FB_AxisInvBase

This FB creates an axis operated with an inverter. This type of axis is designed for use with drive components whose functionality excludes the positioning tasks of a servo axis. Therefore, this type of axis is suitable for particularly simple speed-based tasks, such as rotating an extruder or feeding a conveyor belt. The axis does not require position feedback and does not support position-dependent Corefunctions.

Syntax:

Runtime-based:

fbInvAxis:        FB_AxisInvBase('', 0, 0, 0, 0);

// Initialization code
fbInvAxis.Name := 'InverterAxis1';
fbInvAxis.Device := fbDeviceCoE;    // e.g. FB_InverterCoE402_VM

Declarative (outdated):

fbInvAxis:  FB_AxisInvBase
            (
                AxisName        := 'InverterAxis1',
                nPtpPoints      := 0,
                iProcessHandler := 0,
                iPosCamLookup   := 0,
                iVeloCamLookup  := 0
            );

Connection options (I/Os)

Name	Type	Description
Device	I_InvDevice	Field device used to control the axis
PressureControl.Supervisor.Sensor	I_InputBase	Interface to a pressure sensor for pressure control.
Limiting.Output	I_LimitingOutput	Interface for the connection of limit outputs (e.g., torque or pressure).

Initialization parameters of the FB_init constructor

Name	Type	Description
AxisName	STRING	The text-based name of the axis. Used for messages and file names, among other things. The name can also be set via `.Name`.
nPtpPoints	INT	Not supported for inverter axes
iProcessHandler	I_ProcessHandler	A function block for handling pressures and other process variables. Outdated implementation! This input must be set to zero, since the availability of pressure control is already high in PressureControl.Supervisor without requiring an external assignment.
iPosCamLookup	I_CammingLookup	Not supported for inverter axes
iVeloCamLookup	I_CammingLookup	An interface to an external instance with a speed cam plate. Outdated implementation! This entry must be set to “zero” because a cam plate is already available at Camming.Velo.LookUp without an external assignment.

Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT v3.1.4024.55	PC or CX (x64, x86)	Tc3_PlasticFunctions (>= v3.12.5.0)