2.1Approved purpose and foreseeable improper operation......................................................8
2.1.1Proper use ..................................................................................................................................... 8
The information on the L100 Saf ety Locking Device is divided into tw o documen ts.
Document "L100 Ap pli ca tio n i nfo rma t io n" co ntai ns on ly th e m os t i mp orta nt safety
notices.
ª For the safe implementation, testing and operatio n, down load do cumen t L100
Safe implementation and operation from Leuze website.
Table 1.1:Documents for the L100 Safety Locking Device
Purpose and target groupTitleSource
Detailed information for all
users
L100 Safe implementation
and operation (this document)
About this document
On the Internet, download
from Leuze website.
Basic information for technicians and operating company
L100 Application information Print document part
no. 607244 included in the
delivery contents of the
product
Before using the Safety Locking Device, a risk evaluation must be performed
according to valid standards (e.g. EN ISO 12100-1, EN ISO 13849-1,
EN ISO 14121). For moun ting, o peratin g and te sting, docu ment L 100 Sa fe im plementation and operati on, app licati on infor mation as wel l as all applic able na tional
and international standards, regulations, rules and directives must be observed.
Observe and print out relevant and supplied documents and distribute to the
affected personnel.
Serious accidents may result if the voltage supply is interrupted!
If the voltage supply to the electromagnet of an electromagnetically locked
Safety Locking Device is interrupted, the protective device may be opened
immediately.
The following sta nda rds a pply for the risk e val ua tion a t th e protective device prior
to using the Safety Locking Device:
• EN ISO 14121, Safety of machinery, risk evaluation
• EN ISO 12100-1, Safety of machinery
• EN ISO 13849-1, Safety-related parts of control systems
The realizable category of the integration in control circuits according to
EN ISO 13849-1 is dependent on the used contact block and wiring.
In particular, the fo llowin g nationa l and i nternationa l legal regulatio ns apply for the
start-up, technical inspections and work with Safety Locking Devices:
• Accident-prevention regulations and safety rules
• Ordinance on Industrial Safety and Health and Labor Protection Act
• Device Safety Act
For safety-related information you may also contact the local authorities (e.g.,
industrial inspectorate, employer's liability insurance association, labor inspectorate, labor protection and health authority).
2.1Approved purpose and foreseeable improper operation
2.1.1Proper use
• The Safety Locking Device must only be used after it has been selected in
accordance with the respectively applicable instructions and relevant standards, rules and regulations regarding labor protection and safety at work,
and after it has been installed on the machine, connected, commissioned,
and checked by a competent person.
• When selecting the Safety L ocking Dev ice it must be ensured th at i ts s afetyrelated capability meets or exceeds the required performance level PL
ascertained in the risk assessment.
• It must be in perfect condition and inspected regularly.
• The switching process must only be triggered by an actuator approved for
this Safety Locking Device that is connected to the moveable guard in a
non-detachable and tamperproof manner.
WARNING
A running machine can cause severe injuries!
ª Make certain that, during all conversi ons, maintenan ce work and inspec tions,
the system is securely shut down and protected against being restarted
again.
r
L100 Safety Locking De vi ces mu st b e co nne cted in such a way that a dangero us
state can only be activated while the protective device is closed and so that they
prevent premature opening during the lag time before the dangerous state has
ended. Electromagnetic Safety Locking Devices may only be used instead of
spring-locked Safety Locking Devices in exceptional cases and following appropriate risk evaluation.
Connection conditions:
• dangerous state can be activated only with closed protective device and
locked locking device
• protective device cannot be opened while locking device is locked
Furthermore, the L100 Safety Locking Device must not be used under the
following conditions:
• high concentration of dust particles in the surrounding area
•
rapidly changing ambient temperature (leads to condensation)
• in the event of strong phys ic al sho cks
• in explosive or easily flammable atmospheres
• the mounting locations are not sufficiently stable
• in the event of electromagnetic interference
• the safety of multiple persons is dependent on the function of this Safety
Locking Device (e.g. nuclear power plants, trains, aircraft, motor vehicles,
incinerators, medical devices)
Handling the Safety Locking Device:
ª N
ever unlock the Sa fety Locking De vice before the dangerous stat e has ended.
ª Observe the permissible environmental conditions for storage and operation
(see chapter 14).
ª Immediately replace damaged Safety Locking Devices according to these
instructions.
ª Use cable gland, insulation materials and connecting wires of the appropriate
protection rating.
ª Protect the Safety Locking Device from penetrating foreign bodies (e.g. shav-
ings, sand and blasting agent).
ª Before performing painting work, cover the actuation slot, actuator and name
plate.
