Mitsubishi Electric Q12DCCPU-V - When no LED on an Output Module Turn on

16
TROUBLESHOOTING
16.2 Troubleshooting
16.2.11 When no LED on an output module turn on
16 - 20
9
DEVICE DESCRIPTION
10
MULTIPLE CPU SYSTEM OVERVIEW
11
MULTIPLE CPU SYSTEM CONFIGURATION
12
CONCEPT OF MULTIPLE CPU SYSTEM
13
COMMUNICATIONS BETWEEN CPU MODULES
14
PARAMETERS ADDED FOR MULTIPLE CPU SYSTEMS
15
STARTING A MULTIPLE CPU SYSTEM
16
TROUBLESHOOTING
16.2.11 When no LED on an output module turn on
The following flowchart shows the procedures to be taken when no LED on an output
module turn on during C Controller system operation.
POINT
Before using the following flowchart, check if the RUN LED on the C Controller
module is on.
If the RUN LED is off, set the C Controller module to RUN to turn on the RUN
LED.
Figure 16.10 When no LED of an output module turn on
Q12DCCPU-V
Q06CCPU-V
Q06CCPU-V-B
Does the output
number match?
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Is the MODE LED lit?
Is it on in <<Module information>>
of C Controller setting utility?
It is a hardware fault of the output
module.
Consult your local Mitsubishi service
center or representative, explaining the
details of the problem.
Change the output number.
Reexamine the user program.
Section 18.2.3
No LEDs on an output module
turn on.
Does the LED turn
on when another output
module is forced to
turn on?
Does the
LED turn on when
the output module is replaced with
another output module and is
forced to turn on
again?
It is a hardware fault of the C Controller
module, base unit and/or extension
cable.
Consult your local Mitsubishi service
center or representative, explaining the
details of the problem.
Page 16-5, Section 16.2.2