No. Name Description
b5-35 PI Input Limit
Limits the PI control input (deviation
signal) as a percentage of the maximum
output frequency. Acts as a bipolar limit.
b5-36
PI Feedback High
Detection Level
Sets the PI feedback high detection level as
a percentage of the maximum output
frequency.
b5-37
PI Feedback High
Detection Time
Sets the PI feedback high level detection
delay time.
b5-38
PI Setpoint User
Display
Sets the display value of U5-01 and U5-04
when the maximum frequency is output.
b5-39
PI Setpoint Display
Digits
0: No decimal places
1: One decimal place
2: Two decimal places
3: Three decimal places
Note: Default setting is
dependent on parameter
b5-20, PI Setpoint Scaling.
b5-40
Frequency Reference
Monitor Content
during PI
0: Display the frequency reference
(U1-01) after PI compensation has been
added.
1: Display the frequency reference (U1-01)
before PI compensation has been added.
b5-41 PI Unit Selection
0: WC (Inch of water)
1: PSI (Pounds per square inch)
2: GPM (Gallons per minute)
3: F (Degrees Fahrenheit)
4: CFM (Cubic feet per minute)
5: CMH (Cubic meters per hour)
6: LPH (Liters per hour)
7: LPS (Liters per second)
8: Bar (Bar)
9: Pa (Pascal)
10: C (Degrees Celsius)
11: Mtr (Meters)
12: Ft (Feet)
13: LPM (Liters per minute)
14: CMM (Cubic meters per minute)
b5-42
PI Output Monitor
Calculation Method
0: Linear - the monitor displays PI
output
1: Square root - the monitor displays square
root PI output
2: Quadratic - the monitor displays 1/(PI
output)
3: Cubic - the monitor displays 1/(PI output)
b5-43
PI Output 2 Monitor
Max Upper 4 Digits
Sets the upper 4 digits of the maximum
monitor value.
Used with b5-44 to set maximum monitor
value of U5-14 and U5-15 at maximum
frequency.
Note: Used for U5-14 and U5-15
only.
b5-44
PI Output 2 Monitor
Max Lower 4 Digits
Sets the lower 4 digits of the maximum
monitor value.
Used with b5-43 to set maximum monitor
value of U5-14 and U5-15 at maximum
frequency.
Note: Used for U5-14 and U5-15
only.
b5-45
PI Output 2 Monitor
Minimum
Sets the minimum display value at zero
speed.
This function is effective when b5-42 is set
to 0 (Linear output mode).
Note: Used for U5-14 and U5-15
only.
No. Name Description
b5-46
PI Setpoint Monitor
Unit Selection
0: WC (Inch of water)
1: PSI (Pounds per square inch)
2: GPM (Gallons per minute)
3: F (Degrees Fahrenheit)
4: CFM (Cubic feet per minute)
5: CMH (Cubic meters per hour)
6: LPH (Liters per hour)
7: LPS (Liters per second)
8: Bar (Bar)
9: Pa (Pascal)
10: C (Degrees Celsius)
11: Mtr (Meters)
12: Ft (Feet)
13: LPM (Liters per minute)
14: CMM (Cubic meters per minute)
b5-47
Reverse Operation
Selection 2 by PI
Output
Reverse operation selection when b5-01 =
3
0: Reverse Disabled
1: Reverse Enabled
b8-01
Energy Saving Control
Selection
0: Disabled
1: Enabled
Note: Default setting is
determined by parameter
A1-02, Control Method
Selection.
b8-04
Energy Saving
Coefficient Value
Determines the level of maximum motor
efficiency. Setting range is 0.0 to 2000.0 for
drives 3.7 kW and smaller.
b8-05
Power Detection Filter
Time
Sets a time constant filter for output power
detection.
b8-06
Search Operation
Voltage Limit
Sets the limit for the voltage search
operation as a percentage of the motor rated
voltage.
C1-01 Acceleration Time 1
Sets the time to accelerate from 0 to
maximum frequency.
C1-02 Deceleration Time 1
Sets the time to decelerate from maximum
frequency to 0.
C1-03 Acceleration Time 2
Sets the time to accelerate from 0 to
maximum frequency.
C1-04 Deceleration Time 2
Sets the time to decelerate from maximum
frequency to 0.
C1-09 Fast Stop Time Sets the time for the Fast Stop function.
C1-11
Accel/Decel Time
Switching Frequency
Sets the frequency to switch between accel/
decel time settings. Setting units are
determined by parameter A1-02, Control
Method Selection.
C2-01
S-Curve Characteristic
at Accel Start
The S-curve can be controlled at the four
points shown below.
Run Command
Time
Output Frequency
C2-01 0.20 s <1>
C2-02 0.20 s <1>
ON
OFF
<1> S-curve characteristics at decel start/
end are fixed to 0.20 s.
Note: Default setting is
determined by parameter
A1-02, Control Method
Selection.
C2-02
S-Curve Characteristic
at Accel End
i.8 Parameter Table
YASKAWA ELECTRIC TOEP C710616 54A YASKAWA AC Drive - Z1000 Quick Start Guide
71
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