Torque Limit - Toshiba VF-S15 Instruction Manual

6.26 Torque limit

6.26.1 Torque limit switching
f441 : Power running torque limit 1 level
f443 : Regenerative braking torque limit
f444 : Power running torque limit 2 level
 Function
Decrease the output frequency according to the overload condition when the motor torque reaches a
certain set level. This function will be invalid when setting a torque limit parameter at 250.
You can also select limiting the constant output or constant torque in the constant output zone.
This function will not work when the parameter =, , 7 setting.
 Setting methods
When setting limits to torque, use internal parameters (Torque limits can also be set with an external control device.)
With the parameter f454, you can select the item for limit treatment in the constant output zone (somewhat weak
magnetic field) from constant output (f454=0: default setting) or constant torque (f454=1).
Output voltage limit option(f307=1) is recommended for the parameter f307 (supply voltage correction).
Power running torque limit and regenerative braking torque limit can be set with the parameters f441 and f443.
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1 level

Regenerative
Reverse run
Power
running

f445 : Regenerative braking torque limit
f454 : Constant output zone torque limit
Positive torque
 
Power
running
Regenerative

Negative torque
F-91
E6581611
2 level
selection
: =
: =
Forward run
6