Omron NX701-17 Series Troubleshooting Manual page 243

Event code Event name
65110000 hex Process
Value Over
Range
65120000 hex Process
Value Under
Range
80220000 hex NX Message
Communica-
tions Error
90400000 hex Event Log
Cleared
 Heater Burnout Detection Units (NX-HB)
Event code Event name
00200000 hex Non-volatile
Memory Hard-
ware Error
05100000 hex A/D Converter
Error
NJ/NX-series Troubleshooting Manual (W503)
Meaning Assumed cause
The process tem- • The sensor is disconnected.
perature exceeded
• The sensor or the compensat-
the upper limit of
ing cables are not wired cor-
temperature con-
rectly.
version range.
• The sensor and the input type
setting do not agree.
• The range of the input type is
too narrow for the temperatures
that need to be measured.
• An unused channel is not dis-
abled.
The process tem- • The sensor or the compensat-
perature went ing cables are not wired cor-
below the lower rectly.
limit of temperature
• The sensor and the input type
conversion range.
setting do not agree.
• The range of the input type is
too narrow for the temperatures
that need to be measured.
An error was For the NX bus of CPU Units
detected in mes-
• The message communications
sage communica-
load is high.
tions and the
For Communications Coupler
message frame
Units
was discarded.
• The message communications
load is high.
• The communications cable is
disconnected or broken.
• Message communications were
cutoff in communications.
The event log was • The event log was cleared by
cleared. the user.
Meaning
An error occurred in • Non-volatile memory fail-
non-volatile memory.
An error occurred in • Noise
the A/D converter
• A/D converter failure
Maj
Assumed cause
Maj
ure.
3 Error Tables
Level
Reference
Prt Min Obs Info
U S W566 (W522)
U S W566 (W522)
S W566 (W522)
S W566 (W522)
Level
Reference
Prt Min Obs Info
S W566
S W566
3
3-165