16
nDC
Braking
Stop
If
the
stop
command
is
input
(i.e.,
the
run
command
is
turned
OFF)
when
b1-03
is
set
to
2,
a
wait
is
made
for
the
time
set
in
L2-03
(Minimum
Baseblock
(BB)
Time)
and
then
the
DC
injection
brake
current
set
in
b2-02
is
sent
to
the
motor
to
apply
a
DC
injection
brake
to
stop
the
motor.
The
DC
injection
brake
time
is
determined
by
the
set
value
in
b2-04
and
the
output
frequency
when
the
stop
command
is
input.
Fig 6.17 DC Injection Braking (DB) Stop
nCoast
to
Stop
with
Timer
If
the
stop
command
is
input
(i.e.,
the
run
command
is
turned
OFF)
when
b1-03
is
set
to
3,
the
Inverter
output
is
interrupted
to
coast
the
motor
to
a
stop.
After
the
stop
command
is
input,
run
commands
are
ignored
until
the
time
T
has
elapsed.
The
time
T
depends
upon
the
output
frequency
when
the
stop
command
is
input
and
the
deceleration
time.
Fig 6.18 Coast to Stop with Timer
INFO
Lengthen the Minimum Baseblock Time (L2-03) when an overcurrent (OC) occurs during stopping.
Inverter output voltage interrupted
Output frequency
Run command
ON
OFF
Minimum baseblock
time (L2-03)
DC injection brake time
DC injection brake
10 100% (maximum output frequency)
Output frequency at
stop command input
DC injection brake time
b2
-
04 10
b2
-
04
Output
frequency
Run command
ON ON ON
OFF OFF
Inverter output voltage interrupted
Operation wait time T
100% (Maximum output frequency)Minimum output frequency
Output frequency at
stop command input
Operation wait time T
Deceleration time
(e.g., C1-02)
Minimum baseblock
time (L2-03)
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