EasyManuals Logo

Mitsubishi QJ71LP21 User Manual

Mitsubishi QJ71LP21
422 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #354 background imageLoading...
Page #354 background image
8 - 143 8 - 143
MELSEC-Q
8 TROUBLESHOOTING
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*4 : This can only be detected in the redundant system control system.
Error
Code
(SD0)
*1
Error
Messages
Common
Information
(SD5 to 15)
Individual
Information
(SD16 to 26)
LED Status Operating
Statuses
of CPU
Diagnostic
Timing
RUN ERROR
6220
CAN'T EXE.
CHANGE
*4
Reason(s) for
system
switching
---- On On Continue
At switching
request
CAN'T
SWITCH
Reason(s) for
system
switching
Reason(s) for
system
switching
failure
On On Continue
At switching
execution
6221
CAN'T EXE.
CHANGE
*4
Reason(s) for
system
switching
---- On On Continue
At switching
request
6230
DUAL SYS.
ERROR
---- ---- On On Continue Always

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Mitsubishi QJ71LP21 and is the answer not in the manual?

Mitsubishi QJ71LP21 Specifications

General IconGeneral
BrandMitsubishi
ModelQJ71LP21
CategoryController
LanguageEnglish

Related product manuals