Toshiba TOSVERT VF-nC3E - DC Braking; DC Braking Starting Frequency; DC Braking Current; DC Braking Time

E6582233
F-19
6
6.8 DC braking
 : DC braking starting frequency
 : DC braking current
 : DC braking time
 Function
A large braking torque can be obtained by applying a direct current to the motor. These parameters
set the direct current to be applied to the motor, the application time and the starting frequency.
[Parameter setting]
Title Function Ad
j
ustment ran
g
e Default settin
g

DC brakin
g
startin
g
frequenc
y
0.0-
(
Hz
)
0.0
 DC brakin
g
curren
t
0.0-100
(
%
)
/
(
A
)
50

DC brakin
g
time 0.0- 25.5
(
s
)
1.0
Time [s]
DC braking starting frequency

DC braking current

DC braking time

Output frequency [Hz]
DC braking
Operation signal (F-CC)
ON
OFF
Output current [A]
0
0
Set frequency
Note1: During DC braking, the overload protection sensitivity of the inverter increases. The DC braking
current may be adjusted automatically to prevent tripping.
Note 2: During DC braking, the carrier frequency becomes the setting of parameter
f300 (PWM carrier
frequency).
Note 3: DC breaking can be done by using terminal input. Input terminal 22: Assign DC braking command
(23 is reverse).
DC braking is applied while the terminal is ON, regardless of the
,  settings. Even if
the terminal is OFF, DC braking is applied only for the
 time.
The amount of DC braking depends on the
 settings.