Page 1
ETH ATEX
Electromechanical Automation
We reserve the right to make technical changes. 27.11.13 09:57 192-550004N2 ETH ATEX November 2013
The data correspond to the current status at the time of printing.
ETH intended use in accordance with ATEX
192-550004N2 ETH ATEX
November 2013
ETH - Electro Cylinder with ATEX
Parker High Force Electro Thrust
Cylinder
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Introduction
ETH ATEX
2 192-550004N2 ETH ATEX November 2013
Italy:
____________________________
Produktionsstätte:
Parker Hannifin Manufacturing Germany GmbH & Co. KG
Electromechanical Automation Europe [EME]
Robert-Bosch-Strasse 22
77656 Offenburg (Germany)
Tel.: + 49 (0781) 509-0
Fax: + 49 (0781) 509-98176
Internet: www.parker.com/eme http://www.parker.com/eme
E-mail: sales.automation@parker.com mailto:EM-Motion@parker.com
Parker Hannifin GmbH - Sitz: Bielefeld HRB 35489
Geschäftsführung: Ellen Raahede Secher, Dr.-Ing. Gerd Scheffel, Günter Schrank, Kees Veraart - Vorsitzender des Aufsichtsrates:
Hansgeorg Greuner
Parker Hannifin Manufacturing Srl • SSD SBC • Electromechanical Automation •
Via Gounod, 1
I-20092 Cinisello Balsamo (MI), Italy
Tel.: +39 (0)2 361081 • Fax: +39 (0)2 36108400
E-mail: sales.automation@parker.com mailto:sales.sbc@parker.com •
Internet: www.parker.com/eme http://www.parker.com/eme
Worldwide sales
http://divapps.parker.com/divapps/eme/EME/Contact_sites/Sales%20Channel
_Parker-EME.pdf
Nonwarranty clause
We checked the contents of this publication for compliance with the associated
hard and software. We can, however, not exclude discrepancies and do therefore
not accept any liability for the exact compliance. The information in this publication
is regularly checked, necessary corrections will be part of the subsequent
publications.
Further information:
Our product on the internet: http://www.parker.com/eme/eth
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192-550004N2 ETH ATEX November 2013 3
Inhalt
1. Introduction ............................................................................................. 4
1.1 Mounting explanation .............................................................................. 5
1.2 ATEX declaration of conformity ............................................................. 6
1.3 Introduction to ATEX ................................ ................................ ............... 7
1.3.1. Explosive atmospheres ..................................................................................... 7
1.3.2. Harmonized European ATEX Standard ........................................................... 7
1.3.3. Zone classification / device categories ........................................................... 8
1.3.4. Type of explosion protection............................................................................ 9
1.3.5. Explosion subgroup .......................................................................................... 9
1.3.6. Temperature classes ......................................................................................... 9
1.3.7. ATEX and machinery directive ......................................................................... 9
1.4 ATEX marking ........................................................................................ 10
1.5 Type specification plate ........................................................................ 10
1.6 Intended use ........................................................................................... 11
1.6.1. Applications not in accordance with the intended use ............................... 12
1.7 Operator’s obligations ........................................................................... 12
1.8 Safety instructions ................................................................................. 13
1.8.1. General hazards ............................................................................................... 13
1.8.2. Identifying Residual Dangers and Hazardous Areas ................................... 13
1.8.3. Working safely ................................................................................................. 13
1.8.4. Safety Instructions for the Company Using the System ............................. 14
1.8.5. Safety Instructions for Operating Personnel ................................................ 14
1.8.6. ATEX specific safety instructions .................................................................. 14
1.8.7. Product specific safety instructions .............................................................. 15
1.9 Terms of guarantee / warranty .............................................................. 16
1.10 Conditions of utilization ........................................................................ 17
2. Maintenance .......................................................................................... 18
2.1 Maintenance schedule ........................................................................... 18
2.2 Lubricating intervals and amount of lubricant for ATEX ETH electro
cylinders ................................................................................................. 19
2.2.1. Greasing via central lubrication port (standard) .......................................... 19
2.2.2. Relubrication via central lubrication port (option) ....................................... 20
2.3 Toothed belt ........................................................................................... 20
2.3.1. Check toothed belt .......................................................................................... 20
2.3.2. Toothed belt exchange .................................................................................... 20
3. Repair ..................................................................................................... 21
4. ETH ATEX - application data ................................................................ 22
5. Index ....................................................................................................... 24
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Introduction
ETH ATEX
4 192-550004N2 ETH ATEX November 2013
In this chapter you can read about:
Mounting explanation......................................................................................................... 5
ATEX declaration of conformity.......................................................................................... 6
Introduction to ATEX.......................................................................................................... 7
ATEX marking ................................................................................................................. 10
Type specification plate ................................................................................................... 10
Intended use .................................................................................................................... 11
Operator’s obligations ...................................................................................................... 12
Safety instructions ........................................................................................................... 13
Terms of guarantee / warranty ......................................................................................... 16
Conditions of utilization .................................................................................................... 17
1. Introduction
This paper is intended to verify in advance the intended use of the
ETH electro cylinder in explosive atmospheres and to define the ATEX
application data required for the temperature measurement in the
ATEX certification procedure.
