Omron FQM1-MMA21 User Manual

Use the following flowchart as a guide for error processing with the CX-Pro-
grammer.

Yes

Lit

Is RUN

indicator lit?

Not lit

Is ERR

indicator flashing?

Flashing

Fatal error

Not lit

Is POWER 

indicator lit?

Lit

Error occurred 
during operation

Proceed to 

9-2-6 

Power Supply Check.

Not lit

Is RDY

indicator lit?

Lit

ERR indicator lit.

Non-fatal error

System FAL error

Motion Control 
Module Monitor 
error

Coordinator Module 
Fatal error

Coordinator Module 
(CM) WDT error

 System Setup 
error

Memory error

I/O Bus error

I/O Table Setting 
error

Program error

Cycle Time 
Overrun error

System FALS 
error

CPU Error
CPU Reset
CPU standby

Proceed to 

9-2-12  I/O 

Check and 9-2-13 
Environmental 
Conditions Check.

Can

CX-Programmer 

connect online?