Siemens SIWAREX JB Operating Instructions Manual
Junction boxes
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Also See for SIWAREX JB:
- Operating instructions manual (90 pages) ,
- Compact operating instructions (24 pages) ,
- Instruction manual (18 pages)
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Weighing systems
Junction boxes
SIWAREX JB
Operating Instructions
7MH5001-0AA20 (SIWAREX JB aluminum)
7MH5001-0AA00 (SIWAREX JB stainless steel)
7MH5001-0AA01 (SIWAREX JB stainless steel Ex)
7MH5001-0AA41 (SIWAREX JB polyester Ex)
09/2022
A5E43011851-AD
Introduction
Safety information
Description
Application planning
Installing/mounting
Connecting
Service and maintenance
Technical data
Dimension drawings
Ordering data
Product documentation and
support
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Table of Contents
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Summary of Contents for Siemens SIWAREX JB
- Page 1 SIWAREX JB Installing/mounting Connecting Operating Instructions Service and maintenance Technical data Dimension drawings Ordering data Product documentation and support 7MH5001-0AA20 (SIWAREX JB aluminum) 7MH5001-0AA00 (SIWAREX JB stainless steel) 7MH5001-0AA01 (SIWAREX JB stainless steel Ex) 7MH5001-0AA41 (SIWAREX JB polyester Ex) 09/2022 A5E43011851-AD...
- 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.
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Page 3: Table Of Contents
Basic safety instructions ..................... 21 Install the junction box....................... 21 Connecting ............................23 Basic safety instructions ..................... 23 Connecting SIWAREX JB to the electronic weighing system and load cell ......24 Wiring diagrams......................... 25 6.3.1 Load cells with four-wire system..................25 6.3.2... - Page 4 Dimension drawing aluminum enclosure................36 Dimension drawing for polyester enclosure ................ 37 Ordering data ............................39 10.1 Accessories ........................39 Product documentation and support ....................41 Product documentation ..................... 41 Technical support....................... 41 Index ..............................43 SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 5: Introduction
4. Check the scope of delivery by comparing your order to the shipping documents for correctness and completeness. WARNING Using a damaged or incomplete device Risk of explosion in hazardous areas. • Do not use damaged or incomplete devices. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 6: Scope Of Delivery
5 x M20 x 1.5 EMC cable gland Figure 1-2 Scope of delivery: Polyester enclosure Security information Siemens provides products and solutions with industrial security functions that support the secure operation of plants, systems, machines and networks. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 7: Transportation And Storage
Siemens’ products and solutions undergo continuous development to make them more secure. Siemens strongly recommends that product updates are applied as soon as they are available and that the latest product versions are used. Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber... - Page 8 Introduction 1.7 Notes on warranty The content reflects the technical status at the time of publishing. Siemens reserves the right to make technical changes in the course of further development. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 9: Safety Information
Directive of the European Parliament and of the Council on the restriction of the use of certain hazardous substances in electrical and electronic equipment The applicable directives can be found in the EU conformity declaration of the specific device. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 10: Requirements For Special Applications
Note Operation under special ambient conditions We highly recommend that you contact your Siemens representative or our application department before you operate the device under special ambient conditions as can be encountered in nuclear power plants or when the device is used for research and development purposes. -
Page 11: Special Conditions
2. The circuits that are connected must be only intrinsically safe or only non-intrinsically safe. Mixing is not allowed. If the Ex terminal box type SIWAREX JB has been operated on non- intrinsically safe circuits, the subsequent use as intrinsically safe equipment in the hazardous area is not permitted. - Page 12 Safety information 2.3 Use in hazardous areas SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 13: Description
Description Applications The SIWAREX JB junction box is used in weighing systems with extra-low voltages ≤ 30 V. The SIWAREX JB junction box is used to connect load cells to the electronic weighing system. You can connect up to four load cells in parallel in a junction box. - Page 14 Description 3.1 Applications Load cell SIWAREX JB junction box Electronic weighing system Figure 3-2 Application design with more than four load cells SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 15: Design
EMC cable gland for the ⑦ ⑧ Optional: Nameplate with information connecting cable of a load cell on the hazardous area ③ ⑨ Screw for cover (4x) Mounting flange for equipotential-bonding conductor Figure 3-3 Stainless steel enclosure SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 16: Aluminum Enclosure
② ⑤ ⑥ Back with nameplate Plastic cable gland for the ⑦ ⑧ connecting cable a load cell ③ ⑨ Screw for cover (4x) Mounting screw for equipotential-bonding conductor Figure 3-4 Aluminum enclosure SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 17: Polyester Enclosure
Disconnect wire jumper [BRIDGE 1 and BRIDGE 2] for the connection of Load cells with six- wire system (Page 27) ② Output terminal [OUTPUT] for signal cable for weighing electronics ③ Load cell terminals [LOAD CELL 1 ... LOAD CELL 4] Figure 3-6 Internal view SIWAREX JB SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 18: Nameplates
ATEX/IECEx marking for hazardous area Approvals ⑪ ⑭ CE mark ATEX symbol ⑫ Permissible ambient temperature for the hazardous area of the corresponding temperature class Figure 3-8 Example nameplate with information on the hazardous area SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 19: Application Planning
The stainless steel SIWAREX JB junction box is equipped with EMC cable glands as standard. The connecting cables of the load cells are fed into the enclosure through EMC cable glands. A high level of protection against electromagnetic interference (EMI) is achieved due to the large area shielding in the cable gland. - Page 20 Application planning 4.1 Cable glands SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 21: Installing/Mounting
