7-3 Troubleshooting and Maintenance
7-3 Troubleshooting and Maintenance
When an error occurs while operating the PT, search for the symptom in the following table
and take measures according to those provided.
Errors during Data Transfer
Symptoms at
PT
Causes Measures
The CX-Designer is
not connected to
the PT.
Check the wiring conditions of the connecting cable.
(Refer to 3-3 Connecting the CX-Designer.)
Serial transfer
not possible
between CX-
Designer and
PT.
The Expansion In-
terface for serial
port B is set to the
expansion interface
(NS5 only).
Set the Expansion Interface to Disable on the Comm Tab
Page from the NS5 System Menu.
The installed PT
system is using
system program
lower than Ver. 6.2.
Install system program Ver. 6.2 or higher in the PT.
The PT has a lot
number earlier than
that indicated in 3-
3-2 Connecting via
USB.
Use a PT from the lot number (or later) indicated in 3-3-2
Connecting via USB.
The USB cable is
longer than 2 m.
To use a cable longer than 2 m, connect a USB Hub be-
tween the PT and personal computer as shown in Connec-
tion Methods under in 3-3-2 Connecting via USB.
Personal
computer can-
not detect PT
when con-
nected via
USB.
A malfunction has
occurred due to
external noise.
Configure the USB Hub and wire the USB cables taking
measures to prevent noise.
The USB cable is
longer than 2 m.
To use a cable longer than 2 m, connect a USB Hub be-
tween the PT and personal computer as shown in Connec-
tion Methods under in 3-3-2 Connecting via USB.
Timeout oc-
curs during
screen trans-
fer using USB.
A malfunction has
occurred due to
external noise.
Configure the USB Hub and wire the USB cables taking
measures to prevent noise.
Errors during PT Startup
Symptoms at
PT
Causes Measures
Power is not being
supplied to the PT.
Check the connection points and supply power to the PT
correctly. (Refer to 3-1 Installing the PT.)
The fuse is broken. The PT needs repair. Contact your nearest OMRON
representative.
Indicators do
not light.
The system
program is cor-
rupted (fatal error).
The PT may be faulty. Contact your nearest OMRON repre-
sentative.
The indicator
is lit orange
and the screen
is blank.
The system
program is
corrupted (fatal
error).
The PT may be faulty. Contact your nearest OMRON repre-
sentative.
7-6