Toshiba VF-nC1 Using RS232C/RS485 conversion units, Setting up the communications function

E6581090

■Communications parameters (Common serial options)

The data transfer rate, parity type, inverter ID number and communication error trip time can be changed from the operation panel or the computer on the network.

Title	Function	Adjustment range	Default setting
H	Communication baud rate	0: 1200bps	3
		1: 2400bps
		2: 4800bps
		3: 9600bps
		4:19200bps
H	Parity (Common serial)	0: Non (non parity)	1
		1: Even (even parity)
		2: Odd (odd parity)
H	Inverter number	0～99	0
H	Communication error trip	0: Disabled	0
	time	1～100 (sec)

	*: Disabled･･･Means that the inverter will not trip even if a communication error occurs.
	Trip ･･･････Means that the inverter will trip if a time-out occurs.	6
	If a time-out occurs, the error message “GTT” will blink on the display panel.
6.16.1	Using RS232C/RS485 conversion units
	■Setting up the communications function
	Commands (RUN/STOP commands) entered across a network have priority (over commands
	from the operation panel or terminal boards).

■Data transmission specifications

	Item	Specifications
	Data transmission	Half-duplex
	scheme
	Connection scheme	Centralized control
	Synchronization	Asynchronous
	scheme
	Data transfer rate	Default: 9600 baud (parameter setting)
		Selectable from among 1200, 2400, 4800, 9600 and 19200 baud
	Character	ASCII mode ... JIS X 0201, 8-bit (fixed, ASCII)
	transmission	Binary code ... Binary code, 8-bit (fixed)
	Stop bit length	Receive (inverter): 1bit, Send (inverter): 2 bits
	Error detection	Parity: Selectable among Even, Odd and Non by parameter setting,
			Check sum method
	Character	Receiving: 11-bit, Sending: 12-bit
	transmission format
	Order of bit	Lower-order bits first
	transmission
	Frame length	Variable to a maximum of 17 bytes
■Examples of connection for RS485 communications
	<Example of connection>
	Host computer	Optional unit		Optional unit
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