11 TROUBLESHOOTING

MELSEC-Q

Error Code List (Continued)

Error Code

Error Messages

Common

Individual

LED Status

Operating

Diagnostic Timing

Information

Information

Statuses of

(SD0)

1

 

 

 

(SD5 to 15) 1

(SD16 to 26) 1

RUN

ERROR

CPU

 

 

 

 

 

2100

SP. UNIT LAY ERR.

Unit/module No.

———

Off

Flicker

Stop

At power ON/At reset

2101

2102

2103

SP. UNIT LAY ERR.

Unit/module No.

———

Off

Flicker

Stop

At power ON/At reset

2104

2105

2106

SP. UNIT LAY ERR.

Unit/module No.

———

Off

Flicker

Stop

At power ON/At reset

2107

2108

SP. UNIT LAY ERR.

Unit/module No.

———

Off

Flicker

Stop

At power ON/At reset

2109 6

1 Characters in parentheses ( ) indicate the special register numbers where individual information is being stored. 6 This can only be detected in the redundant system standby system.

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