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Related Manuals for Siemens SIWAREX R
Summary of Contents for Siemens SIWAREX R
- Page 1 SIWAREX R Mounting units for SB series Operating Instructions Revision 09/2004...
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Page 2: Table Of Contents
SIWAREX R Mounting elements for load cells in the SB series Operating Instructions Chapter Overview Warning and Safety Terms ................. 4 General ....................... 5 General Conditions for Installation and Assembly ........ 7 Lift-off Protection..................7 Overload Protection ................... 7 Guidings..................... 8 Load-cell Dummies................... - Page 3 3.1.1 Application Range..................22 3.1.2 Construction ....................22 Assembly....................23 Technical Data ..................28 3.3.1 Function Data ....................28 3.3.2 Dimensions ....................29 Care and Maintenance ................30 Ordering Data ..................30 Guiding for Combination Mounting Unit ..........31 Technical Description................31 4.1.1.
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Page 4: Warning And Safety Terms
NOTE means a notice concerning possible advantages of conforming with the recommendation. Copyright © Siemens AG 2004 All rights reserved Disclaimer Circulation or duplication of this document, utilization and We have tested the contents of this document for compatibility disclosure of its contents are not permitted unless explicitly with the hardware and software described. -
Page 5: General
All obligations of Siemens result from the sales contract, which also contains the full and solely valid liability agreement. The provisions concerning product liability specified in the sales contract are not extended or limited by the information provided in this document. - Page 6 Brand names / Trademarks ® SIWAREX is a registered trademark of Siemens AG. The other designations in this manual may be trade marks, which if used by third parties, may infringe upon the rights of the proprietor. Document No.: A5E00353789B...
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Page 7: General Conditions For Installation And Assembly
General Conditions for Installation and Assembly Lift-off Protection Lift-off protections prevent the top plates being lifted from the load cells or permanently mounted load cells from being overloaded by tension against the measuring direction. Lift-off protections are necessary if there is a danger of the load platform being lifted or tipped. -
Page 8: Guidings
Revision 09/04 General Conditions for Installation and Assembly the permitted movement, on all sides, cannot be exceeded. In Fig. 1-2, this is displayed in two examples. Limit stop Limit stop Platform Platform Platform Platform Drill hole Drill hole Bolt Bolt ±2.8 ±2.8 ±2.8... - Page 9 Revision 09/04 General Conditions for Installation and Assembly The guidings should correspond with the principles used in the weighing technology. Round-head bolt guides for up to 1000 kN lateral load are also available upon request. Fig. 1-3 Guiding positioning Document No.: A5E00353789B Page 9...
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Page 10: Load-Cell Dummies
(e.g. SIWAREX R grounding cable 7MH3 701-1AA1). SIWAREX R load cells may only be installed and connected by qualified personnel. Load cells are precision components and are to be handled carefully. Pay special attention during transport and assembly. -
Page 11: Welding And Installation Work
Revision 09/04 General Conditions for Installation and Assembly Loads must be introduced precisely in the direction of measurement of the load cells. Torsion and bending moments, excentric loading and lateral loads are disturbance forces that lead to incorrect measurements and can cause damage if exceeding the permitted limitations of the load cells and mounting elements. -
Page 12: Installation Surfaces
Revision 09/04 General Conditions for Installation and Assembly DANGER Contaminated, icy or incorrectly set overload protection will create blockages which cause incorrect measurements or can cause injury or damage to the machinery by overloading the scale. CAUTION Proper assembly and installation of load cells and mounting elements is to be ensured by checking the assembly dimensions and freedom of movement for example. -
Page 13: Dismantling
Revision 09/04 General Conditions for Installation and Assembly 2. Mounting point height adjustment The output signals of all load cells are determined one after the other when they are loaded. In order to achieve similar load on all of them, spacer plates are used to adjust the height. -
Page 14: Elastomer Bearing
Elastomer Bearing Technical Description 2.1.1 Application Range The elastomer bearing is used for protecting the load cells if there is the possibility of having to deal with jolts or oscillation. It has a self-centering effect on the load platform. Together with the base plate it offers a simple solution for load cell mounting. -
Page 15: Assembly
Revision 09/04 Elastomer bearing No. Designation No. Designation 1 Base plate 6 Nut 2 Spacer bar 7 Overload protection 3 Load cell 8 Hexagon head screw 4 Washer 9 Washer 5 Hexagon head screw 10 Elastomer bearing Fig. 2-1 Structure of elastomer bearing Assembly The conditions for installation are very different. - Page 16 Revision 09/04 Elastomer bearing 2. Base plate preparation: • Unpack the base plate. 3. Elastomer bearing preparation: • Unpack the elastomer bearing (10). 4. Assemble the elastomer bearing unit: NOTE Please follow the guidelines from chapter 1.5 Load Cell Handling when working with load cells.
