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Output frequency when
Stop command was entered
100%
(Maximum output
frequency)
10%
DC Injection braking time
b2-04
×
10
b2-04
Figure 5.7 DC Injection Braking Time Depending on Output Frequency
Note:
If an overcurrent (oC) fault occurs during DC Injection Braking to stop, lengthen the minimum baseblock time (L2-03) until the fault no
longer occurs.
Setting 3: Coast to Stop with Timer
When the Run command is removed, the drive will turn off its output and the motor will coast to stop. If a Run command is
input before the operation wait time
t
expires, the drive will not rotate the motor and the Run command will need to be cycled
before operation can occur.
Operation Wait Time t
Run Command
Output Frequency
ON
ON
ON
OFF
OFF
Drive output voltage
interrupted
Figure 5.8 Coast to Stop with Timer
The operation wait time
t
is determined by the output frequency when the Run command is removed and by the active
deceleration time.
Min. output
frequency
100%
(Max. output
frequency)
Output frequency
when Stop command
is entered
Operation wait time t
Selected
decel time
Minimum
Baseblock Time
(L2-03)
Figure 5.9 Operation Wait Time Depending on Output Frequency
n
b1-04: Reverse Operation Selection
For some applications, reverse motor rotation is not appropriate and may even cause problems (e.g., air handling units, pumps,
etc.). Setting parameter b1-04 to 1 instructs the drive to ignore any Reverse run commands.
No.
Parameter Name
Setting Range
Default
b1-04
Reverse Operation Selection
0 or 1
0
Setting 0: Reverse Operation Enabled
Possible to operate the motor in both forward and reverse directions.
5.2 b: Application
126
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual