E6582062
6. [Advanced] How to use parameters 6-142
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6. 30. 16 Analog input disconnection detection
<F633: II analog input disconnection detection level>
<F644: Operation after II analog input disconnection
detection>
<F649: Fallback frequency>
■ Function
This parameter sets the action when the analog input level for [II] terminal is the setting value of
<F633: II analog input disconnection detection level> or less for approximately 0.3 seconds.
You can trip the inverter or maintain its operation. The trip display is "E-18". If you select other than
a trip, alarm "A-18" blinks.
■ Parameter setting
■ Setting the <F633: II analog input disconnection detection level>
0: Disabled
No detection.
1 - 100
Action of the inverter is based on the setting of <F644: Operation after II analog input disconnection
detection> when the analog input level for [II] terminal is the setting value of <F633> or less for
approximately 0.3 seconds.
■ Setting the <F644: Operation after II analog input disconnection detection>
This parameter sets the action when the analog input level for [II] terminal is the setting value of
<F633> or less for approximately 0.3 seconds.
1 : Frequency reference keeps just before reference
Continue running.
Title Parameter name Adjustment range Unit Default setting
F633 II analog input
disconnection detection
level
0: Disabled
1 - 100
%0
F644 Operation after II analog
input disconnection
detection
1 : Frequency reference keeps just
before reference, & Alarm.
2 : Ramp Coast stop, & Alarm
3 : Free wheel, & Alarm
4 : Free wheel, & Fault
5 : Frequency reference becomes
F649, & Alarm.
-4
F649 Fallback frequency LL-UL Hz 0.0
0.0HzSTOP
14:02
F633 : II input disconnection level
Min: 0 Max: 100
X1000 X100 X10 X1
%
0
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