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Pepperl+Fuchs Blog

Efficient Control Cabinet Wiring with Daisy Chains

Posted by Sonja Armbruster on Fri, Oct 14, 2016

Conventional wiring of hardware components inside a control cabinet can be a complex task: Establishing separate connections of single modules eats up time and precious cabinet space. An effective way to minimize the effort is to interconnect multiple modules using a cable with pre-configured wiring links.

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Topics: Cables/ Cordsets, AS-Interface

Ask an Expert Industrial Sensors: Episode 16

Posted by John Appleson on Fri, Mar 18, 2016

This episode of Ask an Expert for industrial sensors examines and provides answers to interesting sensing questions we've received from customers just like you. We explore and answer these questions:

1. Replacing a diffuse mode photoelectric sensor that is tied to an AS-Interface module.
2. Do you have MTTF data for the NMB1.5-8GM35-E0-FE inductive sensor?
3. Can diffuse mode sensors be used to detect metal drums in a hazardous area?
4. How to choose the correct power supply for RFID control interface unit IC-KP-B17-AIDA1?
5. Where on your website can I download AS-Interface system wiring guidelines and connection diagrams?

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Topics: Inductive Sensors, Cables/ Cordsets, AS-Interface, Photoelectric Sensors, Ask an Expert, RFID

Ask an Expert Industrial Sensors - Episode 8

Posted by John Appleson on Wed, Apr 15, 2015

This episode of Ask an Expert for industrial sensors examines and provides answers to interesting sensing questions we've received from customers just like you. We explore and answer these questions:

1. Magnetic sensor MB60-12GM50-E2: What is the performance of this sensor like if the sensing surface is less than 10 mm away from the sensor?

2. How does the magnetic field sensor 41FY1 work? Is it a two-part magnetic sensor?

3. What is the required target size for the inductive sensor NJ5-18GM-N-5M? Will a 1/8 in. wide keyway that is .03 in. deep on a 4 in. diameter shaft work?

4. I'm trying to connect an NBB5-12GM50-E0-V1 inductive sensor to a PLC, but I am unable to make the two work together correctly!

5. Do you have cable connectors? What about for specialty cable types?
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Topics: Inductive Sensors, Cables/ Cordsets, Ask an Expert, Magnetic Sensors

Male and Female Connectors for Industrial Sensors — Field Attachables

Posted by Patricia Stafford on Wed, Jul 30, 2014

Find compatible solutions for your application

When it comes to making sensors work for you, it’s all about getting connected. And, knowing the right connections to make depending on your industrial needs makes all the difference.  

Field-attachable connectors allow you to put together the perfect fit. The power of these simple parts is in their adaptability to customer needs. Their tailored design provides individual solutions for existing wiring systems.

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Topics: Cables/ Cordsets

Protect your Industrial Cables and Cable Connectors!

Posted by Tim Cicerchi on Tue, Apr 15, 2014

Pepperl+Fuchs' standard 22 AWG cordsets are rated for 4 A. But most main enclosures have a power supply that is much larger than the rating of individual industrial cables and devices.

So, what if there's a situation where an output overloads, pulling 10 A or 20 A through a 4 A rated cable? The wires will start to heat up, the voltage will drop, and the cable connectors may get damaged. The worst case scenario could be a fire.

To protect the end devices, fuses or breakers are used to open the circuit in the event of cable or device failure. To do it right, you really have to fuse every sensor or fuse groups of sensors so the current limit to the cables is below the 4 A limit.

Overload or short-circuit protection must also be considered with industrial bus systems. AS-Interface is an industrial bus that provides power and communication to modules on the network. This network is designed to be completely field mountable so the use of fuses or breakers for every bus drop may not be convenient. If a power supply that is rated 4 A or less is used to power the entire bus, then no problems exist. The drop cables can’t be overloaded because the power supply can’t provide that much current.

Alternatively, what if you use an 8 A AS-Interface power supply and a 12 A auxiliary power supply? We have an auxiliary power cable with larger 13 AWG conductors that are rated for 12 A. It is possible for the drop cables off the AS-Interface trunk to be overloaded. What to do? You can’t put fuses in all the drop lines; there's nowhere to put them. And the fuse itself may interfere with AS-Interface communication. You could just mount everything to the trunk line so no drop cables are used at all, but that isn’t convenient or practical.

A simple solution comes with our series of PTC-protected drop connectors.
 
The idea is to limit the current that is delivered to the drop in order to protect the cable. With these cable connectors, the current is limited to 1.6 A, which is far below the 4 A cable limit. Once the short is removed or the end device is repaired, the drop cable will function normally and your network will come back up and run. LED indication on these protective devices will tell you where the short is so the problem can be easily resolved.

These drops are IP69K, washdown rated for use in the harshest conditions, and feature a 1 m pigtail with a straight M12 connector. They are available in an AS-Interface version and an AS-Interface/auxiliary version. Depending on quantity, we can provide additional versions with different connector styles and drop cable lengths.

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Topics: Cables/ Cordsets, AS-Interface

6 Steps to Selecting a Fiber Optic Cable

Posted by Zach Steck on Wed, Mar 19, 2014

When selecting a fiber-optic cable, it is not as simple as “What fiber cable goes with this sensor?”  There are multiple factors that contribute to selecting the appropriate fiber-optic cable for your application. 

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Topics: Cables/ Cordsets, Photoelectric Sensors

Which Cordset or Cable Material Should I Select for My Application?

Posted by Zach Steck on Fri, Feb 07, 2014

When it comes to specifying a cable to use with your recent sensor purchase, you may notice a handful of options in regards to the cable quality and jacket material. You will see model numbers containing letter combinations, such as PUR, PVC, POC, PUR H/S, and even STOOW. What do these letters mean?  How do I know which one to select for my application?

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Topics: Cables/ Cordsets, Sensor Accessories

What Cordset Do I Need?

Posted by Sean Miller on Tue, Oct 29, 2013

Pepperl+Fuchs offers a variety of cables for our quick disconnect sensors, and most of the time, any cable with the appropriate connection will do. But depending on the application, a specific cable type might be needed.

Factories that use sensors for general-purpose applications such as bottle counting and part detection will likely be fine using a standard PVC or polyurethane cable, as these are the most readily stocked and easily affordable cables for use with quick disconnect sensors.

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Topics: Cables/ Cordsets, Sensor Accessories

My Old Industrial Sensor has 4 Pins

Posted by Tracy Molnar on Thu, Oct 17, 2013

…and the replacement only has 3 – can I still use it?

It’s always a good idea to double-check that a different-looking industrial sensor will work as a replacement for your currently-installed part, because looks can be deceiving.  Take for example the question above regarding the number of pins in a sensor’s connector. 

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Topics: Inductive Sensors, Cables/ Cordsets, Capacitive Sensors, Ultrasonic Sensors, Photoelectric Sensors, Ask an Expert, Magnetic Sensors

Top 3 Questions About AS-Interface Accessories

Posted by Tim Cicerchi on Fri, Sep 27, 2013

AS-Interface was designed for factory automation.  One of the requirements was quick installation to a flat cable.  The flat cable allows a module to pierce directly into it.  If for some reason in the future you need to move the module or add another module, it is very easy to make additional connections to the flat cable.

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Topics: Cables/ Cordsets, AS-Interface

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