- Page 17 Revision 09/04 Elastomer bearing Fig. 2-2 Mounting the elastomer bearing Document No.: A5E00353789B Page 17...
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Page 18: Technical Data
Revision 09/04 Elastomer bearing 6. Setting the overload protection: • Load the loading platform with the maximum applicable load. • Set the overload protection mechanism (7) in connection with the nut (6) to 0.05 - 0,1 mm, see dimension X in Fig. 2-3 •... -
Page 19: Dimensions
Revision 09/04 Elastomer bearing 2.3.2 Dimensions Rated load 0.5 t, 1 t 100 170 85 156 92,6 100 11 231 100 170 11 100 156 92,6 120 11 241 120 205 14 100 184 109,9 120 11 271 Fig. 2-4 Dimensions elastomer bearing Document No.: A5E00353789B Page 19... -
Page 20: Care And Maintenance
Revision 09/04 Elastomer bearing Care and Maintenance General The physical properties of most rubber goods will change in adverse conditions or if improperly handled. Rubber components can become unusable when it becomes too soft or too hard, gets deformed or cracks, peels or has any other surface damage. The changes can be caused by the effects of e.g. -
Page 21: Ordering Data
Revision 09/04 Elastomer bearing Ordering Data Elastomer bearing Order number Order number for load cells with a Elastomer bearing Base plate rated load of 0.5 t, 1 t 7MH4 135-4AE11 7MH4 135-4DG11 7MH4 135-4DE11 7MH4 135-3DG11 7MH4 135-4KE11 7MH4 135-3KG11 The order numbers above do not include the load cells. -
Page 22: Combination Mounting Unit
Combination Mounting Unit Technical Description 3.1.1 Application Range Combination mounting units are for direct force transmission to the load cells. These are self-centering on the load platform. The combination mounting units have the following features: • Integrated oscillation limitation. • Integrated lift-off protection. -
Page 23: Assembly
Revision 09/04 Comb. Mounting Units No. Designation Designation 1 Base plate 10 Nut 2 Spacer bar 11 Overload protection 3 Load cell 12 Retaining ring 4 Washer 13 Oscillation housing 5 Hexagon head screw 14 Force guiding piece 6 Nut 15 Flat seal 7 Half-nut 16 Pendulum bolt... - Page 24 Revision 09/04 Comb. Mounting Units Assembly procedure: (numbering see Fig. 3-2) Load cell preparation: • A data sheet is supplied with every load cell with the calibration values for that load cell. This is found in a supply pocket which is stuck on the packaging. Take the data sheet and store it in a safe place.
- Page 25 Revision 09/04 Comb. Mounting Units DANGER A falling loading platform can result in death, severe injury or damage to equipment depending on exposure. • Insert the oscillation housing (13) into the load cell (3). The arrow on the front of the load cell indicates the direction of measurement.
- Page 26 Revision 09/04 Comb. Mounting Units Fig. 3-2 Mounting the combination mounting unit Installing the Combination Mounting Unit: • Loosen the bolts on the dummies. • Lift the loading platform from the first bracket and remove the dummy. • Set the combination mounting unit in place and loosely install the fastening bolts. •...
