Automatic Torque Boost (Pr. 38, Pr. 39); Up-To-Frequency Sensitivity (Pr. 41) - Mitsubishi Electric FR-F500 Series Instruction Manual

Transistorized inverter
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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
38
39

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

Pr. 41 "up-to-frequency sensitivity"
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
Number
Setting
41
10%
Note: 1. When terminal assignment is changed using Pr. 190 to Pr. 195, the other functions may be
affected. Check the functions of the corresponding terminals before making setting.
Setting Range
0
0 to 200
0
0 to 500
Setting Range
0 to 100%
Running frequency
Output signal
SU
OFF
ON
85
PARAMETERS
Setting Capacity
Set the boost compensation (%).
Setting "0" makes the automatic torque boost inoperative.
Normally set "100" (%) to make the automatic torque boost
operative
Set the automatic torque boost operation starting current (A).
Normally set "0" (A).
Related parameters
Pr. 190 to Pr. 195
(output terminal function selection)
Adjustable range
Pr.41
Time
OFF
4

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