YASKAWA T1000V - Page 127

5.2 b: Application
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual 127
Parameter Details
5
Setting 1: Feedback Loss Alarm
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” alarm will be displayed and a digital output set for “PID feedback low” (H2- = 3E) will be triggered. 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” alarm
will be displayed and a digital output set for “PID feedback high” (H2- = 3F) will be triggered. Both events trigger
an alarm output (H1- = 10). The drive will continue operation. When the feedback value leaves the loss detection
range, the alarm and outputs are reset.
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- = 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- = 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- = 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- = 19).
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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.
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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.
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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.
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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. Name Setting Range Default
b5-13 PID Feedback Low Detection Level 0 to 100% 0%
No. Name Setting Range Default
b5-14 PID Feedback Low Detection Time 0.0 to 25.5 s 1.0 s
No. Name Setting Range Default
b5-36 PID Feedback High Detection Level 0 to 100% 100%
No. Name Setting Range Default
b5-37 PID Feedback High Detection Time 0.0 to 25.5 s 1.0 s