Yaskawa iQpump Micro User Manual
Page 128
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b5-03: Integral Time Setting (I)
Sets the time constant used to calculate the integral of the PID input. The shorter the integral time set to b5-03, the faster the
offset will be eliminated. If the integral time is set too short, however, overshoot or oscillation may occur. To turn off the
integral time, set b5-03 to 0.00.
No.
Name
Setting Range
Default
b5-03
Integral Time Setting (I)
0.0 to 360.0 s
1.0 s
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b5-09: PID Output Level Selection
Reverses the sign of the PID controller output signal. Normally a positive PID input (feedback smaller than setpoint) leads to
positive PID output.
No.
Parameter Name
Setting Range
Default
b5-09
PID Output Level Selection
0, 1
0
Setting 0: Direct Acting
A positive PID input causes an increase in the PID output (direct acting).
Setting 1: Inverse Acting
A positive PID input causes a decrease in the PID output (reverse acting).
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b5-39: PID System Units Display Digits
Determines the number of digits for the user-defined display for the PID setpoint (Q1-oo) and PID feedback monitors (U5-01,
U5-04). The setting value is equal to the number of decimal places.
No.
Name
Setting Range
Default
b5-39
PID System Units Display Digits
0 to 3
1
Setting 0: No Decimal Places
Setting 1: One Decimal Place
Setting 2: Two Decimal Places
Setting 3: Three Decimal Places
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C1-01 to C1-04: Accel, Decel Times 1 and 2
Two 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.
No.
Parameter Name
Setting Range
Default
C1-01
Acceleration Time 1
0.0 to 6000.0 s
<1>
20.0 s
C1-02
Deceleration Time 1
10.0 s
C1-03
Acceleration Time 2
C1-04
Deceleration Time 2
<1> The setting range for the acceleration and deceleration times is determined by the accel/decel time setting units in C1-10. For example, if the time
is set in units of 0.01 s (C1-10 = 0), the setting range becomes 0.00 to 600.00 s.
Switching Acceleration Times by Digital Input
Accel/decel time 1 is active by default if no input is set. Activate accel/decel times 2, 3, and 4 by digital inputs
(H1-oo = 7 and 1A) as explained in
Table 4.18 Accel/Decel Time Selection by Digital Input
Accel/Decel Time Sel. 1
H1-oo = 7
Accel/Decel Time Sel. 2
H1-oo = 1A
Active Times
Acceleration
Deceleration
0
0
C1-01
C1-02
1
0
C1-03
C1-04
4.8 Detailed iQpump Parameter Descriptions
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YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual