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DC Injection Braking: b2
User parameters for injection braking are shown in the following table.
Parameter
Number
b2-01
b2-02
b2-03
b2-04
b2-08
-14
5
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Name
Description
Display
DC Injection
Sets the frequency at which
Braking Start
DC injection braking starts
Frequency
when ramp to stop
(b1-03 = 0) is selected.
If b2-01< E1-09, DC Injection
DCInj Start
braking starts at E1-09.
Freq
Note: Zero Speed restrictions
are active in Flux Vector Mode.
DC Injection
Sets the DC injection braking
Braking
current as a percentage of the
Current
Drive rated current.
Note: The DC excitation
current is determined by the
DCInj
setting in E2-03 when
Current
operating in flux loop vector
control mode.
DC Injection
Braking
Time/DC
Sets the time of DC injection
Excitation
braking at start in units of
Time at Start
0.01 seconds.
DCInj
Time@Start
DC Injection
Sets the time length of DC
Braking Time
injection braking at stop in
at Stop
units of 0.01 seconds.
1: When b1-03 = 2, actual
DC Injection time is
calculated as follows:
(b2-04) x 10 x
(OutputFreq) / (E1-04)
2: When b1-03 = 0, this
parameter determines the
amount of time DC
Injection is applied to the
DCInj
motor at the end of the
Time@Stop
decel ramp.
3: This should be set to a
minimum of 0.50 seconds
when using HSB. This will
activate DC injection during
the final portion of HSB and
help ensure that the motor
stops completely.
Magnetic
Sets the magnetic flux
Flux
compensation as a percentage
Compensation
of the no-load current value
Capacity
(E2-03).
Field Comp
Control Methods
Change
Setting
Factory
V/f
during
Range
Setting
V/f
with
Operation
PG
0.0
to
0.5Hz
No
A
10.0
0
to
50%
No
A
100
0.00
to
0.00 s
No
A
10.00
0.00
to
0.50 s
No
A
10.00
0
to
0%
No
No
No
1000
Open
Open
MODBUS
Loop
Flux
Loop
Register
Vector
Vector
Vector
1
2
A
A
A
A
189H
A
A
No
No
18AH
A
A
A
A
18BH
A
A
A
A
18CH
A
No
No
190H
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