Description of Function Codes
MD380 User Manual
- 226 -
When the AI1 input exceeds the limit, VDO1 becomes ON. At this moment, VDI1
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Err27 and stops.
Decided by A1-06
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the function that the AC drive automatically enters the running state after power-on,
perform the following setting:
1) Allocate VDI1 with function 1 ")orward RUN ()WD)" (A1-00 = 1).
2) Set A
1-05 to xxx1: The state of VDI1 is decided by A1-06.
3) Set A
1-06 to xxx1: VDI1 is valid.
4) Set )0-02 to 1: T
he command source to terminal control.
5) Set )8-18 to 0: Startup protection is not enabled.
When the AC drive completes initialization after power-on, it detects that VDI1 is valid
and VDI1 is allocated with the function of forward RUN. That is, the AC drive receives
the forward RUN command from the terminal. Therefore, The AC drive starts to run in
forward direction.
)unction Code Parameter Name Setting Range Default
A1-07 )unction selection for AI1 used as DI 0–59 0
A1-08 )unction selection for A
I2 used as DI 0–59 0
A1-09 )unction selection for A
I3 used as DI 0–59 0
A1-10 State selection for A
I used as DI
Unit's digit (AI1)
000
0: High level valid
1: Low level valid
Te
n's digit (AI2)
0, 1 (same as unit's digit)
Hundred's digit (AI3)
0, 1 (same as unit's digit)
The functions of these parameters are to use AI as DI. When AI is used as DI, the AI state
is high level if the AI input voltage is 7 V or higher and is low level if the AI input voltage is 3
V or lower. The AI state is hysteresis if the AI input voltage is between 3 V and 7 V. A1-10 is
used to determine whether high level valid or low level valid when AI is used as DI.
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The following figure takes AI input voltage as an example to describe the relationship
between AI input voltage and corresponding DI state.
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