Function Application
‑572‑
Para.
Function
De
fault
Value Range
Description
F3‑16
Voltage
decline
time of V/f
separation
0.0s 0.0s to 1000.0s
Note: This
parameter
indicates the
time required
for the voltage
to change
from 0 V to the
rated motor
voltage.
This parameter indicates the time required
for the output voltage to decline from the
set V/f separation voltage to 0.
F3‑17
Stop mode
selection
for V/f
separation
0 0: Frequency
and voltage
decline to 0
independent
ly.
1: Frequency
declines after
voltage
declines to 0.
0: Frequency and voltage decline to 0
independently.
1: Frequency declines after voltage declines
to 0.
The voltage rise time of V/f separation is the time required for the output voltage to
increase from 0 to the rated motor voltage. It is t1 in the following figure.
The voltage decline time of V/f separation is the time required for the output voltage
to decline from the rated motor voltage to 0. It is t2 in the following figure.
Figure 3‑40 V/f separation curve
3.4.2 Output Current (Torque) Limit
During acceleration, operation at constant speed, or deceleration, if the current
exceeds the overcurrent stall action current (default: 150%, indicating 1.5 times the
rated AC drive current), the current limit mechanism is activated. In this case, the
output frequency decreases until the current drops below the overcurrent stall action