Omron e5ck User Manual page 6

Be sure to observe these precautions to ensure safe use.
F Do not use the product in places where explosive or flammable gases may be present.
F Never disassemble, repair or modify the product.
F Tighten the terminal screws properly.
F Use the specified size of solderless terminals for wiring.
F Use the product within the rated supply voltage.
F Use the product within the rated load.
F The life expectancy of the output relay varies considerably according to its switching capacity and
operating conditions. Be sure to use the output relay within its rated load and electrical life expec
tomcy. If the output relay is used beyond its life expectancy, its contacts may become fused or burned.
F If you remove the controller from its case, never touch nor apply shock to the electronic parts inside.
F Do not cover the E5CK T. (Ensure sufficient space around the controller to allow heat radiation.)
F Do not use the controller in the following places:
• Places subject to icing, condensation, dust, corrosive gas (especially sulfide gas or ammonia gas).
• Places subject vibration and large shocks.
• Places subject to splashing liquid or oil atmosphere.
• Places subject to intense temperature changes.
• Places subject to heat radiation from a furnace.
F Be sure to wire properly with correct polarity of terminals.
F When wiring input or output lines to your controller, keep the following points in mind to reduce the
influence from inductive noise:
• Allow adequate space between the high voltage/current power lines and the input/output lines.
• Avoid parallel or common wiring with high voltage sources and power lines carrying large currents.
• Using separating pipes, ducts, and shielded line is also useful in protecting the controller, and its
lines from inductive noise.
F Cleaning: Do not use paint thinner or organic solvents. Use standard grade alcohol to clean the prod
uct.
F Use a voltage (100 to 240 VAC at 50 to 60 Hz). At power ON, the prescribed voltage level must be
attained within two seconds.
F Allow as much space as possible between the controller and devices that generate a powerful high
frequency (high frequency welders, high frequency sewing machines, etc.) or surge. These devices
may cause malfunctions.
F If there is a large power generating peripheral device and any of its lines near the controller, attach
a surge suppressor or noise filter to the device to stop the noise affecting the controller system. In
particular, motors, transformers, solenoids and magnetic coils have an inductance component, and
therefore can generate very strong noise.
F When mounting a noise filter on the power supply to the controller, be sure to first check the filter's
voltage and current capacity, and then mount the filter as close as possible to the controller.
NOTICE
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