Hubner EGS 2 Product guide

English
Translation of the original operating and assembly instructions EGS2_MANUAL-en_R3(2018-11-14)ID74563.docx
ID 74563
Operating and Assembly Instructions
Electronic overspeed switch EGS 2
Straightforward monitoring of overspeed or zero speed detection
Read the Operating and Assembly Instructions prior to
assembly, starting installation and handling!
Keep for future reference!

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Trademark
Protected trademarks bearing a ™ or ® symbol are not always depicted as such in the manual.
However, the statutory rights of the respective owners remain unaffected.
Manufacturer / publisher
Johannes Hubner
Fabrik elektrischer Maschinen GmbH
Siemensstraße 7
35394 Giessen
Germany
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
www.huebner-giessen.com
The manual has been drawn up with the utmost care and attention. Nevertheless, we cannot exclude
the possibility of errors in form and content. It is strictly forbidden to reproduce this publication or parts
of this publication in any form or by any means without the prior written permission of Johannes
Hubner Fabrik elektrischer Maschinen GmbH.
Subject to errors and changes due to technical improvements.
Copyright © Johannes Hubner
Fabrik elektrischer Maschinen GmbH
All rights reserved.

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Directory
1General............................................................................................................................ 5
1.1 Information about the Operating and Assembly Instructions....................................... 5
1.2 Scope of delivery ....................................................................................................... 5
1.3 Explanation of symbols.............................................................................................. 5
1.4 Disclaimer.................................................................................................................. 6
1.5 Copyright ................................................................................................................... 6
1.6 Guarantee terms........................................................................................................ 6
1.7 Customer service....................................................................................................... 6
2Safety............................................................................................................................... 6
2.1 Responsibility of the owner ........................................................................................ 6
2.2 Personnel................................................................................................................... 6
2.3 Intended use.............................................................................................................. 7
2.4 Improper use.............................................................................................................. 7
2.5 Personal protective equipment................................................................................... 7
2.6 Special dangers......................................................................................................... 8
2.6.1 Electrical current.................................................................................................... 8
2.6.2 Rotating shafts / hot surfaces................................................................................ 8
2.6.3 Safeguarding against restart.................................................................................. 8
3Technical Data ................................................................................................................ 9
3.1 Type plate.................................................................................................................. 9
3.2 Type code.................................................................................................................10
3.3 Electrical and mechanical data..................................................................................10
4Overspeed monitoring...................................................................................................11
5Zero speed monitoring..................................................................................................11
6Transport, packaging and storage ...............................................................................12
6.1 Safety instructions for transport.................................................................................12
6.2 Goods inward inspection...........................................................................................12
6.3 Packaging / disposal.................................................................................................12
6.4 Storage of packages (devices)..................................................................................12
7Installation and commissioning....................................................................................13
7.1 Safety instructions.....................................................................................................13
7.2 Technical information................................................................................................13
7.3 Required tools...........................................................................................................13
7.4 Mounting preparations ..............................................................................................14
7.5 Mounting the encoder ...............................................................................................14
7.6 Mounting tolerances..................................................................................................16
7.7 Electrical connection and start up..............................................................................17
7.7.1 Preparing cables ..................................................................................................17
7.7.2 Electrical connection.............................................................................................17

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8Dismantling....................................................................................................................18
8.1 Safety instructions.....................................................................................................18
8.2 Dismantling the encoder ...........................................................................................18
9Faults..............................................................................................................................19
9.1 Faults table...............................................................................................................19
10Inspections.....................................................................................................................20
10.1 Safety instructions.....................................................................................................20
10.2 Maintenance information...........................................................................................20
10.3 Inspection schedule ..................................................................................................20
11Disposal..........................................................................................................................20
11.1 Disposal procedure...................................................................................................20
12Replacement parts.........................................................................................................20
13Dimension drawings......................................................................................................21
14Connection diagrams ....................................................................................................23
14.1 Terminal box.............................................................................................................23
14.2 Connection cable......................................................................................................23

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1General
1.1 Information about the Operating and Assembly Instructions
These Operating and Assembly Instructions provide important instructions for working with the device.
They must be carefully read prior to starting all tasks, and the instructions contained herein must be
followed.
In addition, applicable local regulations for the prevention of industrial accidents and general safety
regulations must be complied with.
1.2 Scope of delivery
Electronic overspeed switch EGS 2, Operating and Assembly Instructions.
1.3 Explanation of symbols
Warnings are indicated by symbols in these Operating and Assembly Instructions. The warnings are
introduced by signal words that express the scope of the hazard.
The warnings must be strictly heeded; you must act prudently to prevent accidents, personal injury, and
property damage.
WARNING!
Indicates a possibly dangerous situation that can result in death or serious injury if it is not
avoided.
CAUTION!
Indicates a possibly dangerous situation that can result in minor injury if it is not
avoided.
CAUTION!
Indicates a possibly dangerous situation that can result in material damage if it is not
avoided.
NOTES!
Indicates useful tips and recommendations as well as information for efficient and trouble-
free operation.
NOTES!
Do not use a hammer or similar tool when installing the device due to the risk of damage
occurring to the bearings or coupling!
DANGER!
Life-threatening danger due to electric shock!
Indicates a life-threatening situation due to electric shock. If the safety instructions are not
complied with there is danger of serious injury or death. The work that must be executed
should only be performed by a qualified electrician.

