In today’s tight economy, OEMs and end-users alike are searching for ways to get an edge over their competition, and closed-loop feedback might just be the best secret weapon you’ve never considered. Sure, encoders and resolvers are a must for high-speed packaging, but did you know that they can provide big savings and performance boosts over the life of a system for applications ranging from dockside loading to oil drilling to firefighting? Today’s encoders and resolvers can increase throughput, decrease downtime, enhance safety, and increase performance. Looking to gain an edge over your competitors.
2. Before We Start
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4. Allen Chasey is the Eastern U.S. Sales Manager for Dynapar Corp. and specializes in encoder
and resolver motion feedback, with a concentrated focus in the Off-Highway Vehicle industry.
Allen received his Bachelor of Science in Applied Physics from Jacksonville University, and has
worked in the electronic/automation industry for twenty years.
8. Work Smarter, Not Harder
Closed-loop feedback
increase throughput
decrease downtime
enhance safety
boost performance
long-term savings
Paper Mill
9. “But I don’t build packaging machines.”
Are you involved in
industries like:
Mining
Logging
Aerospace
Steel manufacturing
Tire manufacturing
Dockside cranes
Oil & Gas
(drilling,exploration)
Elevator
Motor OEM
10. It ain't what you don't know that's
the problem, it's what you know
for sure that just ain't so.
-- Mark Twain
11. HVAC Cooling Fans: Lesson Learned!
The first engineering team to try it gained an enormous strategic advantage
12. Rotary Feedback 101
Speed feedback
Position feedback
Close the loop on the
load or on the motor
13. Resolvers
Tough--no onboard
electronics
Analog
High resolution
Resolver Applications:
• Aerospace
• Oil & Gas (down-hole drilling)
• Formula One Racing
(Kinetic Energy
Recovery System)
15. Encoders
Speed or position
Flexible
Optical versus
magnetic
Incremental
versus absolute
High resolution
Digital
Did We Mention TOUGH?
16. Poll question #1
When should you close the loop on the motor rather
than the load?
a) Controlling speed, not displacement
b) When there’s excessive backlash
or “slop” in your system
c) When tight speed tolerance
(.01%) isn’t required
19. …and Downtime is Not.
Another diagnostic for drives
and controllers
The canary in the coal mine
Detect problems faster
Encoders alert drives
Drives and controllers alert HMI
Shop floor to top floor
Planned maintenance vs. unplanned faults
20. On The Bus
Logging: if a branch
catches a wire, how do
you find the problem?
Connected, closed-loop
feedback
22. It’s not about going fast
The slower you go, the more resolution you need
If you’re controlling volume, you need to control speed
23. This matters in…
Underground mining
vehicles
Better starting and
stopping
Elevator cars
Fertilizer spreaders
24. What does it get you?
Better quality product – paper,
rolling metal, rubber and tires
Better starting and stopping –
elevators, mining vehicles
Less wear
Smaller motors can
do the job
25. Poll question #2
When is high-resolution feedback
most important?
a) High-speed motion
b) Low speed motion
c) High-dynamic-range motion
32. The Great Divide
Smart excavators with GPS do a lot…
Return-to-dig
Inches of resolution
…And cost a lot
Manual excavators
deliver a bargain…
…What happens when
your skilled operator is
out sick?
39. Mining--Variable Speed Flow
(and don’t forget Oil & Gas mud pumps!)
Fixed-speed pumps with valves
to control flow.
• Pressure jump creates heat
• Any water vaporizes
• Things go boom
46. And Budget-Friendly Performance?
Semiconductor fabrication – more for less
Cost of operations versus cost of acquisition
Modest outlay, big boost
47. Conclusion (or back to your to-do list)
Closed-loop feedback can give
your product:
More bells
More whistles
Faster throughput
Better quality
Less downtime
Better cost/performance ratio
50. Thank You
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