Omron CM-S221, MA, MA-15, MA-35 Operating Instructions Manual

CM-S2

21 safety switches are a coded magnet safety switch

for use in machine guarding applications.
Designed for use in applications where increased security is

required, the CM-S221 has a coded magnetic actuator and
cannot be fully operated with a single magnet.

The CM-S221 switches are designed to be connected to a
safety control circuit which has less than 0.5 Amps
inrush current.

The CM-S221 is manufactured in a robust ABS housing and
fully sealed to IP67 and can be used in wet or dusty
environments.

With correct installation, the CM-S221 safety switches comply
with the guidelines given in EN1088.

CE Complies with the relevant sections of the CE

marking directive.

UL 508 Industrial Control Equipment

EUROPEAN DIRECTIVES

Machinery Directive 98/37/EC
Low Voltage Directive 73/23/EC
Electromagnetic Compatibility Directive 89/336/EC

EUROPEAN STANDARDS

EN292 Safety of Machinery

Basic concepts, general principles for design.

EN 60204 Safety of Machinery

Electrical equipment of machines.

EN 954-1 Safety of Machinery

Safety related parts of controls systems

EN 1088 Interlocking devices associated with guards.
EN

60947-5-3

Safety of Machinery
Specification for low voltage switchgear and
control gear.

Interlocke

d guards where door locking is not required.
Food and Beverage packing/filling systems
Dairy
Pharmaceutical
Paper Industry
Can Forming and Filling, (Aluminum, Steel, Plastic)
Semiconductor Manufacture/Assembly.

Description

A Declaration of Conformity can be obtained from the
Omron Scientific Technologies, Inc. web Site: www.sti.com

Whe

n the safety switch and actuator are within the specified
operating range (see table on page 3 for switching
distances), the N/C contacts will be closed and the N/O
contacts will be open.

When the actuator moves out of the operating range, the N/C
contacts will open and the N/O contacts will close. Both the
N/C and N/O contacts may be used for safety.

The CM-S221 safety switch and actuator are designed to
approach each other from most angles. When the switch is
closed the targets on the printed face of the switch must be
aligned.

Operation

Applications

Approvals

Certificate of Conformity

Safety,
Technology
& Innovation

CM Series

This information is designed to help suitably qualified
personnel install and operate Omron Scientific Technologies,
Inc. safety switch equipment.
Before using this product, read this guide thoroughly along
with any relevant European and/or National Standards e.g.
Machinery Directive 89/392/EEC and it’s Amendments,
Provision and Use of Work Equipment Regulations.

Further information can be obtained from

Omron Scientific Technologies, Inc.

KEEP THIS GUIDE FOR FUTURE REFERENCE

Operating Instructions for CM-S221 Safety Switches

Listed

The CM-S221 safety switches can approach each other from
most angles.

When the switch is closed the targets on the printed face of
the switch must be aligned.

Mount the switch on to the machine frame and the actuator on
to the opening edge of the door. Always try to mount the
switch on non-ferrous material.

Ferrous materials may reduce the switching distance.

Use the tamper proof screws.

Do not use the safety switch as a door stop. Leave a minimum
of 50 mm between any adjacent switches.

EN 1088
Provides some mounting suggestions, see example opposite.

When fixing the safety switch to a sliding door (A), ensure that
when the door is opened (B) it is not
easily accessible, helping prevent the system being
overridden.

All contacts should be fused externally

DC

CM-S221

0.2 Amps

Mounting

Contacts & Connections

External Fusing

PRE-WIRED SWITCHES

WRONG!

Minimum 50mm

Leave a 2mm Gap
to prevent damage.

A

B

Red

Black

Green

Blue
White
Yellow

CM-S221