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13
Reserve
14
Reserve
15
Reserve
16
E.PId
17
E.OHt
18
E.OL2
19
E.PG
20
E.PHo
21
E.COA
22
E.COb
23
E.CAL
NOTE 5：Fault funning status
LED first position
bit15-bit12
Forward
F
0
command
Reverse
R
1
command
S
2
Stop command S
E.g. keyboard display FF-A（return data 0001） ，said when fault occurs the inverter state：
forward command、forward state、accelerating running
I-4-5.
CRC checkup sum
Data meaning：data frame CRC checkup sum, using 2 bytes.
Checkup sum ＝ address + function code + data
Enclose：CRC computation program：
unsigned int cal_crc16 (unsigned char *data, unsigned int length)
{
unsigned int i,crc_result=0xffff;
while(length--)
{
crc_result^=*data++;
for(i=0;i<8;i++)
PID regulation fault
Motor over heat fault
Motor over load fault
PG error
Inverter output loss phase
Rs485 communication port A fault
Rs485 communication port B fault
Parameter indentification fault
LED second position
bit11-bit8
Forward
F
0
status
Reverse
R
1
status
2
Stop status
155
LED third position
bit7-bit4
Separative
-
0
sign
Appendix I
LED fourth position
bit3-bit0
Accelerating
A
1
running
Decelerating
D
2
running
running in a
E
3
even speed
S
0
stop
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