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12. Troubleshooting
If the product gives off abnormal noise, smell, smoke or heat, turn the power off immediately.
Check the following items for troubleshooting.
Symptoms
Check items
Nothing is displayed.
Is power supply (100 to 240 V AC, 50/60 Hz) properly connected between L
and N on the terminal block of the power supply section?
Is there any short-circuit or break in the power line?
Graphs cannot be displayed. Is JavaVM (Java Virtual Machine) installed?
You need to install JavaVM in client PCs to display graphs. Visit the following
URL for installation.
http://www.java.com/
The “ERR.” LED on the
CC-Link communication
section is lighting or blinking.
Is there any error in communication with CC-Link terminal devices? Check
whether CC-Link terminal devices, CC-Link station numbers and CC-Link baud
rate are properly set and communication cables and termination resistance are
properly connected.
The “ERR.” LED on the
server section is lighting.
The battery is at the end of its life. Replace the battery.
(
See “6.2 Replacing battery”.)
Please check if the battery is properly connected.
The “STA.” LED on the
server section is blinking for
a long time.
The data in memory card is being restored during startup. The product starts up
normally after a few minutes.
“E1” is displayed on the
7-segment LED on the
server section.
Access to the internal memory has failed.
Reset the product.
“E2” is displayed on the
7-segment LED on the
server section.
Access to memory card has failed.
Reset the product.
“E3” is displayed on the
7-segment LED on the
server section.
Automatic time synchronization with the SNTP server has failed.
Check whether communication with the SNTP server is normally running or
settings in the SNTP server are correct.
“E4” is displayed on the
7-segment LED on the
server section.
File transfer to the FTP server has failed.
Check whether communication with the FTP server is normally running or
settings in the FTP server are correct.
The indication rotates on the
7-segment
LED
on
the
server section.
Is any CompactFlash card other than that supplied with the product connected?
Only the supplied CompactFlash card can be used. Connect the supplied card.
Please compare CompactFlash and
the right side of main product by the
sheet in the right.
“01” is blinking on the
7-segment LED on the
server section.
The battery backup RAM is initialized when you use the product for the first time
or when you keep the product nonenergized for more than 3 minutes with the
battery exhausted or disconnected.
If you cannot solve your problem according to the check items above, contact your supplier or us.
13. Warranty
This document and product have undergone strict quality control and inspection before delivery, but in the unlikely
event that the document or product is defective in manufacture, our company shall provide replacement. Contact the
distributor from which you purchased them. However, this warranty does not apply to the product or document that
has been damaged by acts of God or misapplication.
Our company shall not be liable for any damages arising out of your or third parties’ system troubles, legal problems,
misapplication, failures during use, or any other defects.
The product is warranted for a period of less than one (1) year from the date of your purchase or from the date of
delivery to your specified location or within eighteen (18) months from the date of shipment from our factory (from the
month and year of manufacture), whichever is less.
The warranty period shall not be renewed after repair.
Summary of Contents for MES3-255C-EN
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