SANYU SY6600, User Manual

Page: 113 / 125

SY6600 Vector Control Inverter User Manual
113
=0
，
reverse run
bit1 =1
，
inverter fault
=0
，
inverter no fault
bit2 =1
，
inverter running
=0
，
inverter stop
bit3 =1
，
data valid
=0
，
data invalid
bit4 =1
，
RS485 frequency setting
=0
，
local frequency setting
BYTE8
is the error code
ED
End byte A0H
，
one byte
SUM
Xor check
Xor form BYTE1
to
BYTE9
3．2 Application note
1．The OP,DT,ST,CON in communication protocol are two bytes. The address calculation of OP is
converting the parameter address of the parameter list to HEX value. For example, 270 parameter,
convert to 10E in hex format; the lower byte of OP is 0eh;the higher byte of OP is 01h. Other parameters
that are not listed in parameter table are as following table.
1000H Status word 1001H Error code 1002 H Control word
1003H
Frequency setting
1004H
Running
frequency
1005H
Output current
1006H
Output voltage
1007H
DC bus voltage
1008H
Overload rate
1009H
Preset line speed
100AH
Running line
speed
100BH
Output torque
100CH
PI reference
100DH
PI feedback
100EH reserved
100FH
Analog input AI1
1010H
Analog input
AI2
1011H
I/O status
1012H
External counting
value
1013H PID Set
2
．
For example, the computer set the set frequency of the inverter to 50.00Hz and send the run command to the
inverter. The address of the inverter is 01h. The OP of the setting frequency is 1003h in hex format. The Setting
frequency 50.00(5000) is converted to 1388h in hex format.
A message from computer to the inverter:
02H 01H 10H 03H 10H 88H 13H 03H 00H A0H 3AH
The inverter response:
02H 01H 00H 03H 10H 88H 13H 1DH 00H A0H 34H
3．3
Fault and troubleshooting
1. The protocol provide
Start byte, end byte , xor check means to ensure the correctness of the communication.
2. There must be two bytes interval between two message.