marposs E20N User manual

Manual code No. D2200004UB
Installation Manual
E
20N
GRINDER ACOUSTIC CONTROLLER

2E20NInstallation Manual
This product is in conformity with the EMC requirements as for the directives:
2004/108/CE
This product is intended to operate in industrial locations; it is not intended for connections
to a public mains network but is intended to be connected to a power network supplied from
a high or medium voltage transformer.
This product is in conformity with the “Electrical Safety” requirements as for the directive
73/23/CEE
Electrical safety
The equipment has been manufactured in conformity with EN 61010-1 specifications.
Manufacturer: Marposs S.p.A.
Address: Via Saliceto 13, Bentivoglio (BO) Italia
www.marposs.com
Manual Code: D2200004UB
Issue: September 1995
Edition: (04) January 2006
Iussed by: Marposs S.p.A. , Via Saliceto 13, Bentivoglio (BO) Italia
MARPOSS S.p.A. does not take on the obligation of notifying possible further
changes to the product.
The descriptions reported in this book do not authorize any tampering by non-
authorized personnel.
The warranty on the equipments will decay if such tamperings are found.
© Copyright Marposs S.p.A. 2006
D2200004UB_04.doc (Save Date 20/01/06 15.13)

3
About the Directive 2002/95/EC “RoHS” regulating the presence of certain
hazardous substances in electrical and electronic equipment.
The Member States of the European Community are in the process of completing
the national reception and enforcement of the Directive 2002/95/EC regulating the
presence of certain hazardous substances in electrical and electronic equipment.
The Directive explicitly excludes from its scope of application finished products
such as those manufactured and sold by Marposs. It is still indeed a widely debated
matter whether the complete removal of the regulated substances could affect the
reliability of the product.
Marposs shares in the social responsibility of continuously supporting every form
of innovation that reduces or minimizes any risk of adverse impact on human health
and the environment.
Marposs is therefore voluntarily pursuing the progressive removal of the regulated
substances from our products. Marposs will do so with the clear understanding that
any improvement achieved on the protection of health and the environment should
not come as a compromise for the quality and reliability of our products.
Marposs will put the greatest consideration in any initiative that our Customers
undertake with the purpose of reducing the environmental risk. Our commitment is the
support of their effort developing products that be of the highest quality and reliability.

4E20NInstallation Manual
Preface
The instructions refer to all possible configurations of the MARPOSS E20N so only
the parts relevant to the specific application must be considered.
The code number of the MARPOSS E20N electronic amplifier is indicated on the label
on the back.
The configuration of your MARPOSS E20N amplifier may be determined, on the basis
of the code number, by consulting capter 2.1, "Codification plan" on page 11.
Warning
All servicing or special maintenance operations must be carried out by
authorized personnel.

5
List of documentation
1. Specifications and general warnings.............................................................. 9
1.1 Premise....................................................................................................... 9
1.2 Final test and warranty................................................................................ 9
1.3 Definition of safety notices .......................................................................... 9
1.4 Customer to provide:................................................................................. 10
2. Description of Marposs E20N system ........................................................... 11
2.1 Codification plan........................................................................................ 11
2.2 Dimensions of the electronic unit .............................................................. 13
2.3 Applications............................................................................................... 15
2.3.1 GAP control....................................................................................... 15
2.3.2 CRASH control.................................................................................. 15
2.4 Configuration of the system....................................................................... 16
2.4.1 E20N with one GAP channel............................................................. 17
2.4.2 E20N with one CRASH channel........................................................ 17
2.4.3 E20N with two GAP channels in switching ........................................ 17
2.4.4 E20N with one GAP channel + one CRASH channel........................ 17
2.5 Microphones compatibility......................................................................... 17
3. Connections to the electronic unit ................................................................ 18
3.1 General connections (rear view) ............................................................... 18
3.2 Connection to the machine logic ............................................................... 20
3.2.1 Input signals ...................................................................................... 20
3.2.2 Output commands............................................................................. 21
3.2.3 Connection diagram for 1 GAP Channel ........................................... 23
3.2.4 Connection diagram for 1 CRASH Channel ...................................... 24
3.2.5 Connection diagram for two switching GAP channels ....................... 25
3.2.6 Connection diagram for one GAP channel + one CRASH channel ... 26
3.2.7 GAP control cycle.............................................................................. 27
3.2.8 CRASH control cycle......................................................................... 28
3.3 Connection to EGC - Analog output function............................................. 30
4. Installation of the microphone....................................................................... 31
4.1 Fixed microphone...................................................................................... 32
4.2 Microphone with contactless transmission ................................................ 33
5. Use and programming.................................................................................... 34

