Operation
and
Display
VDF730
User
Manual
-
58
-
In
the
preceding fgure
,
SB1 must
stay ON
during normal start and running
.
The AC
drive stops immediately after SB1 becomes OFF
.
The signals from SB2 and SB3
become
valid
once
the
two
buttons
become
ON
.
The
running state
of
the
AC drive
is
determined
by
the
fnal
actions
on
the
three
buttons
.
•
2
:
Communication
control
The VDF730 provides the RS485 communication port for interaction with the host
computer
(
PC or PLC
).
You can set the running command and function codes
,
and
acquire
the
working
state
and
fault
information
of
the
AC
drive
through
communication
.
Set
P0
-
00
to
2
.
Then
,
you
can
start
or
stop
the
AC
drive
in
communication
mode
.
The
following
fgure
shows
the
setting
method
.
Figure
4
-
7
Setting
for
start
/
stop
using
the
communication
control
mode
Host
computer
PA
-
00
:
Baud
rate
PA
-
01
:
Data
format
PA
-
02
:
Local address
PA
-
03
:
Response
delay
PA
-
04
:
Communication
timeout
The
communication
setting in the AC drive
must be consistent with
that
in the host computer
.
P0
-
00
=
2
Running
command
485
+
485
-
RS485
VDF730
2000 h
When
PA
-
04
is
set
to
a
non
-
zero
number
,
the
function
of
automatic
AC
drive
stop
upon
communication
timeout
is
enabled
.
This
prevents
uncontrollable
AC
drive
running
due
to
faults
of
the
communication
cable
or
the
host
computer
.
The
communication
port
of
the AC drive supports
the
Modbus
-
RTU
protocol
,
and
the
communication is implemented only when the host computer supports the Modbus
-
RTU
master
station
protocol
.
4
.
4
.
2
Start
Mode
The VDF730 supports two start modes
,
namely
,
direct start and rotational speed tracking
restart
,
set
in
P4
-
00
.
•
P4
-
00
=
0
(
direct
start
)
It
is
applicable
to
small
-
inertia
load
.
The
frequency
curve
in
this
mode
is
shown
in
the
following
fgure
.
"
DC
braking
"
before
the
start
is
applicable
to
drive
of
load
such
as
elevator
and
crane
.
"
Startup frequency
"
is applicable
to
drive
with
burst
start under start torque
,
such as
cement
mixer
.
Содержание VDF730 Series
Страница 1: ...VDF730 Series...
Страница 7: ......
Страница 8: ...1 Safety Information and Precautions...
Страница 15: ...Safety Information and Precautions VDF730 User Manual 14...
Страница 16: ...2 Product Information...
Страница 30: ...3 Mechanical and Electrical Installation...
Страница 51: ...Mechanical and Electrical Installation VDF730 User Manual 50...
Страница 52: ...4 Operation and Display...
Страница 75: ...Operation and Display VDF730 User Manual 74...
Страница 76: ...5 Function Code Table...
Страница 97: ...Function Code Table VDF730 User Manual 96...
Страница 98: ...6 Description of Function Codes...
Страница 153: ...Description of Function Codes VDF730 User Manual 152...
Страница 154: ...7 EMC...
Страница 158: ...8 Troubleshooting...
Страница 165: ...Troubleshooting VDF730 User Manual 164...
