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Toshiba VF-AS1, TOSVERT VF-AS1 Appendix 5 Connecting for RS485 communication

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Appendix 5 Connecting for RS485 communication

 Connector diagram for 2-wire RS485 communication

 Connecting diagram for 2-wire RS485 communication

* Never use pin-7 (P11).

Master

RXD+/TXD+

RXD-/TXD-

Pin-4

Pin-5

Pin-8

(Pin-3)

Straight Straight

Terminating resistance

120 -1/2W

Straight

Slave

RXD+/TXD+

RXD-/TXD-

Slave

RXD+/TXD+

RXD-/TXD-

Slave

RXD+/TXD+

RXD-/TXD-

Signal name Pin number Description

RXD+/TXD+ 4 Same phase reception data (positive line)

RXD-/TXD- 5 Anti-phase reception data (negative line)

FWE 6FEW (Do not connect the cable.)

SG 8

(3)

Ground line of signal data

PRG(TX) 2PRG (Do not connect the cable.)

PRG(RX) 1PRG (Do not connect the cable.)

P11 711V (Do not connect the cable.)

Pin-1Pin-8

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Contents

Main Read first Safety precautions Notice Contents 1. General outlines of the communication function 2. Data transmission specifications 3. Communication protocol 3.1. 4. TOSHIBA Inverter Protocol 4.1. Data transmission format 4.1.1. Data transmission format used in ASCII mode Page Page 4.1.2. Data transmission format used in binary mode Page Page 4.1.3. Transmission format of Block Communication Page Page Page 4.2. Commands W (57H) (RAM*1 /EEPROM*2 write) Notice P (50H) (RAM*1 write) R (52H) (Data read) G (47H) (Data read) S (53 H)/ s (73 H) Inter-drive communication command(RAM*1 Write) X(58H)/Y (59H) (Block Communication Command) 4.3. Transmission errors 4.4. Broadcast communication function Page 4.5. Examples of the use of communication commands 4.6. Examples of Communication programs Page Page Page Page 5. MODBUS-RTU protocol Inverter number ( 5.1. MODBUS-RTU transmission format 5.1.1. Read command (03) 5.1.2. Write command (06) Note 5.2. CRC Generation 5.3. Error codes 6. Inter-drive communication 34 QWiring (2-wire RS485 communication) * Never use pin-7 (P11). QWiring (4-wire RS485 communication) Page 6.1. Proportional control of speed fcsideMaster (%)fc 10000 10000 FHsideSlave(%)datareceiveSlave )Hz(fc = Page 6.2. Transmission format for inter-drive communication Specify FA01 for two-wire RS485 communication. Specify FA05 for four-wire RS485 communication. 40 7. Communication parameters Page 7.1. Baud rate(, ) , Parity () 7.2. Inverter number() 7.3. f804 Communication time-out action ( ), ( Send waiting time (, ) Computer link PC INV INVPC Inter-drive communication 7.5. Free notes() 8. Commands and monitoring from the computer 8.1. Communication commands (commands from the computer) Communication command2 (Communication Number : FA20, FA22) Frequency setting from the computer Communication Number: FA01, FA05 Torque command setting from the computer 2-wire RS485 communication: FA30, 4-wire RS485 communication: FA32 Terminal board output data (FA50) FM analog output (FA51) AM analog output (FA52) 8.2. Monitoring from the computer Monitoring of the output frequency from the computer (FD00, FE00) Monitoring of the output current with the computer (FD03, FE03) Input terminal board status (FD06, FE06) Output terminal board status (FD07, FE07) Monitoring of the analog input with the computer (FE35 to FE39) Inverter operating status 1 (FD01, FE01) Inverter operating status 2 (FD42, FE42) Inverter operating status 3 (FD49, FE49) Inverter operating command mode status (FD45, FE45) Inverter operating frequency mode status (FD46, FE46) Alarm information monitor (FC91) Cumulative operation time alarm monitor (FE79) Trip code monitor (current status: FC90: historic records: FE10 to FE13) Inverter model (capacity) code (FB05) 8.3. Utilizing panel (LEDs and keys) by communication 8.3.1. LED setting by communication Block Communication Function for LED Display 60 ASCII LED display data code (00H-1FH are blank.) 8.3.2. Key utilization by communication KPP EASY ENT MODE DOWN UP STOP RUN - EASY ENT MODE DOWN UP STOP RUN KPP EASY ENT MODE DOWN UP STOP RUN 9. Parameter data Page Page Page Page Appendix 1 Table of data codes Appendix 2 Response time Appendix 3 Compatibility with the communication function of the VF-A7 Notice Appendix 4 Troubleshooting -I s - Appendix 5 Connecting for RS485 communication