Справочник Пользователя для Mitsubishi Electronics AJ61QBT11

 
 

 

13 - 5 

MELSEC-QnA 

13   TROUBLESHOOTING 

 

Complete

From the previous page

From the previous page

From the previous page

Is the "L RUN"

LED on? 

Is the "SD" LED

on (flashing)?

Y

N

Is the "SD" LED

on (flashing)?

Is the baud rate

setting correct?

Malfunction of the
corresponding  
module

Set the baud  
rate correctly.

Reset the power supply/ 
press the reset switch.

Is the  

communication cable

wired correctly?  

 1

Wire the communication
cable correctly.

Malfunction of the  
corresponding module
(Baud rate switch)

Is the  

station number  

switch correctly set (not

overlapping with other  

stations)?

Malfunction of the  
corresponding module 
(Station number switch)

Set the station  
number correctly.

Reset the power supply/ 
press the reset switch.

Are the  

station number  

switches set correctly (not

overlapping with other  

stations)?

Set the station  
number correctly.

Malfunction of the  
corresponding module 
(Station number switch)

Reset the power supply/ 
press the reset switch.

Y

N

Y

N

Y

N

Y

N

Y

N

Y

N

 

 

1 Check for a short, reversed connection, wire breakage, terminating resistor, FG connection, overall distance and 

station-to-station distance.