YASKAWA E1000 User Manual

5.2 b: Application
Parameter Details
5
YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual 153
■ b5-17: PI Accel/Decel Time
The PI acceleration/deceleration time is applied on the PI setpoint value.
As the normal acceleration times C1- are applied after the PI output, they reduce the responsiveness of the system
and can cause hunting or overshoot and undershoot when the setpoint changes quickly. Using the PI acceleration/
deceleration time instead helps to avoid such problems.
The PI acceleration/deceleration time can be canceled using a digital input programmed for “PI SFS cancel” (H1- =
34).
■
b5-18: PI Setpoint Selection
Enables or disables parameter b5-19 for PI setpoint.
Setting 0: Disabled
Parameter b5-19 is not used as the PI setpoint.
Setting 1: Enabled
Parameter b5-19 is used as PI setpoint.
■
b5-19: PI Setpoint Value
Used as the PI setpoint if parameter b5-18 = 1.
■
b5-20: PI Setpoint Scaling
Determines the units that the PI setpoint (b5-19) is set in and displayed. Also determines the units for monitors U5-01
and U5-04.
Setting 0: Hz
The setpoint and PI monitors are displayed in Hz with a resolution of 0.01 Hz.
Setting 1: %
The setpoint and PI monitors are displayed as a percentage with a resolution of 0.01%.
Setting 2: r/min
The setpoint and PI monitors are displayed in r/min with a resolution of 1 r/min.
Setting 3: User Defined
Parameters b5-38 and b5-39 determine the units and resolution used to display the values the setpoint in b5-19, and PI
monitors U1-01 and U1-04.
No. Name Setting Range Default
b5-17 PI Accel/Decel Time 0.0 to 6000.0 s 0.0 s
No. Parameter Name Setting Range Default
b5-18 PI Setpoint Selection 0 or 1 0
No. Name Setting Range Default
b5-19 PI Setpoint Value 0.00 to 100.00% 0.00%
No. Parameter Name Setting Range Default
b5-20 PI Setpoint Scaling 0 to 3 1
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YASKAWA E1000 Specifications

General

Brand	YASKAWA
Model	E1000
Category	Controller
Language	English