Stopping Methods
6-
15
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 deter-
mined by the set value in b2-04 and the output frequency when the Stop Command is input.
Fig 6.16 DC Injection Braking (DB) Stop
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.
Fig 6.17 Coast to Stop with Timer
After the Stop Command is input, Run Commands are ignored until the Minimum Baseblock Time (L2-03) has
elapsed.
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)
TOE-S616-60.1.book 15 ページ ２０１７年８月４日 金曜日 午後３時４１分
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