Omron NX701-17 Series Troubleshooting Manual page 259

Event code Event name
65230000 hex Discrepancy
Error at
Safety Input
65240000 hex Overload
Detected at
Test Output
65250000 hex Stuck-at-high
Detected at
Test Output
65270000 hex Short Circuit
Detected at
Safety Out-
put
65280000 hex Stuck-at-high
Detected at
Safety Out-
put
80200000 hex NX Unit I/O
Communica-
tions Error
NJ/NX-series Troubleshooting Manual (W503)
Meaning Assumed cause
An error was • There is a ground fault or dis-
detected in discrep- connection in the input signal
ancy evaluation of line.
safety input termi-
• The connected device is faulty.
nals.
• The setting of the discrepancy
time is not correct.
• Chattering occurred in the input
signal from the external input
device, such as a safety door.
An overcurrent was • There is a ground fault on the
detected at the test output signal line.
output terminal.
• The external device is faulty.
It was detected that • The positive power supply line
the test output ter- is in contact with the output sig-
minal is stuck ON. nal line.
• 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.
A ground fault was • There is a ground fault on the
detected on the output signal line.
safety output termi-
nal.
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-
• The power cable for the Unit
munications Cou-
power supply is disconnected.
pler Unit and the
Or, the wiring from the Unit
NX Unit.
power supply to the NX Units is
incorrect.
• The power cable for the Unit
power supply is broken.
• The voltage of the Unit power
supply is outside the specified
range. Or, the capacity of the
Unit power supply is insuffi-
cient.
• There is a hardware error in the
NX Unit.
3 Error Tables
Level
Maj Prt Min Obs Info
S Z930
S Z930
S Z930
S Z930
S Z930
S Z930
Reference
3
3-181