YASKAWA A1000 Series Technical Manual page 158

5.2 b: Application
b5-13: PID Feedback Low Detection Level
■
Sets the feedback level used for PID feedback low detection. The PID feedback has to fall below this level for longer
than the time b5-14 before feedback loss is detected.
No.
b5-13
b5-14: PID Feedback Low Detection Time
■
Sets the time that the PID feedback has to fall below b5-13 before feedback loss is detected.
No.
b5-14
b5-36: PID Feedback High Detection Level
■
Sets the feedback level used for PID feedback high detection. The PID feedback has to exceed this level for longer than
the time b5-37 before feedback loss is detected.
No.
b5-36
b5-37: PID Feedback High Detection Time
■
Sets the time for that the PID feedback has to exceed b5-36 before feedback loss is detected.
No.
b5-37
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. An example of PID Sleep operation appears in the figure below.
Figure 5.25
Notes on using the PID Sleep function
• The PID Sleep function is always active, even if PID control is disabled.
• The PID Sleep function stops the motor according to the stopping method in b1-03.
The parameters necessary that control the PID Sleep function are explained below.
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 the operation when the PID output or frequency reference is above b5-15 for longer than the time set
in b5-16.
No.
b5-15
158
Name
PID Feedback Low Detection Level
Name
PID Feedback Low Detection Time
Name
PID Feedback High Detection Level
Name
PID Feedback High Detection Time
PID Output
PID Sleep Level ( b5-15)
Sleep Delay Time
b5-16
Internal Run
command
Run
External Run
command
During Run
Figure 5.25 PID Sleep Operation
Name
PID Sleep Function Start Level
b5-16
Sleep Delay Time
Stop
Run command enabled
Continues to output "During Run"
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Setting Range
0 to 100%
Setting Range
0.0 to 25.5 s
Setting Range
0 to 100%
Setting Range
0.0 to 25.5 s
common_TMonly
Setting Range
0.0 to 400.0 Hz
Default
0%
Default
1.0 s
Default
100%
Default
1.0 s
Default
0.0 Hz