MC_SetOverride

With the FB MC_SetOverride a weighting factor, which affects the commanded velocity, is set.

Block diagram

Parameter of the FB

VAR_IN_OUT
	Axis	AXIS_REF	Axis reference
VAR_INPUT
	Enable	BOOL	If this value is set to TRUE the weighting factor is applied to the commanded velocity.
	VelFactor	LREAL	Range [0.0 .. P-AXIS-00109/ 1000]
VAR_OUTPUT
	Enabled	BOOL	If this value signs TRUE the weighting factor at the input is continuously applied to the axis.
	Error	BOOL	Indicates if an error has occurred.
	ErrorID	WORD	Error identification.

Behavior of the FB

This function does not affect axes which reside in state ‘SYNCHRONIZED_MOTION’!
Note: Applications in packaging environment often consist of machine elements, that interact closely with other machine elements and are synchronized by a Cam/Gear-coupling. Loosing the synchronization of this coupling leads in many cases to severe machine damage. Therefore the implementation of the MCP prohibits that axis specific override has influence onto the Cam/Gear slave axis, because this violates the coupling directive.
‘VelFactor’ always may be set, if ISG-MCP has been initialised correctly.
If the value of ‘VelFactor’ is larger than P-AXIS-00109/1000 the value will be restricted to P-AXIS-00109/1000 (typical maximum value is 200%).
The given value at the input VelFactor is cyclically applied to the axis if the input Enable is set to TRUE. If Enabled changes from TRUE to FALSE the applying velocity weighting factor is set to the value which was set at the input VelFactor while the transition at the input Enabled occurred.