stepservo™ technology: bridging the gap between cost effective and high performance motion

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StepSERVO Technology: Bridging the gap between Cost Effective and High Performance Motion Control

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q  This webinar will be available afterwards at www.designworldonline.com & email

q  Q&A at the end of the presentation q  Hashtag for this webinar: #DWwebinar

Before We Start

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Miles Budimir Senior Editor – Moderator

Design World

Eric Rice Marketing Director

Applied Motion Products, Inc.


Meet your Speakers

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1978

Applied Motion Products, Inc. is founded in 1978 in California to design, market and manufacture motion control solutions for the

automation industry.

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1978 1992

In 1992, Applied Motion designs and markets its first of many standard stepper drives, the 2035 full/half step drive.

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1978 1994

1992

Shanghai Moons’ Electric is founded in 1994.

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1978 1994

1997 1992

In 1997, Shanghai Moons’ Electric begins manufacturing stepper motors.

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1978 1994

1997 2007 1992

In 2007, Applied Motion and Moons’ form Shanghai AMP&MOONS Automation (AMA), a joint venture dedicated to the development and

manufacture of motor drives and integrated motors.

AMA

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1978 1994

1997 2007 1992

Moons’ acquires Applied Motion Products in 2014 to combine the strengths of all three companies into a global automation solutions provider.

AMA

2014

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1978 1994

1997 2007 1992

Moons’ acquires Lin Engineering in 2015, adding to the strength of Moons’ Industries globally.

AMA

2014 2015

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Moons’IndustriesHeadquartersandManufacturinginShanghai,China

Moons’IndustriesSupportcenterinMilan,Italy

Moons’IndustriesSupportcenterinChicago,USA

AppliedMo1onProductsWatsonville,CA,USA

LinEngineeringMorganHill,CA,USA

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Auto-lamination Line Stator Coating Shaft Production Rotor Assembly

Final Assembly Machining Centers

Produc'oncapacity>14millionstep,servoandBLDCmotorsannually.

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The Value of Applied Motion Products

Our Sales and Technical staff have an average of

23 years of experience in Motion Control.

Both at Applied Motion and these

other companies…

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The Value of Applied Motion Products

42 patents 30 patents

9 patents

3 patents

President, Don Macleod

Founder, Kenneth Kordik (ret.)

Chief Technical Office, Jeff Kordik

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Closed Loop Stepper Technology

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WHATISStepSERVO?• TECHNOLOGYforimplemen1ngclosedloopservocontrolof50-polepermanentmagnetbrushlessDCmotors,AKA“stepmotors”.

• ARANGEOFPRODUCTSconsis1ngofintegratedmotorsinNEMAframesizes.

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HowdoesStepSERVOcomparetotradi1onalopenlooptechnology?

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Input Drive/Controller

StepMotor

Output:RotorPosi1on

Tradi1onalStepMotorSystemisOpenLoop

ProsofOpenLoopSystems:•  Lowcost•  Simpletouse;notuningrequired•  Simpletocontrolwithdigitalpulse

anddirec1onsignals•  Preciseposi1oning

ConsofOpenLoopSystems:•  Resonanceatcertainspeedscan

leadtovibra1onandlossoftorque•  Canstallwithoutwarningiftorque

demandistoohigh•  Motorconsumescurrentregardless

ofload•  Canbenoisy(audible)

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ProsofClosedLoopSystems:•  Addi1onalpeaktorquerange•  Fullclosed-loopcontrol,e.g.torquecontrol•  Motordrawsonlythecurrentthatitneeds

Input Drive/Controller

StepMotor

Output:RotorPosi1on

StepSERVOSystemisClosedLoop

SensorPIDservocontrolloop

•  Be_eroverallsystemaccuracy

becausedrive/controlleralwaysknowstheposi1onoftherotor

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Input

Drive/Controller

Output:RotorPosi1on

Sensor

StepMotor

•  50-polebrushlessmotor(AKAstepmotor)•  5000lineincrementalencoder(20,000counts/rev)

