Mitsubishi Electric MELSEC-A0J2H Series Handbook page 189

10
REPLACING THE SPECIAL FUNCTION MODULE
I/O signal difference
Large point differences apart from I/O number differences are described below.
A0J2-D71
Watchdog error (X0)
OPR request (X6, X7)
Battery error (XA)
Error detection (XB) is common
with X-axis and Y-axis
OPR complete (XC, XD)
Positioning start interpolation
(Y12)
OPR start (Y13, Y14)
M code OFF (Y1B, Y1C)
No watchdog error signal is provided.
When a watch dog error occurs on the QD75P2, the QD75 ready (X0) turns OFF.
Check OPR request flag at Md.31 (bit 3).
If OPR request is on, it is set to '1'.
No battery error signal is provided.
QD75P2 has data stored in flash ROM, so memory backup batteries are not required.
Error detection is performed for each axis.
Axis 1: X8, Axis 2: X9
Check OPR complete flag at Md.31 (bit 4).
If OPR complete is on, it is set to '1'.
No interpolation start signal is provided.
On QD75P2, perform interpolation movement settings to the positioning data, and interpolation movement can
be performed by starting positioning.
No OPR start signal is provided.
On QD75P2, write "9001" to positioning start number Cd.3, and OPR can be performed by starting positioning.
M code OFF request is performed at Cd.7 .
Write "1" to switch the M code signal from ON to OFF.
QD75P2
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