INVT GD200A-004G-4, Руководство по эксплуатации

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GD200A series VFD Communication protocol
-138-
ASCII master command message (the
command sent by the master to the VFD)
ASCII slave response message (the message
sent by the VFD to the master)
Byte number
'0' LRC CHK Hi 'E'
'4' LRC CHK Lo '8'
High bit of data 0004H
content
'1' END Hi CR
'3' END Lo LF
Low bit of data 0004H
content
'8'
'8'
High bit of data 0005H
content
'0'
'0'
Low bit of data 0005H
content
'3'
'2'
LRC CHK Hi '1'
LRC CHK Lo '7'
END Hi CR
END Lo LF
9.5 The definition of data address
The address definition of the communication data in this part is to control the running of the VFD and
get the state information and relative function parameters of the VFD.
9.5.1 The rules of parameter address of the function codes
The parameter address occupies 2 bytes with the fact that the high bit is in the front and the low bit is
in the behind. The range of high and low byte are: high byte
—
00
–
ffH; low byte
—
00
–
ffH. The high
byte is the group number before the radix point of the function code and the low byte is the number
after the radix point. But both the high byte and the low byte should be changed into hex. For
example P05.06, the group number before the radix point of the function code is 05, then the high bit
of the parameter is 05, the number after the radix point 05, then the low bit of the parameter is 06,
then the function code address is 0506H and the parameter address of P10.01 is 0A01H.
Function code Name Parameter description
Default
value
Modify
P10.00
Simple PLC
means
0: Stop after running once.
1: Run at the final value after running
once.
2. Cycle running.
0
○
P10.01
Simple PLC
memory
selection
0: Power loss without memory
1: Power loss: PLC record the running
stage and frequency when power loss.
0
○
Note: P29 group is the factory parameter which cannot be read or changed. Some parameters
cannot be changed when the VFD is in the running state and some parameters cannot be changed
in any state. The setting range, unit and relative instructions should be paid attention to when
modifying the function code parameters.