MD380 User Manual Desc
ription of Function Codes
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5: Multi-reference
If the voltage source is multi-reference, parameters in group F4 and FC must be set to
determine the corresponding relationship between setting signal and setting voltage.
100.0% of the multi-reference setting in group FC corresponds to the rated motor
voltage.
6: Simple PLC
If the voltage source is simple PLC mode, parameters in group FC must be set to
determine the setting output voltage.
7: PID
The output voltage is generated based on PID closed loop. For details, see the
description of PID in group FA.
8: Communication reference
The output voltage is set by means of communication.
The voltage source for V/F separation is set in the same way as the frequency source. For
details, see F0-03. 100.0% of the setting in each mode corresponds to the rated motor
voltage. If the corresponding value is negative, its absolute value is used.
Function Code Parameter Name Setting Range Default
F3-15 Voltage rise time of V/F separation 0.0–1000.0s 0.0s
F3-16 Voltage decline time of V/F separation 0.0–1000.0s 0.0s
F3-15 indicates the time required for the output voltage to rise from 0 V to the rated motor
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F3-16 indicates the time required for the output voltage to decline from the rated motor
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Figure 6-6 Voltage of V/F separation
t1 t2
Actual voltage
rising time
Set voltage rising time
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Rated motor voltage
Target voltage
Set voltage declining time
Actual voltage
declining time
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