Inovance MD280 Series - Page 120

Parameter Description MD280/MD280N User Manual
- 120 -
Toruqe hoist
Factory default
value
1.0%
F1-05
Setup range
0.0%˄auto˅to 30.0% 
Torque hoist cut-off
frequency
Fatory default
value
50.00Hz
F1-06
Setup range
0.00Hz to maximum output frequency
˄F0-04˅
To compensate the V/F control low frequency torque characteristics,
increase compensation will be provided for the inverter output voltage upon
low frequency.
Torque hoist: it will be set according to the percentage of input rated
voltage to the inverter. Below are explanations of setting torque increase:
1) When the torque hoist is set as 0.0%, the inverter will adopt auto
torque hoist.
2) This parameter can be properly hoisted for small motor, while for
large motor; the parameter can be properly decreased.
3) If the torque hoist is set to be too large, the motor may have over
temperature, and the inverter may have over-current.
Torque hoist cut-off frequency: As shown in Fig. 6-2, the torque hoist is
valid when the cutoff frequency is below this setting frequency. Otherwise,
the torque hosit will be invalid.
Output Voltage
Output Frequency Hz
Manual Torque
Boost Voltage
Maximum Output Voltage
Cutoff Frequency
of Torque Boost
Rated Running Frequency
Output Voltage
Output Frequency Hz
Manual Torque
Boost Voltage
Maximum Output Voltage
Cutoff Frequency
of Torque Boost
Rated Running Frequency
Fig. 6-2 schematic diagram for manual torque hoist
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