has occurred.

No code returned

*1: For parameters whose settings cannot changed during operation, see 11.1, Table of parame-

ters.”

*2: In binary mode, no data will be returned if a command error occurs. When the maintenance

command (M) is issued, an impossible-to-execute error occurs and an error code is returned.

*3: Parity error : The parity does not match.

Overrun error : A new data item is entered while the data is being read. Framing error : The stop bit is placed in the wrong position.

* For the errors with “no code returned” in the above table, no error code is returned to avoid a data

crash. If no response is received, the computer side recognizes that a communication error has occurred. Retry after a lapse of some time.

* If the inverter number does not match, no processing will be carried out and no data will be re-

turned, tough it is not regarded as an error.

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4.4. Broadcast communications function

Broadcast communication function can transmit the command (write the data) to multiple inverters by one communication. Only the write (W, P) command is valid and the read (R, G) command is invalid. The inverters subject to the broadcast communication are the same to the independent communication; 0 to 99 (00H - 63H) in the ASCII mode, and 0 to 63 (00H - 3FH) in the binary mode. To avoid data deforming, the inverters to return data will be limited. A RS485 communication converter unit (RS4001Z, RS4002Z or RS4003Z) will be needed to control multiple inverters on the network.

■ “Overall” broadcast communications (ASCII mode / Binary mode)

- ASCII Mode If you enter two asterisks (**) in the inverter number position of the data transmission format, the computer will send the data simultaneously to all inverters (with an inverter number between 0 and 99 (00 to 63H)) on the network.

- Binary Mode

To put "FF" to the specified place of the inverter number in the communication format validates the

broadcast communication and the command is transmitted to all the applicable inverters in the net-

work (inverter numbers from 0 to 63 (00 to 3FH)).

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<Inverter that returns data to the computer> Data is returned from the inverter bearing the inverter number 00 only. If you do not want inverters to return data, do not assign the number 00 to any inverter on the network.

■ “Group” broadcast communications (ASCII mode only) If you put “*?” In the inverter number position of the data transmission format, data will be sent

simultaneously to all inverters bearing a number whose digit in the one’s place in decimal notation is”?” If you put ”?*” In the inverter number position of the data transmission format, the data will be sent simultaneously to all inverters bearing a number whose digit in the ten’s place in decimal notation is”?”. (“?”: Any number between 0 and 9.)

<Inverter that returns data to the computer> Data is returned only from the inverter bearing the smallest number in the same group of inverters (i.e., inverter whose number in the position of ”*” is 0). If you do not want inverters to return data to the computer, do not assign a number having a 0 in the position of “*” to any inverter on the network.)

■ Examples of broadcast communications Ex: Set the frequency setting for communication to 60Hz.

1 Host computer → Multiple inverters: broadcast communications (ASCII Mode)

Example of transmission of data from host computer to inverter: (**PFA011770) Example of data returned from inverter to host computer: (00PFA011770) Data is returned from the inverter numbered 00 only, while commands are issued to all inverters connected to the network.

2 Host computer → A specific group of inverters: group communications (ASCII Mode)

Example of transmission of data from host computer to inverters: (*9PFA011770) Example of data returned from inverter to host computer: (09PFA011770)

Data is returned only the inverter numbered 09 only, while commands are issued to a maximum of 10 inverters bearing the number 09, 19, 29, 39, ... or 99.

3 Host computer → Multiple inverters: broadcast communications (Binary Mode)

Example of transmission of data from host computer to inverters: 2F FF 50 FA 01 17 70 00 Example of data returned from inverter to host computer: 2F 00 50 FA 01 17 70 01

Returning is possible only for the inverter that has the number 00, and the command is transmitted to all the applicable inverter connected in the network.

Page 25

•

An example of system configuration (schematic diagram)

E6581222

Host computer

RS485 communication converter unit (RS4001Z, RS4002Z or RS4003Z) will be needed to control multiple inverters on the network.

Block 1

Inverter No. 10 Inverter No.11 Inverter No.19

VF-S11

VF-S11 VF-S11 VF-S11 VF-S11 VF-S11

Inverter No.20 Inverter No.21 Inverter No.29

Block 2

*1: Error signal I/F

In broadcast communications, only the representative inverter 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.

Set the timer function so that, if a time-out occurs, the inverter will trip (Ex.: = (sec)), set the output terminal selection parameter (FL) so that trip information will be output through the output terminal (=), and set the input terminal selection parameter (F) of the representative inverter in each block to “external input trip (emergency stop)” (=). Then, connect the input terminal (F) of the representative inverter to the FL terminal of each of the other inverters in the same block. In this setting, if an inverter trips, the representative inverter will come to an emergency stop, and as a result it will report the occurrence of a problem in its block to the computer. (If the representative inverter returns a lowercase letter in response to a command from the computer, the computer will judge that a problem has arisen in an inverter.) To examine details on the problem that has arisen, the host computer accesses each individual inverter, specifying its communication number. To make the computer issue a command to all inverters in block 1 or block 2 shown in the figure above, specify “1*” or “2*”, respectively. In this system, inverter No. 10 will return data to the computer if a problem arises in block 1, or inverter No. 20 if a problem arises in block 2. For overall broadcast communications, specify “**”, in which case the inverter with the communication number “00” will return data to the computer.

In this example, if you want the computer to maintain communications without bringing an representative inverter to an emergency stop, set its input terminal selection parameter to “disabled (=) but not to “external input trip (emergency stop).” This setting causes the host computer to check the setting of the input terminal information parameter (communication number: FE06) of the representative inverter, and as a result enables the computer to detect the occurrence of a problem.

CAUTION: Data from inverters will be deformed if inverters of the same number are connected on the network. Never assign same single numbers to inverters on the network.

Page 26

4.5. Examples of the use of communication commands

Here are some examples of the 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.

■ Examples of communications

- To run the motor in forward direction with the frequency set to 60 Hz from the computer

Computer → Inverter Inverter → Computer (PFA011770)CR (PFA011770)CR …Set the operation frequency to 60 Hz.

(60 / 0.01 Hz = 6000 = 1770H)

(PFA00C400)

Computer → Inverter Inverter → Computer

2F 50 FA 01 17 70 01 2F 50 FA 01 17 70 01

2F 50 FA 00 C4 00 3D 2F 50 FA 00 C4 00 3D

CR (PFA00C400)CR …Set to “forward run” with commands and frequency

instruction from the computer enabled.

E6581222

- To monitor the operation frequency (during 60 Hz operation)

Computer → Inverter Inverter → Computer (RFD00)CR (RFD001770)CR …Set the operation frequency to 60 Hz.

(60÷0.01Hz=6000=1770H)

Computer → Inverter Inverter → Computer

2F 52 FD 00 7E 2F 52 FD 00 17 70 05

- To monitor the status of the inverter

Computer → Inverter Inverter → Computer (RFD01)CR (rFD010003)CR …For details on statuses, see 8.2 “Monitoring from

the computer.” (Stop status, FL output status, trip status (r command))

Computer → Inverter Inverter

2F 52 FD 01 7F 2F 72 FD 01 00 03 A2

→ Computer

- To check the trip code (when the inverter is tripped because of )

…For details on trip codes, see “Trip code monitor” in 8.2, “Monitoring

from the computer.” (18H = 24d “” trip status)

Computer → Inverter Inverter

(RFC90)CR (rFC900018)CR

Computer → Inverter Inverter

2F 52 FC 90 0D 2F 72 FC 90 00 18 45

→ Computer

Page 27

4.6. Examples of RS232C communication programs

Ex. 1: BASIC program for monitoring the operation frequency continuously (RS232C, ASCII mode)

(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)

◊ Monitoring the operation frequency continuously

1) Examples of programs 10 OPEN "COM1:9600,E,8,1" AS #1 --- 9600 baud, even parity, 8-bit length, 1 stop bit 20 A$=”FE00” --- Specifies the communication number for

monitoring the operation frequency.

30 PRINT #1,"("+”R”+A$+")" --- Transmits data to the inverter.

Note: The carriage return code is added

automatically. 40 INPUT#1,B$ --- Receives data returned from the inverter. 50 AAA$=“&H”+MID$(B$,7,4) --- Extracts only data items from the data re-

turned. 60 F$=LEFT$(STR$(VAL(AAA$)/100),6) --- Converts data into decimal form. 70 PRINT " Operation frequency =";F$+“Hz” --- Displays the operation frequency. 80 GOTO 20 --- Repeats.

E6581222

2) Examples of program execution results (stop command issued during 80 Hz operation) Operation frequency = 80 Hz ... Operation frequency = 79.95Hz : : Operation frequency = 0Hz

Page 28

E6581222

Ex. 2: BASIC program for executing an input command with checksum (RS232C, ASCII mode)

(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)

◊ Checking if the maximum frequency setting has been changed correctly

1) Examples of programs 10 OPEN "COM1:9600,E,8,1" AS #1 --- 9600 baud, even parity, 8-bit length, 1 stop bit 20 INPUT"Send Data=";A$ --- Reads in data to be sent to the inverter. 30 S$="("+A$+"&" --- Adds “(“ and “&” to the read data in. 40 S=0 50 L=LEN(S$) 60 FOR I=1 TO L Calculates the number of bits (checksum). 70 S=S+ASC(MID$(S$,I,1)) 80 NEXT I 90 CHS$=RIGHT$(HEX$(S),2) 100 PRINT #1,"("+A$+"&"+CHS$+")" --- Sends the data including the checksum result

to the inverter. 110 INPUT #1,B$ --- Receives data returned from the inverter. 120 PRINT "Receive data= ";B$ --- Displays the data received. 130 GOTO 20 --- Repeats.

