Transmission Fault Treatment; Time-Out Detection; Communication Protocol; Control By Pc Or Plc - Delta VFD-B User Manual

09 - 02

Transmission Fault Treatment

Settings
This parameter is set to how to react if transmission errors occur.
See list of error messages below (see section 3.6.)
09 - 03

Time-out Detection

Settings
If Pr.09-03 is not equal to 0.0, Pr.09-02=00~02, and there is no communication on the bus
during the Time Out detection period (set by Pr.09-03), "cE10" will be shown on the keypad.
09 - 04

Communication Protocol

Settings

1. Control by PC or PLC

A VFD-B can be set up to communicate on Modbus networks using one of the following modes:
ASCII (American Standard Code for Information Interchange) or RTU (Remote Terminal Unit).
Users can select the desired mode along with the serial port communication protocol in Pr.09-04.
Code Description:
ASCII mode:
Each 8-bit data is the combination of two ASCII characters. For example, a 1-byte data:
64 Hex, shown as '64' in ASCII, consists of '6' (36Hex) and '4' (34Hex).
Character
ASCII code
Revision July 2008, BE16, SW V4.08 & V5.00
00 Warn and keep operating
01 Warn and RAMP to stop
02 Warn and COAST to stop
03 No warning and keep operating
0.0 ~ 60.0 sec
0.0 Disable
00 Modbus ASCII mode, protocol <7,N,2>
01 Modbus ASCII mode, protocol <7,E,1>
02 Modbus ASCII mode, protocol <7,O,1>
03 Modbus RTU mode, protocol <8,N,2>
04 Modbus RTU mode, protocol <8,E,1>
05 Modbus RTU mode, protocol <8,O,1>
'0' '1'
30H 31H
Chapter 5 Parameters|VFD-B Series
'2' '3' '4'
32H 33H 34H
Factory Setting: 03
Unit: 0.1
Factory Setting: 0.0
Factory Setting: 00
'5' '6' '7'
35H 36H 37H
5-83