SCHUNK EGM Series User instructions

Original Operating Manual
Assembly and Operating Manual
EGM
Electric permanent magnet gripper

Imprint
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01.00 | EGM | Assembly and Operating Manual | en | 389539
Imprint
Copyright:
This manual is protected by copyright. The author is SCHUNK GmbH & Co. KG. All rights
reserved. Any reproduction, processing, distribution (making available to third parties),
translation or other usage - even excerpts - of the manual is especially prohibited and
requires our written approval.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 389539
Version: 01.00|22/08/2019|en
© SCHUNK GmbH & Co. KG
All rights reserved.
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
SCHUNK GmbH & Co. KG
Spann- und Greiftechnik
Bahnhofstr. 106 – 134
D-74348 Lauffen/Neckar
Tel. [phone]
Fax [phone]
[email protected]
schunk.com

Table of Contents
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Table of Contents
1 General.................................................................................................................... 5
1.1 About this manual ................................................................................................ 5
1.1.1 Presentation of Warning Labels ...............................................................5
1.1.2 Definition of Terms...................................................................................6
1.1.3 Applicable documents ..............................................................................6
1.1.4 Sizes ..........................................................................................................6
1.2 Warranty .............................................................................................................. 6
1.3 Scope of delivery .................................................................................................. 7
1.4 Accessories ........................................................................................................... 7
2 Basic safety notes ................................................................................................... 8
2.1 Appropriate use.................................................................................................... 8
2.2 Not intended use.................................................................................................. 8
2.3 Constructional changes ........................................................................................ 8
2.4 Spare parts ........................................................................................................... 8
2.5 Ambient conditions and operating conditions .....................................................9
2.6 Personnel qualification......................................................................................... 9
2.7 Personal protective equipment.......................................................................... 10
2.8 Notes on safe operation .....................................................................................10
2.9 Transport ............................................................................................................ 10
2.10 Malfunctions....................................................................................................... 11
2.11 Disposal .............................................................................................................. 11
2.12 Fundamental dangers......................................................................................... 11
2.12.1 Protection during handling and assembly ..............................................11
2.12.2 Protection during commissioning and operation ...................................12
2.12.3 Protection against dangerous movements.............................................12
2.12.4 Protection against electric shock............................................................13
2.12.5 Protection against magnetic and electromagnetic fields .......................13
3 Technical data.........................................................................................................15
3.1 Type key.............................................................................................................. 15
3.2 Name plate ......................................................................................................... 16
3.3 Basis data EGM M-Q........................................................................................... 17
3.4 Basic data EGM M-L............................................................................................ 18
3.5 Basic data EGM B-Q............................................................................................ 19
3.6 Basic data EGM B-L............................................................................................. 21
3.7 Connection cable characteristics........................................................................ 22
3.8 Pole extension characteristics (optional) ........................................................... 22

Table of Contents
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4 Design and description............................................................................................23
4.1 Structure............................................................................................................. 23
4.2 Description ......................................................................................................... 24
4.3 Magnetic suitability of the workpiece material.................................................. 25
4.4 Factors influencing the holding force ................................................................. 26
5 Assembly ................................................................................................................27
5.1 Installing and connecting.................................................................................... 27
5.2 Connections........................................................................................................ 27
5.2.1 Mechanical connection...........................................................................27
5.2.2 Electrical connection ..............................................................................30
5.3 Using the distributor box (optional) ................................................................... 33
5.4 Installing the pole extension (optional).............................................................. 35
6 Commissioning .......................................................................................................37
6.1 General instructions on commissioning ............................................................. 38
6.2 Operation with controller ECG-C or ECG-W .......................................................39
6.3 Operation with controller ECG-R........................................................................ 40
7 Trouble shooting.....................................................................................................41
7.1 Product remains inoperable even after the power supply is turned on ............41
7.2 Workpiece is detached from the product .......................................................... 41
7.3 Demagnetization was not performed correctly. ................................................ 41
8 Maintenance ..........................................................................................................42
8.1 Maintenance intervals........................................................................................ 42
8.2 Check and repair the product............................................................................. 42
9 EU Declaration of Conformity .................................................................................43
10 Translation of original declaration of incorporation ................................................44
11 Annex to Declaration of Incorporation....................................................................45

General
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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
Applicable documents [}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.

