Leuze L10, L10-P2C1-M20-SB20, L10-M2C1-M20-SB20 Safe Implementation And Operation

L10

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Safety Locking Device

GB 2008/12 607300

We reserve the right to

make technical changes

SAFE IMPLEMENTATION AND OPERATION

Original operating instructions

1 About this document................................... ........................................ .................5

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1.1 Other applicable documents ................................................................................................ 5

1.2 Used symbols and signal words ..........................................................................................6

2 Safety...................................................................................................................7

2.1 Proper use ...........................................................................................................................8

2.2 Competent personnel...........................................................................................................9

2.3 Responsibility for safety.......................................................................................................9

2.4 Exemption of liability ..........................................................................................................10

3 Device description .............................................................................................11

4 Functions...........................................................................................................14

5 Applications .......................................................................................................14

6 Mounting............................................................................................................15

6.1 Adjusting the deflection head............................................................................................. 15

6.2 Mounting the Safety Locking Device..................................................................................16

6.3 Mounting the actuator ................................................... .....................................................17

7 Electrical connection.......................................................................................... 20

7.1 Connecting the contact block............................................................................................. 20

8 Setting the device into service........................................................................... 22

9 Testing...............................................................................................................23

9.1 To be performed prior to the initial start-up by competent personnel ................................ 23

9.2 To be performed periodically by competent personnel .....................................................23

9.3 To be performed daily by the operating personnel ............................................................24

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10 Cleaning.............................................................................................................24

11 Disposing...........................................................................................................25

12 Service and support.................................................................................... ....... 25

13 Accessories ....................................................................................................... 25

14 Technical data ................................................................................................... 26

15 EC Declaration of Conformity............................................................................ 29

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1 About this document

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1.1 Other applicable documents

The information on the L10 Safety Locking Device is divided into two documents.
Document "Application information" contains only the most important safety
notices.

ª For the safe implementation, testing and operation, download document

"Safe implementation and operation of the L10" from
http://www.leuze.com/l10 or request it from [e-mail] or
tel. [phone].

Table 1.1: Documents for the L10 Safety Locking Device

Purpose and target group Title Source

Detailed information for all
users

Safe implementation and
operation (this document)

About this document

On the Internet, download from:
http://www.leuze.com/l10

Basic information for
technicians and machine
operators

Application information Print document part no. 607242

included in the delivery contents
of the product

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About this document

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1.2 Used symbols and signal words

Table 1.2: Warning symbols and signal words

Symbol for dangers

NOTICE Signal word for property damage

Indicates dangers that may result in property damage if the measures for
danger avoidance are not followed.

CAUTION Signal word for minor injury

Indicates dangers that may result in minor injury if the measures for dan­ger avoidance are not followed.

WARNING Signal word for severe injury

Indicates dangers that may result in severe or fatal injury if the measures
for danger avoidance are not followed.

DANGER Signal word for life-threatening danger

Indicates dangers that will result in severe or fatal injury if the measures
for danger avoidance are not followed.

Table 1.3: Other symbols

Symbol for tips
Text passages with this symbol provide you with further information.

ª

Symbols for action steps
Text passages with this symbol instruct you to perform actions.

2Safety

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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 mounting, operating and testing, document "Safe implemen­tation and operation of the L10" as well as all applicable national and international
standards, regulations, rules and directives must be observed (e.g. machinery
directive, low-voltage directive, work-equipment directive, safety regulations,
accident-prevention regulations, EN 1088, EN ISO 13849-1, EN 60204-1,
EN 954-1). Observe and print out relevant and supplied documents and distribute
to the affected personnel.

ª Before beginning work with the Safety Locking Device, completely read and

understand the documents applicable to the respective task.

The following standards apply for the risk evaluation at the protective device pr ior
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 and EN 954-1 is dependent on the used contact block and
wiring.

In particular, the following national and international legal regulations apply for the
start-up, technical inspections and work with Safety Locking Devices:

• Machinery directive 2006/42/EC

• Low voltage directive 2006/95/EC

• Use of work equipment directive 89/655 EEC

• Safety regulations

• Accident-prevention regulations and safety rules

Safety

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Safety

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2.1 Proper use

To ensure proper personnel protection, the Safety Locking Device must be
mounted, connected and started-up by trained personnel. 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.

The rules and regulations for protection and safety at work and the recognised
safety-related rules and regulations must be observed. These include:

• EN 1088, Interlocking devices associated with guards

• EN ISO 13849-1, Safety-related parts of control systems

• EN 60204-1, Electrical equipment of machines

L10 Safety Locking Devices must be connected in such a way that a dan gerous
state can only be activated while the protective device is closed and so that the
dangerous state has ended before the protective device can be opened. They
must not be used if the point of operation can be accessed during the lag time
before the dangerous state has ended.

