Omron E5EK DEVICENET User Manual page 6

Be sure to observe these precautions to ensure safe use.
(1) Do not wire the terminals which are not used.
(2) Be sure to wire properly with correct polarity of terminals.
(3) To reduce induction noise, separate the high-voltage or large-current power lines from other
lines, and avoid parallel or common wiring with the power lines when you are wiring to the
terminals. We recommend to use separating pipes, ducts, or shielded lines.
(4) Do not use this product in the following places:
• Places subject to dust or corrosive gases (in particular, sulfide gas and ammonia gas)
• Places subject to high humidity, condensation or freezing.
• Places subject to direct sunlight.
• Places subject vibration and large shocks.
• Places subject to splashing liquid or oil atmosphere.
• Places directly subject to heat radiated from heating equipment.
• Places subject to intense temperature changes.
• Places subject to flammable or explosive gas.
(5) To allow heat to escape, do not block the area around the product. (Ensure enough space for
heat to escape.)
(6) If you remove the controller from its case, never touch nor apply shock to the electronic parts
inside.
(7) Cleaning: Do not use paint thinner or the equivalent. Use standard grade alcohol to clean the prod-
uct.
(8) Use specified size (M3.5, width 7.2mm or less) crimped terminals for wiring.
(9) Allow as much space as possible between the controller and devices that generate a powerful
high-frequency (e.g. high-frequency welders, high-frequency sewing machines) or surge.
PRECAUTIONS FOR ENSURING CORRECT USE
F Use a 100 to 240 V AC (50/60 Hz), 24 VAC (50/60 Hz) or 24 VDC power supply matched to the
power specifications of the E5EK-DRT. Also, make sure that rated voltage is attained within two
seconds of turning the power ON.
F Attach a surge suppressor or noise filter to peripheral devices that generate noise (in particular,
motors, transformers, solenoids, magnetic coils or other equipment that have an inductance compo-
nent).
F When mounting a noise filter on the power supply, be sure to first check the filter's voltage and
current capacity, and then mount the filter as close as possible to the controller.
F Insert a noise filter (TDK ZCB2206-11 or equivalent) on the AC power line to satisfy conducted
emission rating (FCC Regulation Class A EN50081-2-compliant).
F Use within the following temperature and humidity ranges:
• Temperature: -10 to 55°C, Humidity: 35 to 85% (with no icing or condensation)
If the E5EK-DRT is installed inside a control board, the ambient temperature must be kept to
under 55°C, including the temperature around the controller.
If the controller is subjected to heat radiation, use a fan to cool the surface of the controller to under
55°C.
F Store within the following temperature and humidity ranges:
• Temperature: -25 to 65°C, Humidity: 35 to 85% (with no icing or condensation)
F Never place heavy objects on, or apply pressure to the controller that may cause it to deform and
deteriorate during use or storage.
F Avoid using the controller in places near a radio, television set, or wireless installation. These
devices can cause radio disturbances which adversely affect the performance of the controller.
NOTICE
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