User Manual N11
Troubleshooting
Industrial PC
www.noax.com
Page 88 of 120
3085-US-2.4
14.3
Error codes – LED displays for errors
When an error occurs, the integrated MCU displays an error code via the control panel
LEDs which provides more information about the error type.
When the
!
(Error) LED starts to light up continuously, the
OK
(OK),
(Input), and
(Power) LEDs will no longer have their normal function and will instead display an
error code.
Possible LED states are “off”, “slow flashing” (1.5x/s), “fast flashing” (10x/s), and “on”.
Description
Error LED
(red)
OK LED
(green)
Input LED
(yellow)
Power LED
(blue)
CMOS battery voltage low
On
Off
Off
On
Input voltage for IPC too low (1)
On
Off
Slow
flashing
Off
Internal system temperature too low
On
On
Off
Off
Internal system temperature too high
On
Off
Slow
flashing
Slow
flashing
Fan does not operate
On
On
Off
Slow
flashing
Overheating protection,
display brightness dimmed
Slow
flashing
Irrelevant
Irrelevant
Irrelevant
Overheating protection,
display switched off
Fast
flashing
Irrelevant
Irrelevant
Irrelevant
(1)
Input voltage too low:
As soon as the device is supplied with power, the input voltage is monitored. If the voltage already
exeeds the limits at this point, it will not be possible to switch on the device. In this case, check the
external power supply or the electrical circuit providing the power supply. The device will also
switch off if the input voltage is no longer within the limits during operation.
Make a note of each LED’s state (= error code) as well as the type and serial number
of the device, and contact the noax hotline. You will then be provided with further
information and suggestions of what to do next.
(
Please find contact information on the back cover of this user manual.
