SCHUNK EGS Series User instructions

Translation of Original Operating Manual
Assembly and Operating Manual
EGS
Electric 2-finger parallel swivel unit

Imprint
2 05.00 | EGS | Assembly and Operating Manual | en | 389746
Imprint
Copyright:
This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights
reserved.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 389746
Version: 05.00|26/07/2022|en
Dear Customer,
thank you for trusting our products and our family-owned company, the leading
technology supplier of robots and production machines.
Our team is always available to answer any questions on this product and other solutions.
Ask us questions and challenge us. We will find a solution!
Best regards,
Your SCHUNK team
Customer Management
Tel. [phone]
Fax [phone]
[email protected]
Please read the operating manual in full and keep it close to the product.

Table of Contents
Table of Contents
1 General.................................................................................................................... 5
1.1 About this manual ................................................................................................ 5
1.1.1 Presentation of Warning Labels ...............................................................5
1.1.2 Applicable documents ..............................................................................6
1.1.3 Sizes ..........................................................................................................6
1.2 Warranty .............................................................................................................. 6
1.3 Scope of delivery .................................................................................................. 6
1.4 Accessories ........................................................................................................... 7
1.4.1 Spare parts packages................................................................................7
2 Basic safety notes ................................................................................................... 8
2.1 Intended use......................................................................................................... 8
2.2 Constructional changes ........................................................................................ 8
2.3 Spare parts ........................................................................................................... 8
2.4 Gripper fingers ..................................................................................................... 9
2.5 Environmental and operating conditions ............................................................. 9
2.5.1 Electromagnetic compatibility..................................................................9
2.5.2 Environmental conditions.......................................................................11
2.6 Personnel qualification....................................................................................... 13
2.7 Personal protective equipment.......................................................................... 13
2.8 Notes on safe operation ..................................................................................... 14
2.9 Transport ............................................................................................................ 14
2.10 Malfunctions....................................................................................................... 14
2.11 Disposal .............................................................................................................. 15
2.12 Fundamental dangers......................................................................................... 15
2.12.1 Protection during handling and assembly ..............................................15
2.12.2 Protection during commissioning and operation ...................................16
2.12.3 Protection against dangerous movements.............................................16
2.12.4 Protection against electric shock............................................................17
2.12.5 Protection against magnetic and electromagnetic fields .......................18
2.13 Notes on particular risks..................................................................................... 19
3 Technical Data ........................................................................................................21
4 Design and description............................................................................................23
4.1 Design ................................................................................................................. 23
4.2 Description ......................................................................................................... 23
4.3 Function label ..................................................................................................... 24
4.3.1 Rotary switch gripping force and swivel speed ......................................25
4.3.2 LED..........................................................................................................26
4.4 Anti-Windup regulator ....................................................................................... 27
4.5 Actuation ............................................................................................................ 27
4.6 Definition swivel direction.................................................................................. 29
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Table of Contents
5 Assembly and settings ............................................................................................30
5.1 Installing and connecting.................................................................................... 30
5.2 Connections........................................................................................................ 31
5.2.1 Mechanical connection...........................................................................31
5.2.2 Electrical connection ..............................................................................34
5.3 Notes to sensors................................................................................................. 35
5.4 Prepare product for angle of rotation 30-135° and 215-270° ............................ 36
5.5 Angle of rotation, sensor bracket and setting sensor......................................... 37
5.6 Logic table .......................................................................................................... 40
6 Troubleshooting .....................................................................................................42
6.1 Product does not move ...................................................................................... 42
6.2 Product does not execute a complete stroke..................................................... 42
6.3 Product opens or closes jerkily........................................................................... 42
6.4 Gripping force too low........................................................................................ 43
6.5 Opening and closing times are not achieved...................................................... 43
6.6 Product does not perform the full rotating angle .............................................. 43
6.7 Product rotates jerkily ........................................................................................ 43
6.8 Swivel times are not achieved............................................................................ 43
6.9 Electric signals are not transmitted? .................................................................44
6.10 Faults which are displayed via LED Error............................................................ 44
7 Maintenance ..........................................................................................................45
7.1 Maintenance intervals........................................................................................ 45
7.2 Lubricants and lubricating points ....................................................................... 46
7.3 Changing swiveling stop ..................................................................................... 47
7.4 Changing the sensor bracket .............................................................................. 48
8 Translation of original declaration of incorporation ................................................50
9 Annex to Declaration of Incorporation....................................................................51
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General
1 General
1.1 About this manual
This manual contains important information for a safe and
appropriate use of the product.
This manual is an integral part of the product and must be kept
accessible for the personnel at all times.
Before starting work, the personnel must have read and
understood this operating manual. Prerequisite for safe working is
the observance of all safety instructions in this manual.
Illustrations in this manual are provided for basic understanding
and may differ from the actual product design.
In addition to these instructions, the documents listed
under }1.1.2 [/6] are applicable.
1.1.1 Presentation of Warning Labels
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Danger for persons!
Non-observance will inevitably cause irreversible injury or death.
WARNING
Dangers for persons!
Non-observance can lead to irreversible injury and even death.
CAUTION
Dangers for persons!
Non-observance can cause minor injuries.
CAUTION
Material damage!
Information about avoiding material damage.
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General
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1.1.2 Applicable documents
• General terms of business *
• Catalog data sheet of the purchased product *
• Assembly and operating manuals of the accessories *
The documents labeled with an asterisk (*) can be downloaded
from schunk.com.
1.1.3 Sizes
This operating manual applies to the following sizes:
• EGS 25
• EGS 40
1.2 Warranty
If the product is used as intended, the warranty is valid for 24
months from the ex-works delivery date under the following
conditions:
• Observe the maximum service life. }3 [/21]
• Observe the ambient conditions and operating
conditions, }2.5 [/9]
• Observe the specified maintenance and lubrication
intervals, }7 [/45]
Parts touching the workpiece and wear parts are not included in
the warranty.
1.3 Scope of delivery
The scope of delivery includes
• Electric 2-finger parallel swivel unit EGS in the version ordered
• Assembly and Operating Manual
• Accessory pack

