Mitsubishi Electric MELSEC-Q Series User Manual page 684

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Table of Contents

Positioning start signal

[Y10 to Y1F]

[X10 to X1F]

M code ON signal

( Md. 31 Status: b12)

Cd. 7 M code OFF request

Md. 25 Valid M code

Da. 1 Operation pattern

1: m1 and m3 indicate set M codes.

Fig. 13.42 Warning due to an M code ON signal during continuous path control

If the M code output function is not required, set a "0" in setting item "[Da.10] M

code /Condition data No./Number of LOOP to LEND repetitions" of the positioning

[3] Precautions during control

(1) During interpolation control, the reference axis M code ON signal is turned

(2) The M code ON signal will not turn ON if "0" is set in "[Da.10] M

code/Condition data No./Number of LOOP to LEND repetitions". (The 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, the error "M code ON

signal 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 "[Md.25] Valid M code".

(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 the

warning "M code ON signal ON" (warning code: 503) may occur. In this

case, set a "0" in the "[Da.10] M code/Condition data No./Number of LOOP

to LEND repetitions" 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 "[Cd.3] Positioning

start No." is performed, the M code output function is made invalid.

Chapter 13 Control Sub Functions

Warning occurs at this timing.