Pepperl+Fuchs Blog

Ask an Expert Industrial Sensors-Episode 12

Posted by John Appleson on Thu, Sep 10, 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. How to configure the AS-Interface VAS-2A-K12 safety monitor with a SLC ASI master card for a SLC 5/03 CPU (Allen-Bradley)?
  2. Do you have cabling that can connect to an ML7 series photoelectric sensor at a distance?
  3. How to program the UB1000-18GM75-I-V15 ultrasonic sensor?
  4. Can the inductive sensor NCB10-30GM40-N0-5M be used in offshore or marine applications?
  5. Will the NBN40-L2-E2-V1 inductive sensor be 100% reliable in high humidity/ water spray areas?
Feel free to ask us your sensing questions, and we'll do our best to reply with the whys and hows of a particular solution.


John: Welcome to Ask an Expert! Hi, this is John Appleson, Marketing Manager with Pepperl+Fuchs. Today, I'm joined by Zach Steck. Zach works as an Application Engineer here at Pepperl+Fuchs. So welcome, Zach, and thanks for being here!

Zach: Hi John, thanks for asking me.

John: Ok, the first question asks about how to configure the VAS-2A-K12 AS-Interface safety monitor with an SLC ASI master card, for an Allen-Bradley SLC 5/03 CPU. Can you please explain?

Zach: This safety monitor is configured using the VAZ-SW-SIMON+ software. There is a trial version of this software available for download from our website. The full version would need to be purchased. The monitor connects to the PC using the cable model VAZ-SIMON-R2. Then you can create your safety network. If  you are simply replacing a failed K12 safety monitor, you can use the RJ45 jumper: VAZ-SIMON-RJ45, to transfer the configuration from the failed unit to the identical replacement. Further information on this procedure can be found in our AS-Interface maintenance and troubleshooting guide (PDF).

John: This next customer is trying to detect the presence of ten stainless steel u-bends in a product transfer panel, which is located about fourteen inches away from the sensor. However, the PLC is approximately 175 feet away from the sensor. The customer has selected an ML7 series retroreflective photoelectric sensor, and is asking if we have cables that would connect to the PLC at that distance. Or, if we have an option to use a signal repeater? Zach, would you share your thoughts on this?

Zach: I would not be too concerned with a cable length of 175 feet with a digital output sensor, assuming there is not a lot of electrical noise in the area. For this length, our best cabling option would be a 100 meter spool of raw cable, and the addition of a field-attachable connector to mate with the sensor. We do not offer any signal repeaters for this type of output, but it would not be necessary in this case.

John: Zach, this customer is using a UB1000-18GM75-I-V15 ultrasonic sensor to record the deflection of a rotating cylinder as it is rotated and heat is applied. The customer wants to know if they need to set up the initial distance with a program cable, or if they need a cable to connect to the sensor. If they do, what is the model number of the cable they need?

Zach: The UB-PROG 2 programming unit is not mandatory to adjust the range on this ultrasonic sensor. It also features a Teach-in input which allows you to configure your analog limits by connecting this input to the DC plus or DC minus of your power supply. This procedure can be found on the data sheet. The UB-PROG 2 does make things a little easier, though, as it features a push button design. This sensor is a quick-disconnect type, so it would require a cable for powering the sensor. An example model is V15-G-2M-PVC, for a 2 meter length.

John: This next customer wants to use the NCB10-30GM40-N0-5M inductive sensor in a classified area where it will be exposed to harsh environmental and offshore conditions. Zach, what are your thoughts on this?

Zach: The NCB10-30GM40-N0-5M is GL approved for use in offshore or marine applications, so it would be suitable for these environmental conditions.

John: OK, here's another inductive sensor question. This customer would like to use an NBN40-L2-E2-V1 inductive sensor. He states that the environment is very wet, and the sensor would be exposed to water spray and high humidity. He'd like to know if the sensor would work reliably 100% of the time in this environment.

Zach: The NBN40-L2-E2-V1 has an IP protection rating of IP69K, which is protection against high-pressure, high-temperature washdowns. I would not foresee any issues using this sensor in the described environment. However, this sensor is a quick-disconnect type, so you'd want to ensure that the cable matches the IP protection and rating of the sensor.  

John: Well, that concludes this segment of Ask an Expert. I'd like to thank Zach for joining me today, and thank our audience as well.

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Topics: Inductive Sensors, Ultrasonic Sensors, AS-Interface, Photoelectric Sensors, Ask an Expert

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