Note:1024lineencoderusedonsmallestNEMA11motorsonly•  Integrateddriveandcontrolelectronics•  ClosedloopPIDservocontrol

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ServoMotors

OpenLoopStepMotors

Mo1onControlMarketSpace

Cost

$$$

$

Posi1onLoopBandwidthSpeed,Efficiency,Noise

StepSERVOMotors

Performance

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1.  ACCELERATION2.  EFFICIENCY3.  HEATING4.  AUDIBLENOISE5.  COST

Side-by-SideComparison:StepSERVOvs.OpenLoop

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1.ACCELERATION:Forshort,fastmovesStepSERVOmotorsarebest.

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0

50

100

150

200

250

300

0 5 10 15 20 25 30 35 40

Torque

(oz-in)

Speed(rev/sec)

Openloopmaxtorque Openloopusabletorque

Maxtorque

Usabletorque

Openloopspeed-torquecurve

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0

50

100

150

200

250

300

0 5 10 15 20 25 30 35 40

Torque

(oz-in)

Speed(rev/sec)

StepSERVOpeaktorque StepSERVOcon1nuoustorque

Con1nuoustorque

Peaktorque Up to 50% higher torque

StepSERVOspeed-torquecurve

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0

50

100

150

200

250

300

0 5 10 15 20 25 30 35 40

Torque

(oz-in)

Speed(rev/sec)

StepSERVOpeaktorque StepSERVOcon1nuoustorque Openloopusabletorque

StepSERVOClosedlooptorqueStepSERVOClosedlooptorque

Openlooptorque

ComparisonofOpenloopandStepSERVOspeed-torquecurves

Up to 85% more torque than open loop.

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0

5

10

15

20

25

0 0.02 0.04 0.06 0.08 0.1 0.12

Speed(rev/sec)

Time(sec)

Openloopmoveprofile

Fastestopenloopmoveprofile

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0

5

10

15

20

25

0 0.02 0.04 0.06 0.08 0.1 0.12

Speed(rev/sec)

Time(sec)

FastestStepSERVOmoveprofile

ComparisonofOpenloopandStepSERVOmoveprofiles

45% shorter move time than open loop. Almost 2X the number of cycles per minute.

Fastestopenloopmoveprofile

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2.EFFICIENCY:StepSERVOmotorsconsumelesspower.

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0

2

4

6

8

10

12

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

Speed(rev/sec)

Time(sec)

Openloopstepper StepSERVOClosedloopstepper

43.8WaKs 14.2WaKs

Side-by-sidecomparison:Samemoveprofileforbothmotors…•  Accel=100rev/sec2•  Decel=100rev/sec2•  Speed=10rev/sec•  Distance=5rev•  Dwell1me=0.1sec

AveragePowerConsump'on:

More efficient!

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3.HEATING:StepSERVOrunscooler.

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Ploss = i2R Alargepor1onofthelossesinamotor(Ploss)isequaltothesquareofthecurrent(i2)1mesthewindingresistance(R).Lossesgenerateheat.

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•  StepSERVOmotorsonlydrawthecurrenttheyneedtomovetheload.•  Openloopmotorsdrawthesameamountofcurrentwhetherit’srequiredtomovetheloadornot.

IMPORTANT!

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0

2

4

6

8

10

12

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

Speed(rev/sec)

Time(sec)

Openloopstepper StepSERVOClosedloopstepper

76.0°C 36.9°C

Side-by-sidecomparison:Samemoveprofileforbothmotors…•  Accel=100rev/sec2•  Decel=100rev/sec2•  Speed=10rev/sec•  Distance=5rev•  Dwell1me=0.1sec

MotorCaseTemperature,aZer30minutes:

Runs cooler!

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4.AUDIBLENOISE:StepSERVOrunsquieter.

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MotorUnderTest(MUT)

Microphone

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0

10

20

30

40

50

60

70

80

90

0 5 10 15 20 25 30 35 40

Audibleno

ise(d

BA@

12")

Speed(rev/sec)

Openloop

StepSERVO™closedloop

From0to1700rpm,StepSERVOisno1ceablyquieter.