The operating / mounting instructions must be taken into account and
applied when mounting, setting up and maintaining the device.
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192-550004N2 ETH ATEX November 2013 5
1.1 Mounting explanation
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Introduction
ETH ATEX
6 192-550004N2 ETH ATEX November 2013
1.2 ATEX declaration of conformity
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Introduction
192-550004N2 ETH ATEX November 2013 7
In this chapter you can read about:
Explosive atmospheres ...................................................................................................... 7
Harmonized European ATEX Standard ............................................................................. 7
Zone classification / device categories ............................................................................... 7
Type of explosion protection .............................................................................................. 9
Explosion subgroup ........................................................................................................... 9
Temperature classes ......................................................................................................... 9
ATEX and machinery directive ........................................................................................... 9
1.3 Introduction to ATEX
ATEX = “ATmosphère EXplosible”
Introduction to the European ATEX directive
1.3.1. Explosive atmospheres
Directive 94/9/EC defines an explosive atmosphere as a mixture of:
a) flammable substances - gases, vapors, mists or dusts
b) and air
c) under defined atmospheric conditions
d) in which, after ignition has occurred, combustion spreads to the entire unburned
mixture
(NOTE: dust may not burn entirely after ignition).
A “potentially explosive atmosphere” is an atmosphere which could become
explosive due to local and operational conditions. Devices concerned by directive
94/9/EC are defined as designed for the use in potentially explosive atmospheres.
1.3.2. Harmonized European ATEX Standard
The EU accepted two harmonized directives for health and safety.
Requirements for machinery and equipment
Directive 94/9/EC (ATEX 95a) defines the minimum safety requirements in EU
member states for products used in potentially explosive atmospheres.
Requirements for OEM / user
ATEX directive 99/92/EC (ATEX 137) sets out the minimum requirements for
improving the health and safety protection of workers potentially at risk from
explosive atmospheres with regard to workplace, working conditions and the
handling of products and materials. This directive classifies the workplace into
zones and defines criteria for categorizing the products within the zones.
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Introduction
ETH ATEX
8 192-550004N2 ETH ATEX November 2013
User
Suitable machinery and devices
Gas
zone
Dust
zone
Presence of potentially
explosive atmospheres
Equipment
Group *
Equipment
Category
Area of application
(not mining)
0
Permanently, often, for a
long period
approx. > 1000 h / year
II
1G
Gases, mist, vapor
20
II
1D
Dust
1
occasionally
approx. 10 ... 1000 h / year
II
2G
Gases, mist, vapor
21
II
2D
Dust
2
rarely, for a short period, in
the event of an error
approx. < 10 h / year
II
3G
Gases, mist, vapor
22
II
3D
Dust
1.3.3. Zone classification / device categories
The table below describes the zones of an installation, where potentially explosive
atmospheres may occur. The proprietor must analyze and assess the area, where
explosive gas/dust mixes may occur and, if necessary, subdivide them into
individual zones. This zone classification permits to select suitable machinery and
equipment which can be used in this area.
* Equipment for use in areas (except underground in mining) which might be
dangerous due to an explosive atmosphere.
Example:
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Type of explosion protection
Designation
Applied standard
Flameproof enclosure
d
EN 13463-3
Pressurized apparatus
p
EN 13463-7
Intrinsic safety
g
EN 13463-4
Restricted breathing
h
EN 13463-2
(except category 1)
Constructional safety
c
EN 13463-5
Ignition source monitoring
b
EN 13463-6
Liquid immersion
k
EN 13463-8
Explosion subgroup
Examples for gases
IIA
Propane, acetone, ammonia, gasoline, benzene,
diesel fuel, heavy fuel, methane, methanol, propane
IIB
Ethylene, ethyl alcohol, hydrogen sulphide
IIC
Hydrogen, carbon disulphide, acetylene
Class
Maximum permitted material surface temperature [°C]
T1
450
T2
300
T3
200
T4
135
T5
100
T6
85
1.3.4. Type of explosion protection
In addition to category and device class, which are the minimum required
information, the device or component designation gives additional information with
reference to the type of protection and explosion group for gases and mists.
The type of explosion protection defines which method or measures is/are used for
explosion protection in given equipment or individual components.
For non electric equipment, the following types of explosion protection are possible:
For Parker’s ETH electro cylinders, the constructional safety "c" method is applied.
1.3.5. Explosion subgroup
The explosion group is an indicator for the inflammability (explosive potential) of
gases (explosive atmospheres). The requirements for the equipment increase from
IIA to IIC.
