Troubleshooting; Error And Warning Details - Mitsubishi Electric MELSECQ Series User Manual

13 TROUBLESHOOTING

CHAPTER 13 TROUBLESHOOTING

13.1 Error and warning details

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This chapter describes the details of errors and warnings that may occur during use of
the QD70.
[1] Errors
Types of errors
Errors detected by the QD70 include parameter and OPR data setting range errors
and errors at the operation start or during operation.
(1) Parameter and OPR data setting range errors
The parameters and the OPR data are checked when the power is turned ON
and at the rising edge (OFF
signal [Y0]. An error will occur if there is a mistake in the parameter and the OPR
data setting details at that time.
When this kind of error occurs, the module READY signal does not turn ON.
To cancel this kind of error, set the correct value in the parameter and the OPR
data for which the error occurred, and then turn ON the Programmable controller
READY signal [Y0].
(2) Errors at the operation start or during operation
These are errors that occur at the operation start or during operation when the
OPR control, positioning control or JOG operation is used.
If an error occurs on any axis at a start, that axis does not start and " Md. 4 Axis
operation status" changes to "Error".
If an error occurs on any axis during operation, that axis decelerates to a stop
and "Md. 4 Axis operation status" changes to "Error".
Error storage
If an error occurs, the axis error occurrence signal turns ON and the error code
corresponding to the error definition is stored into "Md. 5 Axis error code".
Also, the bit of " Md. 10 Error status" corresponding to the error occurrence axis
turns ON.
Axis error
Axis No.
occurrence signal
1
2
3
4
X1
5
6
7
8
Refer to "Section 4.6 List of monitor data" for the setting details.
If another error occurs during axis error occurrence, the latest error code is ignored. However,
if any of the system-affecting errors (error codes: 800 to 840) occurs, the old error code is
overwritten by the newest error code.
(Error codes 800 to 840 are stored into "
search engine
ON) of the Programmable controller READY
" Md. 5 Axis error code"
Buffer memory
buffer memory address
77
177
277
377
477
577
677
777
Md. 5
Axis error code" of all axes.
MELSEC-Q
Md. 10 Error status
bit
address
0
1
2
3
1600
4
5
6
7
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