Four Steps to End Encoder Problems

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

Q&A at the end of the presentation

Hashtag for this webinar: #DWwebinar

Before We Start

Moderator Presenter

Miles BudimirDesign World

Brian WinterNidec Avtron Automation Corporation

4 Steps to End Encoder Problems

Brian W. WinterNidec Avtron Automation Corporation

Step 1: Recognize The Kind of Problem

• Electrical Failures• Mechanical Failures• Mysterious Failures• Replacement Issues

Electrical Failures• The encoders will spin or move, but the outputs

don’t make your machine happy.o Maybe the outputs are failing?o Maybe the guts are failing?o Maybe there is nothing wrong with the encoder…the problem is somewhere

else?

What Encoder Output Should

Look LikeIncremental Quadrature

Encoder Shown

What Encoder Output Can Look

LikeIncremental Encoder Shown

What Encoder Output Can Look

LikeIncremental Encoder Shown

What If You Don’t Have a

Scope?Incremental Encoder with

Overspeed Switch Shown

Mechanical Failures• The encoders won’t spin or move or there is that

funny grinding sound…o Maybe the bearings are failingo Maybe something else is failing inside?

What Encoder Bearings are Supposed to

Look LikeRotary Encoder Shown

What Encoder Bearings Can

Look LikeRotary Encoder Shown

Maybe Something Else

Went Wrong Inside?

Rotary Encoder with Glass

Optical Disk Shown

Mysterious Failures• The encoder causes machine problems, but there

are no obvious mechanical or electrical problemso Is this encoder broken?o Don’t open that can of worms!

Is this encoder broken?

Rotary

Quadrature Encoder Shown

Are these encoders broken?

Rotary No-Bearing

Quadrature Encoder Shown

Are these encoders broken?

Rotary No-Bearing

Quadrature Encoders Shown

Is this encoder broken?

Encoder with Diagnostics

Shown

Don’t Open This Can of Worms!

Absolute Encoder with Gear

Multiturn System Shown

Replacement Issues• It’s broken for sure (we think) but we can’t find

one!o Millions of optionso Country specifico Long lead times

Step 2: Get Rid of the Claptrap(if you can)

• Mechanical stuff outside the encoder• Stuff inside the encoder

External Belt Systems

Incremental Encoder with

Shaft and Belt System Shown

External Belt Systems

Incremental Encoder with

Shaft and Belt System Shown

External Couplings

Incremental Encoder with

Overspeed Switch Shown

Internal Gears, Multiple SensorsAbsolute Encoder with Gear

Multiturn System Shown

Step 3: Get Rugged• What’s heavy duty mean?• How to make it tougher!

Is This A Heavy Duty Encoder?Quadrature Encoder with

Shaft Shown

Are These Heavy Duty Encoders?Quadrature Encoders with

Shaft Shown

Beef It UpEncoder Bearings

Don’t Let Stuff InAbsolute Rotary Encoder

with Shaft Shown

Beef It UpAbsolute Encoder with No

Internal Gears

Seal It UpSensor for Rotary No-Bearing

Encoder

Bolt it Right OnIncremental Rotary No-

Bearing Encoder Shown

Step 4: Get Diagnostic• Remote Diagnostics• Local Diagnostics

This Encoder is Working Great!

Encoder with LED

Diagnostics Shown

Remote Diagnostics• Get them!o Simple relay contacto Smart communication bus options

Summary• Recognize the Problem(s)• Simplify Mechanical Mouting• Ruggedize Mechanicals• Get Diagnostics

Thank You

Nidec Avtron makes the most reliable encoders in the world

Questions?

Miles BudimirDesign Worldmbudimir@wtwhmedia.comPhone: 440.234.4531Twitter: @DW_Motion

Brian WinterNidec Avtron Automation Corporationbrian.winter@nidec-avtron.comPhone: 216-642-1230 Twitter: @AvtronEncoders

Thank You This webinar will be available at designworldonline.com & email

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