Omron E3C-LDA Series Manual page 28

Amplifier Units
WARNING
This Amplifier Unit is not designed or rated for
ensuring safety of persons either directly or
indirectly.
Do not use it for such purposes.
Do not use the Amplifier Unit with voltage in excess
of the rated voltage.
Excess voltage may result in malfunction or fire.
Never use the Amplifier Unit with an AC power supply.
Otherwise, explosion may result.
Precautions for Safe Use
The following precautions must be observed to ensure safe operation
of the Amplifier Unit. Doing so may cause damage or fire.
1. Do not install the Amplifier Unit in the following locations.
• Locations subject to direct sunlight
• Locations subject to condensation due to high humidity
• Locations subject to corrosive gas
• Locations subject to vibration or mechanical shocks exceeding the
rated values
• Locations subject to exposure to water, oil, chemicals
• Locations subject to steam
• Locations subjected to strong magnetic field or electric field
2. Do not use the Amplifier Unit in environments subject to flammable
or explosive gases.
3. Do not use the Amplifier Unit in any atmosphere or environment
that exceeds the ratings.
4. To secure the safety of operation and maintenance, do not install
the Amplifier Unit close to high-voltage devices or power devices.
5. High-voltage lines and power lines must be wired separately from
the Amplifier Unit. Wiring them together or placing them in the
same duct may cause induction, resulting in malfunction or
damage.
6. Do not apply any load exceeding the ratings. Otherwise, damage
or fire may result.
7. Do not short the load. Otherwise, damage or fire may result.
8. Connect the load correctly.
9. Do not miswire such as the polarity of the power supply.
10.To use this device as connecting with each other, be sure to
connect with the same power supply and turn ON the power
simultaneously. Using a separate power supply will influence the
functions when connecting the devices to use them.
11.Do not use the Amplifier Unit if the case is damaged.
12.Burn injury may occur. The Amplifier Unit surface temperature
rises depending on application conditions, such as the ambient
temperature and the power supply voltage. Attention must be paid
during operation or cleaning.
13.When setting the sensor, be sure to check safety such as by
stopping the equipment.
14.Be sure to turn off the power supply before connecting or
disconnecting wires.
15.Do not attempt to disassemble, repair, or modify the Amplifier Unit
in any way.
16.When disposing of the Amplifier Unit, treat it as industrial waste.
17.Do not use the Sensor in water, rainfall, or outdoors.
18.UL Standard Certification (Applicable Models: E3NC-LA21/LA51/
SA21/SA51 Only)
Only the sensors with Enhanced UL Certification Mark are certified
by UL. They are intended to be supplied by a "Class 2 circuit".
When used in United States and Canada, Please use the same
Class 2 source for input and output.The overcurrent protection
current rating is 2A max. They were evaluated as Open type and
shall be installed within a enclosure.
Precautions for Correct Use
1. Be sure to mount the unit to the DIN track until it clicks.
2. When using the Amplifier Units with Wire-saving Connectors,
attach the protective stickers (provided with E3X-CN-series
Connectors) on the unused power pins to prevent electrical shock
and short circuiting.
When using the Amplifier Units with Connectors for
Communications Units, attach the protective caps (provided with
E3NW-series Sensor Communications Unit).
Amplifier Unit with Wire-
saving Connector
Protective sticker
Power supply
connecting terminals
3. Use an extension cable with a minimum thickness of 0.3 mm
less than 10 m long.
4. Do not apply the forces on the cord exceeding the following limits:
Pull: 40 N; torque: 0.1 N·m; pressure: 20 N; bending: 29.4 N
5. Do not apply excessive force (9.8 N max.) such as tension,
compression or torsion to the connector of the Sensor Head that
is fixed to the Amplifier Unit.
6. Always keep the protective cover in place when using the Amplifier
Unit. Not doing so may cause malfunction.
7. It may take time until the received light intensity and measured
value become stable immediately after the power is turned on
depending on use environment.
8. The product is ready to operate 200 ms after the power supply is
turned ON.
9. The Mobile Console E3X-MC11, E3X-MC11-SV2 and E3X-MC11-
S cannot be connected.
10.The mutual interference prevention function does not work when
in combination with E3C/E2C/E3X.
11.If the unit receives excessive sensor light, the mutual interference
prevention function may not work properly, resulting in malfunction
of the unit. In such case, increase the threshold.
12.Standard models (E3NC-@A21/51/7/9)
The Sensor Communications Unit E3X-DRT21-S, E3X-CRT, E3X-
ECT and E3NW cannot be connected.
Model for Sensor Communications Unit (E3NC-@A0)
The Sensor Communications Unit E3NW can be connected.
E3X-DRT21-S, E3X-CRT, E3X-ECT cannot be connected.
13.If you notice an abnormal condition such as a strange odor,
extreme heating of the unit, or smoke immediately stop using the
product, turn off the power, and consult your dealer.
14.Do not use thinner, benzene, acetone, and lamp oil for cleaning.
E3NC
Amplifier Unit with Connector for
Sensor Communications Unit
Protective cap
2
and
16