Leantechnik SHB Series User manual

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Operating instructions
Stepless holding brake (SHB)
Issue date 2017-09
© LEANTECHNIK AG
Sizes 5.0 - 5.3
Safety brake for profile rail guides

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Contents
Contents
1 General information
1.1 Denitions of terms 4
2 Safety
2.1 Safety and information symbols 5
2.2 General information 5
2.2.1 Personnel requirements 5
2.3 Correct use 6
2.4 Handling 6
2.5 Required protective measures by the user 6
2.6 Dimensioning of further machine elements 6
3. Legal provisions
3.1 The following standards, guidelines and regulations have been applied 7
3.2 Liability 7
3.3 Warranty 7
3.4 Notes 7
4 Product description
4.1 Scope of delivery / delivery condition 8
4.2 Function 8
5 Technical data
5.1 Notes 9
5.1.1 Conditions of use 9
5.1.2 Ambient temperature 9
5.1.3 Protection class 9
5.1.4 Noise emissions 9
5.1.5 Installation location 9
5.1.6 Prerequisite for use of the product 9
5.1.7 Technical data 10
6 Correct use
6.1 Instructions for use 14
6.2 Limitations 14
6.3 Reasonably foreseeable misuse 14
6.4 Duration of use 14
6.5 Brake design 15
6.5.1 Calculation example (dynamic braking) 15
6.5.2 Switching times 16

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Contents
7 Storage
7.1 Storage of brakes 17
8 Installation
8.1 Installation conditions 18
8.1.1 General 18
8.1.2 Prole rail 18
8.1.3 Control 19
8.2 Installation 20
8.2.1 Prerequisite 20
8.2.2 Preparation 20
8.2.3 Installation process 20
9 Switching condition monitoring 21
10 Commissioning
10.1 Brake test (before commissioning) 22
10.2 Brake test (static) 22
10.2.1 (Static) brake test 22
10.3 Brake test (during operation) 22
10.3.1 Regular function check (static) 22
11 Maintenance / Inspection / Switching frequency
11.1 Switching frequency 23
11.2 Inspection 23
11.3 Maintenance 23
11.4 Cleaning 24
12 Disassembly 25
13 Disposal 26
14 Malfunctions 27
Contents

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1 General information
Please read and follow the operating instructions carefully! Non-observance may lead to malfunctions or
failure of the brake and associated damage. These operating instructions are an integral part of the brake
delivery. Always keep the operating instructions easily accessible near the brake.
1.1 Definitions of terms
Term Meaning
Stepless holding brake (SHB) Pneumatically actuated spring-applied brakes as a
component for holding and delaying
moving machine parts.
Rated holding force F Is the theoretical holding force assigned to
the designation. The nominal holding force lies within
the specied nominal holding force tolerances.
Load mass Designation for the weight that the brake
must hold.

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2 Safety
2 Safety
2.1 Safety and information symbols
2.2 General information
Brakes can also pose other hazards, e.g:
Hand injuries
Danger of retraction
Serious personal injury and damage to property can occur:
• If the brake is used improperly.
• If the brake has been changed or modied.
• If the relevant STANDARDS of safety or
installation conditions are not observed.
2.2.1 Personnel requirements
To avoid personal injury and damage to property only quali-
ed and trained persons are allowed to work on the compo-
nents. They must be sufciently familiar with their design, trans-
port, installation, commissioning, maintenance and disposal
in accordance with the relevant standards and regulations.
• Technical data and specications (type plate and
documentation) must be strictly adhered to.
General information:
General information:
During the necessary risk assessment when the
machine or plant is being designed, the hazards must be as-
sessed in accordance with Machinery Directive 2006/42/
EC and must be eliminated by means of suitable protective
measures.
Brakes for safety-related applications must be used in a
single or redundant manner according to the required category
to achieve the required performance
level (PLr) as dened by EN ISO 13849. This is
invariably the task of the system manufacturer.
Symbol Signal word Meaning
DANGER Indicates an imminent danger.
If it is not avoided, death or serious injury will result.
WARNING Indicates a potentially hazardous situation.
Failure to avoid this could result in death or serious injury.
CAUTION Indicates a hazardous situation. Failure to avoid this could result in light
or minor injuries.
!
!
!
i
Before installation and commissioning, the in-
stallation and operating instructions must be
read carefully and the safety instructions must
be observed, as incorrect handling can lead to
personal injury and damage to property. The
pneumatic brakes have been developed and
manufactured according to the rules of technol-
ogy known at the time and are generally con-
sidered safe to operate at the time of delivery
! !
i
ATTENTION Possible damage to property may result.
Note Indicates application tips and other particularly useful
information. It is not a signal word for a dangerous or

