12 - 16 12 - 16
12 TROUBLESHOOTING
MELSEC-ST
(2) Error code lists
(a) I/O module error codes
Error code
(Hexadecimal)
Error level
Description
Corrective action
Target module
0001
H
System error
Hardware fault
Please contact your local Mitsubishi service
center or representative, explaining a detailed
description of the problem.
All modules
0002
H
Warning
Fuse
blown
After checking the module, whose ERR. LED is
on, for the following conditions, please contact
your local Mitsubishi service center or
representative, explaining a detailed description
of the problem.
• Load higher than the rated current
• External wiring problem
ST1Y -TE2
0100H Warning
Protective function
activated
Check the module, whose ERR. LED is
flickering, for the following conditions.
• Load higher than the rated current
• External wiring problem
ST1Y -TPE3
(b) Power distribution module error codes
Error code
(Hexadecimal)
Error level
Description
Corrective action
Target module
0001
H
System error
Hardware fault
Please contact your local Mitsubishi service
center or representative, explaining a detailed
description of the problem.
All modules
0100
H
Warning
SYS. input 24VDC
voltage low
ST1PSD
0200H Warning
AUX. input 24VDC
voltage low
Check the module, whose ERR. LED is
flickering, for the following conditions.
• Load higher than the rated current
• External wiring problem
All modules
0300H Warning
24VDC input
voltage low
The SYS. input 24VDC voltage is low and the
AUX. input 24VDC voltage is low.
Check the module, whose ERR. LED is
flickering, for the following conditions.
• Load higher than the rated current
• External wiring problem
ST1PSD
Summary of Contents for MELESEC-ST
Page 1: ......
Page 2: ......
Page 23: ...A 21 A 21 MEMO...
Page 114: ...10 22 10 22 10 MOUNTING AND INSTALLATION MELSEC ST MEMO...
Page 125: ...11 11 11 11 11 EMC AND LOW VOLTAGE DIRECTIVE MELSEC ST MEMO...
Page 163: ...Index 2 Index 2 MEMO Ind...
Page 165: ......
Page 166: ......