Siemens 7MH7300 Series Скачать руководство пользователя страница 21 | Manualshive

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1

2

3

4

①

Side rail

③

Jam nut

②

Adjusting screw

④

Driven shaft

7.7

Weigh deck alignment

Precise deck alignment is very important to achieve maximum accuracy of the weighing

system. A misaligned deck will result in unwanted forces being applied in the weighing area,

causing calibration and measurement errors. Verify that the weigh deck is aligned properly.

Use a spirit level to level the load cells.

1

2

3

①

Belt direction

③

Load cell base locking screws

②

Alignment string/wire
Run string to ensure alignment is +1/32" (+0.8 mm) to 0"
(0 mm) aligned with approach and retreat slider bars.

Commissioning

7.7 Weigh deck alignment

SITRANS WW200

Operating Instructions, 06/2018, A5E33560654-AC

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Содержание 7MH7300 Series

Страница 1: ...ating Instructions 7MH7300 SITRANS WW200 06 2018 A5E33560654 AC Introduction 1 Safety information 2 Description 3 Installing 4 Calibrating 5 Connecting 6 Commissioning 7 Maintenance 8 Troubleshooting 9 Technical data 10 Dimension drawings 11 ...

Страница 2: ...se 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 ...

Страница 3: ... Commissioning 17 7 1 Shear gate 17 7 2 Skirtboards 17 7 3 Changing the conveyor belt 18 7 4 Belt tension 19 7 5 Belt tracking 19 7 6 Telescoper adjustment 20 7 7 Weigh deck alignment 21 7 8 Quick startup overview 22 7 9 Load cell replacement 22 7 9 1 Removing old load cell 22 7 9 2 Installing new load cell 23 7 9 3 Recalibration 24 8 Maintenance 25 8 1 Preventative maintenance 25 8 1 1 Recommende...

Страница 4: ...rication 27 8 4 5 Belt care 27 9 Troubleshooting 29 9 1 Mechanical troubleshooting 29 9 1 1 Zero Drift non repeatability or non linearity 29 10 Technical data 31 10 1 Specifications 31 11 Dimension drawings 33 11 1 Open unit 33 11 2 Enclosed unit 34 Index 35 Table of contents SITRANS WW200 4 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 5: ...duct such as testing documents Follow these operating instructions for quick trouble free installation and maximum accuracy and reliability of your device We always welcome suggestions and comments about manual content design and accessibility Please direct your comments to Technical publications mailto techpubs smpi siemens com For the complete library of Siemens manuals go to Process Automation ...

Страница 6: ...Introduction 1 1 The manual SITRANS WW200 6 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 7: ...rking on or around the weighfeeder especially in wet environments and when adjacent to conductive steel mounting framework Note A weighfeeder can be dangerous Pinch points exist along the conveyor belt line Secure the weighfeeder when replacing the belt working on or around the load cell s working on or around the speed sensor working on or around the drive components working on or around the moto...

Страница 8: ...Safety information 2 1 Safety and general precautions SITRANS WW200 8 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 9: ...duct In motion weighing requires accurate transmission of the product load to load cells The resulting voltage signal corresponding to weight is transmitted to the integrator and becomes one of the two inputs required for integration Unlike static weighing in motion weighing integration requires a second input a pulse signal proportional to the speed of the conveyor belt Each belt speed sensor pul...

Страница 10: ...3 2 WW200 Operation Enclosed unit Open unit Description 3 2 WW200 Operation SITRANS WW200 10 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 11: ...o NOT remove the tagged load cell shipping bolt s until the installation is complete to prevent load cell damage Do NOT weld on or near the weighfeeder while the load cell is connected to the electronic integrator Damage to the integrator may result if the load cell is not disconnected from the integrator Follow a scheduled preventative maintenance program to ensure optimum performance and long eq...

Страница 12: ...be provided at the discharge end of enclosed units If no de dust system is required this port should be closed 7 Connect the proper electric supply to the motor and or motor controller The AC or DC motor controller if present must be grounded to minimize noise to the electronic integrator Refer to the applicable wiring diagram to make all electrical connections between the electronic integrator an...

Страница 13: ... calculate the test load or to change it refer to the integrator instruction manual 5 2 Zero Perform the zero calibration as described in the Calibration section of the integrator manual Note This calibration should be at least three belt revolutions or five minutes whichever is longer 5 3 Span The test load used in the calibration procedure is based on a set of factory sized test weights 2 or mor...

