Chapter 6 - Parameter Description [FU1]
6-12
FU1-20: Start Mode
FU1-21: Starting DC Magnetizing Time
FU1-22: Starting DC Magnetizing Value
Inverter holds the starting frequency for Starting DC
Magnetizing Time. It outputs DC voltage to the
motor for FU1-21 [Starting DC Magnetizing Time]
with the FU1-22 [Starting DC Magnetizing Value]
before accelerating.
Select the starting method of the inverter.
FU1-20
set data
Function description
0 Accel
Acceleration to start
(Factory default)
1 Dc-start
Inverter starts acceleration after
magnetizing DC current.
2
Flying-
start
Inverter starts RUN while a motor is
rotating.
1) The direction of Motor rotation and the command
should be set equal to optimum use of Flying-start function.
However, this function is effective with less than 50%
to rated rpm when direction of motor rotation and
reference command is opposite.
2) DC-start is disabled when FU1-21 or 22 is set to “0”.
3) DC-start is deactivated in Sensorless mode.
4) It is possible to occur No Motor Trip in case that there
is output phase loss when DC-start is operated
Inverter starts acceleration after FU1-21 [Starting DC
Magnetizing Time] while FU1-22 [Starting DC
Magnetizing Voltage] is operated.
Code LCD Display Default Setting
FU1-21 DcSt time 0 [sec] 0 ~ 60 [sec]
FU1-22 DcSt value 50 [%] 0 ~ 150 [%]
[ DC-start Operation]
FU1-22 [Starting DC Magnetizing Value] is the DC
Current amount applied to the motor and is set as percent
of FU2-43[Motor Rated Current].
Note
: Do not set FU1-22 [Starting DC Magnetizing Value]
higher than Inverter Rated Current. Otherwise, Motor
Overheating or Overload Trip may occur.
FU1
►
DcSt value
22 50 %
50 22
Factory Default: 50 % 50
FU1
►
DcSt time
21 0.0 sec
0.0 21
Factory Default: 0.0 sec 0.0
Output Frequency
Time
FX-CM
ON
Output Voltage
Time
Time
Run Command
FU1-22
FU1-21
T1
T1: FU1-21 [Starting DC Magnetizing Time]
D1: FU1-22 [Starting DC Magnetizing
value]
Output Current
Time
D1
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