range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
b1-08 RUN CMD at
PRG
0, 1 --- 0 Advanced
Explanation of Settings
Setting Description
0 The run command in any mode other than drive mode is disabled. (The Inverter will start
operating with the run command input again in drive mode.)
1 A run command is enabled. (The Inverter will start operating according to the present run
command in drive mode or any other mode.)
Note The
run command is disabled if the Digital Operator is specified
with parameter b1-02
set to 0.
Note If
the parameter b1-08
is set to 1, the Inverter will start operating regardless of whether parame
-
ters
are adjusted in program mode or not. T
ake necessary safety measures to prevent accidents.
H Setting DC Injection Braking (b2-01 to 04)
The DC injection braking function decelerates by applying a DC magnetic field to the motor.
DC injection braking time at start:
This
is ef
fective for temporarily
stopping and then restarting, without regenerative processing, a mo
-
tor coasting by inertia.
DC injection braking time at stop:
When
there is a large load, this
is used to prevent coasting by inertia when the motor is not complete
-
ly stopped by normal deceleration. The stopping time can be shortened by lengthening the DC injec
-
tion braking time or increasing the DC injection braking current.
Parameter Display name Setting Units Default
Valid access levels
number
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
b2-01 DC Inj Start Freq 0.0 to
10.0
Hz 0.5 Basic or Advanced
b2-02 DC Inj Current 0 to 100 % 50 Basic or Advanced ---
b2-03 DC Inj
Time@Start
0.0 to
10.00
Sec 0.00 Basic or Advanced
b2-04 DC Inj
Time@Stop
0.0 to
10.00
Sec 0.50 Basic or Advanced
These parameters cannot be changed during operation.
• For the excitation level (b2-01), set the frequency for beginning DC injection braking at the time of
deceleration.
If the excitation level is lower than the minimum output frequency (E1-09), the DC injec
-
tion braking will begin from the minimum output frequency.
Note 1. In flux vector control mode, DC injection braking becomes the initial excitation starting fre-
quency
at the time of deceleration. In that case, braking starts from the excitation level regard
-
less of the minimum output frequency setting.
Note 2. The
excitation level is also used as the operating frequency for the zero servo function (for flux
vector control only).
Advanced Operation Chapter
6
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