Страница 14: ...Calibrating 5 3 Span SITRANS WW200 14 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 15: ...B CH A SIG CCW SHIELD SHIELD SHIELD SHIELD TB6 TB8 2 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 6 6 6 6 6 7 7 7 7 7 6 1 Integrator Wiring Note Note For integrator wiring Wiring diagram shows connection to BW500 or BW500L For connection to SIWAREX FTC WP241 or WT241 loadcell signals need to be wired in parallel connect TB4 1 to TB2 5 and TB4 2 to TB2 6 SITRANS WW200 Operating Instruction...

Страница 16: ... and covered but not wrapped together as this will short the cell Note Standard wiring shown consult wiring diagrams for optional electrical connections On hazardous rated versions the termination box may appear different than shown Connecting 6 1 Integrator Wiring Note SITRANS WW200 16 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 17: ... shear gate on the inlet of the weighfeeder needs to be set to allow the maximum feed rate capacity required Consult your Siemens representative if feed rate changes are required 7 2 Skirtboards The skirtboards have been factory set to proper specifications Note that near the inlet the skirtboards are very close to the belt However toward the discharge end of the weighfeeder the skirtboards are 3 ...

Страница 18: ...remove and re install the belt 1 On enclosed models open and remove the access and non access side panels 2 Mark the current position of the telescoper for reference This will be a reference when you re install the belt Loosen the telescopers to remove tension from the belt 3 Remove support posts on the belt change side and the belt side roller below the belt plow Remove tension from the belt scra...

Страница 19: ... belt should rotate when it is installed If there is no arrow rotation of the belt may be in either direction Whenever a new belt is installed perform the belt tracking procedure see Belt tracking Page 19 New belts should be un rolled and allowed to relieve any kinks or bends this will help tracking and weighing accuracy 7 4 Belt tension The ideal belt tension for any weighfeeder is just enough te...

Страница 20: ... in the desired direction Often only a small amount of adjustment 1 turn or less will be required 4 Observe the results of the adjustment and then readjust if necessary Steps 2 and 3 may need to be repeated to obtain perfect belt tracking Note As you extend or compress the telescoper you may be changing the belt tension If belt tension has increased or decreased considerably while attempting to tr...

Страница 21: ...ed in the weighing area causing calibration and measurement errors Verify that the weigh deck is aligned properly Use a spirit level to level the load cells 1 2 3 Belt direction Load cell base locking screws Alignment string wire Run string to ensure alignment is 1 32 0 8 mm to 0 0 mm aligned with approach and retreat slider bars Commissioning 7 7 Weigh deck alignment SITRANS WW200 Operating Instr...

Страница 22: ...uestions or problems 7 9 1 Removing old load cell 1 Confirm the new replacement load cell is correct and functional Using a digital volt meter or ohm meter verify that the resistance of the new load cell matches the resistance printed on the specification sheet that comes with the load cell If the resistances do not match the load cell may be damaged Consult your Siemens representative 2 Disconnec...

Страница 23: ...bolts and tighten them by hand The load cell should now be resting against the overload bolt 3 Install the two top front load cell mounting bolts Tighten them by hand 4 Start with the bottom load cell mounting bolts and tighten them to the torque value indicated in the load cell instructions Now tighten the two top front load cell mounting bolts to the same torque value Commissioning 7 9 Load cell...

Страница 24: ...and the frame 6 Perform a load cell balancing procedure as described in the integrator instruction manual 7 9 3 Recalibration 1 Power up the integrator and using the appropriate integrator menu verify that the new load cell s are operating correctly 2 Zero calibrate the unit using the integrator manual for reference Record zero calibration procedure results 3 Span calibrate the unit using the inte...

Страница 25: ...erial build ing up on load cell area Weekly More frequently in dirty environ ments Belt tracking Visually inspect to assure that con veyer belt remains trained Daily Integrator controller Span check Monthly Use calibration weights Calibration span check Verify belt zero Daily at least once week See Calibration section of Inte grator manual Bearings Inspect and lubricate as required Every 10 000 ho...

Страница 26: ...r supplied with your weighfeeder it has an initial break in period After the first 250 hours of operation the gear box es should be drained and refilled to the proper level s Subsequent oil changes should be done every 2500 hours See the gear reducer manual for further details If there is a gear motor motor and reducer all in one housing supplied with your unit it is permanently lubricated No lubr...

