5-12
îš„DC Injection Braking: b2
User constants for injection braking are shown in the following table.
Con-
stant
Number
Name
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
Control Methods
MEMO-
BUS
Regis-
ter
Page
Display
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2
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 becomes the DC
injection braking starting fre-
quency.
0.0 to
10.0
0.5 Hz No A A A A A 189H
6-12
6-145
DCInj Start
Freq
b2-02
DC injection
braking cur-
rent
Sets the DC injection braking
current as a percentage of the
Inverter rated current.
0 to
100
50% No A A A No No 18AH
6-12
6-16
DCInj Cur-
rent
b2-03
DC injection
braking time
at start
Used to set the time to per-
form DC injection braking at
start in units of 1 second.
Used to stop coasting motor
and restart it. When the set
value is 0, DC injection brak-
ing at start is not performed.
0.00
to
10.00
0.00 s No A A A A A 18BH
6-13
6-16
DCInj
Time@Start
b2-04
DC injection
braking time
at stop
Used to set the time to per-
form DC injection braking at
stop in units of 1 second.
Used to prevent coasting after
the Stop Command is input.
When the set value is 0.00,
DC injection braking at stop
is not performed.
0.00
to
10.00
0.50 s No A A A A A 18CH 6-13
DCInj
Time@Stop
b2-08
Magnetic flux
compensa-
tion volume
Sets the magnetic flux com-
pensation as a percentage of
the no-load current.
0 to
1000
0% No No No A No No 190H -
Field Comp
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