E3X-N Datasheet, PDF (49/52 Pages) Omron Electronics LLC – Teaching Optical Fiber Photoelectric Sensor

E3X-N
E3X-N
Amplifier Units
Mounting
Mounting
1. Mount the front part on the mounting bracket (attachment) or
a DIN track.
2. Press the back part onto the mounting bracket or the DIN
track.
Note:
Do not mount the back part onto the mounting bracket or
the DIN track first and then mount the front part on the
mounting bracket or the DIN track, or the mounting strength
of the Amplifier Unit may decrease.
(2)
(1) DIN track _E3X-NT
Dismounting
By pressing the Amplifier Unit in direction (3) and lifting the fiber in-
sertion part in direction “4” as shown in the following, the Amplifier
can be dismounted with ease.
(4)
DIN track
(3)
E3X-NT
In the case of side mounting, attach the mounting bracket on the
Amplifier first, and secure the Amplifier with M3 screws and wash-
ers. The diameter of the washers should be 6 mm max.
Mutual Interference Protection Function
In principle, use the E3X-NM (four channels) for the close connec-
tion of a maximum of four Fiber Units.
When closely connecting two to three Fiber Units to more than one
E3X-NT (one channel), perform with/without-object teaching, in
which case teaching must be performed on a single E3X-NT at a
time. Therefore, turn on only the E3X-NT on which teaching is per-
formed. If all the E3X-NTs are turned on, interrupt the emitters of the
Fiber Units on which teaching is not performed.
EEPROM Writing Error
Power interruptions or noise caused by static electricity or other
causes can result in write errors during any part of the teaching pro-
cess from teaching initial operating levels without a workpiece to fi-
nal compensations. These errors include buzzers, lighting of teach-
ing indicators, simultaneous flashing of read/green indicators, light-
ing of operation indicators, and lighting or flashing of stability indica-
tors. If any of these occur, re-input teaching using the teaching but-
ton on the Amplifier.
Others
When power is off:
The moment power is turned off, the E3X-N_ could output a pulse
signal which could affect the operation of the devices connected to
it. This will happen more often if power is supplied to the E3X-N_
from an external power supply, thus affecting the connected timer
and counter. Use a built-in power supply as much as possible to
avoid this.
In the case of the cord is extended, use a wire with 0.3 mm² min. The
total length of the cord should be 100 m max.
Power supply:
If a standard switching regulator is used as a power supply, the
frame ground (FG) terminal and the ground (G) terminal must be
grounded, or otherwise the E3X-N_ can malfunction, influenced by
the switching noise of the power supply.
The supplied voltage must be within the rated voltage range. Unreg-
ulated full- or half-wave rectifiers must not be used as power sup-
plies.
Do not lay wiring to the Optical Sensor together with power lines in
the same piping or ducts. Doing so will cause induction between the
lines, possibly resulting in faulty operation or destruction. Always
lay wiring to the Optical Sensor in separate or dedicated piping.
Power line
Washers
(6 dia. max.)
E3X-NT
Turning Power On
After the E3X-N_ is turned on, the E3X-N_ will be ready to operate
in 100 ms maximum. If power is supplied to the E3X-N_ and the
load is connected to the E3X-N_ independently, be sure to turn on
the power supply connected to the E3X-N_ first.
Output Short-circuit Protection
When the E3X-N_ is turned on or off, no control output will be ON,
even though the operation indicator of the E3X-N_ will be lit for an
instant. If the short-circuit protection function of the E3X-NM (four
channels) is activated, none of the four channels will have any out-
put.
Unused Channels of E3X-NM (Four Channels)
Unused channel protection seals are provided with the E3X-NM. If
all the four channels are not used (e.g., if only three channels are
used), paste an unused channel protection seal to the fiber insertion
hole.
E3X-NT
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