2) Examples of program execution results Send Data=? R0011 --- Reads the maximum frequency (0011). Receive Data= (R00111F40&3D) --- 1F40 (Maximum frequency: 80 Hz) Send Data=? W00111770 --- Changes the maximum frequency to 60 Hz

(1770). Receive Data= (W00111770&36) Send Data=? R0011 --- Reads the maximum frequency (0011). Receive Data= (R00111770&31) --- 1770 (Maximum frequency: 60 Hz)

Page 29

Ex. 3 BASIC program for communication tests (RS232C, ASCII mode)

(Toshiba version of Advanced 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.

110 INPUT "Parity=even(E)/odd(O)";PARITY$

---- Selects parity. 120 OPEN "COM1:"+SPEED$+","+PARITY$+",8,1"AS #1 130 INPUT "Send data";B$ ---- Enters a command. 140 PRINT #1,B$ 150 C$="" 160 T=TIMER 170 COUNT=(TIMER-T) 180 IF COUNT >3 THEN 270 190 IF COUNT <0 THEN T=TIMER ---- Prevents an increase in the number of digits. 200 IF LOC(1)= 0 THEN A$="":GOTO 220 210 A$=INPUT$(1,#1) 220 IF A$ <>CHR$(13) THEN 240 ---- Carriage return 230 GOTO 290 (CR) to finish reading in. 240 IF A$="" THEN 160 250 C$=C$+A$ 260 GOTO 160 270 COLOR @0,7:PRINT "!!! There is no data to return. !!! ";:COLOR @7,0:PRINT 280 GOTO 130 ---- Repeats. 290 PRINT A$; 300 C$=C$+A$ 310 PRINT "Return data=";c$; 320 GOTO 130 ---- Repeats.

E6581222

2) Examples of program execution results (In this example, the inverter number is 00.) Baud rate=9600/4800/2400? 9600 ---- Selects 9600 baud. Parity=even(E)/odd(O)? E ---- Select E (even parity). Send data? (00R0011) ---- Carries out test communications. Return data= (00R00111770) Send data? () ---- Error !!! There is no data to return. !!! ---- No data is returned. Send data? (R0011) Return data= (R00111770) Send data? : :

Page 30

E6581222

Ex. 4 A VisualBaisc program for the ASCII mode communication (VisualBaisc is the registered trademark of the U.S. microsoft company.)

◊ Accessing a parameter

1) Sample program executive example (Monitor of the output frequency (FD00))

Transmission and reception of the optional data like in the following example can be done by doing "the arrangement of the form control" of the explanation and "the description of the code" with mentioning later.

Reply data from the inverte are 1770H (6000d) with this example.

s for the unit of the output frequency (FD00),1= 0.01Hz, the Inverter is being operated in 60.00Hz.

2)Arrangement of the control on the form Two TextBox, two Labels , three CommandButton and one MsComm are arranged on the form as follows.

Page 31

3)The description of the code

Private Sub Form_Load() Form1.Show

'********************************************************************** ' Setting the labels (Initialization) '**********************************************************************

Label1.Caption = "Data for transmission" Label2.Caption = "Received data" Command1.Caption = "Transmit" Command2.Caption = "Clear" Command3.Caption = "Exit"

'********************************************************************** ' Setup of communication (Initialization) '**********************************************************************

MSComm1.RThreshold = 0 MSComm1.InputLen = 1 MSComm1.CommPort = 1 MSComm1.InBufferCount = 0 MSComm1.OutBufferCount = 0 Form1.MSComm1.Settings = "9600,E,8,1" Form1.MSComm1.InputMode = comInputModeText

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'********************************************************************** ' A serial port is opened. (Initialization) '**********************************************************************

If False = MSComm1.PortOpen Then MSComm1.PortOpen = True End If

'********************************************************************** ' Data are received. '**********************************************************************

Do dummy = DoEvents() If MSComm1.InBufferCount Then Text1.Text = Text1.Text & MSComm1.Input End If Loop End Sub

'********************************************************************** ' The contents of the text box are transmitted. '**********************************************************************

Private Sub Command1_Click() MSComm1.Output = Text2.Text & Chr(13) End Sub

'********************************************************************** 'The contents of the text box are removed. '**********************************************************************

Private Sub Command2_Click() Text2.Text = "" Text1.Text = "" End Sub

'********************************************************************** 'A serial port is closed, end '**********************************************************************

Private Sub Command3_Click() If True = MSComm1.PortOpen Then MSComm1.PortOpen = False End If End End Sub

Page 32

5. MODBUS-RTU protocol

The MODBUS-RTU protocol of VF-S11 supports only part of the MODBUS-RTU protocol. Only two commands are supported, “03: Multiple data read (limited only to two bytes)” and “06: Word writes.” All data will be binary codes.

■ Parameter Setting

• Protocol Selection () Select “MODBUS－RTU protocol ( = ) in the communication selection parameters. “TOSHIBA Inverter Protocol” (=) is set for communication protocol selection in initial shipment setting. (See “3. Communication protocol.”) * Caution when selecting MODBUS-RTU protocol The extension panel (RKP001Z) and parameter writer (PWU001Z) , these options cannot be used. Note that Parameter Numbers. , , ,  and  to  do not function.

• Inverter Number ()

Inverter numbers. 0 to 247 can be specified in MODBUS-RTU. “0” is allocated to broadcast communication (no return). Set between 1 and 247.

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 : Communication baud rate  : Parity  : Communication error trip time

■ Timing of Message from Host

MODBUS-RTU sends and receives binary data without a frame synchronization header character and defines the frame synchronizing system to recognize the start of a frame by no-data time. MODBUS-RTU initializes frame information and decides the data that is first received subsequently as the first byte of a frame if data is not communicated within a time for 3.5 bytes, including the start and stop bits, at the transmission speed of the on-going communication while standing by for data reception. If a frame is being received before no-data time for 3.5 bytes, this frame will be aborted. Be sure to provide more than 3.5 bytes for data send interval.

Send data so that the time between characters will not be spaced for more than 1.5 bytes. Other- wise, MODBUS-RTU will sometimes recognize it as a start of data.

In the case of data to other stations, messages from the host and responses from other stations are also received. A wait time for 3.5 bytes is needed before starting transmission after own station completes reception when sending a response to recognize a frame start at this time.

Page 33

■ Data Exchange with Inverters

The inverters are always ready to receive messages and perform slave operation in response to computer requests. A transmission error will result if the transmission format does not match. The inverters will not respond if a framing error, parity error, CRC error or an inverter number mismatch occurs.

If no response is received, the computer side recognizes that a communication error has occurred. Transmit data again.

(1) In case spacing for more than 3.5 bytes are provided before characters, all data immediately

preceding it will be aborted. Data will sometimes be aborted if spacing for 1.5 bytes or more is provided between characters.

(2) Communications will be effective only when inverter numbers match or the communication mode

is broadcast communications. No response will be made if inverter numbers do not match.

(3) Message reception will end if spacing for more than 3.5 bytes are provided at the end of charac-

ters.

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■ Caution:

(4) If no communications take place within the time specified using the timer function, the computer

(5) On executing the command received, the inverter returns data to the computer. For the response

time, see Appendix 2, “Response time.”

Page 34

5.1. MODBUS-RTU transmission format

MODBUS-RTU sends and receives binary data without a frame-synchronizing start code and defines the blank time to recognize the start of a frame. MODBUS-RTU decides the data that is first received subsequently as the first byte of a frame after a blank time for 3.5 bytes at the on-going communication speed.

5.1.1. Read command (03)

■ Computer → VF-S11 *The text size is 8 bytes fixed.

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Commu-

(3.5bytes

Blank)

1) Inverter No.. (1 byte) : Specify an inverter number between 0 and 247 (00H to F7H).

2) Command (1 byte) : Set the read command (03H fixed).

3) Communication No.. (2 bytes) : Set in the order of high to low numbers.

4) Number of data groups (2 bytes) : Set the number of data words 0001 (fixed) in the order of high to low numbers.

5) CRC (2 bytes) : Set generation results of CRC in the order of low to high numbers.. For the

■ VF-S11 → Computer (Normal return) *The text size is 7 bytes fixed.

(3.5bytes

Blank)

1) Command (1 byte) : Read command (03H fixed) will be returned.

2) Number of data : A number of data bytes (02H fixed) will be returned. The number of data groups for

3) Read data (2 bytes) : Returned in the order of read data (high) and (low).

Inverter

No.

Inverter

No.

Command

03 00 01

Command

03 02

transmission to the inverters is 2 bytes and 01H fixed. Note that the number of data returned by the inverters is 1 byte and 02H fixed.

nication

No.

(high)

Command processing will be executed only broadcast communication “0” and with those inverters that match set inverter numbers. Data will not be returned if “0” (broadcast communication) and inverter numbers do not match.

method to generate CRC, see “5.2 CRC Generation.” Note that the setting sequence is reversal to that of others.

Number of

Data

Commu-

nication

No.

(low)

Read data

(high)

Number

of Data Groups

(high)

Read data

(low)

Number

of Data Groups

(low)

CRC (low)

CRC

(high)

CRC

(high)

(3.5bytes

Blank)

■ VF-S11 → Computer (Abnormal return) *The text size is 5 bytes fixed.

(3.5bytes

Blank)

1) Command (1 byte) : 83H fixed (Read command error) (Command + 80H)

2) Error code (1 byte) : See “4.3 Transmission errors.”

■ Example: Reading output frequency (During 60Hz operation) (Computer → inverter) 01 03 FD 00 00 01 B5 A6 (Inverter → computer) 01 03 02 17 70 B6 50

■ Example: Data specification error (Computer → inverter) 01 03 FD 00 00 02 F5 A7 (Inverter → computer) 01 83 03 01 31

Inverter No. Command Error Code

CRC (low)

CRC

(high)

Page 35

5.1.2. Write command (06)

■ Computer → VF-S11 *The text size is 8 bytes fixed.

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(3.5bytes

Blank)

1) Inverter No. (1 byte) : Specify an inverter number between 0 and 247 (00H to F7H).

