Safety Precautions; Precautions For Safe Use - Omron E5CWL Connections

Safety Precautions

Do not touch the terminals while power is being
supplied.
Doing so may occasionally result in minor injury due to
electric shock.
Do not allow pieces of metal, wire clippings, or fine
metallic shavings or filings from installation to enter the
product. Doing so may occasionally result in electric
shock, fire, or malfunction.
Do not use the product where subject to flammable or
explosive gas. Otherwise, minor injury from explosion
may occasionally occur.
Never disassemble, modify, or repair the product or
touch any of the internal parts. Minor electric shock, fire,
or malfunction may occasionally occur.
If the output relays are used past their life expectancy,
contact fusing or burning may occasionally occur.
Always consider the application conditions and use the
output relays within their rated load and electrical life
expectancy.
The life expectancy of output relays varies considerably
with the output load and switching conditions.
Tighten the terminal screws to between 0.74 and 0.90
N·m. Loose screws may occasionally result in fire.
Set the parameters of the product so that they are
suitable for the system being controlled. If they are not
suitable, unexpected operation may occasionally result
in property damage or accidents.
A malfunction in the Temperature Controller may
occasionally make control operations impossible or
prevent alarm outputs, resulting in property damage. To
maintain safety in the event of malfunction of the
Temperature Controller, take appropriate safety
measures, such as installing a monitoring device on a
separate line.

Precautions for Safe Use

Be sure to observe the following precautions to prevent operation
failure, malfunction, or adverse affects on the performance and
functions of the product. Not doing so may occasionally result in
unexpected events.
1. The product is designed for indoor use only. Do not use the
product outdoors or in any of the following locations.
 Places directly subject to heat radiated from heating equipment.
 Places subject to splashing liquid or oil atmosphere.
 Places subject to direct sunlight.
 Places subject to dust or corrosive gas (in particular, sulfide gas
and ammonia gas).
 Places subject to intense temperature change.
 Places subject to icing and condensation.
 Places subject to vibration and large shocks.
2. Use/store within the rated temperature and humidity ranges.
Provide forced-cooling if required.
3. To allow heat to escape, do not block the area around the product.
Do not block the ventilation holes on the product.
4. Be sure to wire properly with correct polarity of terminals.
5. Use specified size (M3.5, width 7.2 mm or less) crimped terminals
for wiring. To connect bare wires to the terminal block, use copper
braided or solid wires with a rated temperature of over 70C and a
gauge of AWG24 to AWG14 (equal to a cross-sectional area of
0.205 to 2.081 mm
wires of same size and type, or two crimped terminals can be
inserted into a single terminal.
6. Do not wire the terminals which are not used.
7. Allow as much space as possible between the controller and
devices that generate a powerful high-frequency or surge.
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.
8. Use this product within the rated load and power supply.
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!CAUTION
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). (The stripping length is 5 to 6 mm.) Up to two
E5CSL/E5CWL/E5EWL
9. Make sure that the rated voltage is attained within two seconds of
turning ON the power using a switch or relay contact. If the voltage
is applied gradually, the power may not be reset or output
malfunctions may occur.
10.Make sure that the Controller has 30 minutes or more to warm up
after turning ON the power before starting actual control
operations to ensure the correct temperature display.
11.A switch or circuit breaker should be provided close to this unit.
The switch or circuit breaker should be within easy reach of the
operator, and must be marked as a disconnecting means for this
unit.
12.Do not use paint thinner or similar chemical to clean with. Use
standard grade alcohol.
13.Design system (control panel, etc) considering the 2 seconds of
delay that the controller's output to be set after power ON.
14.The output may turn OFF when shifting to certain levels. Take this
into consideration when performing control.
15.The number of non-volatile memory write operations is limited.
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