Mitsubishi Electronics QD75P, QD75D Other functions, Step function, Step operation not possible

12CONTROL SUB FUNCTIONS

12.7 Other functions

MELSEC-Q

Other functions include the "step function", "skip function", "M code output function", "teaching function", "target position change function", "command in-position function", "acceleration/deceleration processing function", "pre-reading start function", "deceleration start flag function" and "stop command processing for deceleration stop function". Each function is executed by parameter setting or sequence program creation and writing.

12.7.1 Step function

The "step function" is used to confirm each operation of the positioning control one by one.

It is used in debugging work for major positioning control, etc.

A positioning operation in which a "step function" is used is called a "step operation". In step operations, the timing for stopping the control can be set. (This is called the "step mode".) Control stopped by a step operation can be continued by setting "step continue" (to continue the control)" or restarted by setting "restart" in the "step start information".

The details shown below explain about the "step function".

[1]Relation between the step function and various controls

[2]Step mode

[3]Step start information

[4]Using the step operation

[5]Control details

[6]Precautions during control

[7]Step function settings

[1]Relation between the step function and various controls

The following table shows the relation between the "step function" and various controls.

		Control type	Step function	Step applicability
OPR control	Machine OPR control			Step operation not possible
	Fast OPR control
		1-axis linear control
		2 to 4-axes linear interpolation control
	Position	1-axis fixed-feed control		Step operation possible
	control	2 to 4- axes fixed-feed control
Major		(interpolation)
		2-axis circular interpolation control
positioning
	1 to 4- axes Speed control			Step operation not possible
control
	Speed-position switching control
	Position-speed switching control			Step operation possible
	Other	Current value changing
		JUMP instruction, NOP instruction,
	control			Step operation not possible
		LOOP to LEND
Manual	JOG operation, Inching operation			Step operation not possible
control	Manual pulse generator operation

: Set when required. : Setting not possible

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