Gas explosion subgroups of the Parker ETH electro cylinder (see on page 10).
1.3.6. Temperature classes
Classification of flammable gases and vapors depending on their ignition
temperature:
For flammable substances, the temperature class and the maximum permitted
surface temperature of the equipment are of essential importance.
1.3.7. ATEX and machinery directive
The ATEX directive is in effect since July 1st. 2003 and replaces the individual laws
of the respective countries with reference to explosive atmospheres. While
previously only referring to electrical devices, the directive now does also comprise
mechanical, hydraulic and pneumatic devices.
With reference to the machinery directive 2006/42/EC it must be taken into
consideration, that a number of external requirements stated in the ATEX directive
94/9/EC refer to dangers occurring in explosive atmospheres, whereas the
machinery directive does only list requirements for explosion protection.
Hence, the ATEX directive 94/9/EC is superior to the machinery directive with
reference to explosion protection in potentially explosive atmospheres. The
requirements of the machinery directive are however valid for all other dangers
when operating machines.
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ETH ATEX
10 192-550004N2 ETH ATEX November 2013
II
all areas, except underground (mining)
2G
Zone 1, 2, gas explosion category 2G, 3G
c
constructional safety in accordance with DIN EN 13463-5
IIC
suitable for explosive region IIA, IIB and IIC.
Typical gases: Hydrogen
Ignition energy: >45 µJoule
T4
Temperature class 4
Ignition temperature of flammable substances > 135°C
II
all areas, except underground (mining)
2G
Zone 1, 2, gas explosion category 2G, 3G
c
constructional safety in accordance with DIN EN 13463-5
IIB
suitable for explosion region IIA and IIB.
Typical gases: Ethylene
Ignition energy: >160 µJoule
T4
Temperature class 4
Ignition temperature of flammable substances > 135°C
II 2G c IIB T4
EPS 13 ATEX 2 592 X
Parker Hannifin Manufacturing
Germany GmbH & Co. KG
Robert-Bosch-Straße 22
D-77656 Offenburg
Tel.+49(0)781 509-0
Serial number: 285950-0001
Type: ETH032M05C1K1BFMA0050A001
Order confirmation No.: 21015463 Date:
07.10.2013
Left:
Manufacturer address
Right:
CE, Ex, ...
ATEX marked
Serial
number:
Unambiguous identification number
Type:
Order code with unambiguous allocation to ATEX
application data
"A" = ATEX cylinder
"001" = ATEX application - identification number 1, ...
(A No.)
Order No.:
Customer Order No.:
Date:
Delivery date
1.4 ATEX marking
Parker ETH electro cylinders with the ATEX supplement are certified for use in
explosive gas atmospheres (device group II, category 2G).
An ETHelectro cylinder with the ATEX supplement complies with the requirements
of the EC directive 94/9/EC (ATEX 95). Below you can find an explanation of the
features and areas of usage resulting from the ATEX marking:
ETH032 & ETH050: II 2G c IIC T4
ETH080 & ETH100: II 2G c IIB T4
1.5 Type specification plate
Type specification plate (example)
Type specification plate explanation
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1
3
1
2
3
1.6 Intended use
The linear actuator has a number of uses including:
Positioning, transporting, feeding, removing, pallet handling, loading, unloading,
processing and manipulating as well as testing work pieces or tools.
Since the component can be used in a very wide range of applications, the user is
responsible for its use in specific applications.
Please make sure that the mounting of parts or tools will not pose a threat to
persons or cause damages to any parts or devices. This also applies, for example,
to the case of a broken toothed belt (if existing).
The linear actuator must only be used in areas that are not accessible to persons
during operation.
If the linear actuator is used in areas accessible to people, it must be installed in
such a manner that no one can be endangered during operation.
ATEX specific requirements
Strict adherence to the intended use of ATEX certified cylinders is the
absolute prerequisite for their use in explosive atmospheres.
If the ETH cylinder is used as intended, the ignition temperature is not exceeded in
any part of the ETH cylinder. The ETH cylinder is heated by the thermal effect of
the motor or the gearbox as well as by the frictional heat generated by the spindle
nut and the bearings, the latter however only if the cylinder is in motion. The
relevant heating occurs with high force, travel speed and cycle time of the spindle
nut. Therefore, the thermal behavior of the ETH cylinder must be taken into
consideration when sizing a drive application. The thermal behavior is therefore
verified for the ATEX application data provided by the user. If needs be, the ATEX
application data must be adapted (e.g. reduction of the cycle time)
Besides the heating behavior of the cylinder, the following boundary conditions
must be respected when using the cylinder in explosive atmospheres:
The ETH is especially designed for the use in explosive atmospheres in
accordance with the specifications of the ATEX directive 94/9/EC.
Each application is tested by Parker on the basis of the ATEX application data
provided by the user and is then certified in accordance with the ATEX directive
94/9/EC.
