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Milltronics WD600
Operating Instructions, 09/2016, A5E38964753_A

B

5

Introduction

1

Note
The Siemens weighing system is to be used only in the manner outlined in this manual,

otherwise protection provided by equipment may be impaired.

•

It is your responsibility to read this manual before installing and starting up any

component of the weighing system to which the belt scale is being applied.

1.1

The manual

This manual covers only belt scale installation, operation, and maintenance procedures.

Integrator and speed sensor operating instructions are available for download from our website:
Siemens weighing (

http://www.siemens.com/weighing

Follow these operating instructions for quick, trouble-free installation, and maximum accuracy

and reliability of your weighing system.
We always welcome suggestions and comments about manual content, design, and

accessibility. Please direct your comments to:
Technical publications (

mailto:[email protected]

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Содержание Milltronics WD600

Страница 1: ...Operating Instructions Milltronics WD600 09 2016 Edition Belt Scales ...

Страница 2: ...mmunications Note Always use product in accordance with specifications Copyright Siemens AG 2015 All Rights Reserved Disclaimer of Liability This document is available in bound version and in electronic version We encourage users to purchase authorized bound manuals or to view electronic versions as designed and authored by Siemens Siemens will not be responsible for the contents of partial or who...

Страница 3: ...________________ ___________________ ___________________ ___________________ Milltronics Belt Scales Milltronics WD600 Operating Instructions 09 2016 A5E38964753_AB Introduction 1 Safety notes 2 Description 3 Installing Mounting 4 Connecting 5 Commissioning 6 Service and maintenance 7 Technical data 8 Dimension drawings 9 ...

Страница 4: ...ay be operated only by personnel qualified for the specific task in accordance with the relevant documentation 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 WAR...

Страница 5: ... Conveyor belting 12 4 2 3 Conveyor curvature 12 4 2 4 Belt ploughs 13 4 2 5 Stacker conveyors 13 4 2 6 Conveyor trippers 14 4 2 7 Skirt boards and sealing strips 14 4 3 Load cell handling 15 4 4 Installation precautions 16 4 5 Installation procedure 17 4 6 Idler alignment procedure 18 5 Connecting 21 5 1 Belt scale wiring 21 6 Commissioning 23 6 1 Calibration 23 6 2 Test Load 23 6 3 Balancing 23 ...

Страница 6: ...D600 Operating Instructions 09 2016 A5E38964753_AB 7 1 Maintenance 25 7 2 Replacing a load cell 25 7 3 Spare parts 26 7 4 Technical support 26 8 Technical data 27 8 1 Specifications 27 9 Dimension drawings 29 9 1 Outline dimensions 29 ...

Страница 7: ...le is being applied 1 1 The manual This manual covers only belt scale installation operation and maintenance procedures Integrator and speed sensor operating instructions are available for download from our website Siemens weighing http www siemens com weighing Follow these operating instructions for quick trouble free installation and maximum accuracy and reliability of your weighing system We al...

Страница 8: ...Introduction 1 1 The manual 6 Milltronics WD600 Operating Instructions 09 2016 A5E38964753_AB ...

Страница 9: ...requires proper transport storage positioning and assembly as well as careful operation and maintenance Only qualified personnel should install or operate this instrument Note Alterations to the product including opening or improper repairs of the product are not permitted If this requirement is not observed the CE mark and the manufacturer s warranty will expire ...

Страница 10: ...Safety notes 2 1 General safety instructions 8 Milltronics WD600 Operating Instructions 09 2016 A5E38964753_AB ...

Страница 11: ...g such products as fertilizer tobacco animal feed pellets and sugar WD600 belt scale consists of the following weighbridge slider deck two precision load cells on mounting pads with weighbridge mounts WD600 load cells output an electrical signal proportional to load which is applied to the selected Siemens belt scale integrator Thus weighing is accomplished without interrupting the process and wit...

Страница 12: ...ravels over the belt scale it exerts a force proportional to the material load through the suspended weighdeck to the load cells The belt scale reacts only to the vertical component of the applied force The resulting movement in each load cell is sensed by its strain gauges When the strain gauges are excited by voltage from the electronic integrator they produce an electrical signal proportional t...

Страница 13: ... cable glands to maintain NEMA or IP rating as applicable Adjust conveyor stringers to be rigid straight parallel to and square with the belt line in the area of the scale installation Adjust pulleys to ensure that the conveyor belt tracks straight and centrally from the head to the tail pulley The idler to be used on the scale and at least the next two approach and retreat idlers must be of the s...

Страница 14: ... the weight per unit length of the belt During the course of zero calibrations belt scales average the weight of the belt over one complete circuit of the belt Large deviations from the average adversely affect the zero calibrations 4 2 3 Conveyor curvature Vertical curvature varied heights on one belt is common in conveyor design but creates difficulties for belt scales if not dealt with correctl...

Страница 15: ...ices can negatively affect the belt scale idler alignment and usually create drag on the belt which the scale senses as a material force of load Note Do not install the scale within 9 m 30 ft of belt ploughs or similar devices that contact the material or belt 4 2 5 Stacker conveyors Any conveyor that is not a permanent structure which varies in its incline elevation or profile is not considered a...

Страница 16: ...ing strips Sometimes it is necessary to extend the infeed skirt boards and sealing strips the full length of the conveyor This can create problems in weighing accuracy if the sealing strips exert excess force when contacting the belt and indirectly upon the idlers especially where pinching occurs The situation adversely affects the zero calibrations Note If possible remove skirting in scale area I...

