Questions tagged [industrial]

Questions related to electronic circuit design in industrial environments where environmental conditions such as temperature, humidity, vibration, noise are significant and require careful consideration above what would be needed in commercial settings. Includes questions on Industrial Grade parts.

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1answer
49 views

Fuel Level Sensor Safety

I'm looking up fuel level sensor manufacturers (Omnicomm, Technoton etc) and noticed that a lot of them offer capacitive fuel sensors for all types of fuel. However, based on my understanding, ...
4
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1answer
108 views

Why do vibration sensors use a negative voltage?

I've started looking at some industrial vibration monitoring sensors for a project and it seems like there's a number of brands that use negative outputs voltages. Many are eddy current sensors with ...
2
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1answer
83 views

Legal for trade weighing using a PLC

We have a project where we need to weigh product material for selling to customers. This is a project installed in Europe. This is an industrial product line performing material manufacturing, ...
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3answers
63 views

RMS power and phase angle control

We have a piece of industrial equipment using a phase angle controller (PAC), and are having some issues calculating the RMS power used by the load. Personally I am of the opinion that you measure ...
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3answers
52 views

Battery systems for 440v industrial motors

Are there systems utilizing batteries to start large (25hp - 50hp) 440v 3-phase electric motors, thereby eliminating spikes to the supply grid?
0
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1answer
62 views

different types of smps [closed]

I need a 12v 5A power supply for a heating element. I found out there are two main types of smps: first one is mounted in a metallic case and usually cooled by fan (in some websites it is called "...
0
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1answer
66 views

Is there a SSR like device that can switch at kHz frequencies?

I'm designing an industrial control system that incorporates several peltier devices. As I understand it, these devices are more efficient when driven with a constant voltage, vs being cycled every ...
0
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3answers
93 views

What could be the reason for chip capacitor failure due to silicone potting?

Is silicone potting of PCB board beneficial or risky? What could be the best material for encapsulating a power supply board? I used 2 part mixed silicone potting compound for encapsulating a ...
0
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1answer
31 views

Fusing on dual voltage industrial device

Please forgive me if this question has been asked before. I am designing a heating device that will be sold to industrial consumers. In our past designs we have had multiple versions