10 s
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
Reset oH
Alarm
Reset oH
Alarm
oH
Alarm
oH
Alarm
oH
Alarm
Output frequency
oH Alarm number
Digital output (4D)
oH
Alarm
Figure 5.78 Output Frequency Reduction During Overheat Alarm
n
L8-19: Frequency Reduction Rate During Overheat Pre-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.
No.
Name
Setting Range
Default
L8-19
Frequency Reduction Rate During oH Pre-Alarm
0.1 to 0.9
0.8
n
L8-05: Input Phase Loss Protection Selection
Enables or disables the input phase loss detection.
No.
Name
Setting Range
Default
L8-05
Input Phase Loss Detection Selection
0 or 1
1
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 Run command is active.
• Output current is less than or equal to 30% of the drive rated current.
n
L8-07: Output Phase Loss Protection Selection
Enables or disables the output phase loss detection, which is triggered when the output current falls below 5% of the drive
rated current.
Note:
Output phase loss detection can mistakenly be triggered if the motor rated current is very small compared to the drive rating. Disable this
parameter in such cases.
No.
Name
Setting Range
Default
L8-07
Output Phase Loss Protection Selection
0 to 2
1
Setting 0: Disabled
Setting 1: Fault when One Phase is Lost
An output phase loss fault (LF) is triggered when one output phase is lost. The output shuts off and the motor coasts to stop.
5.8 L: Protection Functions
YASKAWA
TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
209
5
Parameter Details
Содержание iQpump Micro CIMR-PW Series
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