Overview

SITRANS WW100

Overview

SITRANSWW100 is a high-accuracy, low-capacity weighfeeder used

for minor ingredient additives.

Benefits

•

High accuracy

•

High turn down ratio; 100 to 10% of capacity

•

Corrosion resistant components

•

Fast and easy belt removal for replacement or cleaning

•

Simple installation, easy to clean and maintain

•

Available with gear or servomotor

Application

SITRANS WW100 is one of the most accurate in-motion weighing

systems on the market. It is specially designed for high accuracy on

light loading processes. The design eliminates material buildup to

ensure accurate, reliable measurement.

The unique long length platform weigh bridge mounts directly to a

corrosion-resistant platform load cell. An adjustable mechanical

shear gate profiles the material and fixes the correct material bed

depth for a given material particle size. The belt speed can be auto

matically adjusted to attain the correct feed rate.

Standard components include an anti-static food grade belt, gravity

tensioned roller, tail pulley driven belt for maximum weighing

accuracy, belt tracking rollers, belt scraper and plow for self-clean

ing.

SITRANS WW100 · 9/2024

SITRANS WW100

Selection and ordering data

Article No.

SITRANS WW100 Weighfeeder

Compact design with capacity up to 25m³/h (880ft³/h).

7MH7180-

● ● ● ● ● - ● ● ●

Click on the Article No. for the online configuration in the PIA Life Cycle Portal.

Add order code Y71 … Y73 for all models to - specify design data.

Frame and enclosure construction

304stainlesssteel open style 0 B

316Lstainlesssteel open style 0 D

304stainlesssteel enclosed style with painted mild steel enclosure 1 B

304stainlesssteel enclosed style with 304stainlesssteel enclosure 1 D

316Lstainlesssteel enclosed style with painted mild steel enclosure 1 G

316L stainless steel enclosed style with 304stainlesssteel enclosure 1 J

316Lstainlesssteel enclosed style with 316Lstainlesssteel enclosure 1 M

Material containment construction

Add ordercode Y74 and plain text: "Arc radius in inches…XX.XXXinch" for options

A…H

Shear gate inlet and skirtboards 304stainlesssteel A

Shear gate inlet and skirtboards 304stainlesssteel with cover B

Shear gate inlet and skirtboards 304stainlesssteel, #4 polished C

Shear gate inlet and skirtboards 304stainlesssteel, #4 polished with cover D

Shear gate inlet and skirtboards 316Lstainlesssteel E

Shear gate inlet and skirtboards 316Lstainlesssteel with cover F

Shear gate inlet and skirtboards 316Lstainlesssteel, #4 polished G

Shear gate inlet and skirtboards 316Lstainlesssteel, #4 polished with cover H

Horseshoe inlet 304stainlesssteel

Horseshoe inlet 304stainlesssteel, #4 polished

Horseshoe inlet 316Lstainlesssteel

Horseshoe inlet 316Lstainlesssteel, #4 polished

Load cell

6kg (13.2lb) stainless steel, hermetically sealed 4

12kg (26.5lb) stainless steel, hermetically sealed 5

30kg (66.1lb) stainless steel, hermetically sealed 6

Speed sensor

1000PPR shaft mounted optical encoder 1

2500PPR shaft mounted optical encoder 2

1000PPR shaft mounted optical encoder, stainlesssteel 4

2500PPR shaft mounted optical encoder, stainlesssteel 5

Drive configuration

Standard AC gearmotor without drive

(Drive required for desired belt speed)

Add ordercode Y76 for electrical style: IEC, UL-R/CSA or CCC.

Add ordercode Y75 reduction ratio in plain text: "X:1".

220…240/380…480V 3ph 50/60HzAC 6 A

575V 3ph 60HzAC 6 B

Food grade AC gearmotor without drive

(Drive required for desired belt speed)

Add ordercode Y76 for electrical style: IEC, UL-R/CSA or CCC.

Add ordercode Y75 reduction ratio in plain text: "X:1".

220…240/380…480V 3ph 50/60HzAC food grade gearmotor 7 A

575V 3ph 60HzAC food grade gearmotor 7 B

SIMOTICS servomotor without accessories

Control unit, BOP, power module and input choke as well as power and communication

cables should be ordered separately.

8 A

Calibration Method

None A

1calibrationchain strand approx. 2.41kg/m (1.62lb/ft) B

2calibrationchain strands approx. 4.82kg/m (3.24lb/ft) C

3calibrationchain strands approx. 7.23kg/m (4.86lb/ft) D

Belt change access side

(looking from inlet to discharge)

Left hand 0

Right hand 1

SITRANS WW100 · 9/2024

SITRANS WW100

Selection and ordering data (continued)

Selection and ordering data Order Code

Further Designs

Please add "-Z" to article no. and specify order code(s).

Application Eng. reference number (max.15characters),

specify in plain text.

