KEB COMBIVERT M4 Instruction Manual page 68

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Operating of the unit
DC-braking
Braking time
GB - 30
With DC-braking the motor is not decelerated by the ramp. Quick braking is
caused by D.C. voltage, which is applied onto the motor winding. This parameter
determines how the DC-braking is triggered.
V
a
u l
e
A
t c
v i
t a
o i
n
0
D
C
b -
a r
k
n i
g
d
e
1
D
C
b -
a r
k
n i
g
t a
0
H
. z
B
a r
k
n i
g
f o
i d
e r
t c
o i
n
o
r f
2
D
C
b -
a r
k
n i
, g
a
s
B
a r
k
n i
g
i t
m
e
d
3
D
C
b -
a r
k
n i
, g
a
s
i t
m
e
d
e
p
e
n
d
e
t n
4
D
C
b -
a r
k
n i
g
t a
f
e r
q
u
e
n
y c
g
o
e
5
D
C
b -
a r
k
n i
, g
w
6
D
C
b -
a r
k
n i
, g
w
7
D
C
b -
a r
k
n i
, g
w
B
a r
k
n i
g
i t
m
e
d
(
t a
e v
s r
o i
n
S
=
8
D
C
b -
a r
k
n i
, g
a
s
(
t a
e v
s r
o i
n
S
=
9
D
C
b -
a r
k
n i
g
a
t f
o
n
C
P
2 .
. 1
Factory setting:
Note:
Customer adjustment:
The braking time is evaluated depending on CP.20 as follows:
- entered time = braking time
- entered time relates to 100 Hz and decreases/increases
proportionally to the real frequency.
Adjustment range:
Resolution:
Factory setting:
Customer adjustment:
Calculation of the braking time:
a
i t c
a v
e t
d
s
w
c t i
h
o
f f
h t
e
i d
e r
t c
o i
n
i t
m
e
s i
d
e
p
e
n
d
e
t n
f o
C
t o
t a
o i
. n
s
o
o
n
a
s
p
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s
e
t t
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g
f o
e
p
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n
d
e
t n
o
n
h t
e
e r
a
f l
e r
s
o
o
n
a
s
h t
e
i d
e r
t c
o i
n
o
n
h t
e
e r
a
f l
e r
q
u
e
n
c
. y
s
w
c t i
h
o
f f
h t
e
i d
e r
t c
o i
n
s
b
e
o l
w
4
H
. z
h
e
n
h t
e
e r
a
f l
e r
q
u
e
n
y c
g
h
e
n
h t
e
s
t e
a v
u l
e
g
o
e
s
h
e
n
n i
p
t u
3 I
t (
r e
m
n i
l a
X
e
p
e
n
d
e
t n
o
n
h t
e
e r
a
f l
e r
a v
u l
e
0 „
. ) "
o l
n
g
a
s
n i
p
t u
3 I
t (
r e
m
n i
a v
u l
e
0 „
. ) "
r e
s
w
c t i
h
n i
g
h t
e
m
o
d
l u
t a
7
Enter-Parameter
_______
0.00...100 s
0.01 s
10 s
_______
CP.21* f
real
=
t
B
real
100 Hz
o
r f
t o
t a
o i
n
a
n
d
n i
e r
a
c
h
P
2 .
1
r o
u
n
l i t
h t
e
n
e
t x
p
e r
i d
e r
t c
o i
n
o
r f
t o
t a
o i
n
s i
a
q
u
e
n
c
. y
o
r f
t o
t a
o i
n
c
h
a
n
g
e
. s
B
a r
o
r f
t o
t a
o i
n
a
n
d
h t
e
e r
l a
o
e
s
b
e
o l
w
4
H
. z
b
e
o l
w
4
H
. z
1
6 .
V /
e
s r
o i
n
C
)
s i
s
w
c t i
q
u
e
n
y c
l a
X
1
6 .
V /
e
s r
o i
n
C
)
s i
s
o i
. n
b
a r
k
n i
g
i t
m
e
s i
d
e
f
real
f
100 Hz
t
Breal
f
ist
t
B ist
n i
g
s
e
t t
n i
g
b
s
e
n
. t
k
n i
g
h
e
. d
w
c t i
h
e
d
p
e
n
d
e
t n
t
CP.21

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