The operation of the electro cylinder is only permitted within the limits of the
ATEX application data provided by the user. Those are:
ETH Order code
Application specific force
(axial thrust force at the cylinder rod)
Application specific position time diagram or as movement
speed, stroke)
Maximum ambient temperature
In general it must be taken into consideration, that the maximum ambient
temperature of the ETH cylinder is the temperature which can act upon any spot
of the cylinder surface when the thrust rod is extended.
In addition, it applies for the measurement:
Linear interpolation of F(x) or F(t) between interpolation points.
For x(t), no interpolation between interpolation points.
time diagram or force stroke diagram2
(jerk, acceleration,
Axiale Vorschubkraft an der Zylinderkolbenstange
Darstellung in einer Stützpunkttabelle (Papier / elektronisch)
Darstellung in einer Stützpunkttabelle (Papier / elektronisch)
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ETH ATEX
12 192-550004N2 ETH ATEX November 2013
Furthermore, it applies for the intended use:
The ETH can be used in defined explosive atmospheres (see on page 10).
The shortened lubrication intervals applicable for ATEX are mandatory.
In short-stroke applications (stroke shorter than 2.5 times the screw lead), the
specified lubricating runs must be performed as described in the
operating/mounting instructions.
The cylinders must be replaced after 90 % of the attainable service life.
The permitted maximum side load on the thrust rod = 0.
No additional thermal effect due to a mechanical connection of the thrust rod with
a workpiece fixture or such, which might lead to a heating of the screw nut.
The product is designed for professional use and is not intended for private use.
Operational safety of the ETH is only guaranteed with intended use.
1.6.1. Applications not in accordance with the intended use
For risks of applications not in accordance with the intended use the user shall
bear the sole responsibility. Parker Hannifin does not accept any liability for
damages caused by applications not in accordance with the intended use of the
product.
1.7 Operator’s obligations
Legal requirements for the operator are directive 99/92/EC (ATEX 137) as well as
the implementation of the industrial safety regulation, which is supported by the
technical rules BG 104, BG 134 and TRBS 2152 and others.
The most important topics for explosion protection on the operator side are:
Grading and classification of explosive areas
Criteria for the selection of devices and protective systems
Explosion protection document (with risk assessment, measures taken, zone
classification, requirements for equipment, plant must be designed, operated and
maintained safely)
Minimum requirements for increased safety and health protection of the
employees, who might be in danger due to explosive atmospheres
Furthermore, the following responsibilities of the operator apply for the use of the
ETH ATEX cylinder:
Making sure that the the intended use is observed
The operator of the entire system must ensure that the ETH is mounted by
authorized and qualified personnel only. Authorized personnel means trained
specialized employees of the customer, the manufacturer or of a service partner,
who work in accordance with the specifications for explosion protection.
Regular instruction of the operating personnel
Taking dangers of ignition resulting from the installation of equipment into a
system into consideration.
Do NOT try to make unauthorized repairs. In this case, please do contact Parker.
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Danger!
Indicates that an imminent hazardous situation may lead to death or serious bodily harm if
not prevented using appropriate safety measures.
Warning!
Indicates a potentially hazardous situation which, if not avoided using appropriate safety
measures, could result in serious or minor injury.
Caution!
Indicates a potentially hazardous situation which, if not avoided using appropriate safety
measures, may result in minor injury or material damage.
Hint
Provides important information about the product, how to handle the product or about the
part of the manual to which particular attention must be paid.
1.8 Safety instructions
1.8.1. General hazards
General Hazards on Non-Compliance with the Safety Instructions
The subsystem has been designed in accordance with state-of-the-art technical
developments and is operationally reliable. If it is not operated by qualified or at
least trained personnel or if it is operated improperly or not in accordance with the
operating instructions, however, the unit may bear the risk of hazards.
Electronic, moving and rotating components can
Danger for life and limb of the operator or third persons and / or
cause material damage
If the linear actuator is installed in a machine plant, the safety requirements noted
in the operating instructions for that machine must be combined with those
described in this manual.
1.8.2. Identifying Residual Dangers and Hazardous Areas
If there are still residual dangers present to persons or property from the linear
actuator in spite of operating it in a safe manner, the user must make reference to
these residual dangers through signs and written rules requiring appropriate
procedures.
The following safety signal words are used:
1.8.3. Working safely
Heed the Instructions
The information (such as instructions and notes) contained in this manual must be
heeded for all work involved in installing, commissioning, setting up, operating,
changing operating conditions and modes, servicing, inspecting and repairing the
unit.
The manual must be available close to the linear module during the performance of
all tasks.
It is impermissible to operate the liner module if it is not in perfectly functional
condition.
