A4-9
IM 34M06C11-01E
A4.4
Troubleshooting Procedure
If an error condition occurs, take note of the current situation and symptom, then
troubleshoot the problem according to the flowchart shown in Figure A4.5 considering
the relationship with the other devices and the reproducibility of the error condition.
Start
CPU
module RDY
indicator lit?
Connect personal
computer to CPU module
Replace CPU module
and restart
ERR or ALM lit?
Returned to normal?
Check equipment, signal
connections, etc., that
are external to FA-M3
Visually check that all
RDY indicators on I/O
modules are lit
CPU
module RDY lit?
End
To Start
Check power lines
Any RDY
indicators off?
I/O module with off
RDY indicator
is defective
1
1
Check input/output
configuration on
personal computer
All modules
faulty?
Faulty I/O
module present?
Faulty I/O
module is defective
Defective CPU module
Check CPU alarm
details on display
1
N
Y
N
Y
N
N
Y
Y
N
N
Y
Y
Y
N
Defective CPU module
Check all CPUs
FA040401.VSD
Sequence
CPU or BASIC
CPU?
Alarm present?
See error log
Analyze cause by
referring to error
line and code
Determine corrective
actions and check
operation from analysis
results
End
Check power lines
See error log and
check previous
analysis results
1
1
Check alarm monitor
from FA-M3
Programming Tool
WideField
Error alarm
present?
See error log
and analyze cause
1
Analyze cause by
referring to block
number, instruction
number, and
error code
Check power lines
Determine corrective
actions and check
operation from analysis
results
End
Review
sequence
program
Examine and analyze the
input/output module
causing the input/output
error
Examine and analyze
the CPU causing
the inter-CPU
communication error
Modify program by
referring to block number
and instruction number
Analyze cause by
referring to error code
N
Y
N
Y
Sequence
BASIC
BASIC STOP
Power failure
Replace module,
modify program, etc.
Self-diagnostic error
Scan timeout
Instruction processing
error
Input/output
mismatch error
FA link error
Inter-CPU
communication error
I/O failure
Momentary
power
failure
Analyze cause by
referring to block
number, instruction
number, and
error code
Figure A4.5 Troubleshooting Flowchart
Содержание FA-M3V e-RT3 Plus
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