HP 30 30 User Manual download pdf (Page 114)

Chapter 6 - Parameter Description [FU2]

6-22

This parameter affects the audible sound of the motor,

noise emission from the inverter, inverter termperature,

and leakage current. If the ambient temperature where the

inverter is installed is high or other equipment may be

affected by potential inverter noise, set this value lower. If

set above 10kHz, use it by reducing 5%[1kHz] of the rated

current. Setting Carrier freqeuncy set below 2.5[kHz] when

the FU2-39 [Control mode selection] is set to Vector_SPD,

Vector_TRQ could weaken the control performance.

FU2-39: Control mode selection

 Selects the control mode of the inverter

FU2-40 setting LCD Display Description

0 V/F V/F Control

1 Slip compen Slip compensation

2 Sensorless_S

Sensorless vector

control speed operation

3 Sensorless_T

Sensorless vector

control torque operation

4 Vector_SPD

Vector control speed

operation

5 Vector_TRQ

Vector control torque

operation

Note) Setting Vector_SPD, Vector_TRQ is only valid when

the inverter is equipped with SUB-B board and EXT-12[F

mode] is set to Feed-back. Vector control comprises of

Vector_SPD, Vector_TRQ with secsorless vector

Sensorless_S and Sensorless_T.

 V/F control:

This parameter controls the voltage/frequency ratio

constant. It is recommended to use the torque boost

function when a greater starting torque is required.

Related function : FU1-26~28 [Torque boost]

 Slip compensation :

This function is used to maintain constant motor speed. To

keep the motor speed constant, the output frequency

varies within the limit of slip frequency set in FU2-32

according to the load current. For example, when the

motor speed decreases below the reference speed

(frequency) due to a heavy load, the inverter increases the

output frequency higher than the reference frequency to

increase the motor speed. The inverter increases or

decreases the output by delta frequency shown below.

Delta freq = Rated slip * (Output current - Motor No

load current) / rated current - Motor No load current)

Output freq = Reference freq + Delta freq

☞ : Motor parameters must be set correctly for better

performance of control.

FU2-32~36 [Motor related parameters] is automatically

determined by FU2-30 [Rated Motor selection]. Most

suitable motor capacity corresponding inverter capacity is

set as factory setting, but the following setting value can be

adjusted if necessary.

Related parameter :FU2-30~37 [Motor related parameters]

Code LCD Display Description

FU2-30 Motor select Select motor capacity

FU2-32 Rated-Slip Motor rated slip (Hz)

FU2-33 Rated-Curr Motor rated current (rms)

FU2-34 Noload-Curr Motor no load current (rms)

FU2-36 Efficiency Motor efficiency (%)

FU2-37 Inertia rate Motor inertia rate

 Sensorless_S (Sensorless vector speed control)

operation :

Use it when 1) high starting torque needed at low speed 2)

load fluctuation is high 3) rapid response needed.

If not using CMC 220V/440V Class motor: Set Yes in FU2-

40 [Auto tuning] first.

Vector_SPD (Vector control speed) operaation : only valid

when Sub-B board is mounted (Speed-detecting Encoder

installed to the motor).

FU2

►

Control mode

39 V/F

0 39

Factory Default: V/F 0

Related parameters : FU2-30~37 [Motor related parameters]

FU2-41~44 [Motor constant]

FU2-45~46 [P/I gain for Sensorless]

EXT-25~26 [P/I gain for Vector_SPD],

EXT-27~28 [Torque limit for

Vector_SPD]

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 217 218

HP 30 30 User Manual Page 114

Comments to this Manuals

HP 30 30 User Manual Page 114

Comments to this Manuals

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