D-105
E2EL
E2
E
L
Installation
Caution
Correct Use
Installation
Power Reset Time
The Proximity Sensor is ready to operate within 100 ms after
power is supplied. If power supplies are connected to the Proxim-
ity Sensor and load respectively, be sure to supply power to the
Proximity Sensor before supplying power to the load.
Power OFF
The Proximity Sensor may output a pulse signal when it is turned
off. Therefore, it is recommended to turn off the load before turn-
ing off the Proximity Sensor.
Power Supply Transformer
When using a DC power supply, make sure that the DC power
supply has an insulated transformer. Do not use a DC power sup-
ply with an auto-transformer.
Sensing Object
Metal Coating:
The sensing distance of the Proximity Sensor vary with the metal
coating on sensing objects.
Wiring
High-tension Lines
Wiring through Metal Conduit
If there is a power or high-tension line near the cord of the Prox-
imity Sensor, wire the cord through an independent metal conduit
to prevent against Proximity Sensor damage or malfunctioning.
Core Tractive Force
Do not pull cords with the tractive force exceeding the following:
pull force (N) = 20 x cable diameter ( mm)
Mounting
The Proximity Sensor must not be subjected to excessive shock
with a ha mmer when it is installed, otherwise the Proximity Sen-
sor may be damaged or lose the water-resistivity.
Environment
Water-Resistivity
Do not use the Proximity Sensor underwater, outdoors or in the
rain.
Operating Environment
Be sure to use the Proximity Sensor within operating ambient
temperature range and do not use the Proximity Sensor outdoors
so that its reliability and life expectancy can be maintained. Al-
though the Proximity Sensor is water resistive, a cover to protect
the Proximity Sensor from water or soluble machining oil is reco
mmended so that its reliability and life expectancy can be main-
tained. Do not use the Proximity Sensor in an environment with
chemical gas (e. G., strong alkaline or acid gases including nitric,
chromic, and concentrated sulfuric acid gases).
Item
Examples
Power Supply
Do not impose an excessive voltage on the E2EL, otherwise it may
explode or burn.
Do not impose 24 VAC on any E2EL model, otherwise it may ex-
plode or burn.
Load short-circuit
Do not short-circuit the load, or the E2EL may explode or burn.
The E2EL's short-circuit protection function is valid, if the polarity of
the supply voltage imposed is incorrect and within the rated voltage
range.
Wiring
Be sure to wire the E2EL and load correctly, otherwise it may ex-
plode or burn.
F502-EN2-04.book Seite 105 Dienstag, 26. Juli 2005 5:48 17
