YASKAWA Z1000 User Manual page 125

Ac drive for hvac fan and pump
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Note:
If an overcurrent (oC) fault occurs during DC Injection Braking to Stop, increase the momentary power loss 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.
The wait time t is determined by the output frequency when the Run command is removed and by the active deceleration time.
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.
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
DC Injection braking time
b2-04×10
b2-04
Output frequency when
10%
Stop command was entered
Figure 4.16 DC Injection Braking Time Depending on Output Frequency
Run command
ON
Output
frequency
Figure 4.17 Coast with Timer
Run wait time t
Active deceleration time
Momentary Power Loss
Minimum Baseblock
Time (L2-03)
Min output
frequency
Figure 4.18 Run Wait Time Depending on Output Frequency
4.7 Basic Drive Setup Adjustments
100%
(Maximum output
frequency)
OFF
ON
OFF
ON
Drive output shut off
Run wait time t
100%
Output frequency
(Max output
when Stop command
frequency)
was entered
4
125

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