9 MAJOR POSITIONING CONTROL

MELSEC-Q

Operation chart

The following chart (Fig.9.13) shows the operation timing for speed-position switching control (INC mode). The "in speed control flag" ( Md.31 Status: b0) is

turned ON during speed control of speed-position switching control (INC mode).

V

Da. 8 Command speed

Movement amount set in " Da. 6 Positioning address/movement amount"

 

 

 

t

 

 

Speed control Position control

Dwell time

 

 

ON

 

Positioning start signal

OFF

 

 

 

 

[Y10,Y11,Y12,Y13]

 

 

 

ON

 

BUSY signal

 

OFF

 

[XC,XD,XE,XF]

 

 

 

 

 

 

ON

Positioning complete signal

OFF

 

 

 

 

[X14,X15,X16,X17]

 

ON

OFF

Speed-position switching signal

Cd. 24 Speed-position switching enable flag

ON

OFF

ON

In speed control flag

OFF

 

Md. 31 Status: b0

 

 

 

Fig. 9.13 Speed-position switching control (INC mode) operation timing

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Image 383
Mitsubishi Electronics QD75D, QD75P user manual Operation chart, Md Status b0