Mitsubishi Electronics QD75D, QD75P Step mode, Deceleration unit step, Data No. unit step

12CONTROL SUB FUNCTIONS

[2]Step mode

MELSEC-Q

In step operations, the timing for stopping the control can be set. This is called

the "step mode". (The "step mode" is set in the control data "

mode".)

The following shows the two types of "step mode" functions.

(1) Deceleration unit step

Cd.34

Step

The operation stops at positioning data requiring automatic deceleration. (A normal operation will be carried out until the positioning data requiring automatic deceleration is found. Once found, that positioning data will be executed, and the operation will then automatically decelerate and stop.)

(2) Data No. unit step

The operation automatically decelerates and stops for each positioning data. (Even in continuous path control, an automatic deceleration and stop will be forcibly carried out.)

[3] Step start information

Control stopped by a step operation can be continued by setting "step continue" (to continue the control) in the "step start information". (The "step start

information" is set in the control data "

Cd.36

Step start information".)

The following table shows the results of starts using the "step start information" during step operation.

Stop status in the step			Axis operation		Step start
		Md.26		Cd.36		Step start results
operation			status		information
1 step of positioning	Step standing by			1: Step continue		The next positioning data is executed.
stopped normally

The warnings "Step not possible (warning code: 511)" will occur if the "

Md.26

Axis operation status" is as shown below or the step valid flag is OFF when step start information is set.

		Axis operation status
	Md.26		Step start results
Standing by
Stopped
In interpolation
In JOG operation
In manual pulse generator operation
Analyzing
Waiting for special start			Step not continued by warning
In OPR
In position control
In speed control
In speed control of speed-position switching control
In position control of speed-position switching control
In speed control of position-speed switching control
In position control of position-speed switching control

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