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• Below 6 Hz when the current exceeds 100% of the drive rated current.
• Above 7 Hz when the current exceeds 112% of the 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 the set value.
n
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.
No.
Name
Setting Range
Default
L8-40
Low Carrier Frequency Off Delay Time
0.00 or 2.00 s
0.50 s
n
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.
No.
Name
Setting Range
Default
L8-41
High Current Alarm Selection
0 or 1
0
Setting 0: Disabled
No alarm is output.
Setting 1: Enabled
An alarm is triggered when the output current exceeds 150% of the drive rated current. A digital output indicating an alarm
(H2-01/02/03 = 10) can be programmed.
5.8 L: Protection Functions
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
207
5
Parameter Details
7/16/2008-13:23
Содержание V1000
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Страница 27: ...1 4 Component Names This Page Intentionally Blank 26 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 37: ...2 2 Mechanical Installation This Page Intentionally Blank 36 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 63: ...3 12 Wiring Checklist This Page Intentionally Blank 62 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 221: ...5 11 U Monitor Parameters This Page Intentionally Blank 220 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 273: ...7 5 Drive Replacement This Page Intentionally Blank 272 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 287: ...8 6 Connecting an Option Card This Page Intentionally Blank 286 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 297: ...A 6 Drive Derating Data This Page Intentionally Blank 296 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
Страница 379: ...C 13 Self Diagnostics This Page Intentionally Blank 378 SIEP C710606 20 OYMC AC Drive V1000 User Manual ...
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