9
5
Parameter Description
Parameter Description
Parameter
Factory
Setting
Setting Range
Remarks
Parameter
1
Only CR
51
1
1~2
2
CR and LF
52
1
0~10
Note 2
0~999.8 Conduct communication overtime test
according to the set value
53
9999
0~999.8s, 9999
9999
9999: No communication overtime test
Note 3
0
Warn and call to stop
153
0
0, 1
1
No warning and keep running
0
Modbus ASCII mode, Protocol<1,7,N,2>
Note 4
1
Modbus ASCII mode, Protocol<1,7,E,1>
2
Modbus ASCII mode, Protocol<1,7,O,1>
3
Modbus RTU mode, Protocol<1,8,N,2>
4
Modbus RTU mode, Protocol<1,8,E,1>
154
4
0~5
5
Modbus RTU mode, Protocol<1,8,O,1>
Note: 1.The wiring method and matching resistance determines the number of inverters controlled by the
communication interface of the host computer. Once Modbus protocol is selected, please set P.33 to none
zero values.
2. If the time of communication errors exceeds the set value of P.52 while P.153 is set to 0, alarm will be
activated and the screen of DU06 will display
.
3. When P.53=9999, there is no time limit.
4. For Modbus protocol, protocol 1 is the start bit; 7 is the data bits; No is the parity bit; 2 is the stop bit; N
means no parity; E means 1-bit even parity; and O means 1-bit odd parity.
1. Shihlin protocol
Automatic ASCII code (hexadecimal) conversion for communication between PC and the inverter.
Follow the steps below for data communication between the inverter and the computer.
①
②
③
④
⑤
PC
Inverter
Inverter
PC
time
Data reading
Data writing