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14 192-550004N2 ETH ATEX November 2013
Operating personnel
The following jobs must only be performed by appropriately trained and authorized
personnel:
Installation and set-up tasks on the linear actuator
Attaching safety limit switches (initiators)
Connecting the drive and testing the motion direction
Instructions for Special Hazards
The linear module must be fixed or supported in accordance with the indications in
this manual.
The operator must ensure that operation of the linear module does not cause any
danger.
If the linear module moves in hazardous areas, these areas must be safeguarded
with safety transmitter switches.
1.8.4. Safety Instructions for the Company Using the System
Supervisors must also become familiar with the entire chapter entitled "Safety" and
handling required on the linear actuator.
Supervisors must ensure that installation and operating personnel have read and
understand the chapter entitled "Safety" and the description of how to work with the
machine, and that they observe the instructions.
The manual must be available close to the linear module during the performance of
all tasks.
It is impermissible to operate the liner module if it is not in perfectly functional
condition.
Depending on the application, the operating company must provide for a suitable
separating safety fence. Access to the motion range during operation must be
prevented.
The user must make sure that the work area is protected by appropriate safety
devices.
1.8.5. Safety Instructions for Operating Personnel
Any work step that has a negative effect on the operating safety of the linear motor
module must be omitted.
Operating and supervisory personnel are required to check the linear actuator or
machine at least once per shift for externally visible damage or defects. Changes
that have occurred (including the operating behavior) that could have a negative
effect on the operating safety must be reported immediately.
Components and accessories are designed especially for this product. When
purchasing spare and wearing parts, use only original Parker parts. We note here
explicitly that we are unable to check or release spare parts or accessories that
were not provided by us. Installing and/or using such products may cause negative
changes in the required design properties in some circumstances, which in turn
could negatively effect the active and/or passive operating safety of the product.
The manufacturer is unable to accept any liability for damage caused by using
non-original parts and accessories.
Safety and protection devices are strictly NOT to be removed or bypassed or set
out of order.
Applicable requirements and national accident prevention regulations must always
be observed when installing and operating our linear motor module.
1.8.6. ATEX specific safety instructions
If the operating instructions and the technical specifications are not respected, the
declaration of conformity expires in accordance to the ATEX directive 94/9/EG.
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Caution!
For ATEX cylinders, only sensors are permitted, which are certified for:
zone 1 (category 2G),
for explosion region IIB or IIC and
for temperature class 4.
1.8.6.1 General safety instructions - ATEX
The operator of the entire system must ensure that the ETH is mounted by
authorized and qualified personnel only. Authorized personnel means trained
specialized employees of the customer, the manufacturer or of a service partner,
who work in accordance with the specifications for explosion protection.
The linear actuators may not be modified with respect to the design or
safety-related features without the written approval of Parker Hannifin
Manufacturing Germany GmbH & Co. KG. Any unauthorized modification in this
respect will exclude any liability on the part of Parker Hannifin Manufacturing
Germany GmbH & Co. KG.
It is strictly forbidden to dismount or disable safety and protection devices.
In addition, the following rules and regulations apply as a matter of course:
the applicable regulations for health and safety at work
generally accepted rules for the safe operation of machinery
the EU Directives and
any special regulations of the respective country/state.
1.8.7. Product specific safety instructions
Danger of explosion when working in explosive atmospheres!
If the system where the cylinder is to be mounted is surrounded by an explosive
atmosphere, it may ignite during work.
Do always respect the local installation regulations.
Danger of explosion due to spark formation!
Electrostatic charge of the cylinder may lead to sparks and cause danger of
explosion in explosion protection zones.
Avoid electrostatic charge.
The cylinder must be grounded and be a part of the grounding concept. Indirect
grounding via the motor is permitted.
Mechanical charges cause sparks and danger of explosion.
Never expose the cylinder to powers of impact during transport, mounting and
operation.
Some thrust rod ends and mounting methods permit oscillating rotational and
pivoting movements of the cylinder. If these elements are used:
Make sure, that circumferential speeds at the friction surfaces do not exceed
1 m/s.
Never twist or bend the cylinder or fix it under stress.
Avoid incorrect load mounting at the thrust rod end, see chapter 4: setup
Furthermore, please respect and implement the following topics:
The cylinder must be used in a max. grade II pollution environment (ordinary
industrial environment in accordance with EN 60664-1).
The user must avoid stray currents.
The cylinder must be exchanged after 90 % of its nominal service life.
Special lubrication intervals (see chapter 5, maintenance) must be respected.
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16 192-550004N2 ETH ATEX November 2013
1.9 Terms of guarantee / warranty
These operating instructions are subject to changes including changes in technical
details with respect to the information and figures contained herein.
Parker Hannifin Manufacturing Germany GmbH & Co. KG grants no quality or
durability guarantees nor any guarantees as to the suitability for specific purposes.
Such guarantees must be expressly agreed upon in writing
Public statements, recommendations or advertising do not in any way represent
quality specifications.
