Omron NX-SL3300 User Manual page 440

12 Troubleshooting
Event code Event name
80200000 hex NX Unit I/O
Communica-
tions Error
80300000 hex Safety Proc-
ess Data
Communica-
tions Time-
out
84F10000 hex NX Bus I/O
Communica-
tions Stop-
ped
l Safety I/O Errors
Event code Event name
05210000 hex Internal Cir-
cuit Error at
Safety Input
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Meaning
•
An I/O communica-
The NX Unit is not mounted
tions error occurred properly.
•
between the NX bus
The power cable for the Unit
master and the NX
power supply is disconnected.
Unit.
Or, the wiring from the Unit
power supply to the NX Units
is incorrect.
•
The power cable for the Unit
power supply is broken.
•
The unit power voltage is out
of the supported range, or the
unit power capacity is not suffi-
cient.
•
There is a hardware error in
the NX Unit.
•
A communications
A setting is not correct. The
timeout occurred in
setting of the safety task peri-
safety process data od is too short.
•
communications with
There is excessive noise.
the Safety Control •
The Safety CPU Unit or safety
Unit.
slave entered a status where it
could not continue safety proc-
ess data communications.
•
The process data communica-
tions were not performed cor-
rectly because an error or sta-
tus change occurred in the NX
bus master to which the Unit is
connected.
An error occurred in There is a hardware error in the
I/O communications NX bus master or an NX Unit.
between the NX bus
master and an NX
Unit.
Meaning
•
A fault was detected
The internal circuit for the safe-
in the internal circuit ty input terminal is faulty.
•
for the safety input
A memory error or signal error
terminal.
occurred due to a transient
cause, such as an excessive
noise.
M
Assumed cause
a
j
M
Assumed cause
a
j
NX-series Safety Control Unit User's Manual (Z930)
Level
I
M O
Reference
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¡ page
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Level
I
M O
Reference
P n
i b
rt f
n s
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¡ page
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