6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL

MELSEC-Q

Position control operation timing and process time

Positioning start signal

[Y10, Y11, Y12, Y13]

BUSY signal [XC, XD, XE, XF] t1

M code ON signal

 

(WITH mode) [X4, X5, X6, X7]

t2

 

Cd. 7 M code OFF request

 

 

 

Start complete signal

 

 

 

[X10, X11, X12, X13]

 

 

t3

 

 

 

Axis operation status

Waiting

Controlling position

Waiting

 

 

t4

 

Output pulse to external source

 

 

 

(PULSE)

 

 

 

Positioning operation

 

 

 

 

 

 

t5

Positioning complete signal

 

 

 

[X14, X15, X16, X17]

 

 

t6

M code ON signal

 

 

 

 

 

(AFTER mode)

 

 

 

[X4, X5, X6, X7]

 

 

t2

 

 

 

M code OFF request

OPR complete flag [ Md. 31 Status: b4]

Fig. 6.10 Position control operation timing and process time

When the positioning start signal turns ON, if all signals marked with an asterisk () are already ON, the signals marked with an asterisk () will turn OFF when the positioning start signal turns ON.

Normal timing time

 

 

 

 

Unit: ms

 

 

 

 

 

 

 

 

 

 

t1

 

t2

t3

t4

 

t5

t6

 

1.2 to

2.3

0 to 1.8

0 to 1.8

2.7 to

4.4

0 to 1.8

Follows

 

parameters

 

 

 

 

 

 

 

 

The t1 timing time could be delayed depending on the operating conditions of the other axis.

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Mitsubishi Electronics QD75D, QD75P user manual Position control operation timing and process time, Follows