Pepperl+Fuchs Blog

Rotary Encoders are Everywhere!

Posted by Nick Ferguson on Wed, Oct 01, 2014

Have you ever entered an elevator and realized that the elevator cart was not level with the floor? Have you ever seen a conveyor system at the airport? What about measuring revolutions per minute or the actual CNC or robot position? What do all of these have in common? Rotary encoders!

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Topics: Rotary Encoders

What Are Rotary Encoders?

Posted by David Collica on Wed, Jun 04, 2014

I’ve never been in contact with one before!

Have you ever come across a rotary encoder? Do you know what it does? Rotary encoders are used in everyday machinery. The word rotary means rotational motion. This device operates by detecting the rotation of a disk turning around an axis. Here is some information I found that helped me gain knowledge that will also help you understand.

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Topics: Rotary Encoders

Industrial Sensors - Understanding the Push-Pull Output

Posted by Zach Steck on Thu, Oct 03, 2013

When you are browsing through various industrial sensors in a catalog or online, you may encounter a signal output listed as push-pull. A push-pull output is a 4-in-1, meaning that one sensor can be wired to provide four different output signals.

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Topics: Rotary Encoders, Ultrasonic Sensors, Photoelectric Sensors

Print 2013 is Here! #print13

Posted by Tim Cicerchi on Fri, Sep 06, 2013

The PRINT 2013 show, one of the most important printing & publishing tradeshows in United States, happens only once every four years. Don’t miss out. Everyone in the global printing industry comes to this show. Exhibitors show off their commercial printers, converters, and collating machines. Book binders and publishers attend to see what new technology is out there. And Pepperl+Fuchs' sensors are distinctively obvious everywhere you look.

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Topics: Rotary Encoders, Ultrasonic Sensors, Photoelectric Sensors, Positioning Systems

How Do I Use a Cable Pull?

Posted by Sean Miller on Tue, Aug 20, 2013

Types of rotary encoders that work with cable pulls

Cable pulls are devices used to measure the distance traveled on a piece of equipment. You connect cable pulls to a rotary encoder that rotates around a shaft. The encoder sends output signals to a controller. With the data gathered from these signals, you can track the linear distance that the object connected to the cable pull is moving. How accurate this measurement is depends on the pulse count of the rotary encoder.

We offer cable pull models in two sizes. The cable length dictates which drum size and housing size to use. Use a larger housing to fit the longer cable lengths. Cable lengths are designated by the last two digits following SL30. Cable lengths of 1, 2, and 3 meters use the 80 mm x 80 mm housing size. Longer cable lengths use a housing size of 130 mm x 130 mm and up. The specifications list our cable pulls as having an IP65 degree of protection. However, this degree of protection applies only when you have an encoder attached to a cable pull, since there is a seal inside the cable pull. Figure 1 shows a rotary encoder connected to a cable pull.

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Topics: Rotary Encoders

Safety Encoders — the Next Step in Creating Safer Machines

Posted by Helge Hornis on Thu, Aug 01, 2013

Rotary encoders with integrated functional safety

Historically, functional safety was based on an all-or-nothing approach. If safety devices such as e-stops, door switches, and light curtains were in the released state, the machine was running. When you pushed an e-stop or interrupted a light curtain, the machine shut down.

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Topics: Rotary Encoders, Applications, AS-Interface

Why Would I Use a NAMUR Output Sensor?

Posted by Robert Pasho on Thu, May 30, 2013

Proximity sensors and encoders can have NAMUR output

NAMUR is a type of sensor output that gives an on or off indication. There are different reasons why you may need a NAMUR sensor. I will go through some of them here.

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Topics: Rotary Encoders, Terminology, Inductive Sensors, Capacitive Sensors, Photoelectric Sensors, Approvals/ Certifications, Magnetic Sensors

Speed Monitoring Options Using Industrial Sensors

Posted by Sean Miller on Tue, May 14, 2013

In certain applications with spinning components, keeping track of the speed or revolutions per minute is vital for controlling equipment and processes. Pepperl+Fuchs offers several solutions to achieve this.

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Topics: Rotary Encoders, Inductive Sensors, Photoelectric Sensors

How to Install the MNI40 Incremental Encoder

Posted by Zach Steck on Tue, Apr 30, 2013

The MNI40 magnetic incremental rotary encoder is the most compact encoder in the Pepperl+Fuchs product line.  Even with its small size, this incremental encoder is extremely durable and is not affected by environmental conditions. It has an IP67 protection rating, so you can expect reliable performance in dirty, dusty, or even wet conditions.  It also has a large temperature range from -40 °C to 100 °C and has proven itself with a long service life at these extreme temperatures as well as operating at high speeds.

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Topics: Rotary Encoders, Troubleshooting

5 Reasons to Choose a Rotary Encoder

Posted by Robert Pasho on Thu, Mar 28, 2013

Instead of laser displacement sensors

When you’re looking for a solution to a problem or application, there may be a few different ways of solving it.  How do you decide which one to use? You usually try to find reasons for why you would use one device over another. I will give you 5 reasons why I would choose a rotary encoder over laser displacement sensors.

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Topics: Rotary Encoders, Photoelectric Sensors, Laser Sensors

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