- Page 27 Revision 09/04 Comb. Mounting Units Setting the overload protection: • Load the loading platform with the maximum applicable load. • Set the overload protection mechanism (11) in connection with the nut (10) to 0.05 - 0,1 mm, see dimension X in Fig. 3-3 •...
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Page 28: Technical Data
Revision 09/04 Comb. Mounting Units Technical Data 3.3.1 Function Data Rated load 0.5 t, 1 t, 2 t Permitted transverse movement: ± 3 mm ± 3 mm Lifting distance of the top plate 3 - 3.5 mm 3 - 3.5 mm Max. -
Page 29: Dimensions
Revision 09/04 Comb. Mounting Units 3.3.2 Dimensions Rated load 0.5 t, 1 t, 2 t 210 120 170 20 105 15 20 26,2 100 20 75 45 80 32 12 250 150 205 25 140 20 20 28,9 120 25 90 60 100 38 14 Fig. -
Page 30: Care And Maintenance
Revision 09/04 Comb. Mounting Units Care and Maintenance Combination mounting units are to be inspected depending on the environmental conditions. If there is a high degree of dust, contamination, humidity etc., the maintenance intervals are to be chosen respectively. These are to be kept free of course contamination. -
Page 31: Guiding For Combination Mounting Unit
Guiding for Combination Mounting Unit Technical Description 4.1.1. Application Range If horizontal forces occur during weighing of movements of the load platform are to be prevented generally, guidings are used. They are used in conjunction with the combi- counting units. The layout of the guidings for different load platforms is illustrated in figures 4-1 and 4-2. -
Page 32: Construction
Revision 09/04 Guiding for comb. mounting unit Fig. 4-2 Guidings for square surface areas 4.1.2 Construction The guiding consists of two flanges (6) which are bolted to the top plate (9) and the base plate (8) of the combination mounting element. The two flanges (6) are kept at the necessary distance by two joint heads (5) with left and right hand thread and an adapter (1). -
Page 33: Assembly
Revision 09/04 Guiding for comb. mounting unit No. Designation 1 Adapter, left/right hand thread 2 Lock nut, 1x left hand, 1x right hand thread 3 Hexagon bolt (2x) 4 Washer (4x) 5 Joint head, 1x left hand, 1x right hand thread 6 Flange 7 Mounting screw M8 (4x) 8 Base plate... -
Page 34: Technical Data
Revision 09/04 Guiding for comb. mounting unit The guidings should be checked after mounting. The joint heads must turn easily every time the load platform is loaded. (numbering, see fig. 4-4) Fig. 4-4 Mounting the guiding Technical Data 4.3.1 Function Data Permissible horizontal force: 1.7 kN Tightening torque of the fastening screws M8:... -
Page 35: Dimensions
Revision 09/04 Guiding for comb. mounting unit 4.3.2 Dimensions Rated load 0.5 t, 1 t, 2 t 120 100 Fig. 4-5 Dimensions of guiding Care and Maintenance The guidings must be kept free of contamination. They are normally maintenance-free. In case of dynamic fluctuating loads, check regularly for loosening of screws. -
Page 36: Ordering Data
Revision 09/04 Guiding for comb. mounting unit Ordering Data Guiding for load cells with a Order number rated load of 0.5 t, 1 t, 2 t 7MH4 135-4DQ12 7MH4 135-4KQ12 The above order numbers do not include the load cells and combination mounting units. Document No.: A5E00353789B Page 36... -
Page 37: Grounding Cable
Grounding Cable Technical Description 5.1.1. Area of Application The grounding cable is used for protecting the load cells from unwanted currents. These currents could be cause by e.g.: • as equalization currents for missing or faulty, voltage equalization lines, • a lightning bolt in the vicinity, •... -
Page 38: Dimensions
Revision 09/04 grounding cable Dimensions Fig. 5-2 Dimensions grounding cable Care and Maintenance The connections of the cable are to be inspected regularly for corrosion and conductivity. Ordering Data Designation Order number Grounding cable 7MH3 701-1AA1 Document No.: A5E00353789B Page 38...