2) Command (1 byte) : Set the write command (06H fixed).

3) Communication No. (2 bytes) : Set in the order of high to low numbers.

4) Write data (2 bytes) : Set in the order of high to low write data.

5) CRC (2 bytes) : Set generation results of CRC in the order of low to high numbers. For the method to

■ VF-S11 → Computer (Normal return) *The text size is 8 bytes fixed.

(3.5bytes

Blank)

1) Command (1 byte) : Write command (06H fixed) will be returned.

2) Write data (2 bytes) : Returned in the order of write data (high) and (low).

Inverter

No.

Inverter

No.

Command

Communi-

cation No.

(high)

Command processing will be executed only broadcast communication “0” and with

those inverters that match set inverter numbers. Data will not be returned if “0”

(broadcast communication) and inverter numbers do not match.

generate CRC, see “5.2 CRC Generation.” Note that the setting sequence is reversal to that of others.

Communi-

cation No.

(high)

Communication No.

(low)

Communi-

cation No.

(low)

Write Data

(high)

Write Data

(high)

Write Data

(low)

Write Data

(low)

CRC (low)

CRC

(high)

CRC

(high)

(3.5bytes

Blank)

(3.5bytes

Blank)

■ VF-S11 → Computer (Abnormal return) *The text size is 5 bytes fixed.

(3.5bytes

Blank)

1) Command (1 byte) : 86H fixed (Read command error) (Command + 80H)

2) Error code (1 byte) : See “4.3 Transmission errors.”

■ Example: Writing in frequency command value (FA01) (60Hz) (Computer → inverter) 01 06 FA 01 17 70 E6 C6

(Inverter → computer) 01 06 FA 01 17 70 E6 C6

■ Example: Communication number error (Computer → inverter) 01 06 FF FF 00 00 89 EE

(Inverter → computer) 01 86 02 C3 A1

Inverter No. Command Error Code

CRC (low)

CRC

(high)

Note

▼ The EEPROM life is 10,000 operations.

Do not write in the same parameter that has an EEPROM more than 10,000 times. The communication commands (FA00, FA20, FA26), communication frequency command (FA01), terminal output data (FA50) and analog output data (FA50) are stored in the RAMs only and no restrictions are placed on them.

Page 36

5.2. CRC Generation

“CRC” is a system to check errors in communication frames during data transmission. CRC is composed of two bytes and has hexadecimal-bit binary values. CRC values are generated by the transmission side that adds CRC to messages. The receiving side regenerates CRC of received messages and compares generation results of CRC regeneration with CRC values actually received. If values do not match, data will be aborted.

■ Flow

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CRC generation

( )

CRC initial data: FFFF

Byte counter n = 0

Byte counter n < Length

Yes

CRC = (CRC XOR nth send byte (0 expanded to word (higher 8 bits))

Bit counter = 0

Bit counter < 8

Yes

C = (Remainder of CRC ÷ 2)

ＣＲＣ>>１

Is remainder (C) other than 0?

Yes

(CRC XOR generating polyno-

mial (A001))

CRC＝

Nｏ

procedure for generating a CRC is:

1, Load a 16–bit register with FFFF hex (all 1’s). Call this

the CRC register.

2. Exclusive OR the first 8–bit byte of the message with the low–order byte of the 16–bit CRC register, putting the result in the CRC register.

3. Shift the CRC register one bit to the right (toward the LSB), zero–filling the MSB. Extract and examine the LSB.

4. (If the LSB was 0): Repeat Step 3 (another shift). (If the LSB was 1): Exclusive OR the CRC register with the polynomial value A001 hex (1010 0000 0000 0001).

5. Repeat Steps 3 and 4 until 8 shifts have been performed. When this is done, a complete 8–bit byte will have been processed.

6. Repeat Steps 2 through 5 for the next 8–bit byte of the message. Continue doing this until all bytes have been processed.

7. The final contents of the CRC register is the CRC value.

Bit counter +1

Byte counter +1

End (Return CRC)

5.3. Error codes

In case of the following errors, the return commands from the inverters are added 80h to the commands received by the inverters. The following error codes are used.

Error Code Description

8. When the CRC is placed into the message, its upper and

lower bytes must be swapped as described below.

01 Command error (Returned when a command other than 03 or 06 is received)

Communication number error (A communication number is not found when Command 03 or 06 is received)

03 Data range error (Data range error when Command 03 or 06 is received

Unable to execute (Command 06 is being received and data cannot be written)

(1) Writing in write-disable-during-operation parameter (2) Writing in parameter that is executing TYP

Page 37

6. Inter-drive communication

Inter-drive communication function enables manipulation of multiple inverters without using the host computer such as the PLC and the PC. This function is utilized for "speed proportional control". The command is instructed by the operation from the master inverter’s panel or analog input, etc. With the Inter-drive communication function, the master inverter continues to transmit the data selected by the parameters to all the slave inverters on the same network. The master inverter uses the S command for outputting instructions to the slave inverters, and the slave inverters do not return the data. (See chapter 4.2 "Command".) Network construction for a simple synchronized operation and speed-proportional operation can be created by this function.

The inverters on the slave side are always ready to receive messages during inter-drive communications and perform slave operation in response to requests made by the inverters on the master side or computer requests during inter-drive communications. The inverters on the master side are always ready to send messages during inter-drive communications and do not receive data.

To use the inter-drive communication function, select “TOSHIBA Inverter Protocol” (=) in the communication protocol selection parameters. “TOSHIBA Inverter Protocol” (=) is set for communication protocol selection in Shipment setting. (See “3. Communication protocol.”)

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Master (60Hz)

VF-S11

nalog input

<Notes>

Speed command can be transmitted but the run / stop signal is not issued. Slave station should have an individual

stop signal or the function to stop the action by the frequency reference. (Setting is necessary for : Opera

tion starting frequency, : Operation starting frequency hysteresis .)

Slave 1 (50Hz)

VF-S11 VF-S11 VF-S11

* A RS485 communication converter unit (RS4001Z,

RS4002Z or RS4003Z) will be needed to control multiple

inverters on the network.

Slave 2 (40Hz)

Slave 3 (30Hz)

For continuing the operation by the last received command value in the case of a communication breakdown,

provide a communication time-out interval () to trip the slave inverters. The master inverter does not trip

even though the communication breakdown happens. To trip the master inverter, provide an interlock mechanism

by installing an FL fault relay point or the like from the slave side.

Page 38

■ Setting of parameter

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●Selection of communication protocol () Shipment setting: 0 (TOSHIBA Inverter Protocol)

Protocol setting with all inverters (both master and slave inverters) engaged in inter-drive communications 0: Set the TOSHIBA Inverter Protocol. * Inter-drive communications are disabled when the MODBUS-RTU protocol is selected. * This parameter is validated after resetting the inverter or rebooting the power supply.

● Setting of master and slave inverters for communication between inverters (setting of master and

slave) () ... Shipment setting = 

Assign one master inverter in the network. Other inverters should be the slave inverters. *Specify only one inverter as the master. In case two or more inverters are designated for the master inverter in the same network, data will collide.

- Setting to the master inverter Set data desired for sending from the master side to the slave side. :Master inverter(transmission of frequency commands) : Master inverter (transmission of output frequency signals)

- Setting to the slave inverters Set the desired action on the slave side that will be needed when the master trips.

: Sets the frequency command value to 0Hz. (Output frequency is limited by low-limit frequency) : Normal operation is continued

(If an output frequency is set on the master side, the output frequency of the master side becomes 0Hz due to tripping and the frequency of commands to the slave side becomes 0Hz.)

: Makes an emergency stop (“E” trip).

(The method to stop follows the setting in “Emergency stop selection ()”

*This parameter is validated after resetting the inverter or rebooting the power supply.

• Communication waiting time () ... Shipment setting = 

- Setting to the master inverter

Set up more than 0.03 seconds as a transmitting interval on the master side to wait for the processing time on the slave side(= ).

● Speed setting mode selection () ... Shipment setting = : Built-in potentiometer Designate a target of speed command input for the inverter to the parameter .

- Setting to the master inverter

Designate a number except for “: serial communication ” ( ≠).

- Setting to the slave inverters

Designate “: serial communication ” ( =).

Page 39

■ 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 network.

• Parity () ... Shipment setting = : Even parity Parity of all inverters in the network (master and slave) should be same network.

• Communication error trip time() ... Shipment setting =  Operation is continued by the last received command value in the case of a communication breakdown. To stop the operation of inverter, provide a communication time-out interval (ex. =) to the slave inverters. The master inverter does not trip even though the communication breakdown happens. To trip the master inverter, provide an interlock mechanism by installing a FL fault relay point or the like from the slave side.

• Frequency point selection ()

Adjusted to the system.

See chapter “6.1 Speed proportional control” for details.

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■ Setting example of parameters

Parameters relating to the master side (example)

 Master (transmission of output frequency (%) (100% at FH))  Selection of communication protocol (Toshiba inverter protocol)  Communication baud rate

(ex. 19200bps)

 Parity (even parity)  Example: Panel  Example: Built-in potentiometer  Communication waiting time

(ex. 30msec)

Parameters relating to the slave side (example)

 Slave (0Hz command issued in case the master inverter

fails)

 Selection of communication protocol (Toshiba inverter protocol)

 Communication time-out (ex. 1 second)  Communication baud rate (same to the master side)  Parity (same to the master side)  Terminal block (ex. Driven by F, ST)

( Run and stop of operation is controlled with the frequency

reference value by setting the “run frequency”.)

< For speed control >

 Serial communication ? Adjusted to the system Point 1 setting (%)  ? Ditto Point 2 frequency (Hz)  ? Ditto Point 2 setting (%)  ? Ditto Point 2 frequency (Hz)

Page 40

6.1. Speed proportional control

Point2

Point1

Various inclinations can be set by frequency point setting. The frequency command value on the slave side during inter-drive communication can be expressed by the following formulas. If inter-drive communication is not selected (=), point conversion is not performed. Point conversion is performed only when the command “S” is received.

