E3GL31 Datasheet, PDF (16/17 Pages) Omron Electronics LLC – Pin-point Beam, Adjustable Focus Point and Teach Mode for Reliable Detection

E3G-L1/L3
Precautions
J DESIGNING
High-voltage Lines
Do not place sensor power supply or signal lines within the same
conduit as high-voltage power lines.
Voltage Ratings
Do not exceed rated supply voltage, ripple percent (for DC
models), or load current limits.
Ambient Lighting
Do not install the sensor in direct sunlight or other sources of
strong ambient light.
Environmental Conditions
Do not install the sensor in areas
$ With high humidity, or where condensation would result
$ With corrosive gas.
$ With high vibration or shock.
Power Supply
If a switching power supply is used, or when using an inverter or
servomotor, you must ground the FG (frame ground) and G
(ground) terminals on the power supply for proper operation and
to avoid damaging the sensor.
Water Exposure
Although conforming to IP67, do not use the sensor where it may
be immsersed, is outdoors, or is exposed to rain.
To ensure the water resistance of the sensor, tighten the screws
of the operation panel cover to a torque of 0.2 to 0.3 N S m.
Cable
$ The bending radius of the cable should be at least 25 mm.
$ When using extended power and signal cable, total length
must not exceed 100 m, with a minimum wire size of
0.3 mm² (22 AWG).
$ Do not apply tensile force exceeding 50 N to cable (pre-
leaded and connector models).
Avoiding Malfunctions
If using the photoelectric sensor with an inverter or servomotor,
be sure to ground the FG (frame ground) and G (ground)
terminals, otherwise the sensor may malfunction.
Proper Mounting Screws
Use M3 screws and washers to mount the sensor and bracket.
Mechanical Shock
Avoid mechanical shock during installation which may amage the
housing (see Shock specifications)
E3G-L1/L3
Short--circuit Protection
If the load short--circuits, the output will be turned off. Disconnect
power and check the wiring. After correcting the shorted
condition, turn power back on. The sensor will reset the
short-circuit protection function. The short-circuit protection is
activated when the current flow is at least 2.4 times the rated
load current. When using an inductive load, the inrush current
must not exceed this factor.
Connector
$ When connecting or disconnecting the connector, hold the
connector cover to avoid tension on the housoing.
$ Tighten the connector by hand only. Do not use tools which
may damage the connector.
$ Always disconnect power before connecting or disconnecting
the connector.
$ Be sure that the connector is tightened securely. The sesnor
enclosure rating may be reduced or the connector may get
loosened.
J MAINTENANCE AND INSPECTION
Cleaning
$ Solvents damage the casing of the sensor. Do not use
solvents to clean the sensor.
EEPROM Writing Error
$ If a teaching data error occurs with the operation indicator
flashing due to a power failure or static noise, perform the
teaching operation of the sensor again.
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