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2 Safety
2.3 Correct use
Stepless holding brakes (SHB) are intended for use
in machines and systems and may only be used for
the purpose ordered and conrmed. Use outside the
respective technical specications is considered incor-
rect.
Stepless holding brakes (SHB) are used for holding and
decelerating on prole rails.
Stepless holding brakes (SHB) prevent unintentional fall-
ing or crashing of gravity-loaded axles.
• Not suitable for use in potentially explosive atmos-
pheres
2.4 Handling
Before mounting, the brake must be checked for proper condi-
tion (visual inspection). Not considered to be proper:
• External damage
• Outer oiling
• External soiling
The function of the brake must be checked both after
installation and after prolonged periods of system inactivity.
2.5 Required protective measures by the user
• Covering of moving parts to protect against
crushing and entrapment.
• Provision of an additional corrosion protection measure if the
brake is used in extreme environmental conditions or
outdoors with direct weather inuences.
2.6 Dimensioning of further machine elements
iThe effect of the maximum and minimum brak-
ing force on the other machine components must
be taken into account for sufcient dimension-
ing. The stepless holding brake (SHB) observes
a maximum braking force of 2.5 x nominal hold-
ing force and a minimum braking force of 1
x nominal holding force of the brake. If further
brakes are arranged behind the stepless holding
brake (SHB), the load is added if the braking
times of the different brakes overlap.

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3. Legal provisions
3. Legal provisions
3.1 The following standards, guidelines and regu-
lations have been applied
(also to be observed during installation and operation)
EN ISO 4414
General rules and safety requirements for pneumatic systems and
their components
EN ISO 12100
Safety of machinery - General principles of design -
Risk assessment and risk reduction
EN ISO 13849-1
Safety of machinery - Safety-related parts of control systems
3.2 Liability
The information, notes and technical data given in the documen-
tation were up to date at the time of printing. Claims relating to
brakes that have already been delivered cannot be asserted on
the basis of this. Liability for damages and operational distur-
bances are not accepted in the event of:
• Failure to observe the installation and operating instructions,
• Improper use of the brakes,
• Unauthorised modication of the brakes,
• Improper work on the brakes,
• Handling or operating errors.
3.4 Notes
3.3 Warranty
• The warranty conditions correspond to the conditions
of sale and purchase of Leantechnik AG
(www.leantechnik.com)
• Defects must be reported to Leantechnik AG
immediately after discovery.
Note on the Machinery Directive (2006/42/EC) The product is a component for installation in ma-
chinery in accordance with Machinery Directive 2006/42/EC. In conjunction with other elements, the
brakes can full safety-related applications. The type and scope of the measures necessary are derived
from the risk analysis of the machine. The brake is then part of the machine and the machine manufacturer
assesses the conformity of the safety device with the directive.
The commissioning of the product is prohibited until it has been ensured that the machine complies with
the requirements of the directive.
Note on the ATEX Directive
The product is not suitable for use in potentially explosive atmospheres without this conformity assessment.
To use this product in potentially explosive atmospheres, classication and labelling according to Directive
2014/34/EU must be carried out.
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4 Product description
4 Product description
4.1 Scope of delivery / delivery condition
• The stepless holding brake (SHB) is assembled ready for
installation.
• The stepless holding brake (SHB) is
set to the specied nominal holding force.
• Observe the type plate
• The scope of delivery and delivery condition must be
conrmed immediately after receipt of the shipment.
LEANTECHNIK does not assume any warranty for
defect claims asserted after this time.
Report transport damage to the supplier immediately.
Incompleteness of the delivery and recognisable defects
must be reported immediately at the manufacturer's works.
4.2 Function
The spring-loaded, closed and pneumatically opened
stepless holding brake (SHB) clamps a prole rail in a manner
that is innitely variable and free of play.
The spring-loaded system ensures the fail-safe principle
with the stepless holding brake (SHB) working as a safety brake.
• By venting the stepless holding brake (SHB) with the
required operating pressure, the clamping element
of the brake is pressed against the cup spring.
The prole rail can be moved (Fig. 1).
• By venting the stepless holding brake (SHB), the
cup spring acts on the brake's clamping element.
The prole rail is clamped (Fig. 2).
The maximum permissible sliding speed is 2 m/s.
Higher speeds on request
Fig. 1 Sliding prole rail under the inuence of pressure
Fig. 2 Clamped prole rail with pressure relief
ATTENTION Brake may be damaged Removing
the transport lock (K) when the brake is depressur-
ised will result in damage. Only remove the trans-
port lock (K) (red screw head) when pressurised.
Caution Note the brake's own weight The brake
may fall during lifting / transporting. Crushing
and impacts may result.
Note!
The maximum clamping force can only be
achieved when the brake is depressurised.
Note!
If the operating pressure is too low, the
brake cannot be properly pressurised
(opened).
i
i
!
!

