Safety interlock Switches
mc-S Series
compact coded magnetic Safety
interlock Switch and control Unit
• Dual channel, fully monitored system; meets Category 3 when
single MC-S Series switch and control unit are used; MC-S6
meets Category 4
• External Device Monitoring (EDM) with automatic or manual reset
• NEMA 6 switch enclosures in plastic or stainless steel with
connector satisfy most application requirements
• Magnetically coded switches are tamper resistant to common
magnets
• Misalignment tolerance of (5 and 9 mm) reduces nuisance tripping
• A large number of switches may be used with a MC-S Series control unit
• MC-S6 control unit provides individual monitoring and indication for up
to 6 switches and a N/O delayed output
• Mechanical interlock switches may be used with a MC-S Series control
• MC-S Series controls may replace a safety relay in some applications
• Auxiliary contacts available for individual guard door monitoring on MC-S switches
r
MC-S
Rev. 9.10
C
US
Conforms to EN954-1, EN1088, EN60204-1
UL and C-UL listed
g
Actual Size
type 1 Sensor
1.89 in.
48 mm
Description
type 2 Sensor
0.75 in
19 mm
The MC-S Series is a tamper
resistant non-contact switch
that operates with its own
control unit. As a fully monitored
dual channel system, a single
MC-S Series switch and MC-S
Series Control Units 1 or 2
combine to fulfill Category 3
requirements. Control Unit 6
with 2 to 6 MC-S switches fulfills
Category 4 requirements for the
N/O outputs and Category 3
MC S
3
Series
for the N/O delayed output.
The Control Units provide
EDM (External Device
Monitoring, also called MPCE
monitoring) with an automatic
or manual reset. This allows the
Control Units to replace a safety
relay in some applications.
The NEMA 6 encapsulated
IP 67
design makes it ideal for harsh
MADE IN EC
environments.
The Control Units can be
used with a large number of
MC-S switches for applications
with multiple guard doors. The
Control Unit provides individual
monitoring and LED indication
for up to six MC-S switches.
Mechanical switches and
MC-S switches may be used
together with a single MC-S
Control Unit for applications
requiring both non-contact and
mechanical safety interlock
switches.
.98 in.
25 mm
MC S Series
3.23 in
82 mm
IP 67
MADE IN EC
OmrOn Scientific technOlOgieS, inc.
USA
Tel. 1/888/510-4357
canada
Tel. 1/866/986-6766
For the Latest Information
On the Internet:
www.sti.com
g1
mc-S Series
Safety interlock Switches
Operation
Operating Principle
On presenting the actuator to the switch,
the coded, high intensity magnetic field
from the actuator causes the contacts to
close. On removing the actuator (opening
the door), the safety contacts open, isolat-
ing the machine.
MC S Series
connector configurations
mc-SS2 Stainless Steel
8-Pin Male,
Micro DC, M12
SWITCH
Blue
N/C
Red
M12
IP 67
MADE IN EC
Green (ground)
N/O
Grey
Yellow
Black
White
mounting examples
Auxiliary Circuit - not for safety use (N/O or N/C)
8-Pin Female,
Micro DC, M12
INCLUDED CABLE
Red
Blue
M12
Operation: target face to target face
g
Grey
White
Black
Yellow
Green
contact Arrangements
NOTE:
ACTUATOR MUST NOT STRIKE SENSOR
8-Pin Female,
Micro DC, M12
ACCESSORY CABLE 44512-0620
White Brown
M12
Guard Stops
9
Face to face
distance (mm)
Blue
Red
Pink
Grey
Yellow
Green
MC-S
Type 2
Type 1 & 3
5
0mm
Misalignment
tolerance (mm)
3 4
Misalignment Tolerance (when mounted
min 1mm
on non- ferrous materials).
max 3mm - type 1 & 3
max 4mm - type 2
Recommended gap between sensor and actuator.
mc-S3
4-Pin Male,
Micro DC, M12
SWITCH
12
11
Safety Circuit 1 (N/C)
M12
2
3
1
4
Safety
Circuit 2
(N/O)
33
34
4-Pin Female,
Micro DC, M12
ACCESSORY CABLE 44512-0600
Brown
White
M12
1
4
2
3
✎
Universal Mounting Brackets
can be used with this product.
See accessories on www.sti.com
Black
Blue
g2
OmrOn Scientific technOlOgieS, inc.
USA
Tel. 1/888/510-4357
canada
Tel. 1/866/986-6766
For the Latest Information
On the Internet:
www.sti.com
mc-S Series
Safety interlock Switches
Applications
Typical applications are on sliding guard
doors or swinging guard doors.
