Filter
Top Products
251
CHAPTER 14 TROUBLESHOOTING
14
14.3 Details of Errors
14.3.2 Storage of errors
14.3.2 Storage of errors
When an error occurs in the QD73A1, the corresponding error code is stored in the buffer memory.
(1) ERR.1 and ERR.2
Errors are classified into ERR.1 and ERR.2 depending on the error details.
(2) Buffer memory areas for error codes
The latest error codes are stored in the following buffer memory areas every time an error occurs, deleting the
previous error codes. When there is no error or when the errors were reset, "0" is stored.
14.3.3 Error reset
Eliminate the error cause according to the corrective action described in the error code list ( Page 252, Section
14.3.4), then cancel the error status by turning on Error reset signal (Y28).
At the time, the QD73A1 operates as follows.
Error classification Description
ERR.1 (minor errors)
Errors caused due to sequence programs.
Check the error code, and eliminate the error cause by correcting the sequence
program.
ERR.2 (major errors)
Hardware errors or errors caused due to control commands from external input
signals.
Check the error code, and eliminate the error cause on an external input signal.
Error classification Buffer memory area name Buffer memory address
Corresponding error
detection signal
ERR.1 (minor errors)
Error code (ERR.1)
104
Error detection signal (X18)
ERR.2 (major errors)
Error code (ERR.2)
105
1
Clears " Error code (ERR.1)" to 0.
2
Clears " Error code (ERR.2)" to 0.
3 Turns off Error detection signal (X18).
Md.3
Md.4
Md.3
Md.4