35
Zikodrive Motor Controllers, Unit 4B, Top Land Country Business Park, Cragg Vale, Hebden Bridge, West Yorkshire,
UK, HX7 5RW
–
www.Zikodrive.com
- +44 (0)333 123 1730
READ_***_CUR formula for Precision Mode:
Current (A) = (Vs x DATA)/(Rm x 256)
Where DATA is the value inserted into one of the current registers.
Vs is the supply voltage applied to the ZikoDrive controller.
Rm is the Motor Phase resistance (can be found on the motor manufacturers datasheet)
Example 20 -
READ_ACC_CUR (Precision Mode)
From Master
0x7A 0x64 0x01 0x11 0x05
0xE8
From ZikoDrive
0x7A 0x64 0xBB 0x05 0x29 0x16
0x7A & 0x64 =
Header, ASCII code ZD
0xBB
=
Device Address, Set as 0xBB as default
0x05
=
Register Address, READ_PAR
0x29
=
Data
0x16
=
CheckSum
Assuming we are running on 24V with a motor phase resistance of 1.1 Ohms
0x29 in Hexadecimal gives 41 in Decimal.
Vs x 41 = 24 x 41 = 984
Rm x 256 = 1.1 x 256 = 281.1
984 / 281.1 = 3.5A
