Using The Dc Injection Brake - Omron SYSDRIVE RV Series User Manual

Coast 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 out-
put 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.
Run Command
Output
frequency
Inverter output voltage interrupted

Using the DC Injection Brake

Set parameter b2-03 to apply the DC injection braking current to the motor while it is coasting to a stop, to
stop the motor and then restart it.
Set b2-03 to 0 to disable the DC injection brake at start.
Set the DC injection brake current using b2-02. DC injection braking is used at startup for flux vector control
with the current set in E2-03 (Motor no-load current).
Related Parameters
Param-
eter
Number
DC injec-
tion brak-
ing current
b2-02
DCInj Cur-
rent
DC injec-
tion brak-
ing time at
start
b2-03
DCInj
Time@Start
-20
6
ON ON
OFF OFF
Operation wait time T
Fig 6.19 Coast to Stop with Timer
Name
Description
Display
Sets the DC injection brak-
ing current as a percentage
of the Inverter rated current.
The DC injection braking
current in flux control is
affected by any change to the
setting of E2-03.
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
braking at start is not per-
formed.
Operation wait time T
ON
Deceleration time
(e.g., C1-02)
Minimum baseblock
time (L2-03)
Minimum output frequency
Change
Setting Factory during
Range Setting Opera-
tion
0 to
50% No
100
0.00
to 0.00 s No
10.00
Output frequency at
Stop Command input
100% (Maximum output frequency)
Control Methods
Regis-
V/f Open Flux
ter
V/f with Loop Vec-
PG Vector tor
A A A No 18AH
A A A A 18BH