MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 608)

15 - 4
MELSEC-Q
15 TROUBLESHOOTING
Warning storage
(1) When an axis warning occurs, the warning code corresponding to the warning
details is stored in the following buffer memory ( Md.24 Axis warning No.) for
axis warning No. storage.
Axis No. Buffer memory address
1 807
2 907
3 1007
4 1107
(2) When an axis warning occurs in a positioning operation, etc., "1" is set in bit 9
(b9) of the following buffer memory ( Md.31 Status) for axis status storage.
Axis No. Buffer memory address
1 817
2 917
3 1017
4 1117
[3] Resetting errors and warnings
An error or warning state is canceled after the following processing has been
carried out by setting a "1" in the address [1502 (for axis 1)], [1602 (for axis 2)],
[1702 (for axis 3)], and [1802 (for axis 4)] of the buffer memory for axis error
resetting ( Cd.5 Axis error reset).
• Axis error detection signal turned OFF
•
" Md.23 Axis error No." cleared
•
" Md.24 Axis warning No." cleared
•
Changing of " Md.26 operation status" from "Error" to "Standby".
• " Md.31 Axis warning detection (b9)" turned OFF
[4] Invalid operations
For the following operations, the setting details will be invalidated, and an error or
warning will not occur.
•
Speed change during machine OPR
• Speed change before operation
(Speed override change, skip command, continuous operation interruption
request, target position change request)
•
Axis stop during axis stop
• Axis sudden stop during axis stop
• Axis stop before axis operation
• Axis sudden stop before axis operation
[5] Confirming the error and warning definitions
The error and warning definitions can be confirmed with the error and warning
codes. Confirming them requires GX Developer or GX Configurator-QP. For
details, refer to GX Developer Operating Manual or GX Configurator-QP
Operating Manual. (Refer to Section 15.2 and Section 15.3 for details of the error
and warning codes.)