2.3 b: Application
190 YASKAWA TOEPYAIGA5002A GA500 DRIVE PROGRAMMING
The drive detects FbL and FbH. The MFDO terminal set for PID Feedback Low or PID Feedback High activates. The
output terminal set for Alarm [H2-01 to H2-03 = 10] activates and the drive continues operation.
When the MFDI terminal set to PID Disable [H1-xx = 19] activates, the drive disables fault detection.
5 : Fault + Digital Out, @PID Enable
The drive detects FbL and FbH. MFDO terminal MA-MC turns ON, MB-MC turns OFF, and the drive coasts to stop.
When the MFDI terminal set to PID Disable [H1-xx = 19] activates, the drive disables fault detection.
■ b5-13: PID Feedback Loss Detection Lvl
No.
(Hex.)
Name Description
Default
(Range)
b5-13
(01B1)
PID Feedback Loss
Detection Lvl
Sets the level that triggers PID Feedback Loss [FbL] detection as a percentage of the Maximum
Output Frequency.
0%
(0 - 100%)
The drive detects PID Feedback Loss [FbL] when the feedback signal decreases to less than the level set in b5-13 for
longer than the time set in b5-14 [PID Feedback Loss Detection Time].
■ 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].
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