Страница 27: ... and component cabinets This includes the load cell junction box the integrator cabinet and the motor speed controller enclosure if present 8 4 4 Lubrication Grease all greasable points 8 4 5 Belt care Reduce belt tension to a minimum to prevent belt damage and re adjust belt tension at re installation Note Do NOT store the weighfeeder in direct sunlight as this will cause premature breakdown of t...

Страница 28: ...Maintenance 8 4 Weighfeeder storage recommendations SITRANS WW200 28 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 29: ... weigh deck alignment Verify weigh deck alignment is as accurate as possible Improper alignment is the most common mechanical problem affecting scale accuracy Contact your Siemens representative if you find a problem here Note Alignment should be 1 32 0 8 mm to 0 0 mm aligned with approach and retreat slider bars material buildup on weigh section or pulleys or between the weigh deck and weighfeede...

Страница 30: ...Troubleshooting 9 1 Mechanical troubleshooting SITRANS WW200 30 Operating Instructions 06 2018 A5E33560654 AC ...

Страница 31: ...ess steel loadcells 30 Nm for nickel plated loadcells Non repeatability 0 02 Max tightening torque of the load cell mounting bolts see loadcell manual or datasheet Speed sensor Optical encoder driven pulley mounted Framework Precision machined stainless or mild steel Cantilevered design for easy belt replacement Pulleys 152 mm 6 diameter with 6 mm neoprene lagging for maximum traction Belting Poly...

Страница 32: ...ing sealed surface complies with FDA Shipping weight 280 kg 617 lbs minimum Approvals Declaration of incorporation of partly completed machinery acc directive 2006 42 EC For use in hazardous rated areas select hazardous location options Note that only electrical components are rated and entire weighfeeder is not Stainless steel options meet FDA requirements for food processing Technical data 10 1 ...

Страница 33: ... 516 mm 20 3 272 kg 600 lb 457 mm 18 356 mm 14 578 mm 22 8 333 mm 13 1 668 mm 26 3 318 kg 700 lb 610 mm 24 508 mm 20 730 mm 28 8 409 mm 16 1 820 mm 32 3 363 kg 800 lb 762 mm 30 660 mm 26 883 mm 34 8 486 mm 19 1 973 mm 38 3 408 kg 900 lb 915 mm 36 813 mm 32 1035 mm 40 8 562 mm 22 1 1125 mm 44 3 453 kg 1000 lb 1067 mm 42 965 mm 38 1187 mm 46 8 638 mm 25 1 1278 mm 50 3 499 kg 1100 lb 1219 mm 48 1118 ...

Страница 34: ...56 mm 14 864 mm 89 838 mm 33 612 kg 1350 lb 610 mm 24 508 mm 20 1041 mm 41 991 mm 39 703 kg 1550 lb 762 mm 30 660 mm 26 1194 mm 47 1143 mm 45 794 kg 1750 lb 915 mm 36 813 mm 32 1346 mm 53 1295 mm 51 885 kg 1950 lb 1067 mm 42 965 mm 38 1499 mm 59 1448 mm 57 975 kg 2150 lb 1219 mm 48 1118 mm 44 1651 mm 65 1600 mm 63 1066 kg 2350 lb Length adder E F G STD 1321 mm 52 1016 mm 40 1975 mm 77 75 203 mm 8 ...

Страница 35: ...17 Framework 31 G Gear motor 26 storage 27 Gear reducer 26 storage 27 General maintenance 26 Grounding 11 I Inlet 17 In motion weighing 9 Installation 11 Integrator 9 13 22 L Load cell care 26 Load cells 9 31 Lubrication 26 storage 27 M Material temperature 31 Materials 31 O Operating range 31 Operating temperature 31 P Preventative maintenance 25 Preventative maintenance program 11 Program sheet ...

Страница 36: ...Specifications 32 Speed sensor 31 Speed sensor 9 Startup 17 Static weighing 9 Storing a weighfeeder 26 T Temperature material 31 Test load 13 Test weights 9 U Units 9 W Weigh bridge 9 Weighfeeders How they work 9 Z Zero calibration 13 Index SITRANS WW200 36 Operating Instructions 06 2018 A5E33560654 AC ...

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