5.2 b: Application
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual 209
■ b5-15: PID Sleep Function Start Level
Sets the level that triggers PID Sleep.
The drive goes into Sleep mode if the PID output or frequency reference is smaller than b5-15 for longer than the time set
in b5-16. It resumes operation when the PID output or frequency reference is above b5-15 for longer than the time set in
b5-16.
■
b5-16: PID Sleep Delay Time
Sets the delay time to activate or deactivate the PID Sleep function.
■
b5-17: PID Accel/Decel Time
The PID acceleration/deceleration time is applied on the PID setpoint value.
As the normal acceleration times C1- are applied after the PID output, they reduce the responsiveness of the system
and can cause hunting or overshoot and undershoot when the setpoint changes quickly. Using the PID acceleration/
deceleration time instead helps to avoid such problems.
The PID acceleration/deceleration time can be canceled using a digital input programmed for “PID soft starter cancel”
(H1- = 34).
■
b5-18: PID Setpoint Selection
Enables or disables parameter b5-19 for PID setpoint.
Setting 0: Disabled
Parameter b5-19 is not used as the PID setpoint.
Setting 1: Enabled
Parameter b5-19 is used as PID setpoint.
■
b5-19: PID Setpoint Value
Used as the PID setpoint if parameter b5-18 = 1.
■
b5-20: PID Setpoint Scaling
Determines the units that the PID setpoint value (b5-19) is set in and displayed. Also determines the units for monitors
U5-01 and U5-04. The units for setting/display can be changed with b5-20.
Setting 0: 0.01 Hz
The setpoint and PID monitors are displayed in Hz with a resolution of 0.01 Hz.
No. Name Setting Range Default
b5-15
<1> In AOLV/PM and CLV/PM control modes, the setting units and range are expressed as a percent (0.0 to 100.0%) instead of in Hz.
PID Sleep Function Start Level 0.0 to 400.0 Hz
<1>
0.0 Hz
<1>
No. Name Setting Range Default
b5-16 PID Sleep Delay Time 0.0 to 25.5 s 0.0 s
No. Name Setting Range Default
b5-17 PID Accel/Decel Time 0.0 to 6000.0 s 0.0 s
No. Parameter Name Setting Range Default
b5-18 PID Setpoint Selection 0 or 1 0
No. Name Setting Range Default
b5-19 PID Setpoint Value 0.00 to 100.00% 0.00%
No. Parameter Name Setting Range Default
b5-20 PID Setpoint Scaling 0 to 3 1
SIEP_C710636_02B_1_0.book 209 ページ ２０１５年１１月２５日 水曜日 午後４時５６分
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