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

• manual unlocking of the locking device while the machine is running triggers
a STOP command; the dangerous state is ended before the protective
device can be opened

Furthermore, the L10 Safety Locking Device must not be used under the following
conditions:

• lag time of the dangerous state is greater than the minimum time delay of
the manual actuator release

• high concentration of dust particles in the surrounding area

• rapidly changing ambient temperature (leads to condensation)

• in the event of strong physical shocks

• in explosive or easily flammable atmospheres

• the mounting locations are not sufficiently stable

• 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:

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ª Observe the permissible environmental conditions for storage and operation

(see chapter 14 "Technical data").

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, knurled nut 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.

2.2 Competent pe rsonn e l

Prerequisites for competent personnel:

• suitable technical training

• knows the rules and regulations for occupational safety, safety at work and
safety technology and can assess the safety of the machine

• knows the instructions for the Safety Locking Device and the machine

• was instructed by the responsible individuals on the mounting and operation
of the machine and of the Safety Locking Device

Safety

2.3 Responsibility for safety

Manufacturer and operator of the machine must ensure that the mach ine and
implemented Safety Locking Device function properly and that all affected
persons 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 constructi on

• safe implementation of the Safety Locking Device

• imparting all relevant inf ormation to the operator

• adhering to all regulations and directives for the safe starting-up of the
machine

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Safety

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The operator of the machine is responsible for:

• instructing the operating personnel

• maintaining the safe operation of the machine

• adhering to all regulations and directives for occupational safety and safety
at work

• regular testing by competent personnel

2.4 Exemption 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

• proper function is not tested (see chapter 9 "Testing")

• modifications are made to the Safety Locking Device

• the manual delay time is not allowed to elapse (e.g. due to improper opera­tion, use of auxiliary equipment or tampering)

3 Device description

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The Safety Locking Device of the L10 series is an electro-me chanical switching
device in a housing made of metal or glass-fibre-reinforced and non-combustible
plastic; the device satisfies protection rating IP 67. By means of the funnel-shaped
insertion opening, the actuator self-centres, even if the door is slightly misad­justed. The locking/unlocking delay is manually adjusted by means of a knurled
nut.

1

Device description

2

3

4

5

6

1 Deflection head
2 Insertion opening for actuator
3 Dust cover
4 Knurled nut for locking/unlocking (delaysee chapter 14 "Technical data")
5 Housing cover
6 Name plate (connection data, production code and year of manufacture)

Table 3.1: L10 Safety Locking Devices

Article Part No. Description

L10-P2C1-M20-SB20 63000 550 Normal duty, plastic, time delay up to 20 s
L10-M2C1-M20-SB20 63000 551 Heavy duty, metal, time delay up to 20 s

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Device description

15

38 11 13

30

40

32

12.6 13

25.6

60 48.5 8

5.3

30

6.5

123

8

5.3x7.3

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Figure 3.1: Dimensions L10-P2C1-M20-SB20 in mm

8

12.6

8

32

13

122.5

5.2

25.6

60 48.5

5.2x7.2

Figure 3.2: Dimensions L10-M2C1-M20-SB20 in mm

30

6

40

16

30

39

10 13

Device description

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The actuation directions of the deflection head and knurled nut can be adjusted in
90° increments. By means of 5 possible approach directions and a selection of
different actuators, the Safety Locking Device can be mounted in any position.

Figure 3.3: Approach directions

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Functions

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4 Functions

The positive-opening contacts close if:

• the actuator is moved in

• the locking device is locked

The dangerous state can only be activated via the safety swi tching device while
the safety contacts are closed. During the first clockwise turns of the knurled nut,
the contacts are opened and a STOP signal is transmitted to the downstream
safety switching device. The actuator is not released until the knurled nut has
been turned to the right limit stop and the locking device has unlocked. During this
manual time delay (delay time see chapter 14 " Technical data"), the dangerous
state must be stopped in order for the protective device to be opened safely. The
Safety Locking Device can only be locked if the actuator is moved in.

1234

Figure 4.1: Example for the manual delay

1 Machine is running, locking device is locked
2 Machine coasts as the knurled nut is turned
3 Machine has stopped, locking device is unlocked
4 Protective device can be opened

5 Applications

The manual locking/unlocking function makes the L10 Safety Locking Devi ce
suitable for systems with protective devices that are used only occasionally or
that are located relatively far away on which no magnet activation is provided.

The Safety Locking Device is suitable for e.g. the following protective devices:

• turning or swivelling moveable guards

• laterally moveable protective gratings or sliding gates

• seldom used maintenance doors or covers

6 Mounting

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WARNING

Serious 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 materials penetrating the enclo-

sure (environmental conditions see chapter 14 "Technical data").