6E20NInstallation Manual
5.1 Front Panel ............................................................................................... 35
5.2 GAP control programming......................................................................... 36
5.2.1 Stable and repetitive background noise ............................................ 37
5.2.2 Variable and oscillating background noise ........................................ 38
5.2.3 EGC Function - Analog Output.......................................................... 39
5.3 CRASH control programming.................................................................... 40
5.3.1 Programming procedure.................................................................... 40
6. Internal Programming..................................................................................... 41
6.1 Selection of the type of microphone .......................................................... 42
6.2 Selection of the frequency range............................................................... 43
6.2.1 Definition of the frequency range ...................................................... 43
6.3 Alarms programming................................................................................. 45
7. Troubleshooting and Maintenance................................................................ 46
7.1 Alarm conditions........................................................................................ 46
7.2 Replacement of the protection fuse........................................................... 47
7.3 Microphones protection fuses ................................................................... 48
7.3.1 Substituting microphone fuses .......................................................... 48
7.3.2 Resetting operation with resettable fuses.......................................... 49
8. Technical Data................................................................................................. 50
8.1 Electrical power supply.............................................................................. 50
8.2 Operation characteristics .......................................................................... 50
8.3 Environment characteristics ...................................................................... 50

7
List of drawing
Figure 1. Overall dimensions of E20N with rack 19” assembly ................................. 13
Figure 2. Overall dimensions of E20N with stand alone case (IP54)......................... 13
Figure 3. Overall dimensions of E20N with remote panel ......................................... 14
Figure 4. Connections to the electronic unit (rear view) ............................................ 18
Figure 5. Connection diagram for 1 GAP Channel.................................................... 23
Figure 6. Connection diagram for 1 CRASH Channel ............................................... 24
Figure 7. Connection diagram for two switching GAP channels................................ 25
Figure 8. Connection diagram for 1 GAP channel + 1 CRASH channel.................... 26
Figure 9. Time chart of the signals for GAP control cycle ......................................... 27
Figure 10. Time chart of the signals for CRASH control cycle .................................. 28
Figure 11. Connection to EGC - Analog output function ........................................... 30
Figure 12. Installation of fixed microphone................................................................ 32
Figure 13. Installation of microphone with contactless transmission ......................... 33
Figure 14. E20N internal programming ..................................................................... 41
Figure 15. Replacement of the protection fuse ......................................................... 47
Figure 16. Replacement of the microphone protection fuses .................................... 48
Figure 17. Sheet for amplifier with resettable fuses .................................................. 49

Specifications and general warnings 9
1. SPECIFICATIONS AND GENERAL WARNINGS
1.1 Premise
This instruction manual supplies all the specific information necessary to know and
correctly use your MARPOSS equipment.
The descriptions reported in this manual are aimed to the following personnel:
•MARPOSS personnel or Customer's personnel who has to install the equipment;
•Customer's technicians who directly operate the MARPOSS equipment;
•Customer's technicians who are responsible of the maintenance of the production
line where the MARPOSS equipment is installed.
All rights are reserved. This manual is intended for Customer's internal use
only. Any other use is forbidden.
1.2 Final test and warranty
The defects of the materials are covered by the warranty with the following limitations:
•DURATION OF THE WARRANTY: the warranty covers all repairs made within
the agreed terms
•OBJECT OF THE WARRANTY: the warranty is applied to the product and to its
parts marked with serial number or other identification number by MARPOSS.
The above mentioned warranty has to be considered valid, unless of different
agreements between MARPOSS and the Customer.
1.3 Definition of safety notices
There are two types of notices: Warning and Attention
Warning
This note indicates the possibility to damage the electronic unit and other
devices connected to it, or the possibility to loose data.
Attention
This note indicates dangerous conditions for the operator/technician.

10 E20NInstallation Manual
1.4 Customer to provide:
The Customer must provide the following connections:
•power supply according to the data reported on the equipment plate;
•connection to the machine logic according to the indications of chapter 3.2, on
page 20.