YASKAWA Z1000 User Manual page 157

n b5-04: Integral Limit Setting
Sets the maximum output possible from the integral block as a percentage of the maximum frequency (E1-04).
No.
b5-04
Note: On some applications, especially those with rapidly varying loads, the output of the PI function may show a fair amount of oscillation.
Program b5-04 to apply a limit to the integral output and suppress this oscillation.
n b5-06: PI Output Limit
Sets the maximum output possible from the entire PI controller as a percentage of the maximum frequency (E1-04).
No.
b5-06
n b5-07: PI Offset Adjustment
Sets the offset added to the PI controller output as a percentage of the maximum frequency (E1-04).
No.
b5-07
n b5-08: PI Primary Delay Time Constant
Sets the time constant for the filter applied to the output of the PI controller. Normally, change is not required.
No.
b5-08
Note: Useful when there is a fair amount of oscillation or when rigidity is low. Set to a value larger than the cycle of the resonant frequency.
Increasing this time constant may reduce the responsiveness of the drive.
n b5-09: PI Output Level Selection
Reverses the sign of the PI controller output signal. Normally a positive PI input (feedback smaller than setpoint) leads to
positive PI output.
No.
b5-09
Setting 0: Normal Output
A positive PI input causes an increase in the PI output (direct acting).
Setting 1: Reverse Output
A positive PI input causes a decrease in the PI output (reverse acting).
n b5-10: PI Output Gain Setting
Applies a gain to the PI output and can be helpful when the PI function is used to trim the frequency reference (b5-01 = 3 or
4).
No.
b5-10
n b5-11: PI Output Reverse Selection
Determines whether a negative PI output reverses the direction of drive operation. This parameter has no effect when the PI
function trims the frequency reference (b5-01 = 3) and the PI output will not be limited (same as b5-11 = 1).
No.
b5-11
YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual
Name
Integral Limit Setting
Name
PI Output Limit
Name
PI Offset Adjustment
Name
PI Primary Delay Time Constant
Parameter Name
PI Output Level Selection
Name
PI Output Gain Setting
Parameter Name
PI Output Reverse Selection
4.13 Advanced Drive Setup Adjustments
Setting Range
0.0 to 100.0%
Setting Range
0.0 to 100.0%
Setting Range
-100.0 to 100.0%
Setting Range
0.00 to 10.00 s
Setting Range
0, 1
Setting Range
0.00 to 25.00
Setting Range
0, 1
Default
100.0%
Default
100.0%
Default
0.0%
Default
0.00 s
Default
0
4
Default
1.00
Default
0
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