ª Immediately clean any contamination from the Safety Locking Device that
impacts function according to these instructions.
ª Make no structural changes to the Safety Locking Device.
ª The Safety Locking Device must be exchanged after a maximum of 20 years.
TNT 35/7-24V
2.1.2Foreseeable misuse
Any use other than that defined under the "approved purpose" or which goes
yond that use of the Safety Locking Device is considered improper use!
be
E.g. - using without non -detachably mounted actuator
• looping into the safety circuit parts that are not relevant to safety
• knows the rules and regulations for labor pr otection, safety at work and
safety technology and can assess the safety of the machine
• knows the instructions for the Safety Locking Device and t he machine
• was instructed by the responsib le indi viduals on the mountin g and opera tion
of the machine and of the Safety Locking Device
2.3Responsibility for safety
Manufacturer and operating company must ensure that the machine and implemented Safety Locking De vi ce func tio n pro perly and that all affected pers on s are
adequately informed and trained.
The type and content of all imparted information must not lead to unsafe actions
by
users.
The manufacturer of the machine is responsible for:
• safe machine construction
• safe implementation of the Safety Locking Device
• imparting all relevant information to the operating company
• adhering to all regulations and directives for the safe starting-up of the
machine
The operating company is responsible for:
• instructing the operating personnel
• maintaining the safe operation of the machine
• adhering to all regulations and directives for labor protection and safety at
work
• regular testing by competent personnel
2.4Exemption of liability
Leuze electronic GmbH + Co. KG is not liable in the following cases:
• Safety Locking Device is not used as intended
• safety notices are not adhered to
• mounting and electrical connection are not properly performed
• reasonably foreseeable misuse is not taken into account
The Safety Locking Device of the L100 series is an electro-mechanical switching
device in a housing made of glass-fibre-reinforced and non-combustible plastic;
the device satisfies protection rating IP 66. By means of the funnel-shaped insertion opening, the ac tuator self-center s, even if the door is s lightly misadjus ted. The
magnet switched currents can be reduced for both variants (adjustable via a
switch). The spring-actuated models (L100-Pxxx-SLM24) are equipped with an
auxiliary release located below the deflection head.
Device description
3
2
1
4
5
6
1Deflection head
2Dust cover
3Insertion opening for actuator
4Auxiliary release (L100-Pxxx-SLM24)
5Housing cove r
6Name plate (connection data, production code and year of manufacture)
With the L100-P3C3-M20-SLM24 and L100-P4C3-M20-SLM24, the safety
contacts clos e wh en the actuator mov es in , a nd the actuator is me chanically held
in the locked positio n by the spring forc e. The dangerous pro cess can be activa ted
via the safety switching devi ce .
After the dangerous proc es s has st op ped , th e o pera tin g v ol tage for unlocking the
electromagnet is applied and the actuator is released. The protective device can
be opened. In the event o f failure of the op erating v oltage, re lease is also pos sible
via the auxiliary release.
4.2Electromagnetic locking
With the L100-P3C3-M20-MLM24, the safety contact for the position monitoring
of the protective d ev ic e c lo se s when th e actuator is move d i n. The electromagnet
is energized and ho lds the actuator in the locked po sition. The da ngerous proce ss
can be activated via the safety switching device.
On release, the voltage supply to the electromagnet is interrupted. The electromagnet releases the actuator and the protective device can be opened.
Safety Locking Devi ces with spring l ocking are suita ble for e.g. positi on monitoring
and locking the following protective devices:
• turning or swiveling moveable guards
• laterally moveable protective gratings or sliding gates
Safety Locking Devices with electromagnetic lock are used primarily as locks for
moveable guards to prevent undesired process interruptions.
By means of the switched-current reduction option, larger systems can be
eq
uipped with multiple L100 Safety Locking Devices. With magnet activation,
possible voltage peaks associated with switching on an d off can be reduced in this
way.
Severe accidents may result if the Safety Locking Device is not mounted
properly!
The protective function of the Safety Locking Device is only ensured if used in
the intended area of application and if it is mounted professionally.
ª Mounting may only be performed by competent personnel.
ª Observe standards, regulations and these instructions.
ª Protect the housing and deflection head from material s penetrating th e enclo-
sure (environmental conditions (see chapter 14)).
ª Test to ensure proper function.
6.1Adjusting the deflection head
ª Unscrew the 2 screws on the deflection head.
ª Turn the deflection head in the desired direction.
ª Tighten the 2 screws on the deflection head with 0.7–0.9 Nm.
ª Close unused opening with the dust cover.
Serious accidents may result if the electrical connection is faulty!
ª Electrical connection may only be performed by competent personnel.
