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Siemens SIWAREX JB Compact Operating Instructions
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Siemens SIWAREX JB Compact Operating Instructions

Siemens SIWAREX JB Compact Operating Instructions

Stainless steel with atex certificate
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Download this manual See also: Instruction Manual
SIWAREX JB stainless steel with ATEX

certificate

Weighing systems
SIWAREX JB stainless steel
with ATEX certificate
Compact Operating Instructions
06/2010
A5E01257284C-01
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Introduction
Notes on handling the
___________________
product
___________________
Description
___________________
Application planning
___________________
Installing and connecting
___________________
Technical data
___________________
Ordering data
___________________
Appendix
1
2
3
4
5
6
7
A

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Summary of Contents for Siemens SIWAREX JB

  • Page 1 ___________________ SIWAREX JB stainless steel with ATEX Introduction certificate Notes on handling the ___________________ product ___________________ Description Weighing systems ___________________ Application planning ___________________ SIWAREX JB stainless steel Installing and connecting with ATEX certificate ___________________ Technical data Compact Operating Instructions ___________________...
  • Page 2 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.

  • Page 3: Table Of Contents

    Technical data ............................19 Ambient conditions........................19 Mechanical and electrical data.....................19 Explosion protection........................20 Electromagnetic compatibility ......................20 Dimension drawing ........................21 Ordering data............................22 Order no............................22 Accessories..........................22 Appendix..............................23 Technical support.........................23 SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 4: Introduction

    Comment / change 06/2010 Initial release 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. Environmental protection Devices described in this programming manual can be recycled owing to the low content of noxious substances in their version.

  • Page 5: Notes On Handling The Product

    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.
  • Page 6 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.

  • Page 7: Description

    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.

  • Page 8: Properties

    Description 3.2 Properties 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.
  • Page 9 ⑤ Manufacturer ⑥ Country of origin ⑦ Serial number ⑧ Order no. Figure 3-3 Nameplate ATEX plate ① Certification data in accordance with ATEX Figure 3-4 ATEX plate SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 10: Application Planning

    At an ambient temperature T ≥ 60 °C, use heat-resistant cables which are approved for an ambient temperature at least 20 K higher. Note The maximum cable length between the load cell and the weighing module is stated in the weighing module documentation. SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...
  • Page 11 Please observe that in the case of shielded cables of intrinsically safe circuits in hazardous areas, only one grounding is permissible. If grounding is to be on both sides, an equipotential bonding conductor with at least 4 mm² must be connected. SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 12: Installing And Connecting

    The SIWAREX JB junction box must only be mounted and connected by qualified personnel. Mounting You can mount the SIWAREX JB junction box in any position. Preferrably, the cable glands should point downward. 1. Prepare the location for mounting. Position the corresponding drill holes, see Dimension drawing (Page 21).

  • Page 13: Connecting Principle

    Connecting principle for load cells with four-wire system 2. Install the following jumpers: Jumper From terminal To terminal SENSE EXC+ SENSE+ NOTICE If the jumpers are missing, the weighing module will report a wire break. SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...
  • Page 14 1. Connect the load cells to the weighing module according to the circuit diagram. EXC- EXC- SENSE- SENSE- SIG- SIG- EXC+ EXC+ SENSE+ SENSE+ SIG+ SIG+ Figure 5-2 Connecting principle for load cells with six-wire system SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 15: Connection

    1. Install an EMC cable gland for each load cell that is to be connected. The position of the cable glands is shown in the figure above. 2. Open the cover of the junction box. 3. Close any unused openings in the SIWAREX JB enclosure using a cap screw. WARNING Measurement inaccuracies/risk of explosion The cables must be matched to the cable glands.

  • Page 16: Connecting The Shielding

    2. Slide the spring-loaded terminal block on one side under the applied screw ② 3. Insert the spring-loaded terminal block 4. Screw the spring-loaded terminal block firmly into place. SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 17: Connecting Spring-Loaded Terminals

    The use of spring-loaded terminals ensures that the contact pressure being exerted is permanently maintained. Note The use of spring-loaded terminals ensures that the contact pressure being exerted is permanently maintained. SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 18: Screwing On The Cover

    Please note that if the device is open or not completely closed, this degree of protection is no longer guaranteed. Procedure 1. Place the cover and screw it on properly. SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 19: Technical Data

    10 ... 150 ... 10 Hz, amplitude 0.35 mm Variable Value Rated voltage max. AC 250 V Rated current max. 10 A per terminal Conductor cross-section max. 1.5 mm² SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 20: Explosion Protection

    The circuits that are connected must be either only intrinsically safe or only non-intrinsically safe. Mixing is not allowed. If the SIWAREX JB junction box is operated with the marking II 1 D Ex tb + ib IIIC T85°C Da IP66 in hazardous zone 20, then the feeding circuit must meet the requirements of protection type "intrinisically safe"...

  • Page 21: Dimension Drawing

    Technical data 6.5 Dimension drawing Dimension drawing Figure 6-1 Dimension drawing SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 22: Ordering Data

    Internet: RST in the Internet (http://www.rst-gruppe.com) Signal cable Recommended cable: SIWAREX cable Li2Y2x0.75St+2x(2x0.34St)-CY Application Sheath color Order no. Standard applications Orange 7MH4702-8AG Intrinsically safe Ex application Light blue 7MH4702-8AF SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

  • Page 23: Appendix

    ● Information about field service, repairs, spare parts and lots more under "Services." Additional Support Please contact your local Siemens representative and offices if you have any questions about the products described in this manual and do not find the right answers.
  • Page 24 Appendix A.1 Technical support SIWAREX JB stainless steel with ATEX certificate Compact Operating Instructions, 06/2010, A5E01257284C-01...

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