E3G-L1/L3

E3G-L1/L3

17

Precautions

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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

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With high humidity, or where condensation would result

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With corrosive gas.

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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

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The bending radius of the cable should be at least 25 mm.

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When using extended power and signal cable, total length

must not exceed 100 m, with a minimum wire size of

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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)

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

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When connecting or disconnecting the connector, hold the

connector cover to avoid tension on the housoing.

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Tighten the connector by hand only. Do not use tools which

may damage the connector.

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Always disconnect power before connecting or disconnecting

the connector.

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Be sure that the connector is tightened securely. The sesnor

enclosure rating may be reduced or the connector may get

loosened.

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MAINTENANCE AND INSPECTION

Cleaning

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Solvents damage the casing of the sensor. Do not use

solvents to clean the sensor.

EEPROM Writing Error

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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.