Time-Out Detection; Communication Protocol - Delta Electronics AC Motor Drive VFD-EL User Manual

Time-out Detection

09.03
Settings
If Pr.09.03 is not equal to 0.0, Pr.09.02=0~2, 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
A VFD-EL can be set up to communicate in 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:
The CPU will be about 1 second delay when using communication reset. Therefore, there
is at least 1 second delay time in master station.
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 August 2008, 2ELE, V1.02
0.0 to 120.0 sec
0.0 Disable
0 Modbus ASCII mode, protocol <7,N,2>
1 Modbus ASCII mode, protocol <7,E,1>
2 Modbus ASCII mode, protocol <7,O,1>
3 Modbus RTU mode, protocol <8,N,2>
4 Modbus RTU mode, protocol <8,E,1>
5 Modbus RTU mode, protocol <8,O,1>
6 Modbus RTU mode, protocol <8,N,1>
7 Modbus RTU mode, protocol <8,E,2>
8 Modbus RTU mode, protocol <8,O,2>
9 Modbus ASCII mode, protocol <7,N,1>
10 Modbus ASCII mode, protocol <7,E,2>
11 Modbus ASCII mode, protocol <7,O,2>
'0' '1'
30H 31H
Chapter 4 Parameters|
'2' '3' '4'
32H 33H 34H
Unit: 0.1
Factory Setting: 0.0
Factory Setting: 0
'5' '6' '7'
35H 36H 37H
4-85