MC-S
Actuator
MC-S
Sensor
Red
Green
Yellow
Blue
1 2 3 4
MC-SS2
Actuator
MC-S
Control Unit
MC-SS2
Sensor
Green
Red
Gray
Yellow
Blue
1 2 3 4
Black
White
Auxiliary Contacts
for Indication - N/C or N/O
Black
White
MC-S
Control Unit
Auxiliary Contacts
for Indication - N/C or N/O
24 VAC/DC
Blue
MC-S Series
Actuator
MC-S Series
Sensor
Guard
Closed
Yellow
Green
2 1 A1 +
33 23 21
Yellow
STOP
START
K1 (Aux)
K2 (Aux)
Momentary
Push Button
Momentary
Push Button
L1
L2 L3
g
MC-S2 Series
Control
Unit
3 4 A2 - X1 X2
Green
Red
K2 (Aux)
32 14 24
K1 (Aux)
Fuse
Fuse
K1
K2
CONTACT
PROTECTION
E.G. Thermal
Cut Out
K2
RESET
Momentary
Push Button
K1
M
Single sensor and two contactors with manual reset and EDM (External Device Monitoring). Machine will start when
guard is closed, auxiliary contacts at K1 and K2 are closed (i.e. both contactors are off), reset button is pressed and
then start button is pressed.
24 VAC/DC
MC-S Series
Actuator 1
MC-S Series
Sensor 1
Yellow
Green
Blue
Yellow
STOP
START
K1 (Aux)
K2 (Aux)
Guard
Closed
Momentary
Push Button
Momentary
Push Button
Red
L1
2 1 A1 +
31 13 23
L2 L3
L1
L2 L3
Blue
MC-S Series
Actuator 2
MC-S Series
Sensor 2
Guard
Closed
Yellow
Green
MC-S2 Series
Control
Unit
3 4 A2 - X1 X2
32 14 24
K1 (Aux)
Fuse
Fuse
K1
CONTACT
PROTECTION
E.G. Thermal
Cut Out
K2
K2
Blue
Red
MC-S Series
Actuator 3
MC-S Series
Sensor 3
Guard
Closed
Yellow
Green
Green
Red
K2 (Aux)
Momentary
Push Button
RESET
K1
M
M
Three sensors and two contactors with manual reset and EDM (External Device Monitoring). Machine will start
when all guards are closed, reset button is pressed and then start button is pressed. NOTE: The use of multiple
sensors connected to a single control unit is only suitable in applications where each guard door is always
opened and then shut individually. Otherwise some single faults may not be detected and unintentional lockout
reset may occur if two or more guard doors are open at the same time.
OmrOn Scientific technOlOgieS, inc.
USA
Tel. 1/888/510-4357
canada
Tel. 1/866/986-6766
For the Latest Information
On the Internet:
www.sti.com
g3
mc-S Series
Safety interlock Switches
Specifications
electrical
Power Supply:
Power Consumption:
Safety Inputs:
Max Input Resistance:
Min. Approach Speed:
Safety Contacts:
Auxiliary Contacts:
Auxiliary Contact Rating:
Relay Outputs:
Auxiliary Contact of Controls:
N/C Operating Distance:
mc-S Series control Units
24 VAC/DC ± 10% - Control 1
24 VDC ± 10% or 24/110/220 VAC - Control 2 & 6
< 2 VA Control 1; < 4 VA - Control 2 & 6
1 N/O + 1 N/C for controls 1 & 2 (x6 for Control 6)
Red/Blue - 200
Ω;
Green/Yellow - 150
Ω
Typically 10-17 mm/sec.
—
—
—
1 N/O + 1 Semi Aux. - Control 1
2 N/O + 1 N/C Aux. - Control 2
100 mA, 24 VDC and 230 VAC - Control 1
2 A, 24 VDC and 230 VAC - Control 2 and 6
—
mc-S Series Switches
—
—
—
—
1 N/C + 1 N/O
1 N/C or 1 N/O
100 mA, 24 VDC and 230 VAC
Control 6 Delayed Output (0.6-30 s)
3 N/O + 1 N/O Delayed, 1 N/C Aux. - Control 6
—
On = 5 mm; Off = 11 mm Type 1 and Type 3
On = 9 mm; Off = 12 mm Type 2
On = 10 mm; Off = 13 mm Type 2 stainless
100 mA/230 VAC
100 mA/24 VDC
—
—
—
—
—
—
4 x M4 screws, M18 x 1 mm pitch for MC-S3
ABS plastic - Type 1 & 2; nylon - Type 3;
stainless steel - Type 2 stainless
Pre-wired cable to 10 m MC-S1, S2,
Connector MC-SS2, MC-S3
100 g (3.5 oz.) plastic, 600 g (1-lb. 5-oz.) steel
Red or Stainless steel
—
—
1 x 10
6
IP67 (NEMA 6); (IP68 for stainless)
-10 to 55°C (14 to 131°F) Plastic
-25 to 125°C (-13 to 257°F) Stainless
90% RH at 50°C (122°F)
Max Switched AC:
Max Switched DC:
Min Switched Current/Voltage:
Impulse Withstand Voltage:
Max Drop-Out Time:
Max Output Fuse:
g
Reset Mode:
External Device Monitoring:
mechanical
Mounting:
Case Material:
Max Wire Size:
Weight:
Color:
Indication:
4 A/250 VAC
2 A/30 VDC
10 mA/10 V AC/DC
2500 V
25 m/sec
5 A quick acting on AC, 3 A quick acting on DC
(3 A quick acting on AC/DC Control 6)
Automatic/Manual
N/C loop between x1 and x2
35 mm (1.38 in.) DIN Rail
Polycarbonate
2 x 1 mm (20 AWG) stranded
2 x 1.5 mm (15 AWG) solid
147 g (5.2 oz.) - Control 1, 590 g (21 oz.) - Control 2,
990 g (35 oz.) - Control 6
Red
LED 1: Green = Output Closed
LED 2: Red = Power On Controls 1 & 2
LED 2: Green = Power on Control 6
1 x 10
6
IP40 (NEMA 1)
-10 to 55°C (14 to 131°F)
Mechanical Life:
environmental
Protection:
Operating Temperature:
Humidity:
90% RH at 50°C (122°F)
compliance
Standards:
EN954-1, EN1088, EN60204-1
Approvals/Listings:
CE marked for all applicable directives, UL and C-UL
Specifications are subject to change without notice.
