Address List - Delta Electronics AC Motor Drive VFD-VE Series User Manual

Chapter 4 Parameters|
transmitting the CRC value in the message, the upper and lower bytes of the CRC value must be
swapped, i.e. the lower order byte will be transmitted first.
The following is an example of CRC generation using C language. The function takes two arguments:
Unsigned char* data
Unsigned char length
The function returns the CRC value as a type of unsigned integer.
Unsigned int crc_chk(unsigned char* data, unsigned char length){
int j;
unsigned int reg_crc=0xFFFF;
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;
}

3.5 Address list

The contents of available addresses are shown as below:
Content
AC drive
Parameters
Command
Write only
Command
Write only
4-144
a pointer to the message buffer
the quantity of bytes in the message buffer
Address
GG means parameter group, nn means parameter number,
for example, the address of Pr 4-01 is 0401H. Referencing to
GGnnH chapter 5 for the function of each parameter. When reading
parameter by command code 03H, only one parameter can
be read at one time.
2000H Bit 0-3
Bit 4-5
2000H
Bit 6-7
Bit 8-11
Bit 12
Bit 13~14
Bit 15
2001H Frequency command
Function
0: No function
1: Stop
2: Run
3: Jog + Run
00B: No function
01B: FWD
10B: REV
11B: Change direction
00B: 1st accel/decel
01B: 2nd accel/decel
10B: 3rd accel/decel
11B: 4th accel/decel
Represented 16 step speeds.
0: No comm. multi step speed or accel/decel
time
1: Comm. multi step speed or accel/decel time
00B: No function
01B: operated by digital keypad
02B: operated by Pr.00-21 setting
03B: change operation source
Reserved
Revision August 2008, 03VE, SW V2.04