Delta Electronics VFD-M - Manual (Page 103)

Chapter 4 Parameters|
4-68 Revision May 2008, ME14, SW V3.04
while(length--){
reg_crc ^= *data++;
for(j=0;j<8;j++){
if(reg_crc & 0x01){ /* LSB(b0)=1 */
reg_crc=(reg_crc>>1) ^ 0xA001;
}else{
reg_crc=reg_crc >>1;
}
}
}
return reg_crc;
}
3.6 Address list:
The contents of available addresses are shown as below:
Content Address Functions
AC drive
Parameters
00nnH 00 means parameter group, nn means parameter number, for
example, the address of Pr.100 is 0064H. Referencing to
chapter 5 for the function of each parameter. When reading
parameter by command code 03H, only one parameter can be
read at one time.
Bit 0-1
00: No function
01: Stop
10: Run
11: Jog + Run
Bit 2-3 Reserved
Bit 4-5
00: No function
01: FWD
10: REV
11: Change direction
2000H
Bit 6-15 Reserved
2001H Freq. command
Bit 0 1: EF (external fault) on
Bit 1 1: Reset
Command
Read/Write
2002H
Bit 2-15 Reserved