Toshiba VF-nC1 User Manual download pdf (Page 93)

E6581090

F-29

■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

1: 2400bps

2: 4800bps

3: 9600bps

4:19200bps

H Parity (Common serial) 0: Non (non parity)

1: Even (even parity)

2: Odd (odd parity)

H Inverter number

0～99

H Communication error trip

time

0: Disabled

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.

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

scheme

Half-duplex

Connection scheme Centralized control

Synchronization

scheme

Asynchronous

Data transfer rate Default: 9600 baud (parameter setting)

Selectable from among 1200, 2400, 4800, 9600 and 19200 baud

Character

transmission

ASCII mode ... JIS X 0201, 8-bit (fixed, ASCII)

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

transmission format

Receiving: 11-bit, Sending: 12-bit

Order of bit

transmission

Lower-order bits first

Frame length Variable to a maximum of 17 bytes

■Examples of connection for RS485 communications

Optional unit

Host computer

nC1 nC1 nC1 nC1 nC1

・・・・

Optional unit

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 142 143

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