Setting 0: No Decimal Places
Setting 1: One Decimal Place
Setting 2: Two Decimal Places
Setting 3: Three Decimal Places
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b5-40: Frequency Reference Monitor Content During PID
Sets the content on the frequency reference monitor display (U1-01) when PID control is active.
No. Name Setting Range Default
b5-40 Frequency Reference Monitor Content During PID 0 or 1 0
Setting 0: Frequency Reference after PID
Monitor U1-01 displays the frequency reference increased or reduced for the PID output.
Setting 1: Frequency Reference
Monitor U1-01 displays the frequency reference value.
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b5-47: Reverse Operation Selection 2 by PID Output
Reverses operation selection when b5-01 is set to 3 or 4.
No. Name Setting Range Default
b5-47 Reverse Operation Selection 2 by PID Output 0 or 1 1
Setting 0: Zero Limit when PID Output is a Negative Value
Setting 1: Reverse Operation when PID Output is a Negative Value (Zero Limit if the Reverse Operation Is Prohibited
by b1-04)
u
b6: Dwell Function
The reference hold or Dwell function is used to temporarily hold the output frequency at a set reference value, for a set time,
and then continue to ramp up or stop.
The Dwell at start function can be used when driving a permanent magnet motor in V/f Control, or a motor with a heavy
starting load. The pause in acceleration allows the PM motor rotor to align with the stator field of the motor, thus reducing the
starting current.
Dwell works as shown in the figure below.
Note: Using the Dwell function requires that the stopping method for the drive be set to “Ramp to Stop” (b1-03 = 0).
b6-01
b6-03
b6-02 b6-04
Run Command
Output Frequency
ON
OFFOFF
Figure 5.22 Dwell Function at Start and Stop
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b6-01/b6-02: Dwell Reference/Time at Start
b6-01 sets the frequency that is kept for the time set in b6-02 during acceleration.
No. Name Setting Range Default
b6-01 Dwell Reference at Start 0.0 to 400.0 Hz 0.0 Hz
b6-02 Dwell Time at Start 0.0 to 10.0 s 0.0 s
5.2 b: Application
138
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
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