Toshiba TOSVERT VF-AS3 Instruction Manual page 330

High-performance industrial inverter for 3-phase motors, 3-phase 240v class 0.4 to 55kw, 3-phase 480v class 0.4 to 280kw

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■ Online auto-tuning setting

<F403: Online auto-tuning> is a function that automatically adjusts motor parameters by predicting

the increase in motor temperature.

• Online auto-tuning must be performed along with <F400: Offline auto-tuning>.

• Perform auto-tuning when the motor has cooled down (same temperature as the ambient

temperature).

7) Parameter setting

8) Selecting a setting value

1: Self-cooling motor auto-tuning

Set this value when the motor is equipped with a self-cooling fan (a type in which a fan is

directly connected to the motor shaft).

2: Forced air-cooling motor auto-tuning

Set this value when the motor is equipped with a fan motor (forced air-cooling).

6. [Advanced] How to use parameters

Parameter name

Online auto-tuning

• How to operate the operation panel -> Refer to [3. 1. 1].

• How to switch display mode on the operation panel -> Refer to [3. 1. 2].

• Procedure to change parameter setting -> Refer to [4. 2. 3]

Adjustment range

1: Self-cooling motor auto-tuning

2: Forced air-cooling motor auto-tuning

Default setting

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