PARAMETERS

4.2.18 Automatic torque boost (Pr. 38, Pr. 39)

Pr. 38 "automatic torque boost"

Pr. 39 "automatic torque boost operation starting current"

Used to detect the load current to control the output voltage (torque) of the inverter automatically.

Parameter Number

Factory Setting

Setting Range

Setting Capacity

 

 

 

Set the boost compensation (%).

38

0

0 to 200

Setting "0" makes the automatic torque boost inoperative.

Normally set "100" (%) to make the automatic torque boost

 

 

 

 

 

 

operative

39

0

0 to 500

Set the automatic torque boost operation starting current (A).

Normally set "0" (A).

 

 

 

4.2.19 Up-to-frequency sensitivity (Pr. 41)

Pr. 41 "up-to-frequency sensitivity"

Related parameters

Pr. 190 "RUN terminal function selection"

Pr. 191 "SU terminal function selection" Pr. 192 "IPF terminal function selection" Pr. 193 "OL terminal function selection" Pr. 194 "FU terminal function selection" Pr. 195 "A, B, C terminal function

selection"

The ON range of the up-to-frequency signal (SU) output when the output frequency reaches the running frequency can be adjusted between 0 and ± 100% of the running frequency.

This parameter can be used to ensure that the running frequency has been reached or used as the operation start signal etc. for related equipment.

Parameter

Factory

Setting Range

Number

Setting

 

41

10%

0 to 100%

(Hz)

Running frequency

 

4

 

 

Output frequency

 

 

Adjustable range Pr.41

 

 

Time

 

Output signal

 

 

 

 

SU

OFF

ON

OFF

 

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Image 96
Mitsumi electronic 55K Automatic torque boost Pr , Pr, Up-to-frequency sensitivity Pr, Pr up-to-frequency sensitivity, 10%