Note:The safety contacts of the Omron STI switches are described as normally closed (N/C) i.e., with the guard closed, actuator in place, and the
machine able to be started.
g4
OmrOn Scientific technOlOgieS, inc.
USA
Tel. 1/888/510-4357
canada
Tel. 1/866/986-6766
For the Latest Information
On the Internet:
www.sti.com
7
0.28
4.5
0.18 19
0.75
7
5
0.2
5
0.2
19
0.75
4.5
0.18
0.28
Series
mc-S
19
0.75
7
19
Safety interlock Switches
0.75
Dimensions
FERROTEK CONTROL UNIT
22.5
0.89
99
3.9
45.5
1.79
69
2.72
75
2.95
LED's
50
1.97
38
1.5
36
1.42
120
4.72
57
2.24
(mm/in.)
82
3.23
35 DIN rail
1.38 Mounting
73
2.87
35
1.38
Din Rail
Mounting
FERROTEK REMOTE
INDICATOR UNIT
Control Unit 2
Control Unit 1
118
4.65
90
3.54
4.8
0.19
24
0.94
M4
6.0
0.24
13
0.51
12
0.47
25
0.98
4.2
0.17
24
0.94
24
0.94
84
3.31
22
48 0.87
1.89
48
1.89
13
0.51
4.8
0.19
22
0.87
25
0.98
12
0.47
M4
g
Control Unit 6
Switch - Type 1
Actuator - Type 1
4.5
4.2
0.18
0.17
SWITCH
7
0.28
=
=
7
0.28
7
SWITCH
4.5
0.18
7
7
0.28
4.5
0.18
9
0.35
ACTUATOR
7
4.5
0.28
0.18
9
0.35
4.5
0.18
ACTUATOR
7
0.28
60
2.36
4.5
49
0.18
1.93
Ø5.1
0.20
Switch - Type 3
=
68
68
2.68
2.68
=
68
2.68
=
73
2.87
=
7
73
73
60
2.87
2.87
82
2.36 49
82
3.23
3.23
1.93
=
73
2.87
Ø5.1
82
0.20
3.23
M18 x 1
8
=
82
3.23
=
7
82
3.23
=
82
3.23
=
82
3.23
=
82
3.23
10
Actuator - Type 3
0.39
Ø30
1.18
7
0.28
5
4.5
0.2 5
0.18 19
19
0.2
0.75
0.75
5
0.2
Switch - Type 2
5
0.2
19
0.75
4.5
0.18
7
4.5
0.28 19
0.18
0.75
Actuator - Type 2
38
1.5
19
0.75
M18 x 1
7
0.28 19
0.75
19
0.75
10
0.39
Ø30
1.18
36
1.42
RROTEK CONTROL UNIT
22.5
0.89
FERROTEK CONTROL UNIT
99
3.9
4.4
8
0.17
5
8
0.20 0.31
99
3.9
36
38
1.42
1.5
33.5
1.32 16.8
0.66
5
0.2
16.8
0.66
39.3
1.55
39.3
1.55
78.5
3.1
4.4
0.17
82
3.23
35 DIN rail
0.31
1.38 Mounting
82
7
3.23
0.28
62.5
2.46
39.3
75
1.55
78.5
2.95
3.1
39.3
1.55
35 DIN rail
1.38 Mounting
69
2.72
75
2.95
LED's
62.5
2.36
16
0.63
57
69
5
2.24
2.72
0.2
57
2.24
LED's
50
FERROTEK REMOTE
1.97
INDICATOR UNIT
FERROTEK REMOTE
INDICATOR UNIT
33.5
1.32
16.8
0.66
19.5
0.77
7
16.8 0.28
0.66
5
0.2
16
0.63
50
1.97
7
0.28
19.5 7
0.77 0.28
Switch - Type 2
Stainless steel
Actuator - Type 2
Stainless steel
OmrOn Scientific technOlOgieS, inc.
USA
Tel. 1/888/510-4357
canada
Tel. 1/866/986-6766
For the Latest Information
On the Internet:
www.sti.com
g5
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