The operator's warranty rights require that the operator immediately report any
defects and precisely describe said defects in the complaint. Parker Hannifin
Manufacturing Germany GmbH & Co. KG is not responsible under any
circumstances for damage to the product itself or any consequential damage
caused by the product resulting from improper handling of the product. If
Parker-Hannifin Manufacturing Germany GmbH & Co. KG is responsible for a
defect, Parker-Hannifin Manufacturing Germany GmbH & Co. KG shall be
authorized, at its discretion, to undertake improvements or deliver replacements.
In compliance with ISO 9000, all products are equipped with a type plate that is
connected to the device. The type plate must not be removed or damaged under
any circumstances.
Parker Hannifin Manufacturing Germany GmbH & Co. KG shall not be held liable,
regardless of any legal basis, except for cases of intent or gross negligence;
injuries to life, body or health; or defects of malicious nondisclosure or whose
absence was expressly guaranteed in writing.
Furthermore, if there is compulsory liability under the Product Liability legislation for
personal injury and property damage to privately used objects, in the event of
negligent breach of significant contractual obligations, Parker Hannifin
Manufacturing Germany GmbH & Co. KG shall also be liable for cases of ordinary
negligence; however, this is limited to damages that are contractually typical and
foreseeable.
Further claims are hereby excluded.
Failure to adhere to these operating instructions or the relevant statutory provisions
as well as any other information from the supplier shall invalidate the warranty.
In particular, we are not responsible for failures caused by modifications made by
the customer or other parties. In such cases, the normal repair costs will be
calculated. These costs will likewise be calculated for a check of the unit if no fault
can be determined on the unit.
This regulation also applies during the warranty period.
No claims exist as to the availability of previous versions or to the retrofitting
capacity of the units delivered to adapt them to the respectively current model
version.
User Conversions and Changes are Not Permitted
The linear actuator must not be changed in its design or in terms of safety without
our approval. Any change as defined here made by the user excludes any liability
on our part.
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The operation of the electro cylinder is only permitted within the limit values stated
in this manual.
Unless, all claims under the warranty will become void and a reduced service life
or even damages must be expected.
Even if the limit switches were already mounted at our premises, they must be
adapted according to suitable values before operation!
Note on cylinder mounting
Do always use all available mounting possibilities and respect the requirements
listed in chapter "Screw tightening torques for the mounting of the ETH cylinder
by the customer"
The internal end stops of the electro cylinder may under no circumstances be
accessed during operation. The internal end positions may only be accessed by the
cylinder in setup mode and only for determining the end positions with a low force of
a few N (torque limitation if possible below 10 %) and very slowly (max. 2 % of the
nominal speed).
1.10 Conditions of utilization
General introductory notes
With the electro cylinder you bought a product which was manufactured and tested
before delivery with the utmost care.
Please take your time to read the following notes which you ought to follow closely
during setup and operation.
Please compare the operating data with the stated limit values especially
with reference to:
Stroke length and setting of the limit switches, those must be set so that there is a
sufficient safety travel at both ends of the travel stroke
Thrust and traction force in the effective direction
Lateral force (e.g. as a component of the effective force, but also due to own
weight on horizontal mounting, especially with parallel motor mounting and long
travel strokes)
Speed
Acceleration
Environmental conditions (e.g. temperature, contamination)
Please do take possible pulses caused by moved masses into consideration for
the operating data. (Even small abrupt loads can cause damage, especially if
they occur rather often at the same place.)
The limit values for the thrust and traction force, lateral force, speed and
acceleration are partly influenced by several factors and can change
depending on:
The size of the electro cylinder
Screw lead
Direct or parallel drive via toothed belt transmission
Mounting method
Mounting orientation vertical or horizontal resp. inclined
Travel Stroke
If the motor used with the electro cylinder should be able to exceed individual limit
values of the cylinder, the respective values for the motor must be limited in the
control by appropriate parameterization. The parameterization should even be
reduced down to the values necessary for operation.
This would, for example provide a hint to a possible damage or to preventive
maintenance if wear-induced extensive friction of the machine or cylinder would
trigger an error message of the controller.
The lifetime of the electro cylinder depends strongly on the degree of power
exploitation and on impermissible operating states occurring - even if only for a
short time.
Page 18
Maintenance
ETH ATEX
18 192-550004N2 ETH ATEX November 2013
In this chapter you can read about:
Maintenance schedule ..................................................................................................... 18
Lubricating intervals and amount of lubricant for ATEX ETH electro cylinders.................. 19
Toothed belt .................................................................................................................... 20
WHEN
WHAT
ACTION
After commissioning
Screw
The cylinder is furnished completely lubricated.
