Toshiba TOSVERT VF-AS1 instruction manual Contents

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		E6581315
Contents
1.	General outlines of the communication function	3
2.	Data transmission specifications	4
3.	Communication protocol	5
	3.1. About the handling of received frames	5
4.	TOSHIBA Inverter Protocol	6
	4.1. Data transmission format	7
	4.1.1. Data transmission format used in ASCII mode	7
	4.1.2. Data transmission format used in binary mode	10
	4.1.3. Transmission format of Block Communication	13
	4.2. Commands	17
	4.3. Transmission errors	20
	4.4. Broadcast communication function	21
	4.5. Examples of the use of communication commands	23
	4.6. Examples of Communication programs	24
5.	MODBUS-RTU protocol	29
	5.1. MODBUS-RTU transmission format	30
	5.1.1. Read command (03)	30
	5.1.2. Write command (06)	31
	5.2. CRC Generation	32
	5.3. Error codes	32
6.	Inter-drive communication	33
	6.1. Proportional control of speed	37
	6.2. Transmission format for inter-drive communication	39
7.	Communication parameters	40
	7.1. Baud rate(, ) , Parity ()	42
	7.2. Inverter number()	42
	7.3. Communication time-out time (), Communication time-out action (f804)	43
	7.4. Send waiting time (, )	44
	7.5. Free notes()	44
8.	Commands and monitoring from the computer	45
	8.1. Communication commands (commands from the computer)	45
	8.2. Monitoring from the computer	49
	8.3. Utilizing panel (LEDs and keys) by communication	58
	8.3.1. LED setting by communication	58
	8.3.2. Key utilization by communication	61
9.	Parameter data	62
Appendix 1 Table of data codes		67
Appendix 2 Response time		68
Appendix 3 Compatibility with the communication function of the VF-A7		69
Appendix 4 Troubleshooting		70
Appendix 5 Connecting for RS485 communication		71

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