ª Test to ensure proper function.

6.1 Adjusting the deflection head

ª Loosen the 2 screws on the deflection head.

Mounting

ª If necessary, loosen the 4 screws on the locking/unlocking unit.

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Mounting

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ª Turn the deflection head and the locking/unlocking unit in the desired

ª If necessary, retighten the 4 screws on the locking/unlocking unit with

ª Replace the 2 screws on the deflection head with the supplied safety screws

ª Close unused opening with the dust cover.

directions.

0.8–1.2Nm.

and tighten with 0.8–1.2Nm.

6.2 Mounting the Safety Locking Device

Prerequisites for mounting:

• deflection head has been set

• fully assembled

• the 2 screws on the deflection head have been replaced with the supplied
safety screws

ª Select the mounting location so that the following conditions are satisfied:

• Safety Locking Device and actuator can be well matched to one another and
permanently mounted

• knurled nut is easily accessible to the operating personnel

ª Position washers and screw down Safety Locking Device with 2–3Nm.

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6.3 Mounting the actuator

NOTICE

The Safety Locking Device may be damaged if mounted improperly!

ª Use separate mechanical limit stop for the moving part of the protective

device.

ª Align actuator so that it does not hit or rub against the edges of the insertion

opening.

Mounting

Prerequisites for proper function:

• actuator is not deformed or damaged

• actuator is appropriate for the Safety Locking Device
Proper function is ensured only with original accessories (see chapter 13
"Accessories").

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Mounting

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ª Align actuator.

Wrong Correct

Play for the actuator in the closed state: 0.5–5mm.

0,5 ... 5 mm

Mounting

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ª Secure actuator with rivets or tamperproof screws so that it cannot be

detached.

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Electrical connection

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7 Electrical connection

WARNING

Serious accidents may result if the electrical connection is faulty!

ª Electrical connection may only be performed by competent personnel.

7.1 Connecting the contact block

Prerequisites:

• temperature stability of the cable insulation material must be greater than
the maximum temperature of the housing (see chapter 14 "Technical data")

• cable gland with appropriate protection rating

• maximum current load is observed (see chapter 14 "Technical data")

11

222112

11

222112

Figure 7.1: Contact block 2 NC (L10-P2C1-M20-SB20, L10-M2C1-M20-SB20)

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 contact block according to the circuit diagram.

Electrical connection

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+24V +24V

-K3

-K4

211211 22

1

1

1

2

2

2

S22 S12 S31 S33 S34 S35

A1

-A2

1 AOPD+

IV-0

2 AOPD+

+24V

MSI-SR4

2 AOPD-

-S1

RES-I

RES-0

L+ L+

1

1

2

2

13 23 41

L+

1

2

33

L10-P2C1-M20-SB20

0V 0V

PE PE

0V

A2

Var. B

-K3

Var. A

-K4

-K4-K3

14 24 42

A1

-K3

A2

-K4

L- L-

34

**

x1

**

A1

A2

x2

L-

Figure 7.2: Connection example L10-P2C1-M20-SB20 and

L10-M2C1-M20-SB20

ª Tighten cable terminal screws with 0.6–0.8Nm.

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Setting the device into service

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ª Tighten the housing cover with 0.7–0.9Nm.

8 Setting the device into service

WARNING

Serious accidents may result if the Safety Locking Device is not used
properly!

ª Before unlocking the Safety Locking Device and opening the protective

device, wait until the dangerous state has ended.

Prerequisites:

• Safety Locking Device is mounted and connected according to these
instructions

• operating personnel have been trained in the correct use

ª Test the function of the Safety Locking Device (see chapter 9 "Testing").
The Safety Locking Device is then ready for use.

Testing

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9 Testing

L10 Safety Locking Devices are maintenance free. Nevertheless, they must be
replaced after maximum 500,000 switching cycles.

ª Always replace the entire Safety Locking Device including actuator.
ª For the testing intervals, observe nationally applicable regulations.
ª Document all tests in a comprehensible manner.

9.1 T o be perf ormed prior to th e initial start-up by compete nt person nel

ª Check whether the Safety Locking Device is operated according to its specified

environmental conditions (see chapter 14 "Technical data").

ª Test to ensure proper mechanical and electrical function (see chapter 9.2).

9.2 To 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 the Safety Locking Device, knurled nut and actuator for damage, depos-

its, deformation and wear.

ª Test the locking/unlocking function after actuating the knurled nut.
ª Test several times whether the actuator can be easily moved into the Safe ty

Locking Device.

Electrical function

WARNING

Severe injuries 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 started while the protective device is

open.

ª Close the protective device, turn the knurled nut to the left limit stop and start

the machine.

ª Make certain that the protective device cannot be opened.

