WLRCL datasheet(45/52 Pages) OMRON

45 / 52 page

WL-N/WLM-N

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.

• In particular, when changing the

direction of the Head, make sure that

all screws are tightened again to the

correct torque. Do not allow foreign

objects to fall into the Switch.

Wring

In the case of mounting screw

• Use M3.5-nylon insulation covered crimp terminals (round type) for

wiring.

Ex.) V1.25-M3.5(RAP1.25-3.5) (J.S.T. Mfg. Co.,Ltd.)

• Appropriate wire size is AWG16 (1.25mm2).

• Do not supply electric power when wiring.

Otherwise electric shock may result.

• Do not pull out the wires with excessive force.

It may cause of coming off the wire.

• Use crimp terminals for wiring.

• In the case of lump unit, to avoid interference

between lump unit and crimp terminals, wire

according to right wiring figure.

Attach the lump unit spring to terminal screw

certainly otherwise itÅfs possible to be destroyed

or shorted.

• The ground terminal is only installed on models

with ground terminals.

In the case of prewired connecter and direct connecter

• Holding the connecter certainly when pulling connecter.

• Don’t pull the cable holding it.

How to handle

Changing direction of the head

• By removing the screws in the two corners of the head, the head

can be set any of four directions. Be sure to change the plunger for

internal operations at the same time.

Built-in Switch

• Do not remove or replace the built-in switch.

Overtravel Markers

• All Switches with Roller Lever Actuators except for Switches with

Fork Lever Locks and Low-temperature Switches have a set

position marker plate.

• To allow the roller lever type actuator to travel properly, set the

roller lever according to the dog or cam stroke so that the

arrowhead of the lever is positioned within overtravel markers as

shown.

Connectors

• Tighten the connector with the appropriate torque to prevent

deformation.

• Use the OMRON type SC connector series, which is prepared

separately, suitable for outer diameter of cable and inner diameter

of seal rubber.

• Make sure to wrap the connector with the seal tape, except the

connector which has O-ring, to keep the sealability.

• To conform to CSA, use a CSA certified water tight treated conduit

hub.

• 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.

Microload Applications

• The switch contacts can be used both for standard loads and

microloads, but once a contact has been used to open and close a

load it can no longer be used for lower loads. Doing so will damage

the contact surface and reduce contact reliability.

• If an inrush current or other sudden load occurs during a switch

operation, the switch will begin to degrade severely which can

result in reduced durability.

Use a contact protection circuit if required.

Indicator

Indicator-equipped switch has contacts and indicator in parallel.

When contacts are open, leakage current flows through the indicator

circuit and may cause load's malfunction.

Please check the load's OFF current before use the indicatorequipped

switch. Leakage current may cause load malfunction (i.e., the load

may remain ON). Make sure that the load operating current is higher

than the leakage current.

For countermeasures, refer to technical support on your OMRON

website.

Terminal Plate

• By using the Terminal Plate (sold separately), as shown in the

following diagram, the Switch can be used as a single-polarity

double-break switch.

No.

Type

Torque

Screw type

(1)

Head mounting screw

0.78 to 0.88

N•m

M3.5 screw

(2)

Cover mounting screw

1.18 to 1.37

N•m

M4 screw

(3)

Allen-head bolt

(for securing the roller lever)

4.90 to 5.88

N•m

M5 hexagon socket

head cap screw

(3)

Allen-head bolt

(for securing the adjustable

rod lever)

0.88 to 1.08

N•m

M8 hexagon socket set

screw

(4)

Terminal screw

0.59 to 0.78

N•m

M3.5 screw

(5)

Connector

1.77 to 2.16

N•m

G1/2orPg13.5orM20or

1/2-14NPT

(6)

Unit mounting screw

4.90 to 5.88

N•m

M5 hexagon socket

head cap screw

(3)

(4)

(2)

(1)

(6)

(5)

Excessive OT

Setting range

Shortage OT

Setting range

Excessive OT

Arrowhead

Screw down

Head

Terminal Plate

Attach the Terminal Plate

so that the “COM” mark is

oriented as shown on the left.

Terminal Plate Mounting Diagram

(with Two Terminal Screws Removed)

Model

WL-N TERMINAL PLATE

WLRCL Datasheet(PDF) 45 Page - Omron Electronics LLC

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