MC_GearIn (FB)

FUNCTION_BLOCK MC_GearIn

This function block commands a ratio between the velocity of the slave and master axis.

• The slave ramps up to the ratio of the master velocity and locks in when this is reached. Any lost distance during synchronization is not caught up.

• The gearing ratio can be changed while MC_GearIn is running by a rising edge at “Execute” or by using a consecutive MC_GearIn command without the necessity to MC_GearOut first

• InGear is set the first time the ratio is reached.

• After being InGear, a position locking is performed.

Example of GearIn timing diagram

InOut:

Scope	Name	Type	Comment
Input	Execute	BOOL	Starts the function block at rising edge
	RatioNumerator	DINT	Gear ratio numerator, new value is updated only with rising edge of Execute input
	RatioDenominator	DINT	Gear ratio denominator, new value is updated only with rising edge of Execute input
	MasterValueSource	MC_Source	Decide to use the actual position or reference position of master axis
	Acceleration	LREAL	[u/s°°2] Value of the acceleration (increasing energy of the motor), just applied until “insync” is reached. Range: >0. If value = 0, Acceleration will be equal to parameter paraMaxAccelerationAppl.If value > 0 and <= 1,Acceleration will be limited to 1.
	Deceleration	LREAL	[u/s°°2] Value of the deceleration (decreasing energy of the motor), just applied until “insync” is reached. Range: >0. If value = 0, Deceleration will be equal to parameter paraMaxDecelerationAppl.If value > 0 and <= 1,Deceleration will be limited to 1.
	BufferMode	MC_BufferMode	Not supported, default mcABORTING used
Output	InGear	BOOL	Commanded gearing completed
	Busy	BOOL	The function block is not finished
	Active	BOOL	Indicates that the function block has control on the axis
	CommandAborted	BOOL	Command is aborted by another command from other PLCopen function block
	Error	BOOL	Signals that error has occurred within function block
	ErrorID	ERROR_ID	Error identification. For error details refer to Enumeration ERROR_ID
Inout	Master	Axis_Ref	Reference to master axis
	Slave	Axis_Ref	Reference to slave axis