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G-63

www.sti.com/info

Conforms to EN292, EN60204-1, EN954-1,

EN1088, EN60947-5-3, EN947-5-3,

EN50081, EN50082, EN61000-6-2,

ISO 13849-1

UL and C-UL listed, TUV certified

Most Diverse and Flexible Line of

Coded Magnetic Safety Interlock

Switches and Controllers

• Combine door switch monitoring and E-stop monitoring by using

the CM-S41 controller

• Monitor is single switch to CAT4 with the CM-S30 controller

• Monitor multiple switches to CAT3 using CM-S4 or CM-S30

controllers

• Monitoring multiple switches on individual channels can be

achieved by using the CM-S21 or CM-S41 controllers. Easily

expand your system by using the CM-SE expansion module.

• All CM switches are rated IP67

• Stainless steel switches are available for harsh environments

• A Rapid Delivery Product: Select models are available for ship-

ment today or within 3 to 5 days

Safety Interlock Switches

CM Series

Description

The CM series of controllers and coded magnetic switches

offers the most flexibility and widest range of options available.

The CM series is comprised of two basic technologies.

Controller Technologies

2-Wire Single Channel Controllers

The CM-S41 and CM-S21 controllers monitor the 2-wire

magnetically coded switches. The CM-S41 and CM-S21 control-

lers use a patented technology which allows them to monitor the

2-wire or single channel switches up to Category 3. The ability to

monitor just a single channel enables the CM-S41 and CM-S21 to

easily monitor multiple switches and provide individual status of

each channel. Both of these controllers are compatible with the

CM-SE expansion module.

Dual Channel Controllers

The CM-S4 and CM-S30 controllers are designed to monitor

conventional read-style, magnetically-coded switches with 1 N/O

+ 1 N/C contacts. The CM-S4 controller can monitor up to four

switches to category 3. The CM-S4 controller offers status indica-

tion for each individual switch. The CM-S30 controller can monitor

one switch to category 4, or two switches to category 3. The CM-

S30 control unit is capable of monitoring up to 30 conventional

read style switches in series, but does not conform to category 3

when used with more than two switches.

Switch Categories

The CM series of switches are all magnetically coded.

The CM series of switches fall into three main categories:

1. 2-wire Coded Magnetic

2. Conventional Read Style 1 N/C + 1 N/O contacts

3. Universal Read Style 2 N/C + 1 N/O contacts

The 2-wire Coded Magnetic Switches are only compatible with

the CM-S21, CM-S41 and CM-SE control units and expansion

module. The Conventional Read Style Switches are compatible

with the CM-S4 and CM-S30 controllers. The Universal Read

Style Switches are unique in design, all three contacts are rated

for safety. This means that Universal Read Style switches can

be used with the CM-S4 or CM-S30 Controllers, or conventional

safety monitoring relays such as the G9SA, SR103 or G9SX-AD,

-BC. This allows the Universal Read Style Switches to be run in

series with E-stop switches or other mechanical door switches.

Typically a category 2 rating would be applied to a system that

incorporates multiple switches wired in series to a standard safety

monitoring relay. A risk assessment should always be performed

by properly trained and authorized personnel.

Select models are available for Rapid Delivery.

Visit this product on www.sti.com for details.

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