WEG CFW100 Programming Manual page 79

P300 – DC Braking Time at Stop
Adjustable
0.0 to 15.0 s
Range:
Properties:
Description:
DC Braking duration at the stop.
dead time for the de-magnetization of the motor can be observed. This time is proportional to the frequency at
the moment of the injection of direct current.
Output
P300
frequency
P301
0 V
DIx - Run/Stop
Open
(a) Run/Stop
During the braking process, if the inverter is enabled, the braking is interrupted and the inverter will start
operating normally.
ATTENTION!
The DC Braking can continue acting even if the motor has already stopped. Be careful with the
thermal dimensioning of the motor for short-period cyclic braking.
P301 – Frequency to Begin DC Braking at Stop
Adjustable 0.0 to 300.0 Hz
Range:
Properties:
Description:
This parameter establishes the initial point to apply the DC Braking at the stop when the inverter is disabled by
ramp, as per Figure 11.8 on page
P302 – Voltage Applied to the DC Braking
Adjustable 0.0 to 100.0 %
Range:
Properties:
Description:
This parameter sets the DC voltage (DC Braking torque) applied to the motor during the braking.
The setting must be done by gradually increasing the value of P302, which varies from 0.0 to 100.0 % of the
rated braking voltage, until the desired braking is obtained.
Functions Common to All the Control Modes
Figure 11.8 on page 11-9
Injection of
DC current
Output
frequency
Time
DIx - General Enable
Figure 11.8: (a) and (b) Actuation of DC Braking
11-9.
Return Advance
shows the braking behavior at the stop, where the
P300
Dead
time
0 V
Open
(b) General Enable
Factory
0.0 s
Setting:
Time
Factory 3.0 Hz
Setting:
Factory 20.0 %
Setting:
CFW100 | 11-9
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