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7-3 Troubleshooting and Maintenance
7-7
Symptoms at
PT
Cause Possible
countermeasure
Indicators do
not light.
The system
program is cor-
rupted (fatal error).
The PT may be faulty. Contact your nearest OMRON repre-
sentative.
The system
program is
corrupted (fatal
error).
The PT may be faulty. Contact your nearest OMRON repre-
sentative.
The indicator
is lit orange
and the screen
is blank.
The Memory Card
cannot be recog-
nized.
Use a Memory Card specified by OMRON. (Refer to
3-6
Using Memory Cards
.)
The system pro-
gram is corrupted
(non-fatal error).
The combination of
NS-series PT
hardware and sys-
tem program ver-
sion is incorrect.
Recovery/update the system program. (Refer to
3-6 Using
Memory Cards
.)
Contact your nearest OMRON representative if the same
problem occurs after recovering/updating the system pro-
gram.
The indicator
is lit green and
the screen is
blank.
In the following
cases, project data
was downloaded
without clearing the
log data saved in
the NS.
• A project was
downloaded to
the NS-series PT
in which settings
related to history,
such as alarm/
event or data log
settings, have
been changed.
• An attempt was
made to
download a pro-
ject that was dif-
ferent from the
project saved in
the NS.
Download the project data again. When downloading the
project data again, be sure to clear the log data saved in
the NS.
The indicator
is flashing
green and the
buzzer re-
peatedly turns
ON and OFF.
The backlight has
malfunctioned.
The backlight must be replaced. Contact your nearest
OMRON representative.
The screen is
blank and the
indicator is
flashing green.
Automatic upload/
download has
ended normally.
This is not an error. Turn OFF all the DIP switch pins and
turn ON the power to the PT again.
Summary of Contents for NS - REV 12
Page 2: ......
Page 22: ...20 ...
Page 34: ...1 4 Procedure for Running NS series PTs 1 12 ...
Page 54: ...2 2 Part Names and Functions 2 20 ...
Page 116: ...3 11 RS 232C RS 422A Selector DIP Switch 3 62 ...
Page 144: ...4 4 Recommended Connector Cables 4 28 ...
Page 174: ...5 3 Connecting to Host via EtherNet IP 5 30 ...
Page 246: ...6 11 Verifying Tags 6 72 ...
Page 279: ...Appendix 2 Dimensions A 19 NS5 V1 V2 Cable Connection Dimensions ...
Page 332: ......
Page 333: ......