Yaskawa MP920 User's Manual Design - Manual (Page 498)

12 Troubleshooting
12.2.3 Processing Flow When a User Program Error Occurs
12-8
12.2.3 Processing Flow When a User Program Error Occurs
A serious failure has probably occurred if the RUN and ERR indicators are lit on the front
panel of the MP920. Use the following procedures to check the error program.
1 Check by Type of Serious Failure
Error Check the contents of SW00050 (Error Type) to determine if
the error is a system error or a user program error.
Check the contents of SW00055 (Program Type) to
determine if the error occurred in a drawing or in a function. 2 Check by Type of Error Program
Check the contents of SW00054 (Error Task) and SW00056
(DWG No.) to find the error drawing. 3 Check the Error Drawing
The error occurred in a function if SW00056 (DWG No.)
reads 01zzH.
Check the contents of SW00057 (Error Task) and SW00058
(DWG No.) to find the error drawing.
Check SW00059 (Function Referencing DWG Step No.) for
the STEP number where an operation error occurred. 4 Check the Error Function
Check the error count of all drawings at SW00080 to
SW00088. Operation errors are occurring if the count is
going up. 5 Check Whether an Operation
Error Occurred
Correct the program at the point where the error occurred. 7 Correct the Program
Check Error Details
Check error codes for drawings where the error count is
going up.
DWG.A: SW00111 DWG.H: SW00143
DWG.I: SW00127
DWG.L: SW00175
Check the DWG Number
Check the error DWG number for the DWG number where
an error occurred.
DWG.A: SW00122 DWG.H: SW00154
DWG.I: SW00138
DWG.L: SW00186
Check the Function Referencing DWG Number and
Function Referencing STEP Number if an error occurred
in a function.
DWG.A: SW001203, 4 DWG.H: SW00155, 6
DWG.I: SW00139, 40
DWG.L: SW00187, 8
6 Check the Details and Location
of Operation Errors