12.3 b: Application
534 YASKAWA SIEPC71061753C GA500 Technical Manual
■ b5-14: PID Feedback Loss Detection Time
No.
(Hex.)
Name Description
Default
(Range)
b5-14
(01B2)
PID Feedback Loss
Detection Time
Sets the length of time that PID Feedback must be less than b5-13 [PID Feedback Loss Detection
Lvl] to detect PID Feedback Loss [FbL].
1.0 s
(0.0 - 25.5 s)
■ b5-15: PID Sleep Function Start Level
No.
(Hex.)
Name Description
Default
(Range)
b5-15
(01B3)
PID Sleep Function Start
Level
Sets the output level that triggers the PID Sleep function.
Determined by A1-02
(0.0 - 590.0)
The drive goes into Sleep mode when the PID output or frequency reference is less than b5-15 for longer than the
time set to b5-16 [PID Sleep Delay Time]. The drive continues operation when the PID output or frequency
reference is more than b5-15 for longer than the time set to b5-16.
■ b5-16: PID Sleep Delay Time
No.
(Hex.)
Name Description
Default
(Range)
b5-16
(01B4)
PID Sleep Delay Time
Sets a delay time to start or stop the PID Sleep function.
0.0 s
(0.0 - 25.5 s)
■ b5-17: PID Accel/Decel Time
No.
(Hex.)
Name Description
Default
(Range)
b5-17
(01B5)
RUN
PID Accel/Decel Time
Raises or lowers the PID setpoint using the acceleration and deceleration times set to the drive.
This is a soft-starter for the PID setpoint.
0.0 s
(0.0 - 6000.0 s)
The drive usually uses the acceleration and deceleration times set in C1-xx [Accel and Decel Times], but when
PID control is enabled, the drive applies C1-xx after PID output. If you frequently change the PID setpoint, the
drive responsiveness decreases. When resonance with PID control causes hunting, overshoot, or undershoot, set
b5-17 for longer acceleration and deceleration times.
Decrease C1-xx until hunting stops, then use b5-17 to check the acceleration and deceleration. To enable and
disable the setting in b5-17 through an MFDI terminal, set PID Soft Starter Disable [H1-xx = 34].
■ b5-18: b5-19 PID Setpoint Selection
No.
(Hex.)
Name Description
Default
(Range)
b5-18
(01DC)
b5-19 PID Setpoint
Selection
Sets the function that enables and disables b5-19 [PID Setpoint Value].
0
(0, 1)
0 : Disabled
The drive does not use the value set in b5-19 as the PID setpoint.
1 : Enabled
The drive uses the value set in b5-19 as the PID setpoint.
■ b5-19: PID Setpoint Value
No.
(Hex.)
Name Description
Default
(Range)
b5-19
(01DD)
RUN
PID Setpoint Value
Sets the PID setpoint when b5-18 = 1 [b5-19 PID Setpoint Selection = Enabled].
0.00%
(0.00 - 100.00%)
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