VDF730
User
Manual
Desc
ription
of
Function
Codes
-
127
-
•
P4
-
12
(
Waiting
time
of
stop
DC
braking
)
When
the
running
frequency
decreases
to
the
initial
frequency
of
stop
DC
braking
,
the
AC
drive stops output for
a
certain period and
then
starts DC braking
.
This prevents
faults
such
as
overcurrent
caused
due
to
DC
braking
at
high
speed
.
•
P4
-
13
(
Stop
DC
braking
current
)
This
parameter
specifes
the
output
current
at
DC
braking
and
is
a
percentage
relative
to
the
base
value
.
•
P4
-
14
(
Stop
DC
braking
time
)
This
parameter
specifes
the
holding
time
of
DC
braking
.
If
it
is
set
to
0
,
DC
braking
is
cancelled
.
The
stop
DC
braking
process
is
shown
in
the
following
fgure
.
Figure
6
-
14
Stop
DC
braking
process
Time
(
t
)
Initialfrequencyof
stopDC braking
Time
(
t
)
Effective value of
output
voltage
Stop DC braking
RUN
command
Waiting timeof
stopDC braking
Stop DC
braking time
Output
frequency
(
Hz
)
Function
Code
Parameter
Name
Setting
Range
Default
P4
-
15
Brake
use
ratio
0
%–
100
%
100
%
It
is
valid
only
for
the
AC
drive
with
internal
braking
unit
and
used
to
adjust
the
duty
ratio
of
the
braking
unit
.
The
larger
the
value
of
this
parameter
is
,
the
better
the
braking
result
will
be
.
However
,
too
larger
value
causes
great
fuctuation
of
the
AC
drive
bus
voltage
during
the
braking
process
.
Group
P5
:
Auxiliary
Functions
Function
Code
Parameter
Name
Setting
Range
Default
P5
-
00
JOG
running
frequency
0
.
00
Hz
to
maximum
frequency
(
P0
-
04
)
2
.
00
Hz
P5
-
01
JOG
acceleration
time
0
.
0
–
300
.
0s
20
.
0s
Summary of Contents for VDF730 Series
Page 1: ...VDF730 Series...
Page 7: ......
Page 8: ...1 Safety Information and Precautions...
Page 15: ...Safety Information and Precautions VDF730 User Manual 14...
Page 16: ...2 Product Information...
Page 30: ...3 Mechanical and Electrical Installation...
Page 51: ...Mechanical and Electrical Installation VDF730 User Manual 50...
Page 52: ...4 Operation and Display...
Page 75: ...Operation and Display VDF730 User Manual 74...
Page 76: ...5 Function Code Table...
Page 97: ...Function Code Table VDF730 User Manual 96...
Page 98: ...6 Description of Function Codes...
Page 153: ...Description of Function Codes VDF730 User Manual 152...
Page 154: ...7 EMC...
Page 158: ...8 Troubleshooting...
