Mitsubishi Electric Q12DCCPU-V User Manual page 474

16
TROUBLESHOOTING
16.2 Troubleshooting
If a problem has occurred in the C Controller module, first conduct a hardware self-
diagnostics to check the C Controller module itself for a hardware failure. (
75, Section 16.5)
See the following table and refer to the relevant troubleshooting flowchart.
No.
1 The POWER LED on the power supply module turned off.
2 The MODE LED on the C Controller module is not lit.
The ERR. LED is on or flashing although the C Controller module has
3
started normally.
4 The RUN LED on the C Controller module remains flashing.
5 UNIT VERIFY ERR. occurred.
6 CONTROL-BUS.ERR. occurred.
No communication is available between the development
7
environment (personal computer) and C Controller module.
A file such as a program file cannot be written to the C Controller
8
module.
An error occurs during user program execution although the C
9 Controller module has started normally and the ERR. LED is not on or
flashing.
A file system error has occurred on the standard RAM, standard
10
ROM, or CompactFlash card.
11 The LEDs on an output module do not turn on.
12 An output load device of an output module does not turn on.
The C Controller module does not operate normally due to script file
13
execution.
SW3PVC-CCPU cannot be uninstalled correctly.
14
Programming)
C Controller module became faulty and it needs to be reset to the
15
factory-set conditions.
An error occurred during user program download or ld command
16
execution.
Data cannot be read from or written to the device specified with a
17
MELSEC data link function.
An error occurred during reading from or writing to the standard RAM,
18
standard ROM, CompactFlash card, or RAM disc with FTP.
19 Telnet connection cannot be made.
20 FTP connection cannot be made.
Remark
16
- 3 16.2 Troubleshooting
Problem
C Controller Module User's Manual (Utility Operation,
For C Controller setting utility, refer to the following.
C Controller Module User's Manual (Utility Operation, Programming)
Table 16.1 Troubleshooting list
Q12DCCPU-V Q06CCPU-V
Reference
Page 16-4, Section 16.2.1
Page 16-5, Section 16.2.2
Page 16-7, Section 16.2.3
Page 16-8, Section 16.2.4
Page 16-9, Section 16.2.5
Page 16-10, Section 16.2.6
Page 16-12, Section 16.2.7
Page 16-15, Section 16.2.8
Page 16-16, Section 16.2.9
Page 16-18, Section 16.2.10
Page 16-20, Section 16.2.11
Page 16-21, Section 16.2.12
Page 16-22, Section 16.2.13
Page 6-72, Section 6.10
Page 16-25, Section 16.2.14
Page 16-27, Section 16.2.15
Page 16-28, Section 16.2.16
Page 16-30, Section 16.2.17
Page 16-32, Section 16.2.18
Q06CCPU-V-B
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