(Ex.) < unit > Frequency unit: 1=0.01(Hz), point setting unit: 1=0.01%

Maximum frequency ()

Master (Fc) 100.00Hz

(10000)

Slave 1 100.00Hz

(10000)

Slave 2 100.00Hz

(10000)

Point 1 setting ()

Point 1 frequency ()

Point 2 setting ()

−−−−

0.00% (0)

0.00Hz (0)

100.00% (10000)

Point 2 frequency ()

90.00Hz (9000)

80.00Hz (8000)

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Frequency (Fc)

50.00Hz (5000)

45.00Hz (4500)

40.00Hz (4000)

Sending data from the master:

Master send fc(%) = = = 5000 = 50%

Master side fc×10000

Master side FH

Slave frequency Command(Hz)=

1(F811) point - 2(F814) Point

By the point conversion process,

09000

Hzfc:1 Slave ==)−(×

=)( ＋

Hzfc:2 Slave ==)−(×

=)( ＋

−

010000

−

08000

−

010000

−

【Diagram of speed proportional control】

→<Inverter’s internal computation>

←

Point conversion

5000×10000

10000

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

x (Master command (%) - Point 1(F811)) + Point 1 frequency(F812)

Hz454500005000

Hz404000005000

(Note)fc=frequency reference, FH=Maximum frequency

(Hz)

data＝ sendMaster ×

Master command (%)

Point2Frequency(



)

Slave command (Hz)

Point1Frequency(

FC Master

01000

FHMaster





)



(

)

Master command (%)

F812F814

−

F811F813

−

（

Slave command (Hz)

)

(%) command Master((Hz) command Slave ×

（％)

2－F811）＋F81

Page 41

6.2. Transmission format for inter-drive communication

Data type is handled in hexadecimal notation and the transmission characters are treated with the binary (HEX) code. The transmission format is basically the same to the case of binary mode. S command is used and the slave inverters do not return the data.

■ Master inverter (VF-S11) to slave inverter (VF-S11) (Binary mode)

Omission

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“／”

(2FH)

1) INV-NO (1 byte) : Inverter number

2) CMD (1 byte) : Command

3) Communication number (2 bytes) :

4) DATA (2 bytes) : Data of frequency command value.

As for the S command, see section 4.2 “Commands”, and see chapter “6 Inter-drive communication function” for the communication of inverters.

INV-NO

1 byte

This is always excluded at the master inverter side at time of inter-drive communication, and

can be added when the user utilize this data for the purpose of proportional operation.

(When this code is added, only the inverter concerned will accept the data.)

53H(“S”) or 73(“s”) command ... command for inter-drive communication

When the master inverter is not tripping, this will be 53H(“S”).

When the master inverter is tripping, this will be 73H(“s”).

Communication number of frequency command (FA01).

(0000H to FFFFH (no range check))

CMD

1 byte

Checksum range

Communication number

2 bytes

DATA

2 bytes

SUM

1 byte

Not omissible

Page 42

7. Communications parameters

The settings of communication-related parameters can be changed from the operation panel and the external controller (computer). Note that there are two types of parameters: parameters whose settings take effect immediately after the setting and parameters whose settings do not take effect until the inverter is turned back on or reset.

Com-

munica-

tion

Number.

0800

0801

0802

0803

0805

0806

0811

0812

0813

0814

0829

0870

0871

0875

0876

0877

0878

0879

0880

Title Function Adjustment range Unit

0: 1200bps







































Communication baud rate

Parity

Inverter number 0-255 1 0 Real time Section 7.2

Communication error trip time Communication waiting time

Setting of master and slave inverters for communication between inverters (setting of master and slave)

Point 1 setting 0-100 1% 0 Real time

Point 1 frequency 0.0-500.0Hz 0.01Hz 0.0 Real time

Point 2 setting 0-100 1% 100 Real time

Point 2 frequency 0.0-500.0Hz 0.01Hz 60.0 Real time

Selection of communication protocol

Block write data 1

Block write data 2

Block read data 1

Block read data 2

Block read data 3

Block read data 4

Block read data 5

Free notes 0-65535 1 0 Real time Section 7.5

1: 2400bps 2: 4800bps 3: 9600bps 4: 19200bps 0: NON (No parity) 1: EVEN (Even parity) 2: ODD (Odd parity)

0: (disabled) 1-100

0.00-2.00s 0.01s 0.00 Real time Section 7.4

0: Slave inverter (0 Hz command issued

in case the master inverter fails)

1: Slave inverter (Operation continued in

case the master inverter fails)

2: Slave inverter (Emergency stop trip-

ping in case the master inverter fails)

3: Master inverter (transmission of fre-

quency commands)

4: Master inverter (transmission of output

frequency signals)

0: Toshiba inverter protocol 1: Modbus-RTU protocol

0: No selection 1: Command information 1 2: Command information 2 3: Frequency command 4: Output data on the terminal board 5: Analog output for communications 0: No selection 1: Status information 2: Output frequency 3: Output current 4: Output voltage 5: Alarm information 6: PID feedback value 7: Input terminal board monitor 8: Output terminal board monitor 9: VIA terminal board monitor 10: VIB terminal board monitor

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Default

setting

- 3 After reset. Section 7.1

- 1 After reset. Section 7.1

1s 0 Real time Section 7.3

- 0 After reset.

-0

Valid Reference

Chapter 6

Section 6.1

Chapter 3

After reset.

Section

4.1.3

After reset.

Page 43

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. Inverter numbers should not be duplicate inside the same network. Receiving data will be canceled if inverter numbers specified in individual communications and set by a parameter do not match. This parameter is validated from the communication after change

Data range: 0 to 255 (Initial value: 0) Parameters can be selected between 0 and 255. Note that the communication protocols limit inverter numbers as follows:

● TOSHIBA Inverter Protocol ASCII mode: 0 to 99

● TOSHIBA Inverter Protocol Binary mode: 0 to 63

● MODBUS Protocol: 0 to 247

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7.3. Timer function()

This function detects any normal data that is not detected even once within an arbitrarily predetermined time. The timer function is used to detect breaks in cables during communications and to trip an inverter (

) if the inverter has received no data within the time specified using this function. If the in-

verter number does not match or if a format error occurs, preventing the inverter from returning data to the computer, this function will assume that the inverter has not received any data.

■ How to set the timer

The communication error trip time parameter () is set to 0 (timer off) by default. * Timer adjustment range

About 1 sec. (01H) to about 100 sec. (64H) / Timer off (0H)

■ How to start the timer If the timer is set from the operation panel, it will start automatically the instant when communication

is established for the first time after the setting. If the timer is set from the computer, it will start automatically the instant when communication is established after the setting. If the timer setting is stored in the EEPROM, the timer will start when communication is established for the first time after the power has been turned on. Note that, if the inverter number does not match or if a format error occurs, preventing the inverter from returning data, the timer function will assume that no communication has taken place and will not start.

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■ How to disable the timer To disable the timer, set its parameter to 0.

Ex.: To disable the timer function from the computer (To store the timer setting in the EEPROM)

■ Timer

Computer link

Computer → Inverter Inverter (W08030)CR (W08030000)CR ... Sets the timer parameter to 0 to disable it.

Time-out period

INV → PC

→ Computer

PC → INVPC → INV

The timer measures the time elapsed before the inverter acknowledges receipt of data after it acknowledged receipt of the previous data.

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7.4. Setting function of communication waiting time ()

Use this function for the following case: When 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 RS485/RS232C converter is used, changeover of sending and receiving data takes much time in the converter process.

The case of " Inter-drive communication ", set up more than 0.03 seconds as a transmitting interval on the master side to wait for the processing time on the slave side(

* This function, however, does not operate in case the MODBUS-RTU protocol is selected in com-

munication protocol selection. (

Functional specification: A time for sending data is prolonged longer than the preset time, until the inverter returns the data to the PC, after it finishes receiving the data (in case of an inter-drive communication, until the inverter returns the next data to the PC, after it has sent the data.) In case the inverter's processing capacity requires longer setting time, the value more than this time will be the set value. (The parameter makes the inverter wait for more than the set time.)

=)

= ).

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Computer link

Inter-drive communication

Setting range: If the set value is maximum capacity of the inverter. To obtain a quick response for sending data, set value

PC→INV

Master INV to Slave INV

 to seconds (10ms to 2000ms)

, this function becomes invalid and the interval time for sending data is set to the

Time elapses more than transmission waiting time.

Time elapses more than the transmission waiting time.

7.5. Free notes()

INV→PC

Master INV to Slave INV

.

Time from the confirmation of the

data reception (transmission, in the

case of inter-drive communication)

to the transmission of data, is

adjusted.

If the inverter's processing time

requires longer time than the

transmission waiting time, the time

is prolonged.

This parameter allows you to write any data, e.g., the serial number of each inverter or parameter information, which does not affect the operation of the inverter.

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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 monitored.

8.1. Communication commands (commands from the computer)

■ Communication command (Communication number: FA00) Commands can be executed on inverter frequencies and operation stop through communications.

The VF-S11 series can enable command and frequency settings through communications irrespective of settings of the command mode ( Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed” is set by input terminal function selection ( tion and to a frequency command is feasible through a contact on the terminal board. Once the communication command (FA00) is set to enable communication command priority and frequency priority, both priorities will be enabled unless OFF is set, power is turned off or is reset, or standard shipment setting ( terminal output hold are always enabled even though communication command priority is not set.