The cover is open. Procedure 1. Prepare the installation location. 2. Set the holes according to the dimension drawings. Dimension drawings (Page 35) 3. Screw the junction box securely to the wall with four screws. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... - Page 22 Installing/mounting 5.2 Install the junction box SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 23: Connecting
• If grounding is required at both ends, use an equipotential bonding conductor. WARNING Mixing intrinsically safe and non-intrinsically safe circuits Danger of explosion in hazardous areas. • Connect either only intrinsically safe or only non-intrinsically safe circuits. Mixing is not allowed. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 24: Connecting Siwarex Jb To The Electronic Weighing System And Load Cell
Connecting 6.2 Connecting SIWAREX JB to the electronic weighing system and load cell NOTICE Loss of degree of protection Damage to device if the enclosure is open or not properly closed. The degree of protection specified in the technical specifications is only guaranteed if the device is installed correctly. -
Page 25: Wiring Diagrams
Connecting 6.3 Wiring diagrams 4. Wire the SIWAREX JB to the load cell and the electronic weighing system in accordance with Wiring diagrams (Page 25). To learn how to connect the cable, see section Connecting the cable (Page 28). 5. Close any unused opening in the enclosure with a blanking plug. - Page 26 Cable shield of the signal cable connected to shield terminal The following wire jumpers are set by default: Wire jumper From terminal To terminal EXC- SENSE- EXC+ SENSE+ Note If the wire jumpers are missing, the electronic weighing system reports a wire break. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 27: Load Cells With Six-Wire System
SENSE+ SENSE+ EXC+ EXC+ SIGNAL+ SIGNAL+ Figure 6-4 Cable shield of load cell cable connected to shield terminal • Disconnect the following wire jumpers: Wire jumper From terminal To terminal EXC- SENSE- EXC+ SENSE+ SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 28: Connecting The Cable
4. Insert the stripped load cell cable into the square opening of the screw terminal as far as it will 5. Tighten the screws with the specified tightening torque (Page 31). Result The tightened screw firmly holds the stripped wire and establishes the contact. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 29: Service And Maintenance
Further information about devices containing batteries can be found at: Information on battery/product return (WEEE) (https:// support.industry.siemens.com/cs/document/109479891/) Note Special disposal required The device includes components that require special disposal. • Dispose of the device properly and environmentally through a local waste disposal contractor. SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... - Page 30 Service and maintenance 7.1 Disposal SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 31: Technical Data
Technical data Rated conditions SIWAREX JB is simple electrical equipment according to EN 60079-11 and can be used in intrinsically safe circuits including in hazardous areas. The connection board of SIWAREX JB meets the requirements for disconnecting intrinsically safe circuits: Clearances and creepage distances: >... - Page 32 Enclosure material Glass-fiber reinforced, duroplastic polyester with graphite additive Weight 2.688 kg Color RAL 9011, graphite black Cable glands Screw connection Terminal area Tightening torque M20 x 1.5 mm 3.2 ... 8 mm 25 Nm SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 33: Electrical Specifications
For the application increased safety Ex e and dust Power 10 W protection Ex tb For application intrinsically safe (Ex i) in accordance Maximum values: U = 30 V or with EN 60079-11 = 1 A = 4.2 W SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 34: Certificates And Approvals
• Type of protection "dust explosion protection by enclo‐ sure" Identification II 2 D Ex tb IIIC T85 °C Db II 1 D Ex tb + ib IIIC T 160 °C Da • ATEX SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 35: Dimension Drawings
Dimension drawings Dimension drawing stainless steel enclosure Figure 9-1 Dimension drawing stainless steel enclosure, dimensions in mm [inch] SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 36: Dimension Drawing Aluminum Enclosure
Dimension drawings 9.2 Dimension drawing aluminum enclosure Dimension drawing aluminum enclosure Figure 9-2 Dimension drawing aluminum enclosure, dimensions in mm [inch] SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... -
Page 37: Dimension Drawing For Polyester Enclosure
Dimension drawings 9.3 Dimension drawing for polyester enclosure Dimension drawing for polyester enclosure Figure 9-3 Dimension drawing for polyester enclosure, dimensions in mm [inch] SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... - Page 38 Dimension drawings 9.3 Dimension drawing for polyester enclosure SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 39: Ordering Data
Ordering data 10.1 Accessories You can order accessories online: Industry Mall (https://mallstage.industry.siemens.com/ mall/en/b0/Catalog/Products/10022772?tree=CatalogTree) SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... - Page 40 Ordering data 10.1 Accessories SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...
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Page 41: Product Documentation And Support
Additional information on our technical support can be found at Technical Support (http:// www.siemens.com/automation/csi/service). Service & support on the Internet In addition to our technical support, Siemens offers comprehensive online services at Service & Support (http://www.siemens.com/automation/serviceandsupport). SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... - Page 42 Product documentation and support A.2 Technical support Contact If you have further questions about the device, contact your local Siemens representative at Personal Contact (http://www.automation.siemens.com/partner). To find the contact for your product, go to "all products and branches" and select "Products &...
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Page 43: Index
Hotline, (Refer to Support request) Laws and directives Disassembly, 9 Personel, 9 Manuals, 41 Modifications correct usage, 10 improper, 10 Qualified personnel, 10 Scope of delivery, 5 Service, 41 Service and support Internet, 41 SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD... - Page 44 Index SIWAREX JB Operating Instructions, 09/2022, A5E43011851-AD...