6-10
Stopping Methods
This section explains methods of stopping the Inverter.
îš‹ Selecting the Stopping Method when a Stop Command is Sent
There are four methods of stopping the Inverter when a Stop Command is sent:
• Deceleration to stop
• Coast to stop
• DC braking stop
• Coast to stop with timer
Set constant b1-03 to select the Inverter stopping method. A DC braking stop and coasting to a stop with a
timer cannot be set for flux vector control.
îš„Related Constants
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
Display
V/f
V/f
with
PG
Open-
loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2
b1-03
Stopping
method
selection
Select stopping method when Stop Com-
mand is sent.
0: Deceleration to stop
1: Coast to stop
2: DC injection braking stop (Stops
faster than coast to stop, no
regenerative operation.)
3: Coast to stop with timer (Run Com-
mands are disregarded during
deceleration.)
0 to 3* 0 No Q Q Q Q Q
Stopping
Method
b1-05
Operation
selection
for setting
E1-09 or
less
Used to set the method of operation
when the frequency reference input is
less than the minimum output frequency
(E1-09).
0: Run at frequency reference (E1-09 not
effective).
1: STOP (Frequencies below E1-09 in
the coast to stop state.)
2: Run at min. frequency.
(E1-09)
3: Run at zero-speed (Frequencies below
E1-09 are zero)
0 to 3 0 No No No No A No
Zero-Speed
Oper
b2-01
Zero-speed
level (DC
injection
braking
starting fre-
quency)
Used to set the frequency which starts
DC injection braking in units of Hz when
deceleration to stop is selected.
When b2-01 is less than E1-09, E1-09
becomes the DC injection braking start-
ing frequency.
0.0 to
10.0
0.5 Hz No A A A A A
DCInj Start
Freq
b2-02
DC injec-
tion brak-
ing current
Sets the DC injection braking current as a
percentage of the Inverter rated current.
0 to
100
50% No A A A No No
DCInj Cur-
rent
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