Mechan Controls SCU-1 Installation Manual

MECHAN CONTROLS
Installation Guide : SCU-1 & HE Safety Switches
Keep this guide for future reference
This information is designed to help suitably qualifi ed
personnel install and operate Mechan Safety equipment.
Before using this product, read this guide thoroughly along
with any relevant European and/or National standards e.g.
Machinery Directive 2006/42/EC and it's amendments,
Provision and Use of Work Equipment Regulations.
Further information can be obtained from Mechan Controls

Description

Mechan HE safety switches are magnetically coded, solid
state non-contact safety switches for use in machine guard-
ing applications.
Non-contact operation makes the HE switches easy to
install and tolerant to misalignment. The solid state design
is even more tolerant to shock and vibration, and provides
single point switching which makes for a simpler and more
reliable machine guard interlock.
The additional security of the coded magnetic operation
along with fully sealed IP67 rating make these switches
ideal for use in wet or dusty and harsh environments.
The HE safety switches have been designed to connect to
the SCU-1 Safety Control Unit. When installed correctly, up
to 30 switches can be installed in series.

Operation

The HE safety switch have up to 2 x N/O + 1 N/C bi-
directional solid state outputs along with built in LED(s) for
Indication. When installed on a machine guard, power is
applied, and the switch and actuator are within the speci-
fi ed operating range, the N/O Outputs will be closed, the
N/C Output will be open. When the actuator moves out of
the operating range, the N/O Outputs will open, the N/C
Output will close. (See page 3 for LED Indication.)
The HE safety switch and actuator have an 7mm switching
distance and can approach each other from most angles.
When the switch is closed the targets on the printed face of
the switch must be aligned.
To avoid physical damage, do not use the switch and ac-
tuator as a stop, leave a 1-2 mm gap for best operation and
tolerance to machine guard vibration.

Applications

Interlocked guards where additional security required.
Door locking is not required.
Harsh environments where vibration, water or dust are
problems.
Food and Beverage packing/fi lling systems
Dairy Pharmaceutical Paper Industry
Can Forming and Filling, (Aluminium, Steel, Plastic)
Semi conductor Manufacture/Assembly.

APPROVALS

CE Complies with all relevant sections of the
CE marking directive
TUV CAT 4 SIL 3 PLe

EUROPEAN DIRECTIVES

Machinery Directive 2006/42/EC
Low Voltage Directive 2006/95/EC
Electromagnetic Compatibility Directive 2004/108/EC

EUROPEAN STANDARDS

EN ISO Safety of Machinery
13849-1 Safety related parts of control systems
EN ISO Safety of Machinery - Functional safety
62061 of safety related electrical, electronic and
programmable electronic control systems
EN 60204 Safety of Machinery
Electrical equipment for machines
EN Low voltage switch gear and control gear
60947-5-1
EN 14119 Interlocking devices associated with
guards
EN Safety of Machinery
60947-5-3 Specifi cation for low voltage switchgear
and control gear
Declaration Of Conformity
See back page for declaration of conformity.
CAT 4 SIL 3 PLe
Listed
IND.CONT.EQ
2HA0
®