1.8 L: Protection Functions
YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
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Figure 1.86
Figure 1.86 Output Frequency Reduction During Overheat Alarm
■
L8-19: Frequency Reduction During Overheat Alarm
Specifies how much the output frequency is reduced when L8-03 is set to 4 and an OH alarm
is present. Set as a factor of the maximum output frequency.
■
L8-05: Input Phase Loss Protection Selection
Enables or disables the input phase loss detection.
Setting 0: Disabled
Setting 1: Enabled
Enables the input phase loss detection. As detection is performed by measuring the DC bus
ripple, a phase loss fault (PF) can also be triggered by power supply voltage imbalance or
main circuit capacitor deterioration. Detection is disabled when:
• the drive is decelerating
No.
Name
Setting Range
Default
L8-03
Frequency Reduction during OH Alarm
0.1 to 0.9
0.8
No.
<1> Disabled in 200 V single-phase drives.
Name
Setting Range
Default
L8-05
Input Phase Loss Detection Selection
0 or 1
10 s
㽲
㽳
㽴
㽵
㽻
䋨
etc)
time
10 s
10 s
10 s
10 s
10 s
10 s
f
ref
× (L8-19)
f
ref
× (L8-19)
2
f
ref
× (L8-19)
4
f
ref
× (L8-19)
3
f
ref
Output frequency
Reset oH
Alarm
Reset oH
Alarm
Digital ouput (4D)
oH
Alarm
oH
Alarm
oH
Alarm
oH
Alarm
oH alarm number
㽶
㽷
Содержание OYMC V1000
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