Y31

Shear gate arc radius: Enter shear gate arc radius in inches

(xxx.xxinch)

Y74

Enter design units (TPH,MTPH,lb/h,kg/h) Y71

Enter design speed (ft/m,m/s) Y72

Enter design flowrate Y73

AC gearmotor reduction ratio: Enter reduction ratio in

plain text (X:1).

Y75

AC gearmotor electrical style: IEC, UL-R/CSA or CCC Y76

Manufacturer's test certificate: according to EN10204-2.2 C11

Declaration of incorporation of partly completed

machinery acc. EC machine directive 2006/42/EC

C30

Stainlesssteel tag [69x50mm (2.71x1.97inch)]: meas

uring-point number/identification (max.27characters)

specify in plain text.

Y15

Plastic shear curtain to control dust at the infeed for flood

able materials and dusty applications

G11

Nylon brush for belt cleaning, mounted below drive pulley G14

Low weight belt for light loading, low rate applications

(recommendedforunder1t/h). Anti-static, FDA

approved.

G15

High temp belt for hot material applications [product

temp up to 160°C (320°F)], food grade.

G17

Blue colored belt G18

Belt with B-section edge K10 (white) or K8 (blue) G19

Food grade Polyurethane sealing at infeed area G22

Discharge dust hood, painted mild steel with de-dust

port

H50

Discharge dust hood, 304 stainless steel with de-dust

port

H51

Discharge dust hood, 316L stainless steel with de-dust

port

H52

Operating instructions

All literature is available to download for free, in a range

of languages, at

http://www.siemens.com/weighing/documentation

Spare parts Article No.

6kg (13.2lb) stainlesssteel loadcell

7MH5117-1QD00

12kg (26.4lb) stainlesssteel loadcell

7MH5117-2BD00

Selection and ordering data Order Code

30kg (66.2lb) stainlesssteel loadcell

7MH5117-2KD00

1000PPR optical encoder

6FX2001-2PB00

2500PPR optical encoder

6FX2001-2PC50

Speed encoder plug-in with 3m cable

A5E50846036003

Speed Encoder, 1000PPR, stainlesssteel

A5E50846036001

Speed Encoder, 2500PPR, stainlesssteel

A5E50846036002

Skirtboard seals, white, 2 m length

7MH7723-1TH

Skirtboard seals, blue, 2 m length

7MH7723-1TJ

Calibration chain, approx. 2.41kg/m (1.62lb/ft)

7MH7723-1HP

Calibration chain, approx. 4.82kg/m (3.24lb/ft)

7MH7723-1HQ

Calibration chain, approx. 7.23kg/m (4.86lb/ft)

7MH7723-1HR

Customers interested in servomotor and drive spares and

peripherals should consult a local sales person.

For more information, please visit

http://www.automation.siemens.com/aspa_app

Standard belt, white

7MH7723-1SA

Standard belt, blue

7MH7723-1SB

Low capacity belt, white

7MH7723-1SC

Low capacity belt, blue

7MH7723-1SD

High temperature belt, white

7MH7723-1SE

Guide rollers, set of 2

7MH7723-1SH

Gravimetric tensioning device

7MH7723-1SJ

Telescopers for WW100, stainless steel

7MH7723-1SY

Circuit board for termination box

A5E03623963

Bearing replacement kit, 2bearings each for headpulley

and tailpulley

7MH7723-1HV

Pulley replacement kit, for head and tailpulley, crowned,

with lagging

7MH7723-1HY

Belt cleaning kit

7MH7723-1HW

Enclosure latches, stainless steel, set of 5

7MH7723-1QT

Spare brush, 12inch belt width

7MH7723-1SN

Available with Frame Construction options0B...0Donly.

Available with Material Containment optionsA...Honly.

For use with 5VDC supply from RS422 circuit card.

For use with PPR optical encoders: 6FX20012PA50, 6FX20012PB00,

6FX20012PC50.

SITRANS WW100 · 9/2024

SITRANS WW100

Technical specifications

SITRANS

WW100

Mode of

operation

Measuring

principle

Strain gauge load cell and digital speed sensor

Typical application Control and monitor feed rates and blending in bulk chemicals,

tobacco, food, and water treatment

Measuring

accuracy

Accuracy

±0.25…0.5%

Repeatability ±0.1%

Specified range 10…100% based on speed

Design rate range 45kg/h…18t/h (100lb/h…20STPH)

Max volumetric

flow

25m

/h (880ft

/h)

Medium

conditions

Operating

temperature

-10…+55°C (10…131°F)

Material Stainlesssteel [304(1.4301) or 316L(1.4404)], bead blast finish

(1...6µm, 40...240µin)

Load cells

Construction 17-4 PH(1.4568) stainlesssteel

Degree of

protection

IP68

Excitation 10VDC nominal, 15VDC maximum

Output 2mV/V

•

Non-linearity ±0.02% of rated output

•

Non-repeatabil

ity

±0.01% of rated output

Capacity Stainless steel range: 6, 12, 30kg

Overload 150% of rated capacity

Temperature

•

Operating range: -40…+65°C (-40…+149°F)

•

Compensated: -10…+40°C (14…104°F)

Speed sensors

Optical encoder

output

•

RS 422 (TTL) 5 V DC, 150mAmax.

