Mitsubishi Electric FR-A720-0.4K Instruction Manual page 140

Parameter
Name
859, 860
Refer to Pr. 82.
—
Notch filter time
862
constant
863
Notch filter depth
864
Torque detection
865
Refer to Pr. 41.
866
Refer to Pr. 55.
—
867
Refer to Pr. 52.
868
Refer to Pr. 858.
872
Refer to Pr. 251.
—
873
Speed limit
874
Refer to Pr. 22.
—
875
Fault definition
877 to 881
Refer to Pr. 828.
—
Incre- Initial
Range
ments Value
You can use the machine resonance
speed to make this setting to reduce the
1 0 0 to 60 response level of the machine resonance
frequency band, avoiding machine
resonance.
0 Deep (-40dB)
↑ (-14dB)
1
1 0
↓ (-8dB)
2
3 Shallow (-4dB)
You can make setting to output a signal if
0.1% 150% 0 to 400% the motor torque exceeds the
predetermined value.
Frequency is limited at the set frequency +
0.01Hz 20Hz 0 to 120Hz
Pr.873 during vector control.
At occurrence of any fault, output is shut
0 off immediately. At this time, the fault
output also turns on.
At occurrence of external thermal operation
(OHT), electronic thermal relay function
1 0
(THM) or PTC thermistor function (PTC)
fault, the motor is decelerated to a stop.
1
At occurrence of a fault other than OHT,
THM and PTC, inverter trips immediately.
Same operation as when "0" is set is
performed under position control.
Parameter List
Description
× : disabled
: enabled
3
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