Danfoss VLT 5000 Series Instructie - Pagina 2

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Introduction

The wobble function is primarily used for synthetic

yarn winding applications. The wobble option is to be

installed in the VLT controlling the traverse drive. The

traverse drive VLT will move the yarn back and forth

in a diamond pattern across the surface of the yarn

package. To prevent a buildup of yarn at the same

points at the surface, this pattern must be altered.

The wobble option can accomplish this by continu

ously varying the traverse velocity in a programmable

cycle.

Parameter description

100

Configuration (CONFIG. MODE )

Value:

Speed regulation, open loop

(SPEED OPEN LOOP)

Speed regulation, closed loop

(SPEED CLOSED LOOP)

Process regulation, closed loop

(PROCESS CLOSED LOOP)

Torque regulation, open loop

(TORQUE OPEN LOOP)

Torque regulation, speed feedback

(TORQUE CONTROL SPEED)

Function:

The parameter is used for selecting the

configuration to which the VLT frequency converter is

to be adapted. This parameter is identical to

parameter 100 in the standard VLT5000 software.

Description of choice:

The wobble function can be active only by selecting

Speed, open loop mode [0]. The wobble option

parameters: 700 - 709 are not visible in the other

modes.

VLT

Series 5000 Wobble function

The wobble function is created by superimposing a

delta frequency around a center frequency. To com

pensate for the inertia in the system a quick fre

quency jump can be included. Especially suitable for

elastic yarn applications the option features a ran

domized wobble ratio.

700

Wobble mode (WOBB MODE)

Value:

Wobble mode OFF (OFF)

[0]

Wobble mode ON (ON)

[1]

Function:

The standard speed open loop mode set in

[3]

parameter 100 is extended with a wobble function.

In this parameter it is possible to select or

[4]

deselect the wobble function. Deselecting the

wobble function makes the drive operate in the

standard speed open loop mode.

[5]

Description of choice:

Select OFF [0] to disable the wobble function. The

speed open loop mode acts as in the standard

VLT5000 software.

Select ON [1] to enable the wobble function.

W W W W W ar ar ar ar arning:

ning:

This parameter can be set while running.

MI.50.J1.02 - VLT is a registered Danfoss trademark

[0]

[1]