Troubleshooting Flowcharts; Troubleshooting Using Leds - Mitsubishi Electric MELSEC-Q Series User Manual

11.1

Troubleshooting Flowcharts

11.1.1

Troubleshooting using LEDs

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 a
programming tool.
Page 271, Section 11.1.2
*1 To check error details, a programming tool is required.
268
Troubleshoot the problem with reference
to "Troubleshooting when the RUN LED
No
on the master station is off".
Page 269, Section 11.1.1 (1)
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
When a CC-Link system is
newly configured or the existing
CC-Link system is changed
Yes
A1-1, A1-3
*1
A1-7
Yes
A1-1, A1-5, A1-8,
A3-1, A3-4
A1-1, A1-2, A1-3, A1-4
*1
A1-7 , A1-9, 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
Yes
*1
A2-3, A2-4 , A2-9,
A2-10, A4-4, A4-5
A2-1, A2-2, A2-4
The numbers above correspond to those listed in the
"Check item" column in Section 11.2.1 "Problems due to
disconnection of a slave station".
Take corrective action with reference to the corresponding item.
When the CC-Link system
has operated
B1-3, B1-4
*1
,
*1
,
B1-1 *1 , B1-2, B1-5
B2-1, B2-2, B2-4
B2-2, B2-3
B2-4
*1