Siemens SIWAREX JB Compact Operating Instructions
SIWAREX JB stainless steel with ATEX
certificate
_
_________________
_
_
_________________
_
_
_________________
_
_
_________________
_
_
_________________
_
_
__________________
_
_________________
_
_
_________________
_
Weighing systems
SIWAREX JB stainless steel
with ATEX certificate
Compact Operating Instructions
06/2010
A5E01257284C-01
Introduction
1
Notes on handling the
product
2
Description
3
Application planning
4
Installing and connecting
5
Technical data
6
Ordering data
7
Appendix
A
Legal information
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the corresponding information is not taken into
account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation for the specific task, in particular its warning notices and
safety instructions. Qualified personnel are those who, based on their training and experience, are capable of
identifying risks and avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be adhered to. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of the Siemens AG. The remaining trademarks in this
publication may be trademarks whose use by third parties for their own purposes could violate the rights of the
owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E01257284C-01
Ⓟ 07/2010
Copyright © Siemens AG 2010.
Technical data subject to change
SIWAREX JB stainless steel with ATEX certificate
Compact Operating Instructions, 06/2010, A5E01257284C-01
3
Table of contents
1 Introduction................................................................................................................................................ 4
1.1 Purpose of this documentation ......................................................................................................4
1.2 History............................................................................................................................................4
1.3 Trademarks....................................................................................................................................4
1.4 Environmental protection ...............................................................................................................4
2 Notes on handling
t
he product................................................................................................................... 5
3 Description................................................................................................................................................. 7
3.1 Applications....................................................................................................................................7
3.2 Properties.......................................................................................................................................8
3.3 Design............................................................................................................................................8
4 Application pl
anning
................................................................................................................................. 10
4.1 Alternative EMC ca
ble glands......................................................................................................10
4.2 Selection of suitable cables ..................................................................................................
.......10
5 Installing and connecting
......................................................................................................................... 12
5.1 Qualified personnel ......................................................................................................................12
5.2 Mounting ......................................................................................................................................12
5.3 Connecting principle ....................................................................................................................13
5.4 Connection...................................................................................................................................15
5.4.1 Installing the EMC cable glands
and the screw plugs .................................................................15
5.4.2 Connecting the shielding..............................................................................................................16
5.4.3 Installing the spring-loaded terminal block in the enclosure........................................................16
5.4.4 Connecting spring-loaded t
e
rminals ............................................................................................17
5.4.5 Screwing on the cover .................................................................................................................18
6 Technical
data ................................................................................................................
......................... 19
6.1 Ambient conditions.......................................................................................................................19
6.2 Mechanical and electrical data.....................................................................................................19
6.3 Explosion protection.....................................................................................................................20
6.4 Electromagnetic compatibility ......................................................................................................20
6.5 Dimension drawing ......................................................................................................................21
7 Ordering dat
a
........................................................................................................................................... 22
7.1 Order no.......................................................................................................................................22
7.2 Accessories..................................................................................................................................22
A Appendix.................................................................................................................................................. 23
A.1 Technical support
.............................................................................................................
............23
SIWAREX JB stainless steel with ATEX certificate
4 Compact Operating Instructions, 06/2010, A5E01257284C-01
Introduction
1
1.1 Purpose of this documentation
These instructions contain all the information you need for commissioning and using the
device.
They are directed at persons who mechanically assemble, connect, start up, and use the
device.
1.2 History
The following versions of this documentation have been released to date. The changes apply
to the previous version:
Edition Comment / change
06/2010 Initial release
1.3 Trademarks
SIWAREX ® is a registered trademark of Siemens AG.
All other names appearing in these instructions may be trademarks whose use by third
parties for their own purposes may infringe upon owners rights.
1.4 Environmental protection
Devices described in this programming manual can be recycled owing to the low content of
noxious substances in their version. Please contact a certified waste disposal company for
eco-friendly recycling and to dispose of your old devices.
SIWAREX JB stainless steel with ATEX certificate
Compact Operating Instructions, 06/2010, A5E01257284C-01
5
Notes on handling the product
2
Proper usage
Proper usage means that this product must only be used within the scope of the technical
specifications and intended purposes of these operating instructions.
If this device is used properly in compliance with the safety notices, this device will not
present any danger.
