Mitsubishi QJ71LP21 User Manual

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MELSEC-Q
8 TROUBLESHOOTING
*1 : Characters in parentheses ( ) indicate the special register numbers where individual information is being
stored.
*6
: Stop/continue operation is selectable for each module by setting parameters.
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
1402
SP. UNIT
DOWN
Unit No.
Program error
location
Off/
On
Flicker/
On
Stop/
Continue
*6
When an
intelligent
function
module
access
instruction is
executed.
SP. UNIT
DOWN
Unit No.
Program error
location
Off/
On
Flicker/
On
Stop/
Continue
*6
During
execution of
FROM/TO
instruction set.
1403
SP. UNIT
DOWN
Unit No.
----
Off/
On
Flicker/
On
Stop/
Continue
*6
Always
SP. UNIT
DOWN
Unit No.
----
Off/
On
Flicker/
On
Stop/
Continue
*6
When an END
instruction
executed.

Mitsubishi QJ71LP21 Specifications

General

Brand	Mitsubishi
Model	QJ71LP21
Category	Controller
Language	English