Fault Funning Status; Crc Checkup Sum - Powtran PI8600 Series User Manual

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
125
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