Omron NS7 Series Setup Manual page 192

7-3 Troubleshooting and Maintenance
Errors during PT Operation
Symptoms at
PT
RUN indicator
does not light.
The screen is
blank.
The display
update is slow.
The touch
panel does not
respond.
The display is
dark.
Cannot enter
the device
monitor func-
tion.
7-10
Causes
Power is not being Check the connection points and supply power to the PT
supplied to the PT. correctly. (Refer to 3-1 Installing the PT.)
The fuse is broken. Contact your nearest OMRON representative.
The PT is in system This is not an error. Information will be displayed when the
startup waiting waiting time has lapsed.
status.
The screen saver This is not an error. Touch the screen, or operate the sys-
function is operat- tem memory for switching the screen from the host to
ing. switch the screen as follows:
• Set the screen number in $SW0.
• Set the pop-up screen number in $SW1, 4 and 7.
(Refer to 2-4 System Memory in the PT Programming
Manual for details on the system memory.)
The backlight is Turn ON the backlight by setting system memory bits $SB6
OFF. to 8 for adjusting backlight brightness to ON. (Refer to 2-4
System Memory in the PT Programming Manual for details
on the system memory.)
The backlight has The backlight must be replaced, so contact your nearest
malfunctioned. OMRON representative.
Screen switching, If screens are opened and closed frequently, the display
opening and closing update may take some time and communications may be
pop-up screens, delayed.
and switching Adjust the interval between screen switches so that the
frames are being system is not overloaded.
performed fre-
quently.
The message On the NS-Designer, select Settings - System Setting,
communications click the Comm-All Tab, press the Comm. Details Button,
interval is too long. and set a shorted communications interval. (Refer to Sec-
tion 7 System Settings of the NS-Designer Operation Man-
ual.)
PT has malfunc- Reset the PT, and wire it according to noise prevention
tioned due to exter-
measures.
nal noise.
The touch panel is Test the touch panel using the hardware check in the Sys-
damaged. tem Menu. If an error has occurred, contact your nearest
OMRON representative.
The brightness set- Increase the backlight brightness in the PT Tab Page of the
ting is too low. System Menu.
The backlight is The backlight must be replaced. Contact your nearest OM-
faulty or its service RON representative.
life has expired.
The communica- When using the device monitor, set the communications
tions settings are mode as follows:
• C-series PLCs:
incorrect.
1:1 NT Link or 1:N NT Links
• CS1-series PLCs:
1:N NT Links (normal, high speed)
The device monitor function is not supported for Ethernet
or Controller Link.
The PLC does not The PLCs that support the device monitor function are re-
support the device stricted. Check the PLC model being used.
monitor function. (Refer to 6-8-4 Device Monitor.)
Measures