Chapter 10 Troubleshooting; Troubleshooting Flow - Mitsubishi Electric MELSEC Q Series Reference Manual

CHAPTER 10
This chapter describes the detection of errors and the error description and corrective action toward error codes.
10.1

Troubleshooting Flow

Error description is explained according to types of errors.
Error occurrence
Stop error has occurred in CPU module.
RUN LED is OFF.
EXT.PW LED is OFF.
ERR. LED is ON.
MODE LED is OFF or flashing.
D LINK LED is OFF.
D LINK LED is flashing.
Cyclic transmission is disabled.
Transient transmission is disabled.
IP communications are disabled (when
the IP packet transfer function is used).
Data link is disabled in redundant system.
Data link is disabled on station of Basic
model QCPU or safety CPU.
To take corrective action toward errors immediately at the system operation, perform the following tests before system
operation and check that the system operates normally.
• Testing the CC-Link IE Controller Network Module:
• Tests for CC-Link IE Controller Network Startup:
• Test Before CC-Link IE Controller Network Operation:
TROUBLESHOOTING
Check the error details and take corrective actions.
QCPU User's Manual
(Hardware Design, Maintenance and Inspection)
Page 498, Section 10.1.1
Page 498, Section 10.1.2
Check error factors with the CC IE Control diagnostics and
take corrective actions according to the troubleshooting section.
Page 541, Section 10.4
When an error code is identified, check the error details and
take corrective actions.
Page 511, Section 10.2
Page 499, Section 10.1.3
Page 500, Section 10.1.4
Page 501, Section 10.1.5
Page 502, Section 10.1.6
Page 504, Section 10.1.7
Page 505, Section 10.1.8
Page 507, Section 10.1.9
Page 510, Section 10.1.10

CHAPTER 10 TROUBLESHOOTING

Page 150, Section 5.4
Page 164, Section 5.6
Page 174, Section 5.7
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