MC_SetOverride

Description

This function block writes the velocity override factor. A change in the velocity override factor takes effect immediately on the active move.

The velocity override factor is applied to the programmed velocity (of a MC_MoveAbsolute, MC_MoveAdditive, MC_MoveRelative, MC_MoveSuperimp, or MC_MoveVelocity function block) to determine the command velocity:

command velocity = programmed velocity * VelFactor

MC_SetOverride

Figure 7-137: MC_SetOverride

Arguments

For more detail on how inputs and outputs work, refer to PLCopen Function Blocks - General Rules

Input

Enable	Description	Request to write the override factors
	Data type	BOOL
	Range	0, 1
	Unit	N/A
	Default	—
Axis	Description	Name of a declared instance of the AXIS_REF library function. For more details,About Axis Name and Number
	Data type	AXIS_REF
	Range	[1,256]
	Unit	N/A
	Default	—
VelFactor	Description	Velocity override factor
	Data type	REAL
	Range	[0.0, 2.0]
	Unit	N/A
	Default	—

Output

Enabled	Description	Indicates the override values have been written
	Data type	BOOL
Busy	Description	Indicates the function block is executing
	Data type	BOOL
Error	Description	Indicates an invalid input is specified
	Data type	BOOL
ErrorID	Description	Indicates the error if Error output is set to TRUE See table in PLCopen Function Block ErrorID Output
	Data type	INT

Example

Structured Text

            (* MC_SetOverride ST example *)
            
VelFactor := 1.25 ;   //set the velocity factor to 1.25 (125%)
Inst_MC_SetOverride( TRUE , Axis1, VelFactor ); // Inst_MC_Setoverride is an instance of MC_SetOverride

Ladder Diagram

MC_SetOverride: LD example

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