9 MAJOR POSITIONING CONTROL

MELSEC-Q

Operation chart

The following chart (Fig.9.16) shows the operation timing for speed-position switching control (ABS mode). The "in speed control flag" ( Md.31 Status: b0) is

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

V

Da. 8 Command speed

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

 

 

 

t

 

 

Speed control Position control

Dwell time

 

 

ON

 

 

 

OFF

 

Positioning start signal

 

 

 

[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

ON

OFF

Cd. 24 Speed-position

switching enable flag

ON

In speed control flag

OFF

 

Md. 31 Status: b0

 

 

 

Fig. 9.16 Speed-position switching control (ABS mode) operation timing

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Image 391
Mitsubishi Electronics QD75D, QD75P user manual X14,X15,X16,X17, Cd Speed-position Switching enable flag Speed control flag