General
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1.1.2 Definition of Terms
The term "product" replaces the product name on the title page in
this manual.
1.1.3 Applicable documents
• General terms of business *
• Catalog data sheet of the purchased product *
• Assembly and Operating Manual Controller ECG*
The documents marked with an asterisk (*) can be downloaded on
our homepage schunk.com
1.1.4 Sizes
This operating manual applies to the following sizes:
• EGM M-Q 30-1
• EGM M-Q 50-1
• EGM M-Q 70-1
• EGM M-L 08-1
• EGM M-L 15-1
• EGM M-L 30-1
• EGM B-Q 50-1x2
• EGM B-Q 50-1x4
• EGM B-Q 50-2x2
• EGM B-Q 70-1x2
• EGM B-Q 70-1x4
• EGM B-Q 70-2x2
• EGM B-L 30-1x2
• EGM B-L 30-1x4
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:
• Observance of the applicable documents
• Observance of the ambient conditions and operating conditions
Parts touching the workpiece and wear parts are not included in
the warranty.

General
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1.3 Scope of delivery
The scope of delivery includes
• Electric permanent magnetic gripper EGM in the version
ordered
1.4 Accessories
The following accessories, which must be ordered separately, are
required for the product:
• Controller ECG
• Power cable
The following accessories are available for the product, which
must be ordered separately:
• Manual operating unit
• Pole extension
• Distributor box
• Gauss meter
For information regarding which accessory articles can be used
with the corresponding product variants, see catalog data sheet.

Basic safety notes
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2 Basic safety notes
2.1 Appropriate use
The product was designed to safely hold ferromagnetic
workpieces.
• The product may only be used within the scope of its technical
data, Technical data [}15].
• The product is intended for industrial and industry-oriented use.
• The product is intended for installation in a machine/system.
The applicable guidelines must be observed and complied with.
• When implementing and operating components in safety-
related parts of the control systems, the basic safety principles
in accordance with DIN EN ISO 13849-2 apply. The proven safety
principles in accordance with DIN EN ISO 13849-2 also apply to
categories 1, 2, 3 and 4.
• Appropriate use of the product includes compliance with all
instructions in this manual.
2.2 Not intended use
• Any utilization that exceeds or differs from the appropriate use
is regarded as misuse.
2.3 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.
2.4 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
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2.5 Ambient conditions 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.
• Make sure that the product is used only in the context of its
defined application parameters, Technical data [}15].
• Make sure that the product is a sufficient size for the
application.
• Make sure that the environment is free from splash water and
vapors as well as from abrasion or processing dust. Exceptions
are products that are designed especially for contaminated
environments.
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.

Basic safety notes
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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.
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.

Basic safety notes
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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.
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 installations.
• Install the provided protective product in the danger zone
before switching on the product.
• Remove the energy supplies before installation, modification,
maintenance, or adjustment work. Ensure there is no residual
energy in the system.
• Do not move parts by hand while the energy supply is
connected.
• Do not reach into the 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.

Basic safety notes
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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.
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
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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.
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.

Basic safety notes
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• 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.

Technical data
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3 Technical data
3.1 Type key
EGM - M - Q - 8 - 1 - FX
Magnet type
M = monopole B = bipole (with thread for pole extension)
Pole form
8 mm wide 15 mm wide 30 mm wide
Pole width
Q = square L = oblong
Number of poles, pole arrangement
1 = one pole 1 x 2 = one row, two poles
Electrical interface
FX = fixed cable outlet (30 cm cable) - = connector on EGM
32 mm wide 50 mm wide 70 mm wide
1 x 4 = one row, four poles 2 x 2 = two rows, two poles

Technical data
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3.2 Name plate
The name plate is located on the side of the controller cover:
Name plate
Information Description
ID No. SCHUNK ID no.
Serial no. Serial no. of the EGM
Work no. Order no. of the production
Resistance Rated resistance EGM
Voltage Rated voltage (mains)
Frequency Rated frequency (mains)
Current Rated current (mains)
Year Year of manufacture
Weight weight
Do not remove the name plate. When consulting with SCHUNK,
always specify serial and ID numbers.

Technical data
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3.3 Basis data EGM M-Q
Designation EGM M-Q
30-1-FX 50-1-FX 70-1-FX
Dimension ØD x Z [mm] 58x60 98x65 129.5x75
Cable length [cm] 30 30 30
Weight [kg] 1.3 3.45 7.1
Magnetic surface [cm2] 18.4 50.4 98.1
Number of poles 2
Load capacity* for horizontal
magnetic surface[kg]
18 80 165
Load capacity* for vertical
magnetic surface[kg]
7 32 65
Minimum workpiece thickness [mm] 6 12 16
Max. activations/minute [RPM] 20 6 10
Increased product temperature**
at 5/15 activations per minute [°C]
13 / 33 37 / 80 24 / 53
Current input on activation/
deactivation [A]
3 2.3 3.1
Max. permissible product
temperature [°C]
+80
Ambient temperature [°C]
Min.
Max.
+5
+50
Air humidity [%]
Min.
Max.
30
80
Noise emission [dB(A)] ≤ 70
IP protection class 54
Permissible controller variant ECG-C,
ECG-W
ECG-C, ECG-W,
ECG-R
Permissible controller size ECG 01 ECG 02 ECG 02
Max. number EGM per controller 28 26 19
* Full load capacity can only be reached under ideal conditions
(material, workpiece density, surface, etc.). In case of
questions on dimensioning of load capacity, contact SCHUNK.
** Increased product temperature tested on material1.0037
with 20mm workpiece thickness, ground surface and
complete coverage of the magnetic surface.

