Toshiba VF-S9 manual Manual torque boost - increasing torque at low speeds, Torque boost

Models: VF-S9

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5.13Manual torque boost - increasing torque at low speeds

5

E6580757

5.13Manual torque boost - increasing torque at low speeds

 : Torque boost 1 : Torque boost 1

Function

If torque is inadequate at low speeds, increase torque by raising the torque boost rate with this parame- ter.

 

Base frequency voltage

 

 

 

 

Output voltage

[V]/(%)

 

 

 

 

 

 

Base frequency

Output frequency (Hz)

[Parameters]

 

 

 

 

Title

 

Function

Adjustment range

Default setting

 

 

 

 

 

 

 

Torque boost 1

0 30 (%)

 

According to model

 

 

(See section 11)

 

 

 

 

 

Valid for the standard default setting, 5.14 Setting the electronic thermal = 0 (V/F constant) and 1 (variable torque).

Note 1: The optimum value is programmed for each inverter capacity. Be careful not to increase the torque boost rate too much because it could cause an overcurrent trip at startup. If you are going to change the set values, keep them within ± 2% of the standard default values.

5.14 Setting the electronic thermal

Manual background : Electronic thermal protection characteristic selection Manual background : Motor electronic thermal protection level 1

Function

Selects the electronic thermal protection characteristics that fit with the ratings and characteristics of the

motor. This is the same parameter as the extended parameter Manual background . The set values will be the same no matter which one is changed.

E-18

Page 78
Image 78
Toshiba VF-S9 manual Manual torque boost - increasing torque at low speeds, Setting the electronic thermal, Torque boost