Omron NSJ CONTROLLERS - 03-2008 Operation Manual page 27

Application Precautions
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• A DeviceNet multidrop connector cannot be connected to serial port B on
the NSJ5-@@@@-@@@. Do not use it. DeviceNet multidrop connectors
cannot be used with the NSJ8/10/12-@@@@-@@@.
• Use only an insulated power source for DeviceNet communications.
• Always tighten the connector screws when connecting communications
connectors.
• Observe the following precautions when using the built-in DeviceNet Sec-
tion.
• Enable the scan list to before operating the system.
• When adding a new node to the network, make sure that the baud rate
is the same as other nodes.
• Use specified communications cables.
• Do not extend connection distances beyond the ranges given in the spec-
ifications.
• Do not short the battery terminals or charge, disassemble, heat, or incin-
erate the battery. Do not subject the battery to strong shocks. Doing any
of these may result in leakage, rupture, heat generation, or ignition of the
battery. Dispose of any battery that has been dropped on the floor or oth-
erwise subjected to excessive shock. Batteries that have been subjected
to shock may leak if they are used.
• UL standards required that batteries be replaced only by experienced
technicians. Do not allow unqualified persons to replace batteries.
• The backlight used in the NSJ Controller contain mercury. Dispose of the
NSJ Controller and any Batteries that are no longer required according to
all local laws and ordinances.
• When mounting a Battery, be sure that the correct model is being used.
• The life of the Battery will be shortened if the NSJ Controller is left for a
period of time without power supplied and then a Battery is mounted with-
out supplying power.
• To ensure that memory is not corrupted, always turn ON the power supply
to the NSJ Controller for at least 5 minutes before replacing the Battery
and then complete replacing the Battery within 5 minutes after turning
OFF the power supply.
• The following precautions apply to Power Supply Units with Replacement
Notification.
• When the LED display on the front of the Power Supply Unit starts to
alternately display "0.0" and "A02" or the alarm output automatically
turns OFF, replace the Power Supply Unit within 6 months.
• Separate the alarm output cables from power lines and high-voltage
lines.
• Do not apply a voltage or connect a load to the alarm output that ex-
ceeds the rated voltage or load.
• Maintain an ambient storage temperature of − 20 to 30 ° C and humidity
of 25% to 70% when storing the product for longer than 3 months to
keep the replacement notification function in optimum working condi-
tion.
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