Chapter 5 Parameters_VFD-B Series
5-92
Revision 10/2005, BE13, SW V4.08
09 - 02
aTransmission Fault Treatment
Factory Setting: 03
Settings 00 Warn and keep operating
01 Warn and RAMP to stop
02 Warn and COAST to stop
03 No warning and keep operating
This parameter is set to how to react if transmission errors occur.
See list of error messages below (see section 3.6.)
09 - 03
aTime-out Detection Unit: 0.1
Settings 0.0 ~ 60.0 sec Factory Setting: 0.0
0.0 Disable
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
aCommunication Protocol
Factory Setting: 00
Settings 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>
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:
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