Omron NJ Series Troubleshooting Manual page 169

Event code Event name
65280000 hex Stuck-at-high
Detected at
Safety Output
80200000 hex NX Unit I/O
Communica-
tions Error
80300000 hex Safety Pro-
cess Data
Communica-
tions Timeout
84F1 0000 hex NX Bus I/O
Communica-
tions
Stopped
80220000 hex NX Message
Communica-
tions Error
90400000 hex Event Log
Cleared
90430000 hex Memory All
Cleared
NJ-series Troubleshooting Manual (W503)
Meaning Assumed cause
It was detected that • The positive power supply line
the safety output is in contact with the output sig-
terminal is stuck nal line.
ON.
• The output power supply is out-
side the specifications.
• The internal circuit is faulty.
• A memory error or signal error
occurred due to a transient
cause, such as a software error
or excessive noise.
An I/O communica- • The NX Unit is not mounted
tions error occurred properly.
between the Com-
• There is a hardware error in the
munications Cou-
NX Unit.
pler Unit and the
NX Unit.
A communications • A setting is not correct. The set-
timeout occurred in ting of the safety task period of
safety process data the Safety CPU Unit is too
communications short. Or, the setting of the
with a safety slave. PDO communications safety
task period of the EtherCAT
master is too short.
• There is excessive noise.
• The safety slave entered a sta-
tus where it could not continue
safety process data communi-
cations.
• An error or status change
occurred in the EtherCAT Cou-
pler Unit to which the Unit is
connected, preventing correct
process data communications.
An error occurred in There is a hardware error in the
I/O communications Communications Coupler Unit or
between the Com- an NX Unit.
munications Cou-
pler Unit and an NX
Unit.
An error was • The message communications
detected in mes- load is high.
sage communica-
• The communications cable is
tions for an NX Unit
disconnected or broken.
and the message
frame was dis-
carded.
The event log was The event log was cleared by the
cleared. user.
The Unit settings The Clear All Memory operation
were cleared. was performed.
3 Error Tables
Level
Maj Prt Min Obs Info
S NX-series
Safety Control
Unit User's
Manual (Z930)
S Same as
above.
S Same as
above.
S Same as
above.
S Same as
above.
S Same as
above.
S Same as
above.
Reference
3
3-107