From1700to2000rpm,Thereisnotmuchdifference.

Stepmotorsarenotgenerallyrecommendedabove2000rpm.

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5.COST:StepSERVOoffersgreatvalue.

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OpenLoop OpenLoopw/encoder

StepSERVOClosedLoop

1X1X

1.2X 1.38X

Rela'veCostComparison:IntegratedStepperMotors

Only38%morethanopenloop

Only15%morethanopenloopw/encoder!

Start at $257

1.15X1X

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SPECIFICATIONS:TSMSSMTXM

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TSM Specifica+ons

• DCinputvoltagesup70VDC• RS-232,RS-485•  8DIN,4DOUT,1AIN•  Step&Direc1on,AnalogVelocity/Torque/Posi1on,StreamingCommands,StoredProgramExecu1on,Fieldbus:

• NEMA11,17and23framesizes

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• DCinputvoltagesup70VDC•  Ethernet•  3DIN,1DOUT,1AIN•  Step&Direc1on,AnalogVelocity/Torque/Posi1on,StreamingCommands,StoredProgramExecu1on,Fieldbus:

• NEMA23framesize

SSM Specifica+ons

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TXM Specifica+ons

• DCinputvoltagesup70VDC• RS-232,RS-485,Ethernet•  3DIN,1DOUT,1AIN•  Step&Direc1on,AnalogVelocity/Torque/Posi1on,StreamingCommands,StoredProgramExecu1on,Fieldbus:

• NEMA24framesize•  IP65rated,M12connectors

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TSM SSM TXM

• IP65• NEMA24• RS-232,RS-485,Ethernet

• IP40• NEMA11,17,23• RS-232,RS-485

• IP40• NEMA23• Ethernet

• Step&Dir,Velocity,StreamingCommands,StoredProgram,Fieldbus

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WhatStepSERVOIS…•  Technologyforclosedloopcontrolofbrushlessmotors.• Amotorforpreciseandaccurateposi1oningapplica1onswith…

•  Moretorque.•  Higheraccelera1onrates.•  Be_eroverallsystemaccuracy.•  Lesswastedenergyandheat.•  Be_erefficiency.•  Lessaudiblenoise.

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WhatStepSERVOIS…• Anexcellentsolu1onforvelocitycontrolapplica1ons.• Anexcellentsolu1onfortorquecontrolapplica1ons.• Anexcellentsolu1onforallkindsofapplica1ons,including…

•  Labelling•  Materialhandling•  3Dprin1ng•  Automatedassembly•  Pressing•  Capping,screwing

•  Linearapplica1onswithballscrews,leadscrewsandbeltactuators

•  Medicaldevices•  Laboratoryequipment•  Semiconductormachinery•  CNCmachining•  Andmany,manymore…

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WhatStepSERVOISNOT…• Alow-polecountservomotor(e.g.4,6or8poles).• Recommendedforspeedsabove2000rpm.

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ResourcesProductInforma1on:www.applied-mo'on.com

•  Applica1onNotes•  Videos•  SovwareDownloads•  ManualsandQuickSetupGuides

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ResourcesWhitePaper:www.applied-mo'on.comDIRECTLINK:www.applied-mo1on.com/stepservo-white-paper

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ResourcesContactwww.applied-mo'on.comDIRECTLINK:www.applied-mo1on.com/contact

1-800-525-1609

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Monthlye-Newsle_erSignUpHere:www.applied-mo'on.com/newsleKerDIRECTLINK:www.applied-mo1on.com/newsle_er

• 1Emailpermonth• Newproductreleases• Technical1ps&tricks• More…

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Thankyou!

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Miles Budimir Senior Editor Design World [email protected] @DW_Motion

Eric Rice Marketing Director Applied Motion Products, Inc. [email protected] @ampmotion

Questions?


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Thank You q  This webinar will be available at

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