Страница 17: ...ken when handling the scale to avoid damaging the cells The stops are screws that are 38mm 1 5 long The screw threads into the bottom of the load cell and pulls the cell against the overload stop use a 0 5mm 02 shim between the load cell and overload stop to prevent damage When handling the WD600 during installation and set up make sure the stops remain in place Reinstall both shipping stops durin...

Страница 18: ...untings or the cells directly Do not stand or lean on the scale Avoid shock from blows of a hammer when trying to position the scale during installation Do not lift the scale by the top load cell mounting brackets CAUTION Arc welding Use extreme caution when arc welding in the area of the belt scale Ensure that no welding current can flow through the belt scale Welding currents passing through the...

Страница 19: ...cale assembly 2 Drill four 8 mm 5 16 diameter mounting holes This will allow clearance for 6 mm bolts Note Slotting the holes vertically will permit greater adjustment capability 3 Position the scale with the weighdeck towards the head end discharge of the conveyor and the load cells toward the tail end infeed Raise the conveyor belting to provide room for the installation of the scale 4 Insert th...

Страница 20: ...edure Scale accuracy is directly affected by alignment Note Improperly aligned idlers could cause unwanted forces to be applied to the weighbridge resulting in calibration and measurement errors 1 Remove the shipping stops to free the weighing mechanism Keep the screws stored in a convenient place for use during maintenance or at other times when protection of the cells is necessary 2 Align and le...

Страница 21: ... roll pan Use good quality wire 0 5 mm 1 64 diameter or equivalent nylon line to check for alignment The wire or string aligning lines must be able to withstand sufficient tension to eliminate sag in the line Note Although the accepted tolerance for idler alignment is 0 8 mm 1 32 the scale mounted idler should never be lower than the adjacent idlers 5 Carefully lower the conveyor belt onto the sca...

Страница 22: ...Installing Mounting 4 6 Idler alignment procedure 20 Milltronics WD600 Operating Instructions 09 2016 A5E38964753_AB Aligning wire WD600 Existing slider Weigh deck ...

Страница 23: ...WAREX FTC A RED EXC EXC BLK EXC EXC WHT SIG A SIG GRN SIG A SIG SHIELD SHIELD SHIELD B RED EXC EXC BLK EXC EXC WHT SIG B SIG GRN SIG B SIG SHIELD SHIELD SHIELD Note For stainless steel versions the blue and purple SEN lines must be connected to the EXC lines when not in use For example please connect the blue line to the black line and the purple line to the red line ...

Страница 24: ...Connecting 5 1 Belt scale wiring 22 Milltronics WD600 Operating Instructions 09 2016 A5E38964753_AB ...

Страница 25: ...r or pounds per foot The test load value is calculated as follows 6 3 Balancing For applications where the conveyor loading does not repeat in locations across the width of the belt such as side to side loading electronic balancing of the two load cells is recommended Balancing is completed during the initial start up but should be repeated if either load cell is reinstalled or replaced Refer to t...

Страница 26: ...the hole in the top load cell mount 2 Perform the span calibration as described in the Calibration section of the integrator operating instructions Calibration test weight After completing the span calibration remove the test weight s and store them With a successful zero and span calibration and with the test weight s removed from the belt scale the belt scale system is ready for operation Ensure...

Страница 27: ...performing zero and span calibrations If the zero and span deviations display a continuous unidirectional drift or the system cannot be calibrated for any apparent mechanical reason the load cells may be damaged 7 2 Replacing a load cell CAUTION Re install the shipping stops during maintenance or any other time when protection of the load cells is required Note The load cell stop is set at the fac...

Страница 28: ...upport is available on the Internet at Technical support http support automation siemens com WW view en 16604318 Service Support on the Internet In addition to our documentation we offer a comprehensive knowledge base online on the Internet at Service Support http www siemens com automation service support There you will find The latest product information FAQs downloads tips and tricks Our newsle...

Страница 29: ...ate for three revolutions of the belt or at least ten minutes running time whichever is greater Load Cell construction nickel plated alloy steel or 17 4 PH 1 4568 stainless steel degree of protection IP66 rated nickel plated IP68 rated stainless steel excitation 10 V DC nominal 15 V DC maximum output 2 mV V excitation at rated load cell capacity non linearity 0 02 of rated output hysteresis 0 02 o...

Страница 30: ... up to 100 t h 110 STPH at maximum belt speed Conveyor incline 20 from horizontal fixed incline up to 30 with reduced accuracy Conveyor idler flat Interconnection to integrator 150 m 500 ft 18 AWG 6 conductor shielded cable 150 m 500 ft to 300 m 1000 ft 20 AWG 8 conductor shielded cable Approvals General CE C TICK Milltronics WD600 with stainless steel load cell options meets FDA and USDA requirem...

Страница 31: ... maximum 12 300 mm 14 25 362 mm 15 381mm 16 5 419 mm 18 450 mm 20 25 514 mm 21 533 mm 22 5 572 mm 24 600 mm 26 25 667 mm 27 686 mm 28 5 724 mm 30 750 mm 32 25 819 mm 33 838 mm 34 5 876 mm 36 900 mm 38 25 972 mm 39 991 mm 40 5 1029 mm 42 1000 mm 44 25 1124 mm 45 1143 mm 46 5 1181 mm 48 1200 mm 50 25 1276 mm 51 1295 mm 52 5 1334 mm ...

Страница 32: ...Dimension drawings 9 1 Outline dimensions 30 Milltronics WD600 Operating Instructions 09 2016 A5E38964753_AB ...

Страница 33: ......

Страница 34: ... com For more information www siemens com processautomation www siemens com level www siemens com weighing Siemens Canada Limited Siemens Milltronics Process Instruments 1954 Technology Drive P O Box 4225 Subject to change without prior notice A5E38964753 Rev AB Siemens AG 2016 ...

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