4

D5B

Operating Characteristics

* Reference value

Safety Precautions

Refer to Safety Precautions for All Limit Switches.

Handling

Do not impose a load exceeding 29.42 N on the cable, otherwise the

cable may break. If the cord is to be bent repeatedly, make sure that

the bending radius is at least R20 mm.

Mounting

• Do not tighten the nuts with excessive torque. Refer to the following

for the appropriate tightening torque and mounting dimensions of

each nut.

• The base incorporates special threads that cannot be mounted to

plates with standard tap holes.

• The base may be deformed if it is subjected to an excessive load.

Be careful when mounting the Switch.

Operation

• Do not impose excessive force on the actuator. Even though the

actuator withstands a maximum force of 14.7 N, if the D5B is

repeatedly actuated, make sure that the maximum force imposed

on the actuator is 1.96 N. If the actuator is, however, a wire spring

type, the maximum force imposed must be 0.49 N instead.

• The operating characteristics of the D5B vary with the direction (i.e.,

X, Y, or Z) in which force is imposed. Refer to above.

• The wobble stick model is actuated when force is imposed on the

tip of the wobble stick and the built-in switch unit is closed or

opened. This is different from the NL Limit Touch Switch or D5C

Column Touch Switch in terms of the main mechanism. The NL or

D5C is actuated when the actuator comes into contact with an

actuating object.

• The wobble stick model may break if the stroke is excessive. Make

sure that the total travel (TT) is within the reference value provided

in the datasheet.

• Attach an appropriate cover for protecting the D5B from direct

exposure to sprayed oil or water. No protective cover is, however,

provided together with the D5B.

• The D5B may be damaged by ozone and failures may result if the

D5B is used outdoors. Consult your OMRON representative before

attempting to use the D5B outdoors.

Outdoor environmental conditions may have a bad influence on the

service life of the D5B. Refer to the general precautions of Limit

Switches for details.

Actuator

Hemispheric Plunger

Cone-shaped Plunger

Wobble Stick

Operating direction

Operating

characteristics

Type

M5

M8

M10

M5

M8

M10

M5

M8

M10

Total travel

X, Y

1.0 mm

1.2 mm

1.3 mm

2.2 mm

3.0 mm

4.0 mm

22 mm

23 mm

30 mm

Z

0.8 mm

0.9 mm

1.0 mm

0.8 mm

0.9 mm

1.0 mm

---

Operating force

OF (max.)

X, Y

0.49 N

0.74 N

0.98 N

0.20 N

0.20 N

0.39 N

0.05 N

Z

0.74 N

0.98 N

1.47 N

0.74 N

0.98 N

1.47 N

---

Permissive operating

force (max.)

X, Y, Z

1.96 N

1.96 N

0.49 N

X, Y

0.6 mm

0.6 mm

0.7 mm

0.6 mm

1.4 mm

2.0 mm

11 mm

11 mm

14 mm

Z

0.3 mm

0.3 mm

0.3 mm

0.3 mm

0.3 mm

0.3 mm

---

---

---

Precautions for Correct Use

Type

Appropriate Tightening Torque

(max.)

M5

0.98 N·m

M8

2.94 N·m

M10

3.92 N·m

Size

Type

M5

M8

M10

A (Mounting

hole size)

5

mm

dia.

8

mm

dia.

10

mm

dia.

B (Panel

thickness)

3 to 7 mm

dia.

4 to 6 mm

dia.

6 to 10 mm

dia.

C (Toothed

lock washer

diameter)

9.2 mm

dia.

15 mm

dia.

18 mm dia.

+0.3

0

+0.3

0

+0.3

0