6
-16
n
DC
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
n
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 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)
Содержание SYSDRIVE 3G3RV
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