General
1.4 Accessories
The following accessories, which must be ordered separately, are
required for the product:
• 2x connection cable 4-pole, socket M8
– angled, 5m
– angled, 10m
– straight, 5m
– straight, 10m
NOTE
When using customer-supplied cable: min. 4 x 0.25 mm²
A wide range of accessories are available for this product
For information regarding which accessory articles can be used
with the corresponding product variants, see catalog data sheet.
1.4.1 Spare parts packages
Spare parts packages allow for the maintenance and repair of
individual components. For information on the range of the spare
parts packages, see www.schunk.com > Service.
The following spare parts packages are available for this product:
• Spare part package "Swiveling stop"
• Spare part package "Sensor bracket"
Swiveling stop
Size ID number
EGS 25 1380497
EGS 40 1399835
Sensor bracket
Size ID number
EGS 25 1380491
EGS 40 1399828
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Basic safety notes
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2 Basic safety notes
2.1 Intended use
The product is designed exclusively for gripping and temporarily
holding workpieces or objects.
• The product may only be used within the scope of its technical
data, }3 [/21].
• The product is intended for installation in a machine/automated
system. The applicable guidelines for the machine/automated
system must be observed and complied with.
• The product is intended for industrial and industry-oriented use.
Its use outside enclosed spaces is only permitted if suitable
protective measures are taken against outdoor exposure. The
product is not suitable for use in salty air.
• The product can be used within the permissible load limits and
technical data for holding workpieces during simple machining
operations, but is not a clamping device according to EN
1550:1997+A1:2008.
• Appropriate use of the product includes compliance with all
instructions in this manual.
• Any utilization that exceeds or differs from the appropriate use
is regarded as misuse.
2.2 Constructional changes
Implementation of structural changes
By conversions, changes, and reworking, e.g. additional threads,
holes, or safety devices can impair the functioning or safety of the
product or damage it.
• Structural changes should only be made with the written
approval of SCHUNK.
2.3 Spare parts
Use of unauthorized spare parts
Using unauthorized spare parts can endanger personnel and
damage the product or cause it to malfunction.
• Use only original spare parts or spares authorized by SCHUNK.

