Yaskawa AC Drive Z1000 - Manual (Page 166)

0: Disabled
1: Square Root
n b5-29: PI Square Root Gain
A multiplier applied to the square root of the feedback. If the PI Function is regulating the flow of a closed loop system by
using a pressure feedback, it may be convenient to view the square root of the PI output using monitor U1-37.
No. Parameter Name Setting Range Default
b5-29 PI Square Root Gain 0.00 to 2.00 0.00
n b5-30: PI Feedback Offset
Sets PI feedback Offset as a percentage of maximum frequency.
No. Parameter Name Setting Range Default
b5-30 PI Feedback Offset 0.00 to 100.00% 0.00%
n b5-34: PI Output Lower Limit
Sets the minimum possible PI controller output as a percentage of the maximum output frequency (E1-04). The lower limit is
disabled when set to 0.00%
No. Name Setting Range Default
b5-34 PI Output Lower Limit -100.0 to 100.0% 0.0%
n b5-35: PI Input Limit
Sets the maximum allowed PI input as a percentage of the maximum output frequency (E1-04). Parameter b5-35 acts as a
bipolar limit.
No. Name Setting Range Default
b5-35 PI Input Limit 0 to 1000.0% 1000.0%
n b5-36: PI Feedback High Detection Level
Sets the feedback level used for PI feedback high detection. The PI feedback must exceed this level for longer than the time
set to b5-37 before feedback loss is detected.
No. Name Setting Range Default
b5-36 PI Feedback High Detection Level 0 to 100% 100%
n b5-37: PI Feedback High Detection Time
Sets the time that the PI feedback must exceed the value set to b5-36 before feedback loss is detected.
No. Name Setting Range Default
b5-37 PI Feedback High Detection Time 0.0 to 25.5 s 1.0 s
n b5-38, b5-39: PI Setpoint User Display, PI Setpoint Display Digits
When parameter b5-20 is set to 3, parameters b5-38 and b5-39 set a user-defined display for the PI setpoint (b5-19) and PI
feedback monitors (U5-01, U5-04).
Parameter b5-38 determines the display value when the maximum frequency is output and parameter b5-39 determines the
number of digits. The setting value is equal to the number of decimal places.
No. Name Setting Range Default
b5-38 PI Setpoint User Display 1 to 60000
Determined by
b5-20
b5-39 PI Setpoint Display Digits 0 to 3
Determined by
b5-20
n b5-40: Frequency Reference Monitor Content During PI
Sets the content of the frequency reference monitor display (U1-01) when PI control is active.
4.13 Advanced Drive Setup Adjustments
166 YASKAWA ELECTRIC TOEP C710616 45E YASKAWA AC Drive – Z1000 User Manual