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1.4 Disclaimer
All information and instructions in these Operating and Assembly Instructions have been provided under
due consideration of applicable guidelines, as well as our many years of experience.
The manufacturer assumes no liability for damages due to:
Failure to follow the instructions in the Operating and Assembly Instructions
Non-intended use
Deployment of untrained personnel
Opening of the device or conversions of the device
In all other aspects the obligations agreed in the delivery contract as well as the delivery conditions of
the manufacturer apply.
1.5 Copyright
NOTES!
Content information, text, drawings, graphics, and other representations are protected
by copyright and are subject to commercial property rights.
It is strictly forbidden to make copies of any kind or by any means for any purpose other
than in conjunction with using the device without the prior written agreement of the
manufacturer. Any copyright infringements will be prosecuted.
1.6 Guarantee terms
The guarantee terms are provided in the manufacturer’s terms and conditions.
1.7 Customer service
For technical information personnel is available that can be contacted by telephone, fax or email. See
manufacturer’s address on page 2.
2Safety
DANGER!
This section provides an overview of all the important safety aspects that ensure
protection of personnel, as well as safe and trouble-free device operation.
If these safety instructions are not complied with significant hazard can occur.
2.1 Responsibility of the owner
The device is used in commercial applications. Consequently the owner of the device is subject to the
legal occupational safety obligations and subject to the safety, accident prevention and environmental
protection regulations that are applicable for the device’s area of implementation.
2.2 Personnel
Installation and commissioning as well as disassembly routines must be carried out by skilled technical
staff only.

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2.3 Intended use
The device has been designed and constructed exclusively for the intended use described here.
Series EGS 2 electronic overspeed switches are used for speed monitoring, for instance of electrical
and mechanical drives, hoisting gear, and conveying machines.
The electronic overspeed switch EGS 2 is a overspeed switch, which generates a switching signal for
a superior control system. This is realized with opening of a switch contact. As an alternative to this
function, the device can also be used for zero speed detection. Not in addition.
Claims of any type due to damage arising from non-intended use are excluded; the owner bears sole
responsibility for non-intended use.
2.4 Improper use
Do not use the device in potentially explosive areas.
The device must not be subjected to mechanical loads in addition to its own weight and unavoidable
vibration and shock loads that arise during normal operations.
Examples for non-permitted mechanical loads (incomplete list):
Fastening transport or lifting tackle to the device, for example a crane hook to lift a motor.
Fastening packaging components to the device, for example ratchet straps, tarpaulins etc.
Using the device as a step, for example by people to climb onto a motor.
2.5 Personal protective equipment
For tasks such as assembly, disassembly or commissioning the use of personal protective equipment
such as safety footwear and protective work clothing is required.
The regulations specified by the owner and that are locally specified apply.

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2.6 Special dangers
Residual risks that have been determined based on a risk assessment are cited below.
2.6.1 Electrical current
DANGER!
Life-threatening danger due to electrical shock!
There is an imminent life-threatening hazard if live parts are touched. Damage to
insulation or to specific components can pose a life-threatening hazard.
Therefore:
Immediately switch off the device and have it repaired if there is damage to the insulation
of the power supply.
De-energize the electrical equipment and ensure that all components are connected for
all tasks on the electrical equipment.
Keep moisture away from live parts. Moisture can cause short circuits.
2.6.2 Rotating shafts / hot surfaces
WARNING!
Danger of injury due to rotating shafts and hot surfaces!
Touching rotating shafts can cause serious injuries.
Therefore:
Do not reach into moving parts/shafts or handle moving parts/shafts during operation.
Close to protect from injury all access openings in flanges with the corresponding plug
screw, and provided you exposed rotating components with protective covers.
Do not open covers during operation. Prior to opening the covers ensure that all parts
have come to a zero speed.
The encoder can become hot during prolonged use.
In case of contact risk of burns is existing.
2.6.3 Safeguarding against restart
DANGER!
Life-threatening danger if restarted without authorization!
When correcting faults there is danger of the power supply being switched on without
authorization.
This poses a life-threatening hazard for persons in the danger zone.
Therefore:
Prior to starting work, switch off the system and safeguard it from being switched on again.

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3Technical Data
3.1 Type plate
Type plate example:
The type plate is located on the outside of the housing and contains the following information:
Englisch
Deutsch
Manufacturer, address
Hersteller, Anschrift
Type: Overspeed switch
Typ: Grenzdrehzahlschalter
Year of manufacture
Baujahr
CE mark
CE-Kennzeichnung
Serial number (S/N)
Seriennummer (S/N)
Item (ID)
Artikel (ID)
Degree of protection
Schutzart
Supply voltage
Versorgungsspannung
Max. speed
Max. Drehzahl
Switching speed
Schaltdrehzahl
Switching voltage / switching current
Schaltspannung / Schaltstrom

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3.2 Type code
EGS
2
AK
Electronic overspeed switch
Series
Connection
AK = Axial terminal box
3.3 Electrical and mechanical data
Connection data
Supply voltage
12 V … 30 V DC
No load-current
approx. 50 mA at 24 V
Connection
Spring-cage terminal strip type Phoenix ZFKDS 1,5-W-5,08
(0,25 mm² - 1,5 mm²)
Gerätetemperaturbereich
-25°C … + 85°C
Degree of protection acc.DIN EN
60529
Sealing
Rotor moment of
inertia
Breakaway
torque
IP 66
with radial shaft seal
approx. 100 gcm²
approx. 3 Ncm
Vibration resistance
DIN EN 60068-2-6 / IEC 68-2-6 (10 … 2000 Hz)
20 g (=200 m/s²)
Shock resistance
DIN EN 60068-2-27 / IEC 68-2-27 (6 ms)
200 g (=2000 m/s²)
Max. encoder shaft load
Fa, max. (axial) = 100 N
Fr, max. (radial) = 120 N
Max. speed:
AK solid shaft
7000 rpm
Shaft dimensions
11j6 x 30 mm
Weight
approx. 2 kg