7.1Setting the switched-current reduction
With magnet activation, this function enables the reduction of switch-on and
switch-off peaks by splitting into up to 4 groups.
DANGER
Risk of death by electric shock!
ª Interrupt the voltage supply to the Safety Locking Device.
ª Unscrew the housing cover.
ª Remove the two screws on the black protective cover of the electromagnet.
ª Remove the protective cover.
ª Use an appropriate tool to set the DIP swi tc hes of the Safe ty Loc k ing Dev ic es
to different combinations (for more than 4 Safety Locking Devices, split uniformly).
ª Mount the black protective cover and screw down with 0.8 Nm.
ª Tighten the housing cover with 0.7–0.9 Nm.
• temperature stability of the cable insulation material must be greater than
the maximum temperature of the housing (see chapter 14)
• cable gland with appropriate protection rating
• maximum current load is observed (see chapter 14)
Figure 7.1: Contact block 2NC + 1NO (L100-P3xxx)
Electrical connection
Figure 7.2: Contact block 2NC + 1NC (L100-P4xxx)
DANGER
Risk of death by electric shock!
ª Interrupt the voltage supply to the Safety Locking Device.
ª Unscrew the housing cover.
ª Connect the electromagnet via terminals A1 and A2.
ª Connect the contact block according to the appli cation-spec ific circu it diagram .
L100 Safety Locking Devices are maintenance free. Nevertheless, they must be
replaced after maximum 800,000 switching cycles.
ays replace the entire Safety Locking Device including actuator.
ª Alw
ª For the testing intervals, observe nationally applicable regulations.
ª Document all tests in a comprehensible manner.
9.1To be performed prior to the initial start-up by competent personnel
ª Check whether the Safety Locking Device is operat ed according to its specifie d
environmental conditions (see chapter 14).
ª Test to ensure proper mechanical and electrical function (see chapter 9.2).
9.2To be performed periodically by competent personnel
Mechanical function
ª Stop the dangerous state and open the protective device.
ª Check that the components are securely fastened.
ª Test the cable entry for leaks.
ª Check Safety Locking Device and actuator for damage, dep osits , defor matio n
and wear.
ª If present, test auxiliary release.
ª Test several times whether the actuator can be easily moved into the Safety
Locking Device.
Electrical function
WARNING
Severe accidents may result if tests are not performed properly!
ª Make certain that there are no persons in the danger zone.
ª Stop the dangerous state and open the protective device.
ª Make certain that the machine cannot be s tarted whi le the pr otecti ve dev ice is
open.
ª Close the protective device and start the machine.
24L100Leuze electronic
ª Make certain that the protective device cannot be opened until after the
machine has been shut down and the Safety Locking Device has been
released.
ª Make certain that the dangerous state ends before the protective device can
be opened.
9.3To be performed daily by the operating personnel
WARNING
Severe accidents may result if tests are not performed properly!
ª Make certain that there are no persons in the danger zone.
ª Stop the dangerous state and open the protective device.
ª Check the Safety Locking Device and actuator for damage or tampering.
ª Make certain that the machine cannot be s tarted whi le the pr otecti ve dev ice is
open.
ª Close the protective device and start the machine.
ª Make certain that the protective device cannot be opened until after the
machine has been shut down and the Safety Locking Device has been
released.
Approach actuation directions1 x above, 4 x side (90°)
Approach speedmin. 1 mm/s, max. 0.5 m/s
Actuation force (pull-out)30 N
Actuation path, min. with forced separation 10 mm
Mechanical life time in accordance with
Number of cycles before dangerous failure
(B10d) according to EN 61810-2
Usage category according to EN 60947-5-1
Maximum load when using 5-pin cables:
Maximum load when using 8-pin cables:
Dimensions (dimensional drawings)see chapter 3
5,000,000
AC 15 (Ue / Ie):
250 V / 6 A
400 V / 4 A
500 V / 1 A
DC 13 (Ue / Ie):
24 V / 6 A
125 V / 1.1 A
250 V / 0.4 A
24 V / 4 A(see chapter 13)
24 V / 2 A(see chapter 13)
Table 14.2: Safety
Protection ratingIP 66
Contact protectionprotective insulation O
Recoil tolerance4.5 mm
Interlocking forcemax. 1100 N
Contact allocationL100-P3xxx:
magnet: 1NC + 1NO, actuator: 1NC
L100-P4xxx:
magnet: 2NC, actuator: 1NC
Contact materialsilver alloy
Switching principleslow-action contact
Opening of contactpositive-forced
Rated insulation voltage400 V AC
Conventional thermal currentmax. 10 A
Short-circuit protection according to
IEC 60269-1
Magnet operating voltage and tolerance24 V DC (–10 % to +25 %)