Mitsubishi Electric Q12DCCPU-V - When the POWER LED on the Power Supply Module Turned off

16
TROUBLESHOOTING
16.2 Troubleshooting
16.2.1 When the POWER LED on the power supply module turned off
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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
16.2.1 When the POWER LED on the power supply module turned off
The following flowchart shows the procedures to be taken when the POWER LED of the
power supply module turns off at the time of power-on or during operation of the C
Controller module.
Figure 16.1 When the POWER LED of the power supply module turned off
Q12DCCPU-V
Q06CCPU-V
Q06CCPU-V-B
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
Yes
Yes
No
No
Is power
being supplied?
Is the power voltage
within the specified range?
The POWER LED turned off.
Supply power.
Is the power
supply module fixed?
Please consult your local
Mitsubishi service center or
representative, explaining the
details of the problem.
Yes
Change the supply voltage so that it
falls within the rated range.
Fix the power supply module
securely.
Turn off the input power supply.
Remove the cause (e.g. insufficient
power capacity, short circuit). Turn it
on after several minutes.
End
Is the overcurrent or
overvoltage protection
inactive?
Did the POWER LED turn on?
Did the POWER LED turn on?
Did the POWER LED turn on?
Did the POWER LED turn on?