Mitsubishi Electric QD75MH1 User Manual page 628

12 CONTROL SUB FUNCTIONS
Positioning start signal
BUSY signal
M code ON signal
Cd. 7 M code OFF request
Md. 25 Valid M code
Positioning
Da. 1 Operation pattern
Fig. 12.40 Warning due to an M code ON signal during continuous path control
[Y10, Y11, Y12, Y13]
[XC, XD, XE, XF]
[X4, X5, X6, X7]
m1 and m3 indicate set M codes.
POINT
If the M code output function is not required, set a "0" in setting item "
code" of the positioning data.
[3] Precautions during control
(1) During interpolation control, the reference axis M code ON signal is turned
ON.
(2) The M code ON signal will not turn ON if "0" is set in "
M code will not be output, and the previously output value will be held in
Md.25
" Valid M code".)
(3) If the M code ON signal is ON at the positioning start, an error "M code
signal ON at positioning start (error code: 536)" will occur, and the
positioning will not start.
(4) If the PLC READY signal (Y0) is turned OFF, the M code ON signal will turn
OFF and "0" will be stored in "
(5) If the positioning operation time is short during continuous path control, there
will not be enough time to turn OFF the M code ON signal, and a warning "M
code signal ON (error code: 503)" may occur. In this case, set a "0" in the
Da.10
" M code" of that section's positioning data.
(6) In the AFTER mode during speed control, the M code is not output and the
M code ON signal does not turn ON.
(7) If current value changing where "9003" has been set to "
start No." is performed, the M code output function is made invalid.
ON
OFF
ON
OFF
ON
OFF
1
0 0
m2
m1
V
11 11
Md.25
12 - 71
MELSEC-Q
1 0
m3
00
Warning occurs at this timing.
Da.10
Valid M code".
Cd.3
t
Da.10
M
M code". (The
Positioning