Specifications

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3. Select Stopping Method
Select Stopping Method
Stopping method selection b1-03
To stop the inverter when a stop command is given, select one
of the following four methods according to the application.
The DC injection braking time is as follows, according
to the output frequency when stop command is input.
However, when using vector control with PG, Entire area
DC injection braking at stop (setting=3) and Coasting to stop
with timer (setting=4) cannot be selected.
（1）Deceleration stop
By setting b1-03 to 0, the motor decelerates to stop
according to the selected deceleration time.
When output frequency is less than b2-01 at
deceleration to a stop, DC injection braking is applied
for the time set to b2-04.
（4）Coasting to stop with timer
By setting b1-03 to 3, the inverter output voltage is shut
off at the same time as run command OFF and the
motor coasts to a stop. At this time, the run command is
disregarded until operation waiting time T elapses.
Note: When using vector control with PG, the stopping method varies
according to Operation selection for setting of min. output
frequency (E1-09) or less (b1-05).
（2）Coasting to stop
By setting b1-03 to 1, the inverter output voltage is
shut off at the same time as run command OFF. The
motor coasts to a stop in the deceleration ratio suitable
for the inertia and machine loss including the load.
Restart is accepted immediately after the run
command is turned OFF, but restart command during
rotation of the motor may cause alarms for OV or OC.
Setting
0
1
2
3
Deceleration stop
Coasting to stop
Entire area DC injection braking at stop
Coasting to stop with timer
Stopping Method
Output
Frequency
Forward (Reverse)
Run Command
ON
Acceleration Time 1
(C1-01)
Deceleration Time 1
(C1-02)
Deceleration Time 1
(C1-02)
Min. Output Frequency
(Frequency at DC Injection
Braking Start)
b2-01 (Factory Setting: 0.5 Hz)
Time
DC Injection Braking Time
to Stop (b2-04)
(Factory Setting: 0.5 s)
Example when Accel/Decel Time 1 is Selected
Output Frequency
Forward (Reverse)
Run Command
ON ON ON
Coasting
Deceleration Time 1
(C1-02)
Time
Acceleration
Time 1
(C1-01)
The Run command is disregarded during deceleration time.
Example when Accel/Decel Time 1 is Selected
Operation waiting time T is as follows according to the
output frequency and deceleration time at run
command OFF.
Operation Waiting Time T
Deceleration
Time
Output Frequency at
Stop Command Input
100% (Max. Output Frequency)Min. Output Frequency
Min. Baseblock
Time (L2-03)
DC Injection
Braking Time
10 ％ Speed 100 ％ Speed
DC Injection Braking
Time at Stop （b2-04）
Output Frequency when Run Command in Turned OFF
b2-04×10
Output Frequency
Forward (Reverse) Run
Command
Acceleration Time 1
(C1-01)
Deceleration Time 1
(C1-02)
Time
Motor Coasting
ON
Example when Accel/Decel Time 1 is Selected
Forward (Reverse) Run
Command
Output Frequency
Inverter Output
Shut OFF
DC Injection
Braking Time
ON
OFF
Min. Baseblock
Time (L2-03)
（3）Entire area DC injection braking to stop
By setting b1-03 to 2, the inverter stops by applying
DC injection braking when L2-03 (minimum baseblock
time) elapses after turning OFF the run command.
Cont
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