SY6600 Vector Control Inverter User Manual
111
a. Operation control:
Run, Stop, Jog start, Jog stop, free run to stop, Dec to Stop, fault reset,
etc.
b. Operation monitor:
Running frequency, frequency setting, output voltage, output current, close
loop feedback, close loop reference, etc.
c. Operation of function code:
Read and write value of function code, which includes:
Present running frequency, present frequency setting, output voltage,
current, close loop feedback, close loop reference, etc.
3.
Free communication
Protocol
3．1
Data
：
Character format
:
8
，
N
，
1
，
8 bit data
，
one bit stop, no parity
8
，
E
，
1
，
8 bit data
，
one bit stop, Even parity
8
，
O
，
1
，
8 bit data
，
one bit stop, Odd parity
1.
A message from computer to inverter
BYTE0
BYTE1
BYTE2
BYTE3
BYTE4
BYTE5
BYTE6
BYTE7
BYTE8
BYTE9
BYTE10
HD
AD
CD
OP
DT
CON
ED
SUM
Item
Byte Name
Detail
HD
Start byte
02H
，
one byte
AD
address
Inverter address
，
one byte
，
0 is broadcast address
CD
Parameter R/W
command
One byte
0h
：
no operation
1h
：
read parameter from the inverter
10h
：
write parameter from the inverter
，
not store into eerom
11h
：
write parameter from the inverter
，
store into eerom
OP
Parameter number
Parameter number
，
two bytes
，BYTE3
is lower byte
，
BYTE4
is higher
byte
DT
Parameter value
Parameter value
，
two bytes
，BYTE5
is lower byte
，BYTE6
is higher
byte
CON
Control word
Command word
，
two bytes
，
BYTE7
is lower byte
，BYTE8
is higher byte
Bits of BYTE7
are defined as following:
bit0
=1
，
run command
=0
，
no command