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Cleaning

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ª Test whether the machine stops as soon as the knurled nut is turned clockwise.
ª Make certain that the protective device does not open until the knurled nut has

been turned to the right limit stop.

ª Make certain that the dangerous state ends before the protective device can

be opened.

9.3 To be performed daily by the operating personnel

WARNING

Severe injuries 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 started while the protective device is

open.

ª Close the protective device and start the machine.
ª Test whether the dangerous state ends before the protective device can be

opened.

10 Cleaning

There must be no soiling (e.g. shavings and dust) present, especially in the deflec­tion head of the Safety Locking Device.

Prerequisites for cleaning:

• protective device is opened and machine is switched off

• voltage supply for the Safety Locking Device is interrupted

ª Periodically clean the Safety Locking Device while the protective device is

opened (e.g. with vacuum cleaner).

11 Disposing

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ª The nationally valid regulations for electro-mechanical components are to be

observed when disposing.

12 Service and support

Contact data:

Leuze electronic GmbH + Co. KG
Liebigstraße 4
D-82256 Fürstenfeldbruck
Phone: [phone]

http://www.leuze.com
E-mail: [e-mail]

13 Accessories

Table 13.1: Actuators of the AC-AH series for the L10 Safety Locking Device

Article Part No. Description

AC-AH-S 63000 720 Straight

Disposing

AC-AH-A 63000 721 Angled
AC-AH-F4 63000 722 Straight, flexible, 4 directions
AC-AH-F2J2 63000 723 Straight, flexible, 2 directions, alignable 2 directions
AC-AH-F1J2 63000 724 Straight, flexible, 1 direction, alignable 2 directions
AC-AH-F4J2-TK 63000 725 Straight, flexible, 4 directions, alignable 2 directions

turning head

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Technical data

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14 Te chnical data

Table 14.1: General

Switch type Interlock device with locking according to

EN 1088

Actuator, external AC-AHxx series: straight, angled, resilient,

Lock type mechanical
Lock actuation mechanical, manual unlocking
Approach actuation directions 1 x above, 4 x side (90°)
Approach speed min. 1mm/s, max. 0.5m/s
Actuation force (extraction) 10N
Mechanical life time in accordance with

IEC 60947-5-1
Actuation frequency according to

IEC 60947-5-1
Life time according to EN ISO 13849-1 on request
Number of cycles until the dangerous failure

(B10d) in accordance with EN 61810-2
with DC1 (ohmic load)
with AC1 (ohmic load)
with DC13 (inductive load)
with AC15 (inductive load)
low load (20% rated load)

Usage category according to EN 60947-5-1 AC 15 (Ue / Ie):

alignable

6

0.5 x 10

max. 360 per hour

on request

250V / 6A
400V / 4A
500V / 1A

switching cycles

DC 13 (Ue / Ie):
24V / 6A
125V / 1.1A
250V / 0.4A

Dimensions (dimensional drawings) see chapter 3 "Device description"

Table 14.2: Safety

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Protection rating IP 67

Technical data

Contact protection L10-P2C1-M20-SB20: protective insulation O

Recoil tolerance 4.5mm
Interlocking force

Manual delayed actuator release approx. 20 seconds
Contact allocation 2 NC
Contact material silver alloy
Switching principle slow-action contact
Opening of contact positive-forced
Rated insulation voltage 500VAC, 600VDC
Conventional thermal current max. 10A
Short-circuit protection according to

IEC 60269-1

L10-M2C1-M20-SB20: grounding

max. 1000N

10A, 500V, type aM

Table 14.3: Housing

Housing material L10-P2C1-M20-SB20:

fiberglass-reinforced, thermo-plastic plastic,
self-extinguishing

L10-M2C1-M20-SB20:
metal

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Table 14.4: Connection

Number of cable entries 1
Type of cable entry M20 x 1.5

2

Conductor cross-section (stranded) 1 x 0.5mm

to 2 x 2.5mm

2

Technical data

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Table 14.5: Environment

Temperature range, operation –25 ... +80°C
Degree of contamination, external,

according to EN 60947-1

3

15 EC Declaration of Conformity

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Leuze electronic GmbH + Co. KG
Liebigstraße 4
D-82256 Fürstenfeldbruck

We hereby declare that the L10 Safety Locking Device (see name plate for part
no.) in the form in which it is marketed by us conforms with the relevant safety and
health requirements of the listed EC directives
the listed standards

Fürstenfeldbruck, 15 September 2008

1

were used in its design and construction.

EC Declaration of Conformity

1

(including all changes) and that

ppa. Dr. Holger Lehmitz
Director of the Safety Systems Division

1. You can download the entire EC Declaration of Conformity as a PDF from:
http://www.leuze.com/l10

ppa. Werner Lehner
Director of Product Management
Safety Systems Division

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