If the cylinder was held on stock at your premises for
more than 1 year, it must be relubricated before
commissioning.
see lubricating intervals and amount of lubricant
Depending on the mileage,
see table Lubricating intervals
and amount of lubricant
Screw
Relubricating the screw.
see lubricating intervals and amount of lubricant
Annually
Electro Cylinder
Visual inspection for external damages of the actuator
If externally caused damages are visible on the thrust
rod or on the profile, please contact Parker.
Annually
Fixings provided by the
customer
Check screw tightening torque.
see mounting tightening torques ETH
Annually, or every 6000 hours of
operation
Toothed belt
(with parallel
configuration)
In general, the high performance toothed belts used in
the ETH are maintenance free.
Visual inspection of the timing belt is however
required. Please check the toothed belt for the
following aspects:
Wear at the teeth
Cracks in the tooth root surface
Fractures in the belt back
If you find signs of wear, the toothed belt must be
exchanged.
2. Maintenance
Maintenance measures ETH
The ballscrew drive must be relubricated within given intervals.
The lubrication intervals depend on the operating conditions (nominal size, pitch,
speed, acceleration, loads, etc.) and the ambient conditions (e.g. temperature).
Ambient influences such as high loads, impacts and vibrations shorten the
lubrication intervals.
In short-stroke applications, a lubrication run must be performed after max. 10 000
movement cycles.
Service life: see in the catalog section (following the mounting instructions).
In the event of small loads and if the application is impact and vibration free, the
lubrication intervals can be increased. Under normal operating conditions, the
given lubrication intervals apply. If the total travel per year is shorter than the given
intervals, the cylinder must be relubricated at least once per year.
2.1 Maintenance schedule
Page 19
Parker EME
Maintenance
192-550004N2 ETH ATEX November 2013 19
Screw
Interval
Amount of lubricant
ETH032
M05
80 km
1.3 cm3
M10
160 km
1.6 cm3
M16
250 km
2.1 cm3
ETH050
M05
80 km
1.6 cm3
M10
160 km
1.9 cm3
M20
320 km
2.7 cm3
ETH080
M05
80 km
3.1 cm3
M10
160 km
4.4 cm3
M32
510 km
7.8 cm3
ETH100
M10
80 km
14 cm3
M20
160 km
17 cm3
Do only use "Klüber NBU15" lubricating grease for standard
cylinders!
1:
Central lubrication (standard)
2:
Central lubrication (Option)
ATTENTION!
Ensure by means of control, that the internal buffer is not passed by more than
0.5 mm!
2.2 Lubricating intervals and amount of lubricant for ATEX ETH electro cylinders
Lubricant
For applications in food related areas, "Klübersynth UH1 64-62" grease is used (customized version).
2.2.1. Greasing via central lubrication port (standard)
Make sure that all external stops are removed.
Retreat thrust rod completely so that it touches the rear stop.
Pass internal buffer by 0.5 mm.
This is the lubricating position.
Use a suitable pipe for the funnel type lubricating nipple, Type D1a4 DIN3405:
Beaked nozzle.
Place the pipe orthogonally onto the lubricating nipple and press.
Use the defined amount of lubricant.
The amount of lubricant applied can be defined by the number of pump strokes.
Pump the stated amount of grease onto a balance, while counting the pump
strokes.
Page 20
Maintenance
ETH ATEX
20 192-550004N2 ETH ATEX November 2013
1:
Central lubrication (standard)
2:
Central lubrication (Option)
In this chapter you can read about:
Check toothed belt ........................................................................................................... 20
Toothed belt exchange .................................................................................................... 20
2.2.2. Relubrication via central lubrication port (option)
Loosen lubrication port screw.
Move the cylinder slowly to the lubricating position until the lubricating port
becomes visible.
The lubricating ports have a diameter of 2.5 mm. Therefore you need a beaked
nozzle insert for your lubricating gun.
Use a stable pipe (no hose).
Insert the nozzle into the hole in the cylinder profile and place it orthogonally onto
the lubricating port.
Use the defined amount of lubricant.
The amount of lubricant applied can be defined by the number of pump strokes.
Pump the stated amount of grease onto a balance, while counting the pump
strokes.
2.3 Toothed belt
2.3.1. Check toothed belt
In general, the high performance toothed belts used in the ETH are maintenance free.
Visual inspection of the timing belt is however required. Please check the toothed belt for the
following aspects:
Wear at the teeth
Cracks in the tooth root surface
Fractures in the belt back
2.3.2. Toothed belt exchange
If you find signs of wear, the toothed belt must be exchanged.
Under good operating conditions, the toothed belt may run for 6000 hours of
operation. After this time, the belt must be exchanged.
Good operating conditions are:
no negative environmental influences
perfect alignment of the shafts
approved and correct geometry of the pulleys
correct mounting
permitted transmissible drive torques are respected.
Page 21
Parker EME
Repair
192-550004N2 ETH ATEX November 2013 21
3. Repair
In the event of a damage or a mechanical defect, the entire unit must be returned
for repair (Parker Hannifin (see on page 2)). The repair must be made by trained
Parker personnel.
