Chapter15 Troubleshooting; Troubleshooting Flow - Mitsubishi MELSEC-Q Series User Manual

15
TROUBLESHOOTING

CHAPTER15 TROUBLESHOOTING

This chapter describes the description of errors regarding the QD72P3C3 and
troubleshooting for it.
15.1

Troubleshooting Flow

Check whether other modules have an error
or not.
15
- 1 15.1 Troubleshooting Flow
Error occurrence
RUN LED turns OFF.
No
ERR. LED turns ON.
No
AX LED flashes after
ERR. LED flashes.
No
The
axis/CH warning occurrence
signal (Y4 to Y6) is turned ON.
No
Md.3 Count value
is not normal.
No
Coincidence detection
interrupt does not occur.
No
Yes
Refer to Section 15.1.1 When the RUN
Refer to "Section 15.1.1 When the RUN
LED turns OFF.
LED turns OFF".
Yes
Refer to Section 15.1.2 When the
Refer to "Section 15.1.2 When the ERR.
ERR.LED turns ON.
LED turns ON".
Yes
Refer to Section 15.1.3 When the AX
Refer to "Section 15.1.3 When the AX LED
LED flashes after the ERR.LED flashes.
flashes after the ERR. LED flashes".
Yes
Refer to Section 15.1.4 When the axis/CH
Refer to "Section 15.1.4 When the axis/CH
warning occurrence signal (X4 to X6)
warning occurrence signal (Y4 to Y6) is
turns ON.
turned ON".
Yes
Refer to Section 15.1.5 When the count
Refer to "Section 15.1.5 When the count
operation is not executed, or not executed
operation is not executed or not executed
normally. normally".
Yes
Refer to Section 15.1.6 When the
Refer to "Section 15.1.6. When the
coincidence detection interrupt does not
coincidence detection interrupt does not
occur. occur".