•

1000 or 2500pulses per revolution (ppr)

Degree of

protection

•

Standard: IP64

•

Stainless steel: IP66

Temperature -10…+70°C (14…158°F)

Framework

•

Precision machined, stainless [304(1.4301) or 316L(1.4404)] or

mildsteel

•

Cantilevered design for easy belt replacement

Pulleys 115mm (4.5inch) diameter, crowned and lagged

Bearings

•

4-bolt flange mount on drive pulley

•

2-bolt threaded base pillow block on driven pulley

Belt speed 0.005 ... 0.25 m/s (1 ... 50 fpm)

Belt support Slider bed frame

Belting

•

Polyester carcass with polyurethane top cover and static control with

vulcanized endless finger splice for max. weighing consistency

(standard); optionally available in blue and as low capacity belt;

product temperature up to 110°C (230°F)

•

Belt properties in compliance with food safety Regulation (EU) No.

10/2011 and Regulation (EU) No. 1935/2004

•

Meets FDA 21CFR and Halal

•

HACCP concept supported: resistant to hot water and ideal for fre

quent cleaning cycles

•

Silicone high temp belt for hot material applications [product tem

perature up to 160°C (320°F)], in compliance with Regulation (EU)

No. 10/2011 and Regulation (EU) No. 1935/2004, meets FDA 21CFR

Belt tension

•

Counter-weighted stainless steel [304(1.4301) or 316L(1.4404)]

tensioning idler for consistent tension

•

Screw type, telescoper module with 25mm (1inch) travel, stain

lesssteel 304(1.4301)

Technical specifications (continued)

SITRANS

WW100

Belt cleaning

•

PE-HD blade type with counterweight at the head pulley for cleaning

product side of belt

•

Return plow

Servomotor SIMOTICS Servomotor; a SINAMICS drive, motor and communication

cables to be ordered separately.

Standard

gearmotor

Helical-worm geared motor, AC, Efficiency class IE1, IEC or UL-R/CSA,

IP55, incl. PTC, RAL7031, C2 coating acc. EN12944.

Food grade

gearmotor

Helical-worm geared motor, AC, Efficiency class IE3, IEC or UL-R/CSA,

IP66, including PTC, corrosion resistant aluminum housing, sealed

surface treatment nsd tupH, complies with FDA.

Shipping weight 91kg (200lb)…181kg (400lb) maximum

Approvals

•

Declaration of incorporation of partly completed machinery acc. dir

ective 2006/42/EC.

•

Meets FDA and EU requirements for food processing

Accuracy subject to: on factory approved installations the weigh feeder

system’s totalized weight will be within the specified accuracy when com

pared to a known weighed material test sample. The test rate must be

within the specified range of the design capacity and held constant for the

duration of the test. The minimum material test sample must be equival

ent to a sample obtained at the test flow rate for three revolutions of the

belt or at least ten minutes running time, whichever is greater.

SITRANS WW100 · 9/2024

SITRANS WW100

Dimensional drawings

Open Horseshoe Inlet

Open Construction

Inlet

Discharge

Inlet

Discharge

368 (14.5)

216 (8.5)172 (6.8) 406 (16)

450 (17.7)

838 (33)

368 (14.5)

216 (8.5)172 (6.8) 406 (16)

838 (33)

416.6 (16)

317.5 (12.5)

917.5 (36.1)

1 056.5 (41.6)

317.5 (12.5)

917.5 (36.1)

1 056.5 (41.6)

SITRANSWW100, dimensions in mm (inch)

SITRANS WW100 · 9/2024

SITRANS WW100

Dimensional drawings (continued)

Enclosed Construction

Open Dust Hood

Inlet

Discharge

516.6 (20.3)

406.4 (16)

86.5 (3.4)

108.8 (4.3)

1 225.6 (48.3)

368.3 (14.5)

838 (33)

813 (32)

610 (24)

810 (32)

838 (33)

387 (15.25)

127 (5)

482 (19.0)

438 (17.3)

SITRANSWW100, dimensions in mm (inch)

SITRANS WW100 · 9/2024

SITRANS WW100

Circuit diagrams

7 1

6 7

TB5

SHIELDSHIELD

HIELD

SHIELD

INTEGRATOR

LOAD CELL SPEED SENSOR

TB2

+ EXC

EXC

+ SIG A

- SIG A

TB1

+ EXC

+ SIG A

+ IG B

SIG A

- SIG B

OMC

"A"

TB6

TB8TB7

TB3

TB4

SIG CCW

SIG CW

EXC+

XC-

CH A

CH/A

CH B

CH/

SITRANS WW100 connections

SITRANS WW100 · 9/2024