User Conversions and Changes are Not Permitted
The linear actuator must not be changed in its design or in terms of safety without
our approval. Any change as defined here made by the user excludes any liability
on our part.
Page 22
ETH ATEX - application data
ETH ATEX
22 192-550004N2 ETH ATEX November 2013
Responsibility /
Cooperation
Procedure
Documents /
Notes
1.
User / Parker
Verifying the intended use
Verifying the intended use of the ETH in the desired
application
ETH intended use in
accordance with ATEX
(present document No.
192-550004)
2.
User / Parker
Identifying the ATEX application data:
ETH Order code
Application specific force
4
time diagram or force
stroke diagram5
(axial thrust force at the cylinder rod)
Application specific position time diagram or as
movement6 (jerk, acceleration, speed, stroke)
Maximum ambient temperature
In general it must be taken into consideration, that the
maximum ambient temperature of the ETH cylinder is
the temperature which can act upon any spot of the
cylinder surface when the thrust rod is extended.
In addition, it applies for the measurement:
Linear interpolation of F(x) or F(t) between
interpolation points.
For x(t), no interpolation between interpolation points.
ATEX application data
3.
Parker
Measurement of the internal heat generation
We set up your cycle in the lab and measure the maximum
temperature occurring at the screw nut. This is the spot
where the cylinder is most susceptible to heating up.
ATEX application data
4.
Parker / User
Evaluation of the measurement results / measures
Application can be released
If the permitted internal heat generation is met, the
application specific ETH ATEX certification can be
granted (proceed from 5.)
Application can not be released
If the internal heat generation is too high, modifications
are required.
The required modifications are defined in cooperation
with Parker. (proceed from 2.)
ATEX application data
5.
Parker
ATEX release
ATEX Certification for the submitted ATEX application data
and the specific ETH cylinder defined by the order code.
Allocation of an unambiguous A number (part of the
order code) for the ATEX application data verified.
Via the A number included in the order code and the
designation for ATEX cylinders (17th digit in the order
code = “A”), the ETH ATEX cylinder is unambiguously
defined and can be ordered accordingly.
ATEX test protocol
with A number
ATEX Application data
with reference to the
order code of the ETH
(see on page 10)
cylinder
4
5
6
4. ETH ATEX - application data
ATEX certification for the ETH cylinder is always for specific ATEX application data.
Therefore, we need your precise application data in advance.
Procedure of application specific certification ETH ATEX
Axial thrust force at the cylinder thrust rod
Representation in an support point table (on paper/electronically)
Representation in an support point table (on paper/electronically)
Page 23
Parker EME
ETH ATEX - application data
192-550004N2 ETH ATEX November 2013 23
4.1.1.1 Caution!
ATEX certification is exclusively valid for the submitted ATEX application data and the
specific ETH cylinder unambiguously defined by the order code.
Operation of the ETH is therefore only permitted if the submitted ATEX application
data are met!
Reduced performance data are possible. For instance:
lower force
lower speed / acceleration / reduced jerk
reduced ambient temperature
extended standstill / breaks
Page 24
Index
ETH ATEX
24 192-550004N2 ETH ATEX November 2013
5. Index
A
Applications not in accordance with the
intended use - 12
ATEX and machinery directive - 9
ATEX declaration of conformity - 6
ATEX marking - 10
ATEX specific safety instructions - 14
C
Check toothed belt - 20
Conditions of utilization - 17
E
ETH ATEX - application data - 22
Explosion subgroup - 9
Explosive atmospheres - 7
G
General hazards - 13
General safety instructions - ATEX - 15
Greasing via central lubrication port (standard)
- 19
S
Safety instructions - 13
Safety Instructions for Operating Personnel -
14
Safety Instructions for the Company Using the
System - 14
T
Temperature classes - 9
Terms of guarantee / warranty - 16
Toothed belt - 20
Toothed belt exchange - 20
Type of explosion protection - 9
Type specification plate - 10
W
Working safely - 13
Z
Zone classification / device categories - 8
H
Harmonized European ATEX Standard - 7
I
Identifying Residual Dangers and Hazardous
Areas - 13
Intended use - 11
Introduction - 4
Introduction to ATEX - 7
L
Lubricating intervals and amount of lubricant
for ATEX ETH electro cylinders - 19
M
Maintenance - 18
Maintenance schedule - 18
Mounting explanation - 5
O
Operator’s obligations - 12
P
Product specific safety instructions - 15
R
Relubrication via central lubrication port
(option) - 20
Repair - 21
Page 25
Parker EME
Index
192-550004N2 ETH ATEX November 2013 25
Page 26
Index
ETH ATEX
26 192-550004N2 ETH ATEX November 2013
Page 27
Parker EME
Index
192-550004N2 ETH ATEX November 2013 27
Page 28
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