3 Protocol Description of the MD38CAN2
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3.3 Parameter Operation of AC Drive
1) AC drive parameter mapping
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AC drive parameter address
The AC drive parameter addresses are classied into parameter addresses and non-
parameter addresses. For details, see the related description in the section of the
Modbus communication protocol in the MD380 Series High-Performance AC Drive User
Manual.
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Mapping description
The AC drive parameter addresses map to the range of 0x2000 to 0x20FF. The object
dictionary subindex can be obtained by adding one to the parameter number. For
example, if the AC drive parameter is F0-03, the object dictionary index is 0x20F0, and
the subindex is 0x04.
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Mapping description of AC drive parameters
The MD380 parameters are divided into three large groups, groups F0 to FF, groups A0
to AF, and groups U0 to UF.
The following table lists the mapping addresses at the read parameter operation.
Parameter Group CANopen Address Index
F0 to FF 0x20F0 to 0x20FF
A0 to AF 0x20A0 to 0x20AF
U0 to UF 0x2070 to 0x207F
The following table lists the mapping addresses at the read EEPROM operation.
Parameter Group CANopen Address Index
F0 to FF 0x20F0 to 0x20FF
A0 to AF 0x20A0 to 0x20AF
The following table lists the mapping addresses at the read RAM operation.
Parameter Group CANopen Address Index
F0 to FF 0x2000 to 0x200F
A0 to AF 0x2040 to 0x204F
You can obtain the CANopen subindex by adding one to the parameter index.
Parameter Group Index CANopen Subindex
0x0 to 0xFE 0x1 to 0xFF
Take the parameter F0-17 (Acceleration time 1) as an example.
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