YASKAWA iQpump Micro CIMR-PW Series User Manual page 138

5.2 b: Application
Setting 0: No Decimal Places
Setting 1: One Decimal Place
Setting 2: Two Decimal Places
Setting 3: Three Decimal Places
b5-40: Frequency Reference Monitor Content During PID
n
Sets the content on the frequency reference monitor display (U1-01) when PID control is active.
No.
b5-40 Frequency Reference Monitor Content During PID
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.
b5-47: Reverse Operation Selection 2 by PID Output
n
Reverses operation selection when b5-01 is set to 3 or 4.
No.
b5-47
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/b6-02: Dwell Reference/Time at Start
n
b6-01 sets the frequency that is kept for the time set in b6-02 during acceleration.
No.
b6-01
b6-02
138
Name
Name
Reverse Operation Selection 2 by PID Output
OFF
Run Command
Output Frequency
Figure 5.22 Dwell Function at Start and Stop
Name
Dwell Reference at Start
Dwell Time at Start
ON OFF
b6-01
b6-03
b6-02 b6-04
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
Setting Range
0 or 1
Setting Range
0 or 1
Setting Range
0.0 to 400.0 Hz
0.0 to 10.0 s
Default
0
Default
1
Default
0.0 Hz
0.0 s