Yaskawa MP2000 Series: Built-in SVB or SVB-01 Motion Module - Manual (Page 453)

12.2 Troubleshooting System Errors
12.2.3 Correcting User Program Errors
12-10
12.2.3 Correcting User Program Errors
A serious error may have occurred if the ALM and ERR indicators on the front of the Machine Controller Basic Mod-
ule are lit red. Set the Machine Controller in stop status (STOP switch on DIP switch 6: ON) and investigate the error.
Use the following procedure to investigate ladder program errors.
When the ERR LED Lights Up
When the ALM LED Lights Up
(1) Investigate type of serious
error Check the contents of SW00050 (Error Type) to determine if the type of the
serious error is a system error or a user program error.
(2) Investigate type of program in
which there is an error Check the contents of SW00055 (Program Type) to determine if the error is in a
drawing or function.
(3) Investigate the drawing with
the error Check the contents of SW00054 (Error Task) and SW00056 (Drawing Number)
to determine the drawing with the error.
(4) Investigate the function with
the error
If SW00056 (Drawing Number) contains 0100H, the error is in a function.
Check the contents of SW00057 (Error Task) and SW00058 (Drawing Number)
to determine the drawing with the error.
Check the contents of SW00059 (Function Referencing Drawing Step No.) to
determine the step number with the operation error.
(5) Correct the program Correct the program at the point where the error occurred.
(1) Check to see whether an oper-
ation error has occurred Check the error count for each drawing in SW00080 to SW00088. If errors
have been counted, an operation error has occurred. Go to (2).
(2) Investigate the type of opera-
tion error and its location
If an operation error occurs, the 00
(H00, L00, I00, and A00) drawings
will execute. These drawings can
also be used to correct or confirm
operation.
1. Check Error Details
Check error codes for drawings where the error is counted.
DWG.A: SW00111, DWG.H: SW00143
DWG.I: SW00127, DWG.L: SW00175
2. Check the Drawing Number
Check the error drawing number for the drawing number where an error
occurred.
DWG.A: SW00122, DWG.H: SW00154
DWG.I: SW00138, DWG.L: SW00186
3. Errors in Functions
Check the Function Referencing Drawing Number and Function Referencing
STEP Number.
DWG.A: SW00123, SW00124, DWG.H: SW00155, SW00156
DWG.I: SW00139, SW00140, DWG.L: SW00187, SW00188
(3) Correct the Program Correct the program at the point where the error occurred.