Yaskawa CIMR-PU2A0081 — настройки защиты и управления для частотных преобразователей [247/548]

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Yaskawa CIMR-PU2A0211 [247/548] Enables input phase loss detection since measuring the dc bus ripple detects input phase loss a power supply voltage imbalance or main circuit capacitor deterioration may also trigger a phase loss fault pf detection is disabled if the drive is decelerating no run command is active output current is less than or equal to 30 of the drive rated current
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L8-19: Frequency Reduction Rate during Overheat Pre-Alarm
Specifies the output frequency reduction 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 Overheat Pre-Alarm 0.1 to 0.9 0.8
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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 Protection Selection 0, 1 1
Setting 0: Disabled
Setting 1: Enabled
Enables input phase loss detection. Since measuring the DC bus ripple detects input phase loss, a power supply voltage
imbalance or main circuit capacitor deterioration may also trigger a phase loss fault (PF).
Detection is disabled if:
The drive is decelerating.
No Run command is active.
Output current is less than or equal to 30% of the drive rated current.
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L8-07: Output Phase Loss Protection Selection
Enables or disables the output phase loss detection 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.
Setting 2: Fault when Two Phases Are Lost
An output phase loss fault (LF) is triggered when two or more output phases are lost. The output shuts off and the motor coasts
to stop.
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L8-09: Output Ground Fault Detection Selection
Enables or disables the output ground fault detection.
No. Name Setting Range Default
L8-09 Output Ground Fault Detection Selection 0, 1 1
Setting 0: Disabled
Ground faults are not detected.
Setting 1: Enabled
A ground fault (GF) is triggered when high leakage current or a ground short circuit occurs in one or two output phases.
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L8-10: Heatsink Cooling Fan Operation Selection
Selects the heatsink cooling fan operation.
No. Name Setting Range Default
L8-10 Heatsink Cooling Fan Operation Selection 0, 1 0
Setting 0: Run with timer
The fan is switched on when a Run command is active and switched off with the delay set to parameter L8-11 after releasing
the Run command. This setting extends the fan lifetime.
5.8 L: Protection Functions
YASKAWA SIEP YAIP1U 01A AC Drive - P1000 Technical Manual
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Parameter Details

Содержание

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Изучите параметры защиты и управления частотными преобразователями, включая защиту от потери фазы, обнаружение короткого замыкания и управление вентиляторами охлаждения.