MECHAN CONTROLS
Standalone Safety
Switch
INSTALLATION GUIDE
SSS
STANDALONE
SAFETY
SWITCH
Type: SSS
1)
PART NUMBERS:
SSS-20-03M
SSS-11-03M
SSS-20-QD
SSS-11-QD
(For a longer cable length, change the
last 3 places in the part of the part num-
ber. I.e. 05m for 5 metre cable)
!
CAUTION
This information is designed to help suitably qualified personnel install and operate Mechan 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鈥檚
amendments, Provision and Use of Work Equipment Regulations. Further information can be obtained from Mechan Controls Limited
***** KEEP THIS GUIDE FOR FUTURE REFERENCE *****
CONTENTS
1
2
3
PART NUMBERS
DESCRIPTION
CONNECTIONS
4
5
6
CONTACTS & FUSES
FIXING INSTRUCTIONS
QUICK DISSCONNECT OPTION
7
8
9
DIMENSIONS
TECHNICAL SPECIFICATION
ORDERING INFORMATION
2)
DESCRIPTION
The SSS safety switch is an electronic tamper-resistant non-contact safety switch for use in machine guarding applications. With correct
fitting, it complies with the guidelines given in EN1088.
When fitted to a machine guard as shown below (5) the normally open safety contact(s) will be closed when the guard door is closed and
will open when the guard door is opened NOTE: The normally closed auxiliary contact will close when the guard door opens.
Mechan Controls also manufacture a range of tamper-resistant and tamper-proof safety systems which may be more suitable for some
applications. For more information ask for details on the
ISIS
;
F-SERIES
and
CODEX
safety systems.
3)
CONNECTIONS
Note: See section 7 for the Quick Dissconect option
4)
CONTACTS & FUSES
SSS-20
Red - Supply 24V dc +ve
Blue - Supply 24V dc -ve
Safety
Black
White Contact No.1
Safety
Brown
Grey
Contact No.2
SSS-20
safety
contacts
3A
3A
}
}
SSS-11
INDICATION
Red - Supply 24V dc +ve
Blue - Supply 24V dc -ve
Safety
Black
White Contact No.1
Auxiliary
Green
Yellow Contact No.1
SSS-11
safety contact
auxiliary contact
3A
3A
}
}
5)
Fixing Instructions
The
SSS
safety switches can ap-
proach each other from any angle.
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.
Use the tamper proof screws provided.
Do not use the
safety switch as a
door stop.
Leave a minimum of
50 mm between any
adjacent switch.
Minimum 50mm
Leave a 2mm Gap
to prevent damage.
Always try to mount the switch
on non-ferrous material. Ferrous
material will reduce the switch-
ing distance.
SLIDING DOORS
EN 1088 provides some mounting
suggestions, like below.
When fixing the switches to a slid-
ing door (A), ensure that when the
door is opened (B) the switch is not
easily accessible, helping prevent
the system being overridden.
WRONG!
A:
Do not mount the switch on
to the hinge side of the door.
B:
Mechan Controls Limited
Electronic Safety Switches
MECHAN CONTROLS LIMITED, 14/16 SEDDON PLACE, STANLEY INDUSTRIAL ESTATE, SKELMERSDALE, LANCASHIRE, WN8 8EB
Tel : + 44 (0)1695 722264 Fax : + 44 (0)1695 729664 WEB : www.mechancontrols.co.uk Email : technical@mechancontrols.co.uk
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