G

G-67

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Dual Channel Controllers

CM-S4 Control Unit

The CM-S4 controller is capable of monitoring up to four,

magnetically coded switches with 1 N/O + 1 N/C contacts up to

category 3 according to EN954-1. The CM-S4 has a dedicated

dual channel input for each switch and has LED status indicators

for each channel. The CM-S4 has 1 N/O safety contact and 1 N/O

Aux contact. External Device Monitoring (EDM) is available using

Y1,Y2 inputs.

CM-S30 Control Unit

The CM-S30 controller is capable of monitoring one magneti-

cally coded switch with 1 N/O + 1 N/C contacts up to category

4, or two switches to category 3 according to ISO 13489-1. The

CM-S30 control unit is capable of monitoring up to 30 convention-

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

4 when used with more than two switches. The CM-S30 controller

has 2 N/O safety contacts and 1 N/C Auxiliary contact. External

Device Monitoring (EDM) is available using Y1,Y2 inputs.

Applications (continued)

CM Series Safety Interlock Switches

CM-S4 Application Diagram

CM-S30 Application Diagram (Cat 3)

CM-S30 Application Diagram (Cat 4)

WH

K1

K1

K1

K2

UB

K1

K1

F2

K2

START/

FEEDBACK LOOP

MONITORED AUTO

RESTART

K3

CHANNEL 1

CHANNEL 21

BRN

YE

GN

24VAC/DC

N (0 Volt)

A1 A2

HL1

H73 H74

Y1

Y2

Y3

14

24

32

HL2 H22

13

23

31

WH

BRN

YE

GN

GN

GN

GN

CM-S30

WH

A1 A2

HL1

K1

K1

K1

K2

UB

K1

K1

F2

K2

H73 H74

Y1

Y2

Y3

14

24

32

MONITORED AUTO

RESTART

K3

CHANNEL 1

HL2 H22

13

23

31

BRN

YE

GN

N (0 Volt)

24VAC/DC

START/

FEEDBACK LOOP

CHANNEL 21

GN

GN

GN

CMS-S30

Select models are available for Rapid Delivery.

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

K1

K1

K2

K2

UB

D12

D12

D11

K1

control logic

READ HEAD 1

CHANNEL 1

CHANNEL 3

CHANNEL 4

FEEEDBACK LOOP

YE

A1

A2

1

2

3

4

GN WH BN

GN

RD

RD

RD

GN

CHANNEL 2

D21

OUT

GN

ID

GN

D31

GN

D41

GN

D12

READ HEAD 2

READ HEAD 3

READ HEAD 4

YE

5

6

7

8

9

10

11

12

15

16

17

18

14

24

Y1

Y2

13

GN WH BN

BN WH YE

GN

BN WH YE

GN

24VAC/DC

N (0 Volt)

K2

K3

K4

23

D42

RD

CM-S4

*23-24 should not be used as safety output.