Setting 2: Feedback Loss Fault
If the PID feedback value falls below the level set to b5-13 for longer than the time set to b5-14, a “FBL - Feedback Low”
fault will be displayed. If the PID feedback value exceeds the level set to b5-36 for longer than the time set to b5-37, a “FBH
- Feedback High” fault will be displayed. Both events trigger a fault output (H1-oo = E) and cause the drive to stop the
motor.
Setting 3: Digital Output Only, Even if PID is Disabled by Digital Input
Same as b5-12 = 0. Detection is still active even if PID is disabled by a digital input (H1-oo = 19).
Setting 4: Feedback Loss Alarm, Even if PID is Disabled by Digital Input
Same as b5-12 = 1. Detection is still active even if PID is disabled by a digital input (H1-oo = 19).
Setting 5: Feedback Loss Fault, Even if PID is Disabled by Digital Input
Same as b5-12 = 2. Detection is still active even if PID is disabled by a digital input (H1-oo = 19).
n
b5-13: PID Feedback Loss Detection Level
Sets the feedback level used for PID feedback loss detection. The PID feedback has to fall below this level for longer than the
time b5-14 before feedback loss is detected.
No. Name Setting Range Default
b5-13 PID Feedback Loss Detection Level 0 to 100% 0%
n
b5-14: PID Feedback Loss Detection Time
Sets the time that the PID feedback has to fall below b5-13 before feedback loss is detected.
No. Name Setting Range Default
b5-14 PID Feedback Loss Detection Time 0.0 to 25.5 s 1.0 s
n
PID Sleep
The PID Sleep function stops the drive when the PID output or the frequency reference falls below the PID Sleep operation
level for a certain time. The drive will resume operating once the PID output or frequency reference rises above the PID Sleep
operation level for the specified time. The operation is explained in the figure below.
PID Output
PID Sleep Function
Start Level ( b5-15)
Sleep Delay Time
Sleep Delay Time
Run command enabled
Continues to output “During Run”
Internal Run
command
External Run
command
During Run
Stop
b5-16 b5-16
Run
Figure 5.21 PID Sleep Operation
Notes on using the PID Sleep function:
• The PID Sleep function is always active, even if PID control is disabled.
• The method the Sleep function uses to stop the motor is defined by parameter b1-03.
• The parameters necessary to set up the PID Sleep function are explained below.
n
b5-15: PID Sleep Function Start Level
Sets the level used for 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 the operation when the PID output or frequency reference is above b5-15 for longer than the time set in
b5-16.
No. Name Setting Range Default
b5-15 PID Sleep Function Start Level 0.0 to 400.0 Hz 0.0 Hz
5.2 b: Application
136
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
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