YASKAWA iQpump1000 Installation & Start?Up Manual page 58

i.5 Start-Up Programming and Operation
n b5-01: PID Function Setting
Enables and disables the PID operation and selects the PID operation mode.
No.
b5-01
Setting 0: PID disabled
Setting 1: Output frequency = PID output 1
The PID controller is enabled and the PID output builds the frequency reference. The PID input is D controlled.
n b5-02: Proportional Gain Setting (P)
Sets the P gain applied to the PID input. Larger values will tend to reduce the error but may cause oscillations if set too high,
while lower values may allow too much offset between the setpoint and feedback. The function of b5-02 is disabled when
P1-24 > 0.
No.
b5-02
n 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.
b5-03
n 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.
b5-09
Setting 0: Normal Output
A positive PID input causes an increase in the PID output (direct acting).
Setting 1: Reverse Output
A positive PID input causes a decrease in the PID output (reverse acting).
n b5-39: PID Setpoint User Display, PID Setpoint Display Digits
Setst a user-defined display for the PID setpoint (b5-19) and PID feedback monitors (U5-01, U5-04). The setting value is equal
to the number of decimal places.
No.
b5-39
Setting 0: No Decimal Places
Setting 1: One Decimal Place
Setting 2: Two Decimal Places
Setting 3: Three Decimal Places
n 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.
58
Parameter Name
PID Function Setting
Name
Proportional Gain Setting (P)
Name
Integral Time Setting (I)
Parameter Name
PID Output Level Selection
Name
PID Setpoint Display Digits
YASKAWA TOEP YAIP1W 02E YASKAWA AC Drive - iQpump1000 Installation & Start-up Guide
Setting Range
0, 1
Setting Range
0.00 to 25.00
Setting Range
0.0 to 360.0 s
Setting Range
0, 1
Setting Range
0 to 3
Default
1
Default
2.00
Default
1.0 s
Default
0
Default
1