E39-R3 datasheet(24/27 Pages) OMRON

24 / 27 page

Photoelectric Sensors Technical Guide

Power Supply

When using a commercially available switching regulator, ground the

FG (frame ground) and G (ground) terminals.

If not grounded, switching noise in the power supply may cause

malfunction.

Example of Connection with S3D2 Sensor Controller

DC Three-wire NPN Output Sensors

Reverse operation is possible using the signal input switch on the

S3D2.

● Mounting

Attachment to Moving Parts

To mount the Photoelectric Sensor to a moving part, such as a robot

hand, consider using a Sensors that uses a bending-resistant cable

(robot cable).

Although the bending repetition tolerance of a standard cable is

approximately 13,000 times, robot cable has an excellent bending

tolerance of approximately 500,000 times.

Cable Bending Destruction Test (Tough Wire Breaking

Test)

With current flowing, bending is repeated to check the number of

bends until the current stops.

The testing conditions of the standard cable and robot cable are

different.

Refer to the values in the above table to check bend-resistant

performance under actual working conditions.

S3D2

Blue 0 V

Black OUT

Brown +12 V

Specimen

Standard cable

VR (H) 3 x18/0.12

Robot cable: Strong,

conductive electrical wire

2 x 0.15 mm2, shielded

Test

Bending

angle (

θ)

Left/right 90° each

Left/right 45° each

Bending

repetitions

---

60 bends/minute

Weight

300g

200g

Operation

per bending

(1) through (3) in

figure once

(1) through (3) in

figure once

Bending

radius of

support

points (R)

5 mm

2.5 mm

Result

Approx. 13,000 times

Approx. 500,000 times

Weight

(1)

(3)

(2)

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