Torque Limits - Toshiba TOSVERT VF-AS3 Instruction Manual

6. 24 Torque limits

6. 24. 1 Switching torque limits
<F440: Power running torque limit input select 1>
<F441: Power running torque limit level 1>
<F442: Regenerative torque limit input select 1>
<F443: Regenerative torque limit level 1>
<F444: Power running torque limit level 2>
<F445: Regenerative torque limit level 2>
<F446: Power running torque limit level 3>
<F447: Regenerative torque limit level 3>
<F448: Power running torque limit level 4>
<F449: Regenerative torque limit level 4>
<F454: Torque limit in field weakening>
■ Function
When the motor-generated torque reaches a certain level, the inverter reduce the torque by lowering
the output frequency.
You can select a constant output limit or a constant torque limit in the constant output zone.
■ Selecting a setting value
1) When torque limits are applied by the parameter setting values
Reverse run
Select from where to input a torque limit value at <F440: Power running torque limit input select
1> and <F442: Regenerative torque limit input select 1>.
As default setting, torque limits are applied by the parameter setting values.
Positive torque
<F441>
<F443>
Power
Regeneration running
Power
Regeneration
running
<F443>
<F441>
Negative torque
6-95
E6582062
STOP 0.0Hz
F440 : Power torque limit input 1
12: F441
1: Terminal RR
2: Terminal RX
3: Terminal Ⅱ
4: Terminal AI4(option)
+250% torque
<F454> 0
<F454> 1
Forward run
-250% torque
6. [Advanced] How to use parameters
13:44
3
4
6
9