Chapter 4 Troubleshooting; Checking With Led - Mitsubishi Electric MELSEC iQ-R Series User Manual

4
TROUBLESHOOTING
This chapter describes how to identify and remove the cause of an error in the master/local module.
4.1

Checking with LED

Start
Master station
RUN on
YES
Master station
L RUN on
YES
Master station
ERR. on
NO
Master station
ERR. flashing
NO
All slave stations
L RUN on
YES
Troubleshoot using an engineering
*2
tool
*1 Page 97 When the RUN LED of the master station turns off
*2 Page 98 Checking the Module Status
*3 An engineering tool is required to check the error details.
*4 The item corresponds to the number of the check item for when a slave station is disconnected. Refer to the corresponding check item
and take the action. ( Page 117 When a slave station is disconnected)
4 TROUBLESHOOTING
96
4.1 Checking with LED
Troubleshoot the problem with reference
NO
to "Troubleshooting when the RUN LED
on the master station is off".
NO
Master station
SD on, RD on
NO
YES
Master station
L ERR. flashing
NO
YES
Slave station
RD flashing
YES
Slave station
L ERR. on
NO
Slave station
L ERR. flashing
NO
Slave station
SD flashing
NO
NO
*1
When a CC-Link system is
newly configured or the existing
CC-Link system is changed
YES
A1-1, A1-3
*3
A1-6
YES
A1-1, A1-5, A1-7, A3-1,
A3-4
A1-1, A1-2, A1-3, A1-4
*3
A1-6 , A1-8, A3-2
A3-3, A3-5, A3-6
NO
A2-5, A2-6, A2-10,
A4-1, A4-2
YES
A2-1, A2-2
YES
A2-5, A2-7, A4-3
*3
YES
A2-3, A2-4 , A2-9,
A2-10, A4-4, A4-5
A2-1, A2-2, A2-4
When the CC-Link system
has operated
B1-3, B1-4
*3
,
*3
,
*3
B1-1 , B1-2, B1-5
B2-1, B2-2, B2-4
B2-2, B2-3
B2-4
*3
*4