E32-R16 datasheet(37/38 Pages) OMRON

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E3X-NH

Turning the Power ON

After the E3X-NH/NHB is turned ON, the E3X-NH/NHB will be ready

to operate in 100 ms maximum. If power is supplied to the E3X-NH

and the load is connected to the E3X-NH/NHB independently, be

sure to turn ON the power supply connected to the E3X-NH/NHB

first.

When the power is turned ON, the operation indicator will be ON

momentarily. Note that this will not have an effect on performance

since no control output will be generated.

Mutual Interference Protection Function

Perform two-point teaching if two to three Fiber Units are closely

mounted together, at which time supply power only to the Unit in

teaching operation in turn or block the emitters of the Fiber Units not

in teaching operation.

EEPROM Writing Error

Write errors may result at the time of teaching due to power failure or

static noise, in which case the Unit beeps and the operation indica-

tors flash. If any of these occur, re-input teaching using the teaching

button on the Amplifier.

Minute Sensing Object

This datasheet shows typical examples for detecting minute ob-

jects. These typical examples are for reference use only, because

these example operations were tested on Units sampled at random

from a lot and the values described are average values. Do not

assume that all Units ensure such operations.

Others

When the power is OFF:

The moment power is turned OFF, the E3X-NH/NHB may output a

pulse signal which could affect the operation of the devices con-

nected to it. This will occur more often if power is supplied to the

E3X-NH from an external power supply, thus affecting the con-

nected timer and counter. Use a built-in power supply as much as

possible to avoid this.

In a case where 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-NH 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

Attachment Units

Applications

E39-F10 Fiber Connector

Use the following procedure (refer to the figure) to connect fibers via

the Fiber Connector.

Splice

Retention unit

Fiber Unit

Each Fiber Unit should be as close as possible before they are con-

nected.

Sensing distance will be reduced by approximately 25% when fibers

are connected.

Only fibers with a 2.2-mm dia. can be connected. (Refer to page 9

for applicable Fiber Units.)

Protective Spiral Tube

Insert a fiber to the Protective Spiral Tube from the head connector

side (screwed) of the tube.

Fiber Unit

Protective spiral

tube

Push the fiber into the Protective Spiral Tube. The tube should be

straight so that the fiber is not twisted when inserted. Then turn the

end cap of the spiral tube.

Protective spiral

tube

Fiber Unit

Secure the Protective Spiral Tube on a suitable place with the at-

tached nut.

Mounting panel

Hexagon clamping nut

Fiber Unit

Toothed washer

Protective spiral

tube

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