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4. Parameter description
Parameter
*1)
Description of Control Code (ASCII CODE)
Control Code
ASCII CODE
Description
Control Code ASCII
码
Description
NUL
H00
NULL
ACK
H06
Acknowledge
STX
H02
Start of Text
LF
H0A
Line Feed
ETX
H03
End of Text
CR
H0D
Carriage Return
ENQ
H05
Enquiry
NAK
H15
Negative Acknowledge
*2)
Wait time setting is from 0 to 15
,
unit is 10ms, for example 5 means 50ms.
*3)
Stop Character(CR
、
LF CODE)
From the PC to the inverter for data communication, packet last CR, LF code by way of the PC
is automatically set. The inverter with thePC must also make the necessary settings. If you
select only the CR, then only one register is needed. If you choosen CR and LF, accounted for
the two registers.
*4)
Unit: 0 means unit is 1, 1 means unit is 0.1, 2 means unit is 0.01, 3 means unit is 0.001.
*5)
Error Code:
Error
Code
Error Item
Communication error exception content
H01
Error
Parity check which inverter received is different from the initial set.
H02
Sum Check
Error
Inverter side of the calculation of the received data value Sum Check
and the Sum Check which received are different.
H03
Protocol Error
The information which the inverter received is syntax errors, or not
within the specified time information has been received, or CR and LF
code is different from the initial set.
H04
Frame Error
STOP bit which inverter received is different from the initial set.
H05
Overflow
Error
When the inverter receives data, has not yet been received, the PC in
turn write the incoming data.
H0A
Mode
Exceptions
When the inverter is running or does not in right operation mode for
writing.
H0B
Command
Code Error.
Specifies command code which the inverter can not handle.
H0C
Data Range
Error
The data is outside the range of the specified when set parameters and
frequency.
*6)
When the parameters have 9999 properties, write or read HFFFF instead of 9999.
*7)
Sum check code
ASCII code data transformed code, Add in binary code; the result (sum) of the next bit (the low
8-bit) is transformed into 2 bit ASCII code (hexadecimal), called the Sum Check Code.