YASKAWA Lift Inverter L1000V, Техническое руководство

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5.8 L: Protection Functions
148 YASKAWA EUROPE SIEP YASKAWA AC Drive L1000V Technical Manual
Setting 2: Enabled for Entire Frequency Range
The carrier frequency is reduced at the following speeds:
• At or below 6 Hz when output current exceeds 100% of drive rated current.
• Above 6 Hz when output current exceeds 112% of drive rated current.
The drive uses the delay time set in parameter L8-40 and a hysteresis of 12% when switching the carrier frequency back
to its normal value.
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L8-40: Carrier Frequency Reduction Off-Delay Time
Sets the delay time which is used to switch back to the normal carrier frequency. The carrier frequency reduction function
is disabled if this value is 0 s.
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L8-41: High Current Alarm Selection
The drive can be set to trigger a high current alarm (HCA) when the output current rises too high.
Setting 0: Disabled
No alarm is triggered.
Setting 1: Enabled
An alarm is triggered when the output current exceeds 150% of the drive rated current. A digital output indicating an
alarm (H2-
= 10) can be programmed.
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L8-43: Output Phase Loss Detection Time
Sets the amount of time that an Output Phase Loss condition has to be present before a fault is triggered.
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L8-88: Safe Disable Operation Mode
Determines the operation performed by the drive when the Safe Disable input is activated.
Setting 0: Mode 0
Setting 1: Mode 1 (L7 compatible)
When the Safe Disabled Input is triggered, the operator displays and alarm, and the corresponding output terminal will
react as follows:
No. Name Setting Range Default
L8-40 Carrier Frequency Reduction Off-Delay Time 0.00 to 2.00 s 0.50 s
No. Name Setting Range Default
L8-41 High Current Alarm Selection 0 or 1 0
No. Name Setting Range Default
L8-43 Ouput Phase Loss DetectionTime 0.0 to 2.0 s 0.5 s
No. Name Setting Range Default
L8-88 Safe Disable Operation Mode 0 or 1 1
L8-88
Safe Disable Operation
Selection
Alarm Display during Safety Disable Alarm Output (H2- = 10 )
Drive Ready
(H2-
= 6)
0 (mode 0) Hbb ALM flashes ON OFF
1 (mode1) Hbb ALM flashes OFF ON