8 - 23
MELSEC-A
8 ZERO POINT RETURN CONTROL
Start time chart
Zero point absolute position underflow flag
[ Md.40 Status:b12]
Zero point absolute position overflow flag
[ Md.40 Status:b11]
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
100
OFF
OFF
V
t
ON
OFF
Positioning start signal
PLC READY signal
AD75 READY signal
Start complete signal
BUSY signal
Error detection signal
Cd.11 Positioning start No.
[Y1D]
[X0]
[X1]
[Y10]
[X4]
[XA]
Fig. 8.17 Start time chart for positioning to the zero point
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