WLD2 datasheet(41/42 Pages) OMRON

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Precautions

Cautions

When a rod or wired-type actuator is used, do not touch the top end

of the actuator. Doing so may result in injury.

Applicable models: WLHAL5 and WL01HAL5 Rod Spring Levers

and WLNJ-S2 and WL01NJ-S2 Steel-wire Actuators.

Correct Use

A short-circuit may cause damage to the Switch, so insert a circuit

breaker fuse, of 1.5 to 2 times the rated current, in parallel with the

Switch. In order to meet EN approval ratings, use a 10-A fuse that

corresponds to IEC269, either a gI or gG.

When wiring terminal screws, use M4 round crimp terminals and

tighten screws to the recommended torque. Wiring with broken

wires, or the incorrect crimp terminals, or not tightening screws to

the recommended torque can lead to short-circuits, leakage cur-

rent, and fire.

When performing internal wiring there is a chance of short-circuit,

leakage current, or fire, so be sure to protect the inside of the Switch

from splashes of oil or water, corrosive gases, and cutting powder.

Using an inappropriate connector or assembling Switches incor-

rectly (assembly, tightening torque) can result in malfunction, leak-

age current, or fire, so be sure to read the instruction manual thor-

oughly beforehand.

Even when the connector is assembled and set correctly, the end of

the cable and the inside of the Switch may come in contact. This can

lead to malfunction, leakage current, or fire, so be sure to protect the

end of the cable from splashes of oil or water and corrosive gases.

Environmental Precautions

When the Switch is used in locations subject to splashes of water or

oil, the material of the seal, which ensures the sealing properties of

the Switch, may undergo changes in shape and quality. This is due

to deterioration (including expansion and contraction), and may re-

sult in reduced performance, ineffective return, and ineffective seal-

ing (leading to ineffective contact, insulation, leakage current, and

fire). Confirm the possible effects of the operating environment on

the Switch before use.

Built-in Switch

Do not remove or replace the built-in switch. If the position of the

built-in switch moves, it can cause reduced performance, and if the

insulation sheet moves (separator), the insulation may become in-

effective.

Correct Tightening Torque

If screws are too loose they can lead to an early malfunction of the

Switch, so ensure that all screws are tightened using the correct

torque.

No.

Type

Torque

Head mounting screw

0.78 to 0.88 N S m

Cover mounting screw

1.18 to 1.37 N S m

Allen-head bolt (for

securing the lever)

4.90 to 5.88 N S m

Terminal screw

0.59 to 0.78 N S m

Connector

1.77 to 2.16 N S m

Main Unit screws

4.90 to 5.88 N S m

In particular, when changing the direction of the Head, make sure

that all screws are tightened again to the correct torque. Do not al-

low foreign objects to fall into the Switch.

Installing the Switch

To install the Switch, make a mounting panel, as shown in the follow-

ing diagram, and tighten screws using the correct torque.

Standard/Overtravel model

Overtravel model (side

installation)

Mounting holes

Four, 5.2 +0.2

dia. holes

Mounting holes

Two, 5.2 +0.2

dia. holes

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