Table 1 Data construction of communication commands (communication number: FA00)

bit Specifications 0 1 S7 S9/nC1/S11 Remarks

0 Preset speed operation

frequencies 1

1 Preset speed operation

frequencies 2

2 Preset speed operation

frequencies 3

3 Preset speed operation

frequencies 4

4 Motor selection (1 or 2)

(THR 2 selection)

5 PI control Normal operation PI OFF - 9 6 Acceleration/deceleration

pattern selection (1 or 2)

(AD2 selection) 7 DC braking OFF Forced DC braking 8 Jog run OFF Jog run 9 Forward/reverse run

selection

10 Run/stop Stop Run 11 Coast stop command Standby Coast stop 12 Emergency stop OFF Emergency stop 13 Fault reset OFF Reset

14 Frequency priority selec-

tion

15 Command priority selec-

tion

Note: For the reset command, no data will be returned. Ex.: Forward run: (PFA008400) CR

Preset speed operation is disabled or preset speed operation frequencies (1-

15) are set by specifying bits for preset speed operation frequencies 1-4.

(0000: Preset speed operation OFF,

001-1111: Setting of preset speed operation frequencies (1-15))

Motor 1

(THR 1)

Accelera-

tion/deceleration

pattern 1 (AD1)

Forward run Reverse run

OFF Enabled

1 is specified for bit 15 (communication command: enabled) and bit 10 (operation command).

FA00:

BIT15 BIT0

1000010000000000

 to ), a change to a command other than communica-

) is selected. Emergency stop, RY terminal output hold and OUT

tion/deceleration

pattern 2 (AD2)

) and frequency mode (). However, if “48:

Motor2

(THR2)

Accelera-

- 9 THR1 : PT=set value, vL, vb, tHr

9 AD1 : ACC, DEC,

Preset speed operation can be disabled or a preset speed operation frequencies (1-15) can be specified by combining 4 bits variously.

THR2 : PT=0, F170, F172, F173

AD2 : F500, F501

9 9 9

9 9 9 “E” trip 9 No data is returned from the

inverter.

9 Enabled regardless of the set-

ting of



9 Enabled regardless of the set-

ting of



004

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Ex.: Reverse run: (PFA008600) CR, (PFA00C600) CR

8600H : To disable frequency instructions from the computer C600H : To enable also frequency instructions from the computer

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 Communication command2 (Communication Number : FA20)

This command is enabled only when the communication command is enabled. Set Bit 15 of Communication Command 1 (communication Number: FA00) to “1” (enable). When enabling the communication command by Communication Command 1, commands by communications can be given the priority irrespective of the setting of the command mode selection parameter ( ever, if “48: Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed” is set by input terminal function selection ( will be given the priority.

Once enabled, this setting will be enabled till disable is set (0 setting), power is turned off or is reset, or standard shipment setting (

Table 2 Data construction of serial communication command 2 (FA20)

Bit Function 0 1 Remarks

0 (Reserved)

electric power quantity

reset 2 (Reserved) 3 (Reserved) 4 (Reserved) 5 (Reserved) 6 (Reserved) 7 (Reserved)

Acceleration/deceleration 8

pattern selection 1

Acceleration/deceleration 9

pattern selection 2

10 (Reserved) 11 (Reserved)

Over-current stall level

change

13 (Reserved) 14 (Reserved) 15 (Reserved)

Note: The acceleration/deceleration change command ORs with Bit 6 of Communication number

FA00. Set Bit 6 of FA00 to “0” and use FA20 when changing acceleration/deceleration in three types. Acceleration/deceleration 3 will be set when both Bit 8 of Communication number FA20 (or Bit 6 of Communication number FA00) and Bit 9 of Communication number FA20 are set.

) is selected.

 to ), the enabled command and frequency

−−

ＯＦＦ

−−

00: Acceleration/deceleration 1 01: Acceleration/deceleration 2

10: Acceleration/deceleration 3,

11: Disabled (Accelera-

tion/deceleration 3)

−−

OC stall 1 OC stall 2

−−

Reset

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). How-

electric power quantity

(FE76, FE77) reset

Select Acceleration/ deceleration 1 - 3 by combination of two bits

AD1: ACC, DEC AD2: F500, F501 AD3: F510, F511

OC1: F601 OC2: F185

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 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.

Table 3 Data construction of Serial Communication Command 3 (FA26)

Bit Function 0 1 Remarks

Once it is turned

0 RY terminal output hold OFF

1 OUT terminal output hold OFF

2 (Reserved) −− 3 (Reserved) −− 4 (Reserved) −− 5 (Reserved) −− 6 (Reserved) −− 7 (Reserved) −− 8 (Reserved) −−

9 (Reserved) −− 10 (Reserved) −− 11 (Reserved) −− 12 (Reserved) −− 13 (Reserved) −− 14 (Reserved) −− 15 (Reserved) −−

on, a RY terminal holds that condition. Once it is turned on, an OUT terminal holds that condition.

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Always enabled even if communication command is not enabled

 Frequency setting from the computer (communication number: FA01)

Setting range: 0 to Maximum frequency ()

This frequency command is enabled only when the frequency command by communication is en-

abled by setting “serial communication (“3” for Communication Number FA04) by the speed command selection parameter ( FA00 to “1” (enable)) by the communication command. In this case, frequency commands by communication will be enabled independent of frequencies are given the priority if “48: Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed” is set by input terminal function selection (

Once enabled, this frequency setting will be enabled till disable is set (0 setting), power is turned off

or is reset, or standard shipment setting (

Set a frequency by communication hexadecimal in Communication Number FA01. (1 = 0.01Hz (unit))

Example: Operation frequency 80Hz command (PFA011F40) CR 80Hz = 80 ÷ 0.01 = 8000 = 1F40H

) or setting command priority (Bit 14 of Communication Number

 setting. However, enabled commands and

 to ).

) is selected.

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8.2. Monitoring from the computer

This section explains how to monitor the operating status of the 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: 0.01 Hz)

Operation frequency (current frequency): Communication Number FD00 (Minimum unit: 0.01 Hz)

Ex.: Monitoring of operation frequency (during 50 Hz operation) ... (1388H = 5000d, 5000 x 0.1 = 50

Hz)

Computer → Inverter Inverter (RFD00)

(RFD001388)

→ Computer

 Inverter operating status (FE01, FD01)

Operating status (status immediately before the occurrence of a trip):

Communication Number FE01

Operating status (current status): Communication Number FD01

Table 2 Data construction of inverter operating status (FE00/FD00) (*: FD01 supports the VF-S11 and later models.)

Bit Specifications 0 1 S7 S9 S11/nC1 Remarks

0 Failure FL No output Output in prog-

ress

1 Failure Not tripped Tripped -- 9 Trip statuses include 

2 Alarm No alarm Alarm issued -- 9 3 Reserved - - -- - 4 Motor section (1 or 2)

(THR 2 selection)

5 PI control OFF PI control

6 Acceleration/deceleration

pattern selection (1 or 2)

7 DC braking OFF Forced DC

8 Jog run OFF Jog run 9 Forward/reverse run Forward run Reverse run

10 Run/stop Stop Run 11 Coast stop (ST=OFF) ST=ON ST=OFF - 12 Emergency stop Not emergency

13 Standby ST=ON Start-up process Standby -- 9 Standby: Initialization completed,

14 Standby Start-up process Standby -- 9 Standby: Initialization completed,

15 Reserved - - -- -

Motor 1 (THR 1) Motor 2 (THR 2) -

PI control

permitted

Acceleration/

deceleration

pattern 1 (AD 1)

stop status

prohibited

Acceleration/

deceleration

pattern 2 (AD 2)

braking

Emergency stop

status

-- 9

9 THR1: PT=set value, vL, vb, Thr

9 AD1 :ACC, DEC,

9 9 9 9

and trip retention status.

THR2:PT=0, F170, F172, F173

AD2 :F500, F501

not failure stop status, not alarm stop status (MOFF, LL forced stop or forced stop due to a momentary power failure), ST=ON, and RUN=ON

not failure stop status, and not alarm stop status (MOFF, LL forced stop or forced stop due to a momentary power failure)

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 Inverter operating status3 (FE42, FD42)

Operating status 3(status immediately before the occurrence of a trip):

Communication Number FE42

Operating status 3(current status): Communication Number FD42

Bit Function 0 1 Remarks

0 (Reserved)

1 Electric Power Counting

(FE76,FE77) status

2 (Reserved)

3 (Reserved)

4 (Reserved)

5 (Reserved)

6 (Reserved)

7 (Reserved)

8 Acceleration/deceleration

pattern selection1

9 Acceleration/deceleration

pattern selection2

10 (Reserved)

11 (Reserved)

12 Over-current stall level change OC stall 1 OC stall 2 OC1:F601

13 (Reserved)

14 (Reserved)

15 (Reserved)

00:Acceleration/deceleration 1

01:Acceleration/deceleration 2

10:Acceleration/deceleration 3

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−−

Counting Resetting

−−

Acceleration/ decelera-

tion 1 - 3 can be speci-

fied by combination of

two bits

−−

OC2:F185

−−

 Inverter operating status4 (FE49, FD49)

Operating status 4(status immediately before the occurrence of a trip):

Communication Number FE49

Operating status 4(current status): Communication Number FD49

Bit Function 0 1 Remarks

0 RY terminal output hold OFF Holding

1 OUT terminal output hold OFF Holding

2 to 15 (Reserved)

−−

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 Inverter operating command mode status (FE45)

The monitor of the command mode that the present condition is enabled

Data Enabled command

0 Terminal board

1 Operation panel

2 Serial communication

 Inverter operating frequency mode status (FE46)

The monitor of the frequency command mode that the present condition is enabled Note that Preset speed operation frequencies is given the priority independent of the frequency mode, in which case this monitor will be disabled, in case Preset speed operation frequencies is selected.