This device can only function correctly and safely if it is transported, stored, set up and
mounted correctly.
Correct operation of the device must be ensured by complying with the technical
specifications.
Improper handling can result in death, personal injury or property damage.
Notes on liability for defects
We expressly point out that the product quality is exclusively and conclusively described in
the sales contract. The content of this product documentation is neither part of a previous or
existing agreement, promise or legal relationship, nor is it intended to modify these. All
obligations on the part of Siemens AG are contained in the respective sales contract, which
also contains the complete and solely applicable liability provisions. The provisions defined
in the sales contract for the responsibility for defects are neither extended nor limited by the
remarks in this document.
Delivery information
The current scope of delivery is listed on the shipping documents enclosed with the delivery
in accordance with the valid sales contract.
When opening the packaging, please observe the relevant information. Check the delivery
for completeness and undamaged condition. In particular, the order number on the rating
plate must be compared to the ordering data.
Before you start work, please read these operating instructions. They contain important
information and data whose observation ensures the general safety and functionality of this
device. The manual will help you to handle this product more easily and efficiently, allowing
you to achieve reliable measuring results.
Notes on handling the product
SIWAREX JB stainless steel with ATEX certificate
6 Compact Operating Instructions, 06/2010, A5E01257284C-01
Qualified personnel
In the context of this documentation, qualified personnel are people who are familiar with the
installation, mounting, commissioning, and operation of the product.
These people must have the following qualifications:
● They must be trained, instructed and authorized to operate and maintain devices and
systems in accordance with their place of work and in compliance with the safety
engineering standards for
– Electrical circuits
– High pressures
– Corrosive and hazardous media
● They must be trained, instructed and authorized to maintain and use appropriate safety
equipment according to the standards for safety engineering.
● In the case of devices with explosion protection, qualified persons must be trained,
instructed and authorized to perform work on electrical circuits in plants subject to
explosion hazards.
Important notes on connecting
WARNING
Electric shock
The SIWAREX JB junction box must only be used with extra-low voltages ≤ 30 V.
Important notes on cleaning
CAUTION
Malfunction
Do not subject the junction box directly to the jet from a high-pressure cleaner.
Explosion protection
WARNING
Danger of explosion
Observe the test certificates, provisions and laws applicable in your country during
connection, assembly and operation. For hazardous areas, these are for example:
• IEC 60079-14 (international)
• EN 60079-14 (previously VDE0165, T1) (EU, Germany)
• The operational safety directive (Germany)
All work undertaken on electrical circuits in hazardous areas must only be performed by
skilled personnel.
SIWAREX JB stainless steel with ATEX certificate
Compact Operating Instructions, 06/2010, A5E01257284C-01
7
Description
3
3.1 Applications
Field of application
The stainless steel SIWAREX JB junction box is used in weighing systems with extra-low
voltages ≤ 30 V.
The junction box can connect up to four load cells to the weighing module at the same time.
Operating principle
Load cells with 4-wire and 6-wire strain gauges can be connected.
The cable connection from the junction box to the weighing module is implemented with a 6-
wire cable.
LC
LCLC
LC
LC
JB W
6
4/6
LC
LCLC
LC
LC
JB W
6
4/6
LC Load cell
JB SIWAREX JB junction box
W Weighing module
Figure 3-1 Principle of application
Description
3.2 Properties
SIWAREX JB stainless steel with ATEX certificate
8 Compact Operating Instructions, 06/2010, A5E01257284C-01
3.2 Properties
The SIWAREX JB junction box has the following properties:
● It consists of stainless, acid-resistant steel 1.4301.
● It is protected against dust and jet water according to protection class IP66.
● The junction box is maintenance-free.
● The cables are fed into the junction box via EMC cable glands.
– The cable glands are made of nickel-plated brass.
– Unneeded openings for cable glands are sealed with a cap screw.
● Electromagnetic compatibility:
Installing the shield in the cable glands provides a high degree of protection against
interference.
3.3 Design
SIWAREX JB stainless steel with ATEX certificate
① Cover
② Screw for cover (4x)
③ Rear side with nameplate and ATEX plate
④ Lower part
⑤ Support for mounting
⑥ EMC cable gland
Figure 3-2 Design
Loading...