MD280/MD280N User Manual Parameter Description
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switching the rotary direction through adjusting any two lines of the motor
(U, V and W). The changed direction is still the forward running direction of
the inverter.
When it needs to change the rotary direction of the motor, it can modify this
parameter rather than adjust the wiring of the motor.
Caution: When the function code is restored to the factory default value,
this parameter value is restored to 0, which shall be used prudently in the
applications where the motor rotary direction is not allowed to change.
Speed-up/speed-down
reference frequency
Factory
default value
0
0 Maximum frequency
F0-13
Setup value
1 Setting frequency
When it’s selected to 0, the speed-up time means the time needed for the
inverter speeds up from 0Hz to the maximum frequency, speed-down time
means the time needed for the inverter speeds up from 0Hz to setting
frequency,speed-down time means the time needed for the inverter speeds
down from setting frequency to 0Hz.
Frequency UP/DOWN
reference upon running
Factory defult
value
0
0 Running frequency
F0-14
Setup
range
1 Setting frequency
When it’s selected to 0 (running frequency), it means the keyboard or the
terminal of UP / DOWN can be changed under the current operating
frequency of the inverter.
When it’s selected 1 (running frequency), it means the keyboard or the
terminal of UP / DOWN can be changed under the current operating
frequency of the inverter.
Auxiliary Frequency
source Y selection
Factory default
value
0
0
Digital setup(UP and DOWN
adjustment)
1 AI1
2 AI2
3
PULSE setup (Dl5)
4 MS speed
F0-15
Setup range
5 PLC
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