WLSD2-TH datasheet(46/52 Pages) OMRON

46 / 52 page

WL-N/WLM-N

Using a WL

@-2N Switch Mounted from the Side

If you replace a previous Switch with a WL

@-2N-N Switch, a Mounting

Plate (sold separately) is available to maintain mounting compatibility.

If you use the Mounting Plate, the Switch mounting holes and actuator

position will be compatible. (The position of the dog will not need to

be changed.)

Operation

• Carefully determine the position and shape of the dog or cam so that

the actuator will not abruptly snap back, thus causing shock. In order

to operate the Limit Switch at a comparatively high speed, use a dog

or cam that keeps the Limit Switch turned ON for a sufficient time so

that the relay or valve will be sufficiently energized.

• The method of operation, the shape of the cam or dog, the

operating frequency, and the travel after operation have a large

influence on the durability and operating accuracy of the Limit

Switch. The cam or dog must be smooth in shape.

• Appropriate force must be imposed on the actuator by the cam or

dog in both rotary operation and linear operation.

If the dog touches the lever as shown below, the operating position

will not be stable.

• Unbalanced force must not be imposed on the actuator. Otherwise,

wear and tear on the actuator may result.

• With a roller actuator, the dog must touch the actuator at a right

angle. The actuator or shaft may deform or break if the dog touches

the actuator (roller) at an oblique angle.

• Make sure that the actuator does not exceed the OT (overtravel)

range, otherwise the Limit Switch may malfunction. When mounting

the Limit Switch, be sure to adjust the Limit Switch carefully while

considering the whole movement of the actuator.

• The Limit Switch may soon malfunction if the OT is excessive.

Therefore, adjustments and careful consideration of the position of

the Limit Switch and the expected OT of the operating body are

necessary when mounting the Limit Switch.

• When using a pin-plunger actuator, make sure that the stroke of the

actuator and the movement of the dog are located along a single

straight line.

Others

• For long term (over a year) storage, check according to Operating

characteristics, Contact resistance and Dielectric strength at least.

And check with using condition.

• The durability of the Switch is greatly affected by operating

conditions.

Evaluate the Switch under actual working conditions before

permanent installation and use the Switch within a number of

switching operations that will not adversely affect the SwitchÅfs

performance.

30.2

@-2N

Mounting Plate

Replacing a Switch

with the WL

@-2N-N

Mounting Plate

Set

contents

Model

WLN-P001

Plate mounting

bolts (2)

Plate (1)

Switch mounting

bolts (2)

Incorrect

Correct

Snapped

back

Abruptly

actuated

Incorrect

Correct

Snapped

back Abruptly

actuated

Incorrect

Dog

Correct

Incorrect

Correct

Roller

Dog

Correct

Incorrect

Dog

Operating

body

Install a stopper.

PT (Pretravel)

FP (Free position)

OP (Operating position)

OT (Overtravel)

TTP (Total travel position)

Reference line

70% of

rated OT

100% of

rated OT

Distance to the

optimum setting range.

Optimum setting range

Correct

Stopper

Incorrect

Correct

Operating

body

Operating

body

WLSD2-TH Datasheet(PDF) 46 Page - Omron Electronics LLC

WLSD2-TH Datasheet(HTML) 46 Page - Omron Electronics LLC

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52

Datasheet Download

Link URL