User Manual of A90 Series Inverter
166
If the free stop terminal has been set and enabled, the inverter will be immediately in
the free stop status. Even if this terminal is disabled, the inverter will not restart running.
Instead, the running command must be entered again to start the inverter.
Function
code
Function code name
Parameter description Unit
Default
setting
Attribute
F04.20
Starting frequency of DC
braking in stop
0.00 to maximum
frequency F00.16
Hz
0.00
○
F04.21
DC braking current in
stop
0.0 to 150.0 (100.0 =
rated current of motor)
%
100.0
○
F04.22
DC braking time in stop
0.00~30.00 0.00:
invalid
s
0.00
○
F04.23
Demagnetization time for
DC braking in stop
0.00 - 30.00
s
0.50
○
F04.20
: Set the starting frequency of DC braking in deceleration to stop. Once the
output frequency is less than the set frequency during deceleration stop, and the time of DC
braking for stop is not 0, DC braking for stop will be enabled.
F04.21
: Set different values to apply the torques of DC braking for stop.
F04.22
: Set the duration of DC braking for stop. If F04.22=0.00, DC braking for stop
will be invalid. When an external terminal sends a signal of DC braking for stop, the
duration of DC braking for stop will be larger of the valid time of the signal of DC braking
for stop from the external terminal and the set time of F04.22.
F04.23
: When the output frequency reaches the set value of F04.20 during
deceleration to stop, and the set time of F04.23 is up, DC braking will be enabled.
The process of DC braking for stop is shown in Fig. 7
-18.
Output
frequency
0
0
0
Motor
speed
Braking
current
Brake time
Time
Time
Time
Degaussing time
Output
frequency
0
0
0
Motor speed
Braking current
Brake time
Time
Time
Time
Degaussing time