MACH NE SAFETY HINEI
AFETY
SUPPLEMEN Considerin the o tio When ensurin en ensuring co compliance w th liance withmach ne safety reg atio ver, it is im rtant to ar in
SUPPLEMENT FEAT RE FEA ATURE idering the options chiine safety regullations i it is t is
important to consider all of the system options available to pick them st appropriate for your needs. Kevan Cow ey ofWi Electric explains the key benefits of software-based systems
portant to consider al of the systemoptions avai ble to pick the most appropriate for your needs. Kevan Cowley of Wieland Electri explains the key benefits of software-based system
However, it is important to bear in mind thatthat wiring complexity can vary considerably between different types of m dular safety systems.
ELEC RICAL OR SOFTWARE co trol systems – electrically co
software-based. Clearly, oject cri eri cost, the preferred
ELECTRICAL OR SOFTWARE SYSTEMS There are essential
EMS?
There are essentially two types of m dular safety control systems – electrically configurable and software-based. Clearly, mechanically configurable systems tend to have more complex wiring so if the proj
two types of modular safety igu able an
echanical y configurabl
systems tend to h ve m re com lex w ring so if the project criteria include reduction of complexity and cost, the preferred option willl usuallly be a software system with centralised I/O.
l u ly b software system ith centralised I/O
In this respect, just as there is variation within dular systems overall, there is also variation in complexity between different types of software- based systems. So this also needs to be borne in to the compllexity of
mind, especially in relation to the co
n recent years w have seen significant changes to the requirements for m chi e safety. These, i turn, have created opportunities for machinery anufacturers to take advantage of new hardware and software designs that not only ensure compliance but also reduce complexity to help th systemdesign, installation and operation. e m st familiar of these is pro chine Safety Directive (as defined i
I
n recent years we have seen significant changes to the requirements for
turn, have created opportunities for m chi ery manufacturers to take advantage of new hardware and software designs that not only ensure compliance but also reduce complexity to help with system design, installation and operation. The most familiar of these is probablly the Machine Safety Directive (as defined in either ENeither EN ISO 13849-1 or the alternative EN (IEC) 62061), but there are also specific standards relating to parti ular types of equipment. A good example of this is E 16
y th
balers that are used for compacting w ste. Compliance with EN16500 is greatly facilitated by the use of the new configurable safety control systems that have recently come on to the market. This was clearly evidenced during a recent project iinvolving a manufacturer of a wide range of balers for use ifor use in waste recycling. Clearly the company needed to ensure its machines comply with EN16500-2014, but at the same time wanted to achieve the m st straightforward and cost- effective solution. The answer proved to be the re- development of a safety and control systemthat kes use of the latest hardw re and software products. This approach del vered a number of fits, inclu
ISO 13849-1 or the alternative EN (IEC) 62061), but there are also specific standards relating to particular types of equipment. A good example of this is EN16500-2014, which relates specifically to balers that are used for compacting waste. Com liance w th EN16500 is greatly facilitated by the use of the new configurable safety control systems that have recently com on to the m rket. This w s clearly evidenced during a recent projoject nvolvin
14, w ich relates specifically to factu er of a needed to ensure its ra e of b lers
ste recycl g. Clearly the company chines comply w th
EN16500-2014, but at the same time w nted to achieve the most straightforward and cost- effective solution. The answer proved to be the re- development of a safety and control system that makes use of the latest hardware and software products. This approach delivered a number of benefits, including achieving full compliance, reducing wiring requirements, reducing control panel sizes and ensuring control system
evin full co lia ce,
reducing w ring requirem nts, reducing control panel sizes and ensuring control system
standardisation throughout the company’s ranges. At the heart of these newer, m re advanced systems are m dular, conf urabl
safety control
therefore the overal complexity. Such system deliver a wide range of benefits for all aspects of machine safety compliance.
standardisation throughout the company’s ranges. At the heart of these newer, more advanced systems are modular, configurable safety control systems that use centralised input/output (I/O) systems to reduce the hard
deratio ex ty o
achine safety. These, in modullarity is available. If a system has a fixed number of I/Os this may mean that the system does not exactly meet the project’s requirement for I/Os, so that it may be necessary to purchase re u its than are req ired. T is is p rticu arly issu in sm ller a
the w ring requirem nts for m nitoring faults. Another important consiideration is h w much arity is availab e. If a system r of I/O this m
the wiring requirements for monitoring faults. r im rtant co
is ho th does not exactly meet the pro ikely to th syste ojject’s requirement
for I/Os, so that it m y be n cessary to p rch se more units than are required. This is particularly llikely to be issue in smaller appllications and canca even make the use of modular systems financially unviable, so that the other benefits of such systems are mssed.
ica io
requirements, comes w th systems that offer the controller separately from the I/O modulle. This makes it very easy to match the I/O requirement precisely to the requirements of the system
roller sep rately fro the I/O e. T is
kes i very easy to m tch the I/O requirement precisely to the requirements of the system.
ENHANCED NETWORKS Increasiingly, there
ENHANCED NETWORKS Increas ngl
there iis a requ ement for m chi es a requiirement for machines
to be integrated into a wider network. It is therefore essential to ensure that any software- based systemis capable of com com sh
d also roller to sen diagnostic i formation through these gateways. ate a self- alidatin
Additional y, a software-based, networked system can incorporate a self-validating verification process to prevent mistakes and underpin compl ance.
lin f o s insta led It is
to be integrated into a w der network. It is therefore essential to ensure that any software- based system is capable of communicating across a common protocol that meets your requirements. It shoulld also be possible for the controller to send diagnostic information through these gateways. Additionally, a software-based, networked systemcan incorp
nicating across a
n protocol that meets your requirements. ssible for the co
verification process to prevent mstakes and underpin compliance. Inclusion of date and time stamp verification is also of great assistance when co
clusion of date and ti
stamp verification i also of great assistance w en compiiling proof of what was installed. It is certainly a more efficient approach than the more traditional and ti
systems that use central ed input/output (I/O systems to reduce the hard wiring requirement and therefore the overall complexity. Such systems del ver a wide range of benefits for al aspects of chine safety compliance.
ring requirement and
certainly a m re efficient approach than the m re traditional and time-consuming approach of producing written reports, diagrams and photographs for systemverification.
e-consumng approach of
producing wri ten reports, diagram and photographs for system verification.
Wiela land Ele tric
www.wiwww.wieland.co.uk
lectric d.
/AUTOMATION AT /AUTOMATION T: 01483 531213 T: 01483 531213 +44 (0)161 974 3250
uk-sales@elobau.com www.elobau.com
is sensors
Perfect monitoring and fast response. Disruption
registered immediately.
These IP69K safety switches have a compact, modern design, and offer high protection against manipulation. Designed to suit any application, they are available in either 153 or 165 for- mats, and as magnetically actuated or RFID. In addition the RFID version can be used as a stand-alone solution.
A higher degree of flexibiility, with the ability to closely tailor the solution to a project’s specific requirements, comes with systems that offer the co
even m ke the use of m dular systems financi unviable, so that the other benefits of such systems are missed. er d
ree of flex closely tailor the solutio
lity, w th the a ility to to a pro
oject’s specific s a fixed ch
In this respect, just as there is variation w thin modular systems overall, there is also variation in complexity between different types of software- based systems. So this also needs to be borne i , esp cially in relatio
clude reduction of com exity tio
wiring com exity can vary consi erably between different types of modular safety systems.
Bodyguard
The
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