Stopping Methods
6
-
13
Using the DC Injection Brake
Set parameter b2-03 to apply DC injection to the motor, before it starts to accelerate. Applying DC injection
at start will stop the motor before starting, if it was coasting through inertia or wind mill effect.
Set b2-03 to 0 to disable the DC injection brake at start.
Set the DC injection brake current using b2-02.
Related Parameters
Inputting the DC Injection Brake Command from Control Circuit Terminals
If you set a multi-function contact input terminal (H1-
) to 60 (DC injection brake command), you can
apply the DC injection brake to the motor by turning ON the terminal for which the DC injection brake com-
mand has been set, when the Inverter is being stopped.
The time chart for the DC injection brake is shown below.
Fig 6.16 DC Injection Brake Time Chart
Param-
eter-
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Access
Level
LCD Display
b2-02
DC injection braking current
Set the DC Injection Braking Current as a percentage of
the Inverter rated current.
0 to
100
50%
No
A
DCInj Current
b2-03
DC injection braking time at
start
Used to set the time to perform DC injection braking at
start.
Used to stop coasting motor and restart it. When the set
value is 0, DC injection braking at start is not performed.
0.00
to
10.00
0.00 s
No
A
DCInj Time@Start
If you input the DC injection brake command from an external terminal or if the run command
and jog command are input, the DC injection brake will be disabled and operation will resume.
DC injection brake command
FRUN
Output frequency
DC injection brake
DC injection brake
E1-09
b2-01