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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 [email protected]: 440.234.4531Twitter: @DW_Motion
Brian WinterNidec Avtron Automation [email protected]: 216-642-1230 Twitter: @AvtronEncoders
Thank You This webinar will be available at designworldonline.com & email
Tweet with hashtag #DWwebinar
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