Data Enabled frequency

0 Potentiometer at Operation panel

1VIA

2VIB

3 Operation panel

4 Serial communications

5 TB up down frequency

6 VIA + VIB

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 Alarm information monitor (FC91)

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Bit Specifications 0 1

0 Over-current alarm Normal Alarming  flickering

1 Inverter overload alarm Normal Alarming

2 Motor overload alarm Normal Alarming

3 Overheat alarm Normal Alarming

4 Overvoltage alarm Normal Alarming

5 Main circuit undervoltage alarm Normal Alarming -

6 (Reserved) - - -

7 Low current alarm Normal Alarming -

8 Over-torque alarm Normal Alarming -

Braking resistor overload alarm

Cumulative operation hours

alarm

11 (Reserved) - - -

12 (Reserved) - - -

13 Main-circuit voltage error alarm Normal Alarming “ flickering

At the time of the instant black-

out, Forced deceleration/stop An automatic stop during the

lower limit frequency continuance

Normal Alarming -

Decelerating, stopping Decelerating, stopping

(Code displayed on the panel)

Related: F256 setting

Related: F302 setting

Remarks

 flickering

 flickering

 flickering

 Cumulative operation time alarm monitor (FE79)

Bit Specifications 0 1 Remarks

0 Fan life alarm Normal Alarm issued -

1 Circuit board life alarm Normal Alarm issued -

2 Main-circuit capacitor life alarm Normal Alarm issued -

3 User set alarm Normal Alarm issued -

4-15 (Reserved) - - -

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 Trip code monitor (current status: FC90: historic records: FE10 to FE13)

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Data

Code

nerr oc1 oc2 oc3 ocl oca ephi epho op1 op2 op3 ol1 ol2 oh e eep1 eep2 eep3 err2 err3 err4 err5 err7

err8 uc up1 ot ef2 oc1p oc2p oc3p etyp oh2 sout e-18 e-19 e-20 e-21 etn1

(hexadeci-

mal number)

Data

(decimal

number) 0 0 No error 1 1 Over-current during acceleration 2 2 Over-current during deceleration 3 3 Over-current during constant speed operation 4 4 Over-current in load at startup 5 5 Short circuit in arm 8 8 Input phase failure 9 9 Output phase failure

A 10 Overvoltage during acceleration B 11 Overvoltage during deceleration C 12 Overvoltage during constant speed operation D 13 Over-LOAD in inverter

E 14 Over-LOAD in motor 10 16 Overheat trip 11 17 Emergency stop 12 18 EEPROM fault 1 (writing error) 13 19 EEPROM fault 2 (reading error) 14 20 EEPROM fault 3 (internal fault) 15 21 RAM fault 16 22 ROM fault 17 23 CPU fault 18 24 Communication error trip

1A 26 Current detector fault

1B 27 Optional circuit board type error 1D 29 Small-current trip 1E 30 Trip due to undervoltage in main circuit

20 32 Over-torque trip 22 34 Ground fault trip (hardware detection) 25 37 Overcurrent flowing in element during acceleration 26 38 Overcurrent flowing in element during deceleration 27 39 Overcurrent flowing in element during operation 29 41 Inverter type error

2E 46 External thermal input 2F 47 PM motor step-out

32 50 33 51 CPU fault 34 52 Excess torque boost 35 53 CPU fault 54 84 Auto-tuning error

VIA cable break in an analog signal cable

Description

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 Inverter model (capacity) code (FB05)

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Model

VFS11-2002PM-AN 1 1 VFS11-2004PM-AN 2 2 VFS11-2007PM-AN 4 4 VFS11-2015PM-AN 6 6 VFS11-2022PM-AN 7 7 VFS11-2037PM-AN 9 9 VFS11-2055PM-AN A 10 VFS11-2075PM-AN B 11 VFS11S-2002PL-AN 19 25 VFS11S-2004PL-AN 1A 26 VFS11S-2007PL-AN 1C 28 VFS11S-2015PL-AN 1E 30 VFS11S-2022PL-AN 1F 31 VFS11-4004PL-AN 22 34 VFS11-4007PL-AN 24 36 VFS11-4015PL-AN 26 38 VFS11-4022PL-AN 27 39 VFS11-4037PL-AN 29 41 VFS11-4055PL-AN 2A 42 VFS11-4075PL-AN 2B 43 VFS11-4110PL-AN 2C 44 VFS11-4150PL-AN 2D 45 VFS11-2110PM-AN 6C 108 VFS11-2150PM-AN 6D 109

(hexadecimal number)

Data

(decimal number)

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8.3. Control of input/output signals from communication

The input terminals, output terminals, analog input and output signals of the inverters can be controlled by communications.

 Terminal Output Data (FA50)

The output terminals on the inverters can be controlled directly by communications.

Before controlling them, select Function Number 38 to 41 in Output Terminal Function Selection (

 - , ,). Set data (0 or 1) can be output to the output terminals by

setting data of Bit 0 and Bit 1 of terminal output data (FA50) by communications.

Data construction of Terminal Output Data (FA50)

Bit Output Terminal Function 0 1

0 Specified data output 1

(Output terminal selection Number : 38, 39)

1 Specified data output 2

(Output Terminal Selection Number : 40, 41)

2 to 15

−−−

OFF ON

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Example : Controlling only Terminal OUT1 by communication

Set “38” (specified data output 1 [positive logic]) in Output Terminal Selection 1 ( advance and set “0001H” in FA50 to turn Terminal OUT1 on.

FA50:

BIT15 BIT0

0000000000000001

 Analog Output Data (FA51)

The analog terminals on the inverters, such as Terminal FM can be controlled directly by communications. Select “18” (communication analog output) in Analog Terminal Connection Selection Parameters (example: FM terminal connection meter selection [

Data set in Analog Output Data (FA51) can be output from the selected analog terminal. The data adjustment range is 0 to 1023 (10bit resolution) . Refer to “Meter Setting and adjustment” in the instruction manual for inverters for the complete information.

) in

]) before controlling them.

100

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 Input terminal board status (FD06, FE06)

Input terminal board status (status immediately before the occurrence of a trip):

Input terminal board status (current status): Communication Number FD06

In case “0: No assignment function” is selected in function selection, inverter operations will not be affected even when terminals are turned on and off. Therefore, the terminals can be used as input terminals for customer’s own use.

The input terminal function selection parameter is used to select a function for each input terminal. When monitoring the operating status, check what function is assigned to each internal terminal.

Data construction of input terminal board (FE06)

Bit Terminal name (extended) Function (parameter title) 0 1

0 F Input terminal selection 1 (f111)OFFON 1 R Input terminal selection 2 (f112)OFFON 2 RES Input terminal selection 3 (f113)OFFON 3 S1 Input terminal selection 4 (f114)OFFON 4 S2 Input terminal selection 5 (f115)OFFON 5 S3 Input terminal selection 6 (f116)OFFON 6 VIB *1 Input terminal selection 7 (f117)OFFON 7 VIA *1 Input terminal selection 8 (f118)OFFON

8 ~ 15 - - - -

1: It is valid only when it is selected as contact input by .

It is effective only when it is chosen with F109 for input of a contact point. Ex.: FE06 data when the F and S1 terminals are ON: 0009H

BIT15 BIT0

FE06:

0000000000001001

Communication Number FE06

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 Output terminal board status (FD07, FE07)

Output terminal board status (status immediately before the occurrence of a trip):

Output terminal board status (current status): Communication Number FD07

The output terminal function selection parameter is used to select a function for each output terminal. When monitoring the operating status, check what function is assigned to each output terminal.

Data construction of output terminal board (FD07,FE07)

Bit Terminal name Function (parameter title) 0 1

0 RY Output terminal selection1(f130)OFF ON 1 OUT Output terminal selection1(f131)OFF ON 2 FL Output terminal selection3(f132)OFF ON

3 ∼ 15 - - - -

Ex.: FE07 data when both the RY and OUT terminals are ON: 0003H

BIT15 BIT0

FE07:

0000000000000011

Communication Number FE07

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 Analog Input Monitors (FE35, FE36)

Analog input value VIA monitor: “Communication Number FE35” Analog input value VIB monitor: “Communication Number FE36” Data: 10bit resolution (Data range 0 to 1023)

These monitors can also be used as an A/D converter independent of inverter control.

Setting except for “VIA” as the frequency setting mode will allow analog input (VIA) as an A/D converter independent of inverter control.

Setting other than “VIB” as the frequency setting mode will allow analog input (VIB) as an A/D converter independent of inverter control.

Note, however, input data to analog terminals will be regarded as frequency commands in case analog input is selected in frequency setting mode selection.

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8.4. Utilizing panel (LEDs and keys) by communication

The VF-S11 can display data that is not related to the inverters through an external controller or other means. Input by key operations can also be executed. The use of inverter resources reduces the cost for the entire system.

8.4.1. LED setting by communication

Desired LED information can be displayed by communication.

<How to Set> Set the standard monitor display selection parameter to “communication LED setting ( When in the standard monitor mode status, LED information is displayed according to the setting of Communication Number FA65. (Is set to Communication Number FA65 = 1 and initial data “dAtA” in shipment setting) In case of an alarm while setting communication LEDs, the alarm display will alternately display specified LED data and alarm message. For example, if an over-current alarm (alarm display “ function, “

” and “.” will be displayed alternately.

”) occurs while “.” is displayed by this

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=).”

Commu-

nication

Number.

