Chapter 4 – Function Settings

FU2-40

Description

 

 

No

Motor constants calculation disabled

 

 

 

All constants can be measured in this code but different constants are tuned

 

according to control mode type;

 

For V/F, Slip compen , Sensorless_S, Sensorless_T:

 

(No-load current, stator resistance, leakage inductance, stator inductance

All

available)

 

Note) Only no-load current can be calculated during V/F and Slip compensation.

 

For Vector_SPD, Vector_T:

 

No-load current, stator resistance, leakage inductance, stator inductance,

 

encoder test, rotor filter time constant

Rs+Lsigma

Calculate stator resistance, leakage inductance

 

 

Enc Test

Calculate the encoder status

 

 

Tr

Calculate Rotor filter time constant

 

 

6) Sensorless vector control

Set FU2-39 to 2 {Sensorless_S} or 3 {Sensorless_T} to enable Sensorless vector control. It is strongly recommended to perform Auto-tuning for Sensorless before starting Sensorless control in order to maximize performance. Two types of Sensorless vector control are available; Sensorless_S or Sensorless_T.

Parameter Name

Code

Description

 

 

 

Control mode selection

FU2-39

Select Sensorless_S or Sensorless_T

 

 

 

P, I gain for sensorless

FU2-45, FU2-46

Setting gain for Sensorless_S control

control

 

 

Starting freq

FU1-22

Starting freq of the motor

 

 

 

7) Vector control

Set FU2-39 to 4 {Vector_SPD} or 5{Vector_TRQ} to enable Vector control. Encoder should be installed to the motor with Sub-B or Sub-D boards in the inverter to start this control.

Parameter Name

Code

Description

 

 

 

Usage of Pulse Input

EXT-12

Defines the method of pulse input with SUB-B or SUB-D

boards mounted. Vector control setting is valid only after

Signal

 

this parameter is set to 1 {Feed-back}.

 

 

Pulse Input Signal

EXT-15

3 types of pulse input : (A+B), A, -(A+B)

Selection

 

 

 

Encoder Pulse Number

EXT-16

Enter the pulse number of encoder in the motor.

 

 

 

4-3

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Image 49
HP 30 30 Function Settings FU2-40 Description, For V/F, Slip compen , SensorlessS, SensorlessT, For VectorSPD, VectorT