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5 Technical data
5.1 Notes
5.1.1 Conditions of use
• Mounting and connection dimensions at the place of use
must be matched to the size of the brake.
• The use of the brake under extreme environmental
conditions or outdoors with direct contact with
weather inuences is not permitted.
• The surfaces of the exterior components are provided
with a phosphate coating in the factory, which ensures a
corrosion protection base.
• The provision of the required operating pressure
must be guaranteed.
5.1.2 Ambient temperature
-10 °C to +60 °C
The technical data refers to the
specied temperature range.
5.1.3 Protection class
(mechanical) IP44: When installed, protected against sol-
id foreign bodies with a diameter of >1 mm and against
splashing water on all sides.
5.1.4 Noise emissions
Generally no noise emissions
5.1.5 Installation location
The stepless holding brake (SHB) can be used in any
installation position.
5.1.6 Requirements for the use of the product
Compare the limit values in these
operating instructions with the current application, e.g.
• Pressure
• Clamping forces / braking forces
• Braking distances
• Masses
• Temperatures etc.
• Pressure medium
The indicated values are guideline values which have
been determined in test facilities. The suitability for
the intended application must be determined, if nec-
essary, by independent testing. When designing the
brakes, the installation situations, permissible friction
work and braking distances as well as ambient con-
ditions must be carefully checked and coordinated.
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5 Technical data

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5.1.7 SHB1 short version
H
I J
N
O
P
Q
R
U
Anbauflansch
kundenseitig
3) Mindesthaltekraft bei drucklosem Zustand der Bremse und bei trockener oder mineralöl-benetzter Profilschiene
4) Bei einer Schalthäufigkeit >200.000 muss mit einer Reduzierung der Nennhaltekraft von 20% gerechnet werden
C
H
G J
Transportsicherung
(rote Schraubenkopf)
nur im druckbeaufschlagten Zustand entfernen!
Bremse nur mit Führungsschiene schliessen!
Transportation lock
(red bot head)
remove only when pressurised!
close brake only with guide rail!
A
B
D
E
F
M
Schaltzustandskontrolle
switching condition monitoring
Kabellänge / cable length 4.8m
L
K
Position für Transportsicherung
position of transportation lock
H
I J
S
T
ACHTUNG!
Bremse nie ohne Führungsschiene betreiben.
Das Betätigen der Bremse ohne Führungs-
schiene führt zu Beschädigung
ATTENTION!
Never operate the brake without
a guide rail. Activation of the brake
without a guide rail will cause damage
SHB1
kurze Ausführung
Einheit 5.1 5.3
501 390 501 392
A mm 130 190
B mm 120 170
C mm 59 86,7
D mm 98 152
E mm 96 134
F mm M16 28 M24 43
G mm 30 37
H mm 20,7 32,7
I mm 26 40
J "
G 1/8
9,5
Anschluss Ma=12Nm
K mm M8 M10
L mm 79,4 112,4
Induktiver Sensor Fa.Balluff M mm BES516-3005-G-E4-C-PU-05
N mm 25 25
O mm 62 +-/0,1 92,2 +/-0,1
P mm 29,5 42,7
Q mm 1 1
R mm 3 5,5
S mm 15 29
T mm 27 48
Erforderliche min. Dicke
des kundenseitigen
Anbauflansches ( Stahl )
U mm 15 35
Nennhaltekraft
3)4)
bei 6 bar
N 3000 6000
Nennhaltekraft
3)4)
bei 20 bar unter
Verwendung eines
Druckbooster
N 7500 15000
Öffnungsdruck
min.
bar
6 bzw. 20
max. 8 bzw. 28
Steifigkeit
N/
μ
m
490 1000
max. Gleitgeschwindigkeit m/s 2
Umgebungstemperatur °C -10 bis +60
Luftverbrauch pro
Schaltung in Normliter bei
Öffnungsdruck
bei 6 bar
NL
0,135
bei 20 bar 0,448
Druckmedium
Druckluft mit Druckluftqualität
nach ISO 8573-1 Klasse 4
Gewicht kg 4,95 15,67
5 Technical data