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VF-FS1 Industrial Inverter - Toshiba

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6<br />

Prohibited<br />

• Function<br />

This parameter allows selection of the appropriate electronic thermal protection characteristics<br />

according to the particular rating and characteristics of the motor.<br />

F-58<br />

E6581381<br />

[Parameter setting]<br />

Title Function Adjustment range Default setting<br />

<br />

Motor electronic thermal protection<br />

level 1<br />

10-100 (%) / (A) 100<br />

<br />

Motor electronic thermal protection<br />

level 2<br />

10-100 (%) / (A) 100<br />

Motor 150%-overload time limit 10-2400 (s) 300<br />

Motor electric-thermal protection<br />

<br />

retention selection<br />

⇒ For more details, see section 5.12.<br />

0: Disabled<br />

1: Enabled<br />

Note: The 100% standard value is the rated output current indicated on the nameplate.<br />

6.17.2 Setting current stall<br />

: Stall prevention level 1<br />

: Stall prevention level 2<br />

Caution<br />

• Do not set the stall prevention level () extremely low.<br />

If the stall prevention level parameter () is set at or below the no-load current of the motor, the<br />

stall preventive function will be always active and increase the frequency when it judges that<br />

regenerative braking is taking place.<br />

Do not set the stall prevention level parameter () below 30% under normal use conditions.<br />

• Function<br />

This parameter adjusts the output frequency by activating a current stall prevention function against a<br />

current exceeding the -specified level.<br />

[Parameter setting]<br />

Title Function Adjustment range Default setting<br />

<br />

<br />

Stall prevention level 1<br />

Stall prevention level 2<br />

10-110 (%) / (A). 110<br />

0

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