ST_StartMovementToRefPosition

ST_StartMovementToRefPosition - General Information

Overview

Type:	Data structure
Available as of:	V1.0.0.0
Inherits from:	-

Description

This structure contains the parameters and feedback data for the start movement behavior of the FB_Unwinder to move the dancer to its reference position.

The dancer is moved to its reference position while the feeder is at stand still. It can be chosen if a measurement movement should be performed first, or not. If a measurement movement shall be done, then the dancer is moved to its maximum position (where the minimum amount of foil is in the dancer) and afterwards to its minimum position (where the maximum amount of foil is in the dancer). At the extreme points, the dancer waits a while to calm down the noise which may be on the foil due to the movement. The movement parameters are defined on the circumference of the bobbin based on the specified radius. The movement distance of the bobbin and the dancer between the extreme of the dancer is measured and the radius of the bobbin is calculated.

Afterwards the dancer is moved to its reference position.

Structure Elements

Variable	Data type	Description
i_lrVelocity	LREAL	The velocity to move to reference position in units of foil per second, based on the radius of the bobbin.
i_lrAcceleration	LREAL	The acceleration to move to reference position in units of foil per second², based on the radius of the bobbin.
i_lrDeceleration	LREAL	The deceleration to move to reference position in units of foil per second², based on the radius of the bobbin.
i_lrJerk	LREAL	The jerk to move to reference position in units of foil per second³, based on the radius of the bobbin.
iq_xRadiusMeasurement	BOOL	FALSE: The dancer is directly moved to the reference position. TRUE: Before the dancer is moved to its reference position, it is moved to its high position first and then to its low position. During this movement, the radius of the bobbin is calculated while the feeder is at stand still. Afterwards the dancer is moved to its reference position.
i_lrMaxStartDistance	LREAL	The maximum distance in units of the foil, based on the radius to move to the dancer extreme positions when iq_xRadiusMeasurement is set to TRUE. If the dancer extreme position is not reached within this distance, an error is triggered.
i_lrMaxLevelBuffer	LREAL	Buffer around the extreme position of the dancer in percentage of the whole dancer movement area so that the mechanic is not harmed.