Basic safety notes
2.4 Gripper fingers
Requirements of gripper fingers
Accumulated energy can make the product unsafe and risk the
danger of serious injuries and considerable material damage.
• Execute the gripper fingers in such a way that the product
reaches either the "open" or "closed" position in a de-energized
state.
• Only change gripper fingers if no residual energy can be
released.
• Make sure that the product and the top jaws are a sufficient
size for the application.
2.5 Environmental and operating conditions
Required ambient conditions and operating conditions
Incorrect ambient and operating conditions can make the product
unsafe, leading to the risk of serious injuries, considerable material
damage and/or a significant reduction to the product's life span.
See also Link Daten Umgebungs- und Einsatzbedingungen.
• Make sure that the product and the top jaws are a sufficient
size for the application.
• Ensure that maintenance and lubrication intervals are
observed, }7 [/45].
2.5.1 Electromagnetic compatibility
The product meets the requirements of the EMC act of the inner-
European market, among other requirements. The product has
passed the EMC test as per the following standards:
Standard Title
EN 61000-6-2
(2006)
EMC: Generic standard – Interference immunity
in industrial environments
EN 61000-6-3
(2011)
EMC: Generic standards - emitted interference
for living area, business and commercial areas
and small businesses
The product must be installed using interference-free cables and in
a way that meets EMC requirements in order to ensure
interference-free operation.
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Basic safety notes
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Interference
variables:
The electromagnetic compability with pulse-shaped inference
variables has been verified and confirmed according to the
following standards:
Standard Title
EN 61000-4-2
(2008)
Test and measurement procedures - Testing the
interference immunity to discharging of static
electricity
EN 61000-4-4
(2008)
Test and measurements procedures - Testing the
interference immunity to fast transient electric
interference variables/burst
EN 61000-4-5
(2014)
Test and measurement procedures - Testing the
interference immunity to surge voltages
Sinusoidal interference variables:
The electromagnetic compability with sinusoidal interference
variables has been verified and confirmed according to the
following standards:
Standard Title
EN 61000-4-3
(2011)
Test and measurement procedures - Testing the
interference immunity to electromagnetic high
frequency fields
EN 61000-4-6
(2014)
Test and measurement procedures - interference
immunity to conducted interference variables
induced by high frequency fields
Emission of radio
interference
The emission of radio interference has been verified and
confirmed according to the following standards:
Standard Title
EN 61000-6-3
(2011)
EMC: Generic standards - emitted interference
for living area, business and commercial areas
and small businesses

Basic safety notes
2.5.2 Environmental conditions
Requirements for
transport and storage
The following information applies if the product is transported and
stored in the original package.
Mechanical Environmental Conditions Standard: IEC 60721-3-2
(1997-02) Title: Classification of environmental conditions – Part 3:
Classification of groups of environmental parameters and their
severities, Section 2: Transportation. Class 2M3 applies.
Climatic Environmental Conditions Standard: IEC 60721-3-2
(version 1997-02) Title: Classification of environmental conditions
– Part 3: Classification of groups of environmental parameters and
their severities, Section 2: Transportation. Class 2K4 applies.
The aforementioned standards result in the following parameters
for the essential environmental conditions:
Standard Title
According to
EN 60068-2-1
Test method - test A: cold
According to
EN 60068-2-2
Test method - test B: dry heat
Requirements during
operation
The following overview shows the permissible environmental
conditions for the product.
Mechanical Environmental Conditions Standard: IEC 60721-3-3
(1995-09) Title: Classification of environmental conditions – Part 3:
Classification of groups of environmental parameters and their
severities, Section 3: Stationary use at weather-protected
locations. Class 3M7 applies.
Climatic Environmental Conditions Standard: IEC 60721-3-3
(1995-09) Title: Classification of environmental conditions – Part 3:
Classification of groups of environmental parameters and their
severities, Section 3: Stationary use at weather-protected
locations. Class 3K3 applies
The product has been tested for the essential environmental
conditions according to the following standards:
Standard Title
According to
EN 60068-2-1
Test method - test A: cold
According to
EN 60068-2-2
Test method - test B: dry heat
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Basic safety notes
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The product may only be used in the following locations if
additional measures are taken:
• In locations with a high level of ionizing radiation
• In locations with difficult operating conditions, e.g., due to
caustic fumes, gases, oils or chemicals
• In facilities requiring special monitoring, e.g., in particularly at-
risk areas
The product must also not be used in potentially explosive zones.
If the product is subjected to unacceptably large impacts or
vibrations, suitable measures must be taken to reduce the
amplitude or acceleration of such disturbances. Vibration-damping
or vibration-absorbing systems are to be used in such cases.
Tests with regard to
ambient conditions
Tests with regard to mechanical environmental conditions
The electronics integrated in the product has been tested with
respect to mechanical environmental conditions according to the
following standards:
Standard Title
EN 60068-2-6
(2008-10)
Test method - test Fc: oscillation (sinusoidal)
EN 60068-2-27
(2010-02)
Test method - test Ea and guidelines: shock
EN 60068-2-64
(2009-04 )
Test method - test Fh: broadband noises

