Справочник Пользователя для Mitsubishi Electronics #NAME?

6

(3) Narrowing down the trouble cause

Guess the failure location to any of the following by checking (1) and (2) above.

1) Safety relay module or external device?

2) Main module, extension module or another module?

3) Programmable controller?

4) Sequence program?

6.1

Q Series Safety Relay Module

6.1.1

Error check method with LED

Table 6.1 shows description, cause investigation, and corrective action of errors 
depending on LED display on the module.

: ON,  : Flash,  : OFF, *: ON or OFF

 * 1: The status that start-up processing has been performed to the module

Normal (before start-up)

-

Normal (started up)

-

*

*

*

*

*

*

The safety power supply is not 
normally supplied.

•Check if the power supply is 

normally supplied.

•Check between the power supplies 

for short.

•In case of input N type, check 

between the dual inputs for short.

*

*

*

The module power supply is not 
normally supplied.

•Check if the power supply is 

normally supplied.

•Check between the power supplies 

for short.

*

*

Contact welding of K0 and K1 relays

•Replace the module.

K0 and K1 relays do not turn ON.

*1

*

*

Safety system 1 does not turn ON.

*1

*

*

Safety system 2 does not turn ON.

*1

Safety system 1 does not turn 

OFF.

*1

Safety system 2 does not turn 

OFF.

*1

*

*

*

*

*

*

*

•System  error  occurred.

•Check if the power supply is 

normally supplied.