FA65 Select display by communication 0: Numeric data (FA66, FA67, FA68)

FA66 Numeric display data

(Enabled if FA65=0)

FA67 Decimal point position

(Enabled if FA65=0)

FA68 LED data 0 for unit

(Enabled if FA65=0)

FA70 ASCII display data 1, first digit from

left (Enabled if FA65=1)

FA71 ASCII display data 1, second digit

from left (Enabled if FA65=0)

FA72 ASCII display data 1, third digit from

left (Enabled if FA65=1)

FA73 ASCII display data 1, fourth digit from

left (Enabled if FA65=1)

FA74 LED data 1 for unit

(Enabled if FA65=1)

FA75 ASCII display data 2, first digit from

left (Enabled if FA65=2)

FA76 ASCII display data 2, second digit

from left (Enabled if FA65=2)

FA77 ASCII display data 2, third digit from

left (Enabled if FA65=2)

FA78 ASCII display data 2, fourth digit from

left (Enabled if FA65=2)

FA79 LED data 2 for unit

(Enabled if FA65=2)

Parameter Name Range

1: ASCII data 1 (FA70, FA71, FA72, FA73,

FA74)

2: ASCII data 2 (FA75, FA76, FA77, FA78,

FA79)

0-9999 0

0: No decimal point (xxxx) 1: First digit below decimal point (xxx.x) 2: Second digit below decimal point (xx.xx) 0:Hz off, % off, 1:Hz on, % off 2:Hz off, % on, 3:Hz on, % on 0 – 127 (0 – 7FH) (See ASCII LED display code chart)

0 – 256 (0 – FFH) (See ASCII LED display code chart)

0 – 127 (0 – 7FH) (See ASCII LED display code chart)

0:Hz off, % off, 1:Hz on, % off 2:Hz off, % on, 3:Hz on, % on 0 – 127 (0 – 7FH) (See ASCII LED display code chart)

0 – 256 (0 – FFH) (See ASCII LED display code chart)

0 – 256 (0 – FFH) (See ASCII LED display code chart))

0 – 127 (0 – 7FH) (See ASCII LED display code chart)

0:Hz off, % off, 1:Hz on, % off 2:Hz off, % on, 3:Hz on, % on

Shipment

setting

64H (’d’)

41H (’A’)

74H (’t’)

41H (’A’)

30H (’0’)

Page 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 and validate this set data by display selection by communication (Communication Number FA65). Syn- chronization can also be achieved by batch writing LED data parameters after changing the following block communication mode parameters and by sending data by block communication. Writing in the block communication function will be writing in the RAMs only due to the EEPROM life for write operations. The LED data will reset to the initial value “ off, in failure resetting or when standard shipment settings are set.

■ Parameter Setting “Block communication mode (Communication Number FA80)”

Setting range: 0, 1 (Initial value 0)

0: Block communication parameters ( 1: LED display ASCII data is used (When writing, ASCII display data 1 [Communication Number

FA70 - FA74], when reading, LED data displayed before change)

*To validate LED data set by using LED display block communications, set standard monitor display

selection to “communication LED select ( “ASCII data 1 (Communication Number FA65).

 - ) is used

 = ) and display selection by communication to

E6581222

“ when the power is turned

■ Format The format is the same as that used in the usual block communication mode. (For the detail information, see “4.1.3 Block communication transmission format”) The block communication parameters (

 - ) will become invalid. Write data will become ASCII display data 1 (Commu-

nication Number :FA70 - FA74) fixed. LED display data that is actually being output will be read during reading. The specification range for write operations is 0 to 5.

■ Example Assuming: Communication LED selection ( ASCII data 1 (Communication Number:FA65 = 1) for display selection by communication. LED display ASCII data (Communication Number: FA80 = 1) for the block communication mode. Current LED display status is display of initial value “

PC → Inverter: 2F580505003000310032003300035A Inverter → PC: 2F59050000640041007400410000E7

 = ) for standard monitor display selection.

”

・・・“0123” display command

・・ “dAtA” displayed before change

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E6581222

■ ASCII LED display data code (00H-1FH are blank.)

Hex Code Display Char. Hex Code Display Char. Hex Code Display Char. Hex Code Display Char.

00H BLANK 20H BLANK SP 40H BLANK @ 60H BLANK `

01H BLANK 21H BLANK ! 41H A 61H a

02H BLANK 22H BLANK 42H B 62H b

03H BLANK 23H BLANK # 43H C 63H c

04H BLANK 24H BLANK $ 44H D 64H d

05H BLANK 25H BLANK % 45H E 65H e

06H BLANK 26H BLANK & 46H F 66H f

07H BLANK 27H BLANK 47H G 67H g

08H BLANK 28H ( 48H H 68H h

09H BLANK 29H ) 49H I 69H i

0AH BLANK 2AH BLANK * 4AH J 6AH j

0BH BLANK 2BH BLANK + 4BH K 6BH k

0CH BLANK 2CH DGP , 4CH L 6CH l

0DH BLANK 2DH - 4DH M 6DH m

0EH BLANK 2EH DGP . 4EH N 6EH n

0FH BLANK 2FH / 4FH O 6FH o

10H 30H 0 50H P 70H p

11H 31HT 1 51H Q 71H q

12H 32H 2 52H R 72H r

13H 33H 3 53H S 73H s

14H 34H 4 54H T 74H t

15H 35H 5 55H U 75H u

16H 36H 6 56H V 76H v

17H 37H 7 57H BLANK W 77H BLANK w

18H 38H 8 58H BLANK X 78H BLANK x

19H 39H 9 59H Y 79H y

1AH 3AH BLANK : 5AH BLANK Z 7AH BLANK z

1BH 3BH BLANK ; 5BH [ 7BH {

1CH 3CH < 5CH ＼ 7CH BLANK |

1DH 3DH = 5DH ] 7DH }

1EH BLANK 3EH > 5EH ^ 7EH BLANK Æ

1FH BLANK 3FH BLANK ? 5FH _ 7FH BLANK

*Dots to show decimal points and other uses can be added by setting (80H) Bit 7 (highest bit). Example: “0.” to display “60.0” can be added by “30H + 80H = B0H.”

Page 61

E6581222

8.4.2. Key utilization by communication

The VF-S11 can use the panel keys on the inverters through external communications. This function is available with CPU version 1 (Communication Number: FE08) = 104 or higher.

■ Key Monitoring Procedure Set panel key selection (Communication Number: FA10) to “1” to set the external key mode. However, if communication duration is less than 1sec to avoid an inverter operation shutdown in communication disruption, communication must always be maintained, such as monitoring key data and LED data to automatically reset inverter operations to inverter key operation (FA10 = 0). Set to the external communication key mode (FA10 = 1) to disable the key function of the inverters so that inverter operation will not be affected by pressing of the keys on the inverters. By monitoring key information, which is input by the keys on the inverters in this condition, through inverter key data (Communication Number; FC01), the keys on the inverters can be operated through a controller and other devices. * When the key mode is the external key mode, key operation as an inverter function is disabled and the inverters cannot be stopped by pressing the STOP key to stop inverter operation. Enable emergency stop through an external terminal or other device when an inverter stop is desired.

Panel Key Selection (Communication Number:FA10) The panel key selection parameter (Communication Number; FA10) discriminates which keys are to be used, panel keys on the inverters or keys sent by external communications, as panel keys used in panel processing of the inverters.

Communication No.：FC01

Panel key data of inverters

Communication No.：FA11

External communication

Keys on inverters enabled (Communication Number; FA10 = 0): Key data: Data of keys on inverters (Communication Number : FC01)

FA10=”0”

FA10=”1”

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

KPP

“KPP” for Bit 7 indicates that panel keys are mounted on the inverters.

External keys enabled (Communication Number; FA10 = 1): Key data: External key data (Communication Number: FA11)

Not

defined

ENT MON DOWN UP STOP RUN

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

- - ENT MON DOWN UP STOP RUN

Communication No.：FC00

Key data for inverte control panel processing

Key monitoring (Communication Number : FC00):

Information of the enabled keys on the inverters can be monitored.

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

KPP - ENT MON DOWN UP STOP RUN

“KPP” for Bit 7 indicates that panel keys are enabled on the inverters.

Page 62

9. Parameter data

Explanation of parameters for VF-S11 series is described here. For communication purposes, see the parameter list on inverter's instruction manual regarding the communication number, adjustment range and so forth.

■ Referring to the parameter list

E6581222

Minimum

setting unit

Panel/Com

munication

Displays parameters in groups of five in the reverse order to that in which their settings were changed. * (Possible to edit)

0: Disabled (manual) 1: Automatic 2:Automatic (only at accelera-

0:Disabled 1:Automatic torque boost +

2:Vector control + auto-tuning

Title

auh





Communication No.

- History function - -

0000

0001

Function unit

Automatic ac-

celera-

tion/deceleration

Automatic tor-

que boost

：



0009

Acceleration time1

S 0.1/0.1 0.0-3200 10.0 5.1.2

：

Adjustment range

tion)

autotuning

3:Energy saving + auto-tuning

Default

setting

0 5.1.1

05.2

User

setting

Reference

4.1.4

- The summary of parameter list relating to the communication is as follows.

(1) “Title” means the display on the inverter panel.

(2) “Communication number” is affixed to each parameter that is necessary for designating the parameter for com-

munication.

(3) "Adjustment range" means a data range adjustable for a parameter, and the data cannot be written outside the

range. The data have been expressed in the decimal notation. For writing the data through the communication function, take the minimum setting unit into consideration, and use hexadecimal system.

(4) "Minimum setup unit" is the unit of a single data (when the minimum unit is "-", 1 is equal to 1).

For example, the "minimum setup unit" of acceleration time () is 0.01, and 1 is equal to 0.01s. For setting a

data to 10 seconds, transmit 03E8h [10

÷0.01=1000d=03E8h] by communication.

Page 63

■ Command parameters

For those parameters that contain data only in the RAM and not in the EEPROM, their data return to initial values when the power is turned off, in failure resetting, or when standard shipment settings are set. Note that parameters without data storage in the EEPROMs will be written in the RAMs only even if the command W (writing in EEPROMs and RAMs) is executed.

E6581222

■ Commands

ommunica

tion

Num-

ber.(HEX)

FA00 Command 1 (Communication)

　　　　　　　　　　　　　　　　　　　　　　　　　NOTE : Data is expressed in decimal notation.