Basic safety notes
2.6 Personnel qualification
Inadequate qualifications of the personnel
If the personnel working with the product is not sufficiently
qualified, the result may be serious injuries and significant
property damage.
• All work may only be performed by qualified personnel.
• Before working with the product, the personnel must have read
and understood the complete assembly and operating manual.
• Observe the national safety regulations and rules and general
safety instructions.
The following personal qualifications are necessary for the various
activities related to the product:
Trained electrician Due to their technical training, knowledge and experience, trained
electricians are able to work on electrical systems, recognize and
avoid possible dangers and know the relevant standards and
regulations.
Qualified personnel Due to its technical training, knowledge and experience, qualified
personnel is able to perform the delegated tasks, recognize and
avoid possible dangers and knows the relevant standards and
regulations.
Instructed person Instructed persons were instructed by the operator about the
delegated tasks and possible dangers due to improper behaviour.
Service personnel of
the manufacturer
Due to its technical training, knowledge and experience, service
personnel of the manufacturer is able to perform the delegated
tasks and to recognize and avoid possible dangers.
2.7 Personal protective equipment
Use of personal protective equipment
Personal protective equipment serves to protect staff against
danger which may interfere with their health or safety at work.
• When working on and with the product, observe the
occupational health and safety regulations and wear the
required personal protective equipment.
• Observe the valid safety and accident prevention regulations.
• Wear protective gloves to guard against sharp edges and
corners or rough surfaces.
• Wear heat-resistant protective gloves when handling hot
surfaces.
• Wear protective gloves and safety goggles when handling
hazardous substances.
• Wear close-fitting protective clothing and also wear long hair in
a hairnet when dealing with moving components.
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Basic safety notes
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2.8 Notes on safe operation
Incorrect handling of the personnel
Incorrect handling and assembly may impair the product's safety
and cause serious injuries and considerable material damage.
• Avoid any manner of working that may interfere with the
function and operational safety of the product.
• Use the product as intended.
• Observe the safety notes and assembly instructions.
• Do not expose the product to any corrosive media. This does
not apply to products that are designed for special
environments.
• Eliminate any malfunction immediately.
• Observe the care and maintenance instructions.
• Observe the current safety, accident prevention and
environmental protection regulations regarding the product's
application field.
2.9 Transport
Handling during transport
Incorrect handling during transport may impair the product's
safety and cause serious injuries and considerable material
damage.
• When handling heavy weights, use lifting equipment to lift the
product and transport it by appropriate means.
• Secure the product against falling during transportation and
handling.
• Stand clear of suspended loads.
2.10 Malfunctions
Behavior in case of malfunctions
• Immediately remove the product from operation and report the
malfunction to the responsible departments/persons.
• Order appropriately trained personnel to rectify the
malfunction.
• Do not recommission the product until the malfunction has
been rectified.
• Test the product after a malfunction to establish whether it still
functions properly and no increased risks have arisen.

Basic safety notes
2.11 Disposal
Handling of disposal
The incorrect handling of disposal may impair the product's safety
and cause serious injuries as well as considerable material and
environmental harm.
• Follow local regulations on dispatching product components for
recycling or proper disposal.
2.12 Fundamental dangers
General
• Observe safety distances.
• Never deactivate safety devices.
• Before commissioning the product, take appropriate protective
measures to secure the danger zone.
• Disconnect power sources before installation, modification,
maintenance, or calibration. Ensure that no residual energy
remains in the system.
• If the energy supply is connected, do not move any parts by
hand.
• Do not reach into the open mechanism or movement area of
the product during operation.
2.12.1 Protection during handling and assembly
Incorrect handling and assembly
Incorrect handling and assembly may impair the product's safety
and cause serious injuries and considerable material damage.
• Have all work carried out by appropriately qualified personnel.
• For all work, secure the product against accidental operation.
• Observe the relevant accident prevention rules.
• Use suitable assembly and transport equipment and take
precautions to prevent jamming and crushing.
Incorrect lifting of loads
Falling loads may cause serious injuries and even death.
• Stand clear of suspended loads and do not step into their
swiveling range.
• Never move loads without supervision.
• Do not leave suspended loads unattended.
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Basic safety notes
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2.12.2 Protection during commissioning and operation
Falling or violently ejected components
Falling and violently ejected components can cause serious injuries
and even death.
• Take appropriate protective measures to secure the danger
zone.
• Never step into the danger zone during operation.
2.12.3 Protection against dangerous movements
Unexpected movements
Residual energy in the system may cause serious injuries while
working with the product.
• Switch off the energy supply, ensure that no residual energy
remains and secure against inadvertent reactivation.
• The faulty actuation of conected drives may cause dangerous
movements.
• Operating mistakes, faulty parameterization during commissioning
or software errors may trigger dangerous movements.
• Never rely solely on the response of the monitoring function to
avert danger. Until the installed monitors become effective, it
must be assumed that the drive movement is faulty, with its
action being dependent on the control unit and the current
operating condition of the drive. Perform maintenance work,
modifications, and attachments outside the danger zone
defined by the movement range.
• To avoid accidents and/or material damage, human access to
the movement range of the machine must be restricted. Limit/
prevent accidental access for people in this area due through
technical safety measures. The protective cover and protective
fence must be rigid enough to withstand the maximum possible
movement energy. EMERGENCY STOP switches must be easily
and quickly accessible. Before starting up the machine or
automated system, check that the EMERGENCY STOP system is
working. Prevent operation of the machine if this protective
equipment does not function correctly.

Basic safety notes
2.12.4 Protection against electric shock
Work on electrical equipment
Touching live parts may result in death.
• Work on the electrical equipment may only be carried out by
qualified electricians in accordance with the electrical
engineering regulations.
• Lay electrical cables properly, e. g. in a cable duct or a cable
bridge. Observe standards.
• Before connecting or disconnecting electrical cables, switch off
the power supply and check that the cables are free of voltage.
Secure the power supply against being switched on again.
• Before switching on the product, check that the protective
earth conductor is correctly attached to all electrical
components according to the wiring diagram.
• Check whether covers and protective devices are fitted to
prevent contact with live components.
• Do not touch the product's terminals when the power supply is
switched on.
Possible electrostatic energy
Components or assembly groups may become electrostatically
charged. When the electrostatic charge is touched, the discharge
may trigger a shock reaction leading to injuries.
• The operator must ensure that all components and assembly
groups are included in the local potential equalisation in
accordance with the applicable regulations.
• While paying attention to the actual conditions of the working
environment, the potential equalisation must be implemented
by a specialist electrician according to the applicable
regulations.
• The effectiveness of the potential equalisation must be verified
by executing regular safety measurements.
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Basic safety notes
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2.12.5 Protection against magnetic and electromagnetic fields
Work in areas with magnetic and electromagnetic fields
Magnetic and electromagnetic fields can lead to serious injuries.
• Persons with pace-makers, metal implants, metal shards, or
hearing aids require the consent of a physician before entering
areas in which components of the electric drive and control
systems are mounted, started up, and operated.
• Persons with pace-makers, metal implants, metal shards, or
hearing aids require the consent of a physician before entering
areas in which magnetic grippers or motor parts with
permanent magnets are stored, repaired, or assembled.
• Do not operate high-frequency or radio devices in the proximity
of electric components of the drive system and their feed lines.
If the use of such devices is necessary:
When starting up the electric drive and control system, check
the machine or automated system for possible failures when
such systems are used at different intervals and in different
states of the control system. A special additional EMC test may
be necessary if the system has a high risk potential.

Basic safety notes
2.13 Notes on particular risks
DANGER
Danger from electric voltage!
Touching live parts may result in death.
•Switch off the power supply before any assembly, adjustment
or maintenance work and secure against being switched on
again.
•Only qualified electricians may perform electrical installations.
•Check if de-energized, ground it and hot-wire.
•Cover live parts.
DANGER
Risk of fatal injury from suspended loads!
Falling loads can cause serious injuries and even death.
•Stand clear of suspended loads and do not step within their
swiveling range.
•Never move loads without supervision.
•Do not leave suspended loads unattended.
•Wear suitable protective equipment.
WARNING
Risk of injury from objects falling and being ejected!
Falling and ejected objects during operation can lead to serious
injury or death.
•Take appropriate protective measures to secure the danger
zone.
WARNING
Risk of injury due to unexpected movements!
If the power supply is switched on or residual energy remains in
the system, components can move unexpectedly and cause
serious injuries.
•Before starting any work on the product: Switch off the power
supply and secure against restarting.
•Make sure, that no residual energy remains in the system.
WARNING
Risk of injury from sharp edges and corners!
Sharp edges and corners can cause cuts.
•Use suitable protective equipment.
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Basic safety notes
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WARNING
Risk of burns through contact with hot surfaces!
Surfaces of components can heat up severely during operation.
Skin contact with hot surfaces causes severe burns to the skin.
•For all work in the vicinity of hot surfaces, wear safety gloves.
•Before carrying out any work, make sure that all surfaces have
cooled down to the ambient temperature.
WARNING
Risk of injury from objects falling in the event of an energy
supply failure
In case of an energy supply failure, the gripping force decreases
and a secure hold on the gripped workpiece cannot be
guaranteed.
•Take suitable protective measures to secure the danger zone.