Yaskawa Z1000 AC Drive HVAC User Manual
Page 125
Output frequency when
Stop command was entered
100%
(Maximum output
frequency)
10%
DC Injection braking time
b2-04×10
b2-04
Figure 4.16 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 with Timer
When the Run command is removed, the drive will turn off its output and the motor will coast to stop. The drive will not start
if a Run command is input before the time t (C1-02) has expired. Cycle the Run command that was activated during time t
after t has expired to start the drive.
Drive output shut off
Run wait time t
Run command
Output
frequency
ON
ON
ON
OFF
OFF
Figure 4.17 Coast with Timer
The 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
was entered
Run wait time t
Active deceleration time
Min Baseblock Time (L2-03)
Figure 4.18 Run Wait Time Depending on Output Frequency
n
C1-01 to C1-04: Accel, Decel Times 1 and 2
Four different sets of acceleration and deceleration times can be set in the drive by digital inputs, motor selection, or switched
automatically.
Acceleration time parameters always set the time to accelerate from 0 Hz to the maximum output frequency (E1-04).
Deceleration time parameters always set the time to decelerate from maximum output frequency to 0 Hz. C1-01 and C1-02
are the default active accel/decel settings.
4.7 Basic Drive Setup Adjustments
YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual
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4
Start-Up Programming & Operation