YASKAWA Varispeed f7

Stopping Methods
6-17
Stopping Methods
This section explains methods of stopping the Inverter.
 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.
Related Constants
Con-
stant
Number
Name Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
V/f
V/f
with
PG
Open
Loop
Vec-
tor
Flux
Vec-
tor
b1-03
Stopping
method selec-
tion
Used to set the stopping method
used when a Stop Command is
input.
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 Commands are
disregarded during
deceleration.)
0 to 3 * 0 No Q Q Q Q 182H
b1-05
Operation
selection for
setting E1-09
or less
Used to set the method of opera-
tion when the frequency refer-
ence 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 (Frequen-
cies below E1-09 are zero)
0 to 3 0 No No No No A 184H
b2-01
Zero-speed
level (DC
injection
braking start-
ing 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 is used to set the starting
frequency for the DC injection
braking.
In flux vector control, b2-01 is
used to set the starting frequency
for the zero-speed control.
0.0 to
10.0
0.5 Hz No A A A A 189H
A DC braking stop and coasting to a stop with a
timer cannot be set for flux vector control.