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Application Precautions
5
• Use crimp terminals for wiring. Do not connect bare stranded wires
directly to terminals. Connection of bare stranded wires may result in
burning.
• Do not pull on cables and cords and do not bend them past their natural
bending radius.
• Do not place any heavy objects on cables or cords.
• Mount the Unit only after checking the terminal block completely.
• Be sure that the terminal blocks, Memory Units, expansion cables, and
other items with locking devices are properly locked into place. Improper
locking may result in malfunction.
• Check the user program for proper execution before actually running it on
the Unit. Not checking the program may result in an unexpected opera-
tion.
• Double-check all the wiring before turning on the power supply. Incorrect
wiring may result in burning.
• Confirm that no adverse effect will occur in the system before attempting
any of the following. Not doing so may result in an unexpected operation.
• Changing the operating mode of the PLC (including the setting of the
startup operating mode).
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Touch a grounded metal object to discharge static electricity from your
body before touching any Unit.
• 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.
• Always use the standard installation method. A nonstandard installa-
tion will decrease heat dissipation, delay the replacement notification
signal, and may degrade or damage the internal elements.
• This product is EMC compliant when assembled in a complete PLC sys-
tem of the specified PLC Series. Refer to the applicable manual for
grounding, cable selection, and any other conditions for EMC compliance.
• This is a class A product. In residential areas it may cause radio interfer-
ence, in which case the user may be required to take adequate measures
to reduce interference.
Summary of Contents for SYSMAC CJ1W-AD04U
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