Description of Function Codes
- 236 -
Function Code Parameter Name Setting Range Default
A6-20
Jump point of AI3 input
corresponding setting
-100.0%–100.0% 0.0%
A6-21
Jump amplitude of AI3 input
corresponding setting
0.0%–100.0% 0.5%
The AI terminals (AI1 to AI3) of the MD380 all support the corresponding setting jump
function, which fixes the AI input corresponding setting at the jump point when AI input
corresponding setting jumps around the jump range.
For example, AI1 input voltage jumps around 5.00 V and the jump range is 4.90–5.10 V.
AI1 minimum input 0.00 V corresponds to 0.0% and maximum input 10.00 V corresponds to
100.0%. The detected AI1 input corresponding setting varies between 49.0% and 51.0%.
If you set A6-16 to 50.0% and A6-17 to 1.0%, then the obtained AI1 input corresponding
setting is xed to 50.0%, eliminating the uctuation effect.
Group A7: User Programmable Function
Group A8: Point-point Communication
Function Code Parameter Name Setting Range Default
A8-00 Point-point communication selection
0: Disabled
1: Enabled
0
It is used to decide whether to enable point-point communication.
Point-point communication indicates direct communication between two or more MD380
AC drives by using CANlink. The master gives target frequency or target torque to one or
multiple slaves according to its own frequency or torque signal.
If multiple AC drives are connected by using CANlink cards, the terminal resistor of the
CANlink card connected to the end AC drive shall be switched on.
If point-point communication is enabled, the CANlink communication addresses of the AC
drives are automatically matched without special setting.
The point-point communication rate is set in FD-00.
Function Code Name Setting Range Default
A8-01 Master and slave selection
0: Master
1: Slave
0
This parameter is used to determine whether the AC drive is master or slave.
At point-point communication, you only need to set the CANlink communication baud rate.
The communication addresses are allocated automatically based on whether the AC drive is
master or slave.
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