Function

＊

FA01 Operation frequency command

value (Communication)

FA03 Operation frequency command

value (Panel)

FA10 FA11 External communication key

FA20 Command 2 (Communication)

FA26 Command 3 (Communication)

FA50 FA51

FA65 Select display by communica-

FA66 FA67 FA68

Panel key selection

＊

data

＊

Terminal output data Analog output data

＊

tion Numerical display data Decimal point position LED data for unit 0

FA70 ASCII display data 1

First digit from left

FA71 ASCII display data 1

Second digit from left

FA72 ASCII display data 1

Third digit from left

FA73 ASCII display data 1

Fourth digit from left

FA74

LED data for unit1

FA75 ASCII display data 2

First digit from left

FA76 ASCII display data 2

Second digit from left

FA77 ASCII display data 2

Third digit from left

FA78 ASCII display data 2

Fourth digit from left FA79 FA80

LED data for unit 2

Block communication mode

＊

Adjustment Range

0 to 65535

＊

)

(

0 to Max. frequency

Low-limit frequency

) to High-limit

( frequency (

)

0 to 1 0 to 65535

0 to 65535

Min.

Setting

Unit

Initial

Value

−

0.01Hz 0 yes None

0.01Hz 0 yes Available

−

Write

During

peratio

EEP

ROM

0 yes None

0 yes None 0 yes None

0 yes None

0 to 65535 1 0 yes None 0 to 1023

1 0 yes None (10-bit resolution) 0 to 2

0-9999 1 0 yes Available 0 to 2 0 to 3 0 to 127

−

1 yes Available

0 yes Available 0 yes Available

100

yes Available

(‘d’)

0 to 255

−

yes Available

(‘A’)

0 to 255

−

116

yes Available

(‘t’)

0 to 127

−

yes Available

(‘A’) 0 to 3 0 to 127

−

0 yes Available

yes Available

(‘0’)

0 to 255

−

yes Available

(‘0’)

0 to 255

−

yes Available

(‘0’)

0 to 127

−

yes Available

(‘0’)

0 to 3

＊

0 to 1

−

0 yes Available 0 yes Available

＊

: Enable the communication command or communication frequency setting before setting these

parameters are set. Otherwise, the parameters will not function. See “8.1 Command by communication” for the method to enable them.

＊

: Note that the Communication Number for operation frequency command values (panel) is FA02

in the VF-S7 and VF-S9 series.

＊

: See “8.3 Control of input/output signals from communication” for the detail information.

＊

: See “8.4 Utilizing panel (LEDs and keys) by communication” for the detail information.

Page 64

■ Monitor parameters * These parameters are read-only (monitor-only) parameters.

E6581222

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 - Trip code - See 8.2. FC91 - Alarm code - See 8.2. FD00 - Operation frequency (current frequency) 0.01Hz FD01 - Inverter status (current status) - See 8.2. FD06 - Input terminal information (current information) - See 8.3. FD07 - Output terminal information (current information) - See 8.3. FD42 - Inverter status2 (current status) - See 8.2. FD49 - Inverter status3 (current status) - See 8.2. FE00 - Operation frequency FE01 - Inverter status FE02 - Operation frequency command (actual instruction)

0.01Hz

- See 8.2.

0.01Hz FE03 - Load current 0.01% FE04 - Input Voltage 0.01% FE05 - Output voltage FE06 - Input terminal information FE07 - Output terminal information

0.01%

- See 8.3.

- See 8.3. FE08 - CPU1 version FE09 - EEPROM version FE10 - Past trip 1 - See 8.2. FE11 - Past trip 2 - See 8.2. FE12 - Past trip 3 - See 8.2. FE13 - Past trip 4 - See 8.2. FE14 - Cumulative operation time 1H FE15 - Primary frequency (compensated frequency) FE16 - Estimated motor operation frequency

0.01Hz

0.01Hz FE18 - Torque 0.01% FE20 - Torque current FE21 - Excitation current FE22 - Analog (VIA) input frequency FE26 - Motor (Electronic-thermal) load factor FE27 - Inverter load factor

0.01%

0.01Hz

1% FE29 Input power 0.01KW FE30 - Output power FE35 - Analog input value VIA

0.01KW

- See 8.3.

10-bit resolution (data range: 0 to 1023)

FE36 - Analog input value VIB

- See 8.3.

10-bit resolution (data range: 0 to 1023) FE42 - Inverter status2 - See 8.2. FE45 - Command mode(CMOD) status - See 8.2. FE46 - Frequency mode(FMOD) status - See 8.2. FE49 - Inverter status3 - See 8.2. FE70 - Rated current 0.1A FE71 - Rated voltage 0.1V FE73 - CPU2 version FE75 - monitor of inverter number Hard SW FE76 - Integral Input power 0.01kWh FE77 - Integral Output power 0.01kWh FE79 - Life alarm information - See 8.2. FE80 - Cumulative power-on time 1H

*5: If a trip occurs, data immediately before its occurrence is displayed.

Page 65

Appendix 1 Table of data codes

• JIS (ASCII) codes

E6581222

Higher orde

Lower order

0NULTC 1TC 2TC 3TC 4TC 5TC 6TC 7 BEL TC10(ETB) 8FE 9FE AFE

BFE CFE DFE ESO IS FSI IS

0 1 234567

(DLE) (SP)

(SOH) DC

(STX) DC

(ETX) DC

(EOT) DC

(ENQ) TC8(NAK)

(ACK) TC9(SYN)

”２ＢＲｂｒ＃３ＣＳｃｓ＄４ＤＴｄｔ％５ＥＵｅｕ＆６ＦＶｆｖ

０＠Ｐ、ｐ１ＡＱａｑ

ʼ７ＧＷｇｗ

(BS) CAN

(HT) EM

(LF) SUB

(VT) ESC

(FF) IS4(FS)

(CR) IS3(GS)

(RS)

(US)

（８ＨＸｈｘ）９ＩＹｉｙ＊：ＪＺｊｚ＋；Ｋ［ｋ｛，＜Ｌ￥ｌ｜

−＝Ｍ］ｍ｝．＞Ｎ＾ｎ￣／？Ｏ＿ｏ

DEL

CR: Carriage return

Ex.: Code 41 = Character A

Page 66

Appendix 2 Response time

The communication response time can be calculated from data communication time and inverter processing time. When wishing to know the communication response time, calculate using the following as a reference

E6581222

Data transmission time

PC → Inverte

Res

■ Data transmission time

* Number of bits = start bit + data frame length + parity bit + stop bit * Minimum number of bits = 1 + 8 + 0 + 1 = 10 bits * Maximum number of bits = 1 + 8 + 1 + 2 = 12 bits

■ Data processing time of inverter Data processing time: maximum 20ms

Data processing time of inverte

Data transmission time

Inverter → PC

onse time

time ontransmissi Data ××=

time ontransmissi Data =××=

rate baud

19200

4.6ms118

bits of numberdtransmitte bytes of number

Page 67

E6581222

Appendix 3 Compatibility with the communications func-

tion of the VF-S9

To provide consistency in communications procedures, the communications function of the VF-S11 series of inverters has been designed based on the protocols used for the Toshiba VF-S9 series of inverters. With regard to compatibility, however, VF-S9 users should check the items described below before using the communications function of their inverters.

■ To VF-S9 inverter users: Some parameters of the VF-S9 are different from those of the VF-S11 in function or adjustment

range (upper and lower limits), even though they have the same title or the same communication number. So, when accessing a parameter, consult the VF- S9 inverter’s instruction manual to see if the parameter is identical to the corresponding parameter of the VF-S11. If the parameter differs, modify the computer program to suit your inverter. To avoid hazards, never copy parameters from one model of inverter to another.

■ Comparison of communication-related items The table below gives a comparison of communication-related items to be kept in mind when re-

placing VF-S9 inverters with VF-S11 inverters or when connecting VF-S9 inverters and VF-S11 inverters to the same network. It does not cover any items common to the VF-S9 and VF-S11 series of inverters.

Model

Item

Data processing time of inverter

♦ Do not use communications programs written for another series of inverters.

Even though parameters have the same title and the same communication number, they may be different in function. When using a parameter, always check its specifications in the instruction manual for your inverter. If the specifications of the parameter differ, modify the computer program to suit your inverter.

♦ To avoid hazards, do not copy parameters from one model of inverter to another.

Even though parameters have the same titles and communication numbers, they may be different in function.

VF-S9 VF-S11 Reference

About 8 ms (This is only standard time, not guarantee time.)

Notice

maximum 20ms Appendix 2

Page 68

Appendix 4 Troubleshooting

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.

Problem Remedies Reference

E6581222

Communications will not take place.

An error code is returned.

The trip  occurs. - Check the cable connection and the timer setting. Section 7.3

The slave of " Inter-drive communication " did an

Frequency instructions from the computer have no effect. Commands, including the run and stop commands, from the commuter have no effect. A change to a parameter does not take effect.

The setting of a parameter was changed, but it returns to its original setting when the inverter is turned off.

err5 trip.

- Are both the computer and the inverter turned on?

- Are all cables connected correctly and securely?

- Are the same baud rate, parity and bit length set for every unit on the network?

- Is the data transmission format correct?

- Does the data written fall within the specified range?

- Some parameters cannot be written during inverter operation.

Changing should be attempted when the inverter is in halt.

- Is a communication waiting time parameter on the master side set up? Set bigger value than present value on the master's transmitting interval.

- Is the frequency setting mode selection parameter set to “computer”? Section 8.1

- Is the command mode selection parameter set to “computer”? Section 8.1

Some communications-related parameters do not take effect until the inverter is reset. To make them take effect, turn the inverter off temporarily, then turn it back on. When using the TOSHIBA Inverter Protocol, use the W command to write data into the EEPROM. If you use the P command that writes data into the RAMs only, the data will be cleared when the inverters are reset.

Chapter 7

Section 4.1 Section 5.1 Chapter 9 Inverter instruction manual

Chapter 6

Section 7.4

Chapter 7

Section 4.2

66E

Toshiba VF-S11 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual