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MELSEC-Q
13 TROUBLESHOOTING
[2] Warnings
Types of warnings
A warning occurs during OPR control, positioning control or JOG operation.
If a warning occurs, operation is continued. Also, if a warning occurs, "
Md. 4
Axis
operation status" remains unchanged.
Warning storage
If a warning occurs, the axis warning occurrence signal turns ON and the warning
code corresponding to the warning definition is stored into "
Md. 6
Axis warning
code".
Also, the bit of "
Md. 11
Warning status" corresponding to the warning occurrence
axis turns ON.
Md. 11
Warning status
Axis No.
Axis warning
occurrence signal
"
Md. 6
Axis warning code"
buffer memory address
Buffer memory
address
bit
1780
2 178 1
3 278 2
4 378 3
5 478 4
6 578 5
7 678 6
8
X2
778
1601
7
Refer to "Section 4.6 List of monitor data" for the setting details.
The latest error code is always stored.
[3] Resetting errors and warnings
Setting "1" in "
Cd. 1
Axis error reset" performs the following processing and then
cancels the error/warning status.
• The axis error occurrence signal (X1) is turned OFF ("1" is set in
Cd. 1
of all
axes).
• The axis warning occurrence signal (X2) is turned OFF ("1" is set in
Cd. 1
of all
axes).
• "
Md. 4
Axis operation status" changes from "Error" to "Standby".
• "
Md. 5
Axis error code" is cleared to zero.
• "
Md. 6
Axis warning code" is cleared to zero.
[4] Confirming the error and warning definitions
The error and warning definitions can be confirmed in "
Md. 5
Axis error code" and
"
Md. 6
Axis warning code". To confirm them, GX Developer or GX Configurator-PT
is needed. For details, refer to "Section 13.5 Confirming the error definitions using
system monitor of GX Developer" or "CHAPTER 6 UTILITY PACKAGE (GX
Configurator-PT)". (Refer to Section 13.2 and Section 13.3 for details of the error
codes and warning codes.)
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