Technical data
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3.4 Basic data EGM M-L
Designation EGM M-L
08-1-FX 15-1-FX 30-1-FX
Dimension X x Y x Z [mm] 98 x
56x58
105 x
47x79
96 x
66x71
Cable length [cm] 30 30 30
Weight [kg] 1 2.1 3.1
Magnetic surface [cm2] 12 22.5 36.9
Number of poles 2
Load capacity* for horizontal
magnetic surface[kg]
10 22 60
Load capacity* for vertical
magnetic surface[kg]
4 9 24
Minimum workpiece thickness [mm] 3 5 10
Max. activations/minute [RPM] 16 16 12
Increased product temperature**
at 5/15 activations per minute [°C]
18/39 15/40 22/49
Current input on activation/
deactivation [A]
3.7 2.6 2.2
Max. permissible product
temperature [°C]
+80
Ambient temperature [°C]
Min.
Max.
+5
+50
Air humidity [%]
Min.
Max.
30
80
Noise emission [dB(A)] ≤ 70
IP protection class 54
Permissible controller variant ECG-C,
ECG-W
ECG-C, ECG-W,
ECG-R
Permissible controller size ECG 01 ECG 02 ECG 02
Max. number EGM per controller 23 17 32
* Full load capacity can only be reached under ideal conditions
(material, workpiece density, surface, etc.). In case of
questions on dimensioning of load capacity, contact SCHUNK.
** Increased product temperature tested on material1.0037
with 20mm workpiece thickness, ground surface and
complete coverage of the magnetic surface.

Technical data
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3.5 Basic data EGM B-Q
Designation EGM B-Q
50-1x2 50-1x4 50-2x2
Dimension X x Y x Z [mm] 170 x
95x61
290 x
95x61
170 x
150x61
Weight [kg] 5.5 13 8.5
Magnetic surface [cm2] 50 100
Number of poles 2 4
Load capacity* for horizontal
magnetic surface[kg]
75 175
Load capacity* for vertical
magnetic surface[kg]
30 70
Minimum workpiece thickness [mm] 12 14
Max. activations/minute [RPM] 20 8
Increased product temperature**
at 5/15 activations per minute [°C]
12/30 30/68
Current input on activation/
deactivation [A]
2.9 9.5
Max. permissible product
temperature [°C]
+80
Ambient temperature [°C]
Min.
Max.
+5
+50
Air humidity [%]
Min.
Max.
30
80
Noise emission [dB(A)] ≤ 70
IP protection class 54
Permissible controller variant ECG-C, ECG-W, ECG-R
Permissible controller size ECG 02
Max. number EGM per controller 25 7

Technical data
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Designation EGM B-Q
70-1x2 70-1x4 70-2x2
Dimension X x Y x Z [mm] 210 x
115x61
370 x
115x61
210 x
195x61
Weight [kg] 9 25 15
Magnetic surface [cm2] 98 196
Number of poles 2 4
Load capacity* for horizontal
magnetic surface[kg]
120 296 290
Load capacity* for vertical
magnetic surface[kg]
48 118 115
Minimum workpiece thickness [mm] 14 18
Max. activations/minute [RPM] 15 10
Increased product temperature**
at 5/15 activations per minute [°C]
15/40 24/60
Current input on activation/
deactivation [A]
6.4 12.3
Max. permissible product
temperature [°C]
+80
Ambient temperature [°C]
Min.
Max.
+5
+50
Air humidity [%]
Min.
Max.
30
80
Noise emission [dB(A)] ≤ 70
IP protection class 54
Permissible controller variant ECG-C, ECG-W, ECG-R
Permissible controller size ECG 02
Max. number EGM per controller 9 4 5
* Full load capacity can only be reached under ideal conditions
(material, workpiece density, surface, etc.). In case of
questions on dimensioning of load capacity, contact SCHUNK.
** Increased product temperature tested on material1.0037
with 20mm workpiece thickness, ground surface and
complete coverage of the magnetic surface.