Omron E5CD-800, Руководство пользователя

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E5CD-800/E5ED-800
39
Safety Precautions
Be sure to read the precautions for all E5
CD-800/E5ED-800
models in the website at: http://www.ia.omron.com/.
Warning Indications
Meaning of Product Safety Symbols
Minor injury due to electric shock may occasionally
occur.
Do not touch the terminals while power is being
supplied.
Electric shock, fire, or malfunction may occasionally
occur.
Do not allow metal objects, conductors, debris (such
as cuttings) from installation work, moisture, or other
foreign matter to enter the Digital Temperature
Controller, the Setup Tool ports, or between the pins on the
connectors on the Setup Tool cable.
Attach the cover to the front-panel Setup Tool port whenever you
are not using it to prevent foreign objects from entering the port.
Minor injury from explosion may occasionally occur.
Do not use the product where subject to flammable or
explosive gas.
Minor electric shock or fire may occasionally occur.
Do not use a Digital Temperature Controller or cable
that is damaged.
Minor electric shock, fire, or malfunction may
occasionally occur.
Never disassemble, modify, or repair the product or
touch any of the internal parts.
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.
Loose screws may occasionally result in fire.
Tighten the terminal screws to the specified torque of
0.43 to 0.58 N·m.
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 Digital 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 Digital Temperature Controller,
take appropriate safety measures, such as installing a
monitoring device on a separate line.
CAUTION - Risk of Fire and Electric Shock
a) This product is UL listed as Open Type Process
Control Equipment. It must be mounted in an
enclosure that does not allow fire to escape
externally.
b) More than one disconnect switch may be required to de-
energize the equipment before servicing.
c) Signal inputs are SELV, limited energy. *1
d) Caution: To reduce the risk of fire or electric shock, do not
interconnect the outputs of different Class 2 circuits. *2
*1. An SELV (separated extra-low voltage) system is one with a power supply
that has double or reinforced insulation between the primary and the sec-
ondary circuits and has an output voltage of 30 V r.m.s. max. and 42.4 V
peak max. or 60 VDC max.
*2. A class 2 circuit is one tested and certified by UL as having the current and
voltage of the secondary output restricted to specific levels.
CAUTION
Indicates a potentially hazardous
situation which, if not avoided, may
result in minor or moderate injury or in
property damage.
Precautions for
Safe Use
Supplementary comments on what to
do or avoid doing, to use the product
safely.
Precautions for
Correct Use
Supplementary comments on what to
do or avoid doing, to prevent failure to
operate, malfunction or undesirable
effect on product performance.
Used for general CAUTION, WARNING, or
DANGER precautions for which there is no
specified symbol. (This symbol is also used as the
alerting symbol, but shall not be used in this
meaning on the product.)
Used to warn of the risk of electric shock under
specific conditions.
Used for general prohibitions for which there is no
specific symbol.
Used to indicate prohibition when there is a risk of
minor injury from electrical shock or other source
if the product is disassembled.
Used for general mandatory action precautions
for which there is no specified symbol.
CAUTION
Safety Standard