M.D. Micro Detectors
Strada S. Caterina, 235
41122 Modena Italy
Tel. +39 059 420411
Fax +39 059 2539 3
www.microdetectors.com
SAFETY LIGHT CURTAIN TYPE 4
LANGUAGE
Installation and Operation Manual
ENGLISH
M.D. Micro Detectors CAT8ELS1251401 5/38
2.3 General safety instructions and measures of protection
Safety instructions!
To ensure LS4 safety light curtain
s are use to stan ar an in a safe manner it is necessary to observe the following
points:
• For the installation an use of LS4 safety light curtain
as for commissioning it an the repeate technical tests, national
an international regulations apply, particularly:
– Machinery irective 2006/42/EC
– the Directive on work equipment operators 2009/104/EC
– the acci ent prevention prescriptions an safety rules
– other important safety prescriptions.
• The manufacturers an operators of the machine on which the LS4 safety light curtain is use must, in
the relevant authority an un
er their own responsibility, apply all the current safety rules an prescriptions an are also
in charge of their observance.
• It is absolutely necessary to observe the gui elines on checking these operating instructions (see chapter 6
“Commissioning”).
• The checks must be carrie out by qualifie persons, that is by authorize an specially appointe persons, an they
must be ocumente so as to be comprehensible at any moment.
• The operating instructions containe in this manual must be set at the i
sposal of the operator of the machine use
with LS4 safety light curtains.
The machine operator must be e ucate by qualifie personnel an urge to rea the operating instructions.
2.4 Disposal
Dispose of unusable or unrepairable
evices always in observance of current national prescriptions on the subject of
waste isposal.
3.0 DESCRIPTION OF THE PRODUCT
3.1 Brief description
The LS4 series safety light curtains are multi-beam optico-electronic safety evices, built in compliance with the IEC
61496-1 an 2 stan ar s, are Type 4 an therefore applicable for the protection of the operators of systems or
machines un er con itions of frequent interaction with a severely angerous area.
LS4 safety light curtains have a slim profile of 28x30mm, the istance of 28mm refers to the front si e, they have a
rear groove for fastening, they are extremely reliable evices, they provi e two protecte static safety PNP outputs,
so they are not subject to output contact wear or affecte by strong vibration, they are able to etect internal faults,
control external contacts an , in the event of a fault, ensure safe behaviour in any case.
With a free area the level of the two outputs is enable to be high (status ON, outgoing current), with an occupie area
or in case of fault the level is low (status OFF).
The emitters have a Test input, that can be use if the user wishes to check the equipment connecte ownstream
from the safety light curtain (without physically intervening insi e the protecte area), the control stops the emission of
the beams on the projector an enables switching the OSSD from the ON state to the OFF state as long as the control
is active.
There are mo els with ifferent resolutions (minimum etectable iameter) e icate to certain etection of han s,
limbs an bo y; the ifferent resolution for mo els of the same type enables choosing ifferent safety istances.
Safety light curtains are available with resolutions of 14, 20, 30, 40, 50, 90 mm, heights from 160 to 1510mm,
maximum ranges of 3, 4, 10, 12m. Multi-beam safety light gri s are available with 2, 3, 4 beams e icate to access
control.
The Base an standard mo els can be use in ivi ually, the Master, Slave an Final Slave mo els can be use in
a chain of two or three elements, also with ifferent types of optics; this enables creating complex applications in a
simple cost-effective manner, for highly integrate protecte zones even with ifferent resolution or range
requirements.
The Base mo els have only the automatic restart function without controlling the external contacts (EDM).
On the standard an Master mo els it is possible to combine all the functions by wiring as preferre : external
contact control (EDM), automatic starting, manual starting.
All the mo els use M12 connectors with 5 or 8 poles, for the supply/output cables an the interconnection cables
in a chain no shiel ing is require , the output cable can reach lengths of 100m, the interconnection cable 50m, these
features also allow great operational flexibility.
The require operational voltage is 24V
DC
±20%, the absorbe power is mo erate, at most 3W per pair; the
maximum output current is 400mA, suite to rive even power contactors irectly; the blocking functions on restarting
an EDM, present on the standard an Master mo els, enable making versatile an integrate protection systems.
Normally, the environmental protection is IP65+IP6 , suitable also for usty environments or compatible with
phenomena of con ensation, except for the front surface that has strict optical requirements.
Mo els are available with IP69K protection that can be subjecte to washing with jets of hot water up to 80°C an
pressure up to 80 bar; with this level of protection mo els are available with an integrate thermal auto-control system
that moreover enable working at temperatures as low as -25°C an avoi ing con ensation on the optics.
