GLZ1AB datasheet(19/20 Pages) HONEYWELL

19 / 20 page

Limit and Enclosed Switches

A28

Honeywell Sensing and Control 1-800-537-6945 USA

1-815-235-6847 International 1-800-737-3360 Canada

Side Rotaries

The side rotary assemblies incorporate a feature for adjusting the

free position of the side rotary lever. The EN 50041body style allows

infinite adjustment and reclamp. The EN 50047 style allows clamp-

ing in 10° increments. See the following diagrams for details of the

mechanism in each case.

Standard EN 50041 body style

There are two lever mounting options: (1) By fully seating the lever in

one of the four 90° detent positions on the shaft hub which provides

positive lever retention; (2) By mounting the lever on the serrated

portion of the shaft (which enables the lever to be mounted in any

position).

To change the rotary lever’s free position: (1) Use a 3 mm hex Allen

wrench to loosen the Allen screw, as shown in the drawing above;

(2) Back off the lever 2 mm and move it to the desired free position;

(3) retighten the Allen screw; (4) Check to see if the free position is

satisfactory for the application; (5) Repeat the adjustment proce-

dure if necessary.

A teller tab located at the bottom of the lever (see diagram below)

helps prevent lever slippage. It enables the installer to detect the

correct tightening torque. When this tab cannot be moved, the Allen

screw has been tightened properly.

Miniature EN 50047 body style

A serrated coupling is used to set the lever free position in 10°

increments. This adjustment is achieved by: (1) Unscrewing the

combination head screw which holds the lever in place, taking care

not to lose any parts; (2) Readjust the assembly and rotate to the

desired free position; (3) Re-assemble and tighten the combination

screw. (4) Check that the free position is correct for the application

and repeat the adjustment procedure if necessary.

NOTE: The lever can be set in 90° increments by removing the lever

and rotating it to the desired 90° position.

EN 50041 Side Rotary Actuator Direction Adjustment

As furnished, GLS rotary switches will operate when the lever is

rotated from either the left or right. They can be field modified to

operate in one direction only (Clockwise CW; Counter clockwise

CCW) by following these steps: (1) Carefully remove the complete

head assembly; (2) Turn the head assembly upside down as shown

in the drawing below.

(3) Pull the plunger mechanism out and rotate it through 90° degree

increments until the alignment tab points to the desired function

(CW, CCW, or CW and CCW). (4) Push plunger mechanism in. (5)

Reassemble the head assembly and re-test the switch in your

application.

Replacement Instructions

All levers for side rotaries are available as replacment parts. All

basics, except the plug-in, can be replaced. All EN 50041heads can

be replaced. The replacement procedures for these components

are straightforward in nature.

Side Rotary Levers

Remove the old lever from the product being replaced. On EN 50041

product this is achieved by loosening the Allen screw holding the

lever on the shaft. On EN 50047 product this is achieved by un-

screwing the combination screw holding the lever on the shaft.

Replace the lever and tighten the Allen screw or combination screw.

Retest the switch in its application.

Heads

All EN 50041 style switch heads can be removed and replaced.

Remove the old head by unscrewing the four retaining screws on

the head assembly.

Ensure replacement part is identical to one being removed.

Re-test the assembly and ensure correct operation.

Basics

Non plug-in EN 50041 and three conduit EN 50047 body styles.

Basic switches can be removed and replaced by following this

procedure: (1) Remove the cover from the body; (2) Before dis-

connecting the switch wiring, carefully note the wiring arrangement

for your application, particularly the safety ground connection; (3)

Remove the basic switch retaining screw; (4) Remove the old basic

and replace it with the same thing; (5) Use the retaining screw to

install the new basic – ensure that it is correctly seated in the switch

body; (6) Wire the switch terminals as before; (7) Before replacing

the cover – ensure that the switch wires are not twisted or otherwise

lifted from the basic (to prevent them from becoming trapped when

the cover is replaced); then (8) Test the switch in the application.

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