Toshiba VF-S9 Constant torque characteristics general method of use, Setting for fans and pumps

Models: VF-S9

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1) Constant torque characteristics (general method of use)

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1) Constant torque characteristics (general method of use)

Setting of V/F control mode selection 2) Setting for fans and pumps to Manual background (V/F constant)

This is applied to loads with equipment like conveyors and cranes that require the same torque at low speeds as at rated speeds.

Base frequency voltage

 

Output voltage (%)

 

Base frequency

Output frequency (Hz)

To increase the torque further, increase the setting value of the manual torque boost Manual background.

For more details, see 5.13.

2) Setting for fans and pumps

 

 

5

 

Setting of V/F control selection

to (variable torque)

 

 

 

This is appropriate for load characteristics of such things as fans, pumps and blowers in which the torque in

 

relation to load rotation speed is proportional to its square.

 

 

 

Base frequency voltage

 

 

 

 

Output voltage (%)

 

 

 

 

 

Base frequency

Output frequency (Hz)

E-15

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Toshiba VF-S9 manual Constant torque characteristics general method of use, Setting for fans and pumps