YASKAWA
SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
333
1010 : Enabled (Uv1/–/oH1/–)
1011 : Enabled (Uv1/–/oH1/GF)
1100 : Enabled (Uv1/ov/—/–)
1101 : Enabled (Uv1/ov/—/GF)
1110 : Enabled (Uv1/ov/oH1/–)
1111 : Enabled (Uv1/ov/oH1/GF)
Figure 5.78 Setting Digits and Fault Code
■
L5-40: Low Feedback Flt Retry Selection
No.
(Hex.)
Name
Description
Default
(Range)
L5-40
(3670)
Low Feedback Flt Retry
Selection
Sets the drive to do an Auto Restart when the drive detects an
LFB [Low Feedback Sensed]
fault.
0
(0, 1)
0 : No Retry
1 : Retry
•
When
L5-40 = 1
and
b5-09 = 1 [PID Output Level Selection = Reverse Output (Reverse Acting)]
, the auto-restart
timer will not start timing until after the feedback level increases to more than
Y1-08 [Low Feedback Level]
(+
Y1-
14 [High Feedback Hysteresis Level]
).
•
The drive will set the output frequency to zero during the auto-restart interval time.
•
If you remove the Run (or HAND) Command during the auto-restart interval time, the drive will immediately detect
and reset the fault.
•
When
L5-49 = 1 [Fault Retry Speed Search Select = Enabled]
, the drive will do a speed search when it resets and
restarts after a fault.
•
When you enable Thrust or Pre-Charge Modes, the drive will operate them correctly.
When
L5-40 = 1
, the drive operation will change when
b5-09 [PID Output Level Selection]
changes:
H3-xx = B: PID Feedback
L5-04: Interval Method Restart Time
Y1-08: Low Feedback Level
Y1-09: Low Feedback Lvl Fault Dly Time
Y1-14: Feedback Hysteresis Level
LFB Fault: Low Feedback Sensed
Figure 5.79 Auto Restart for Low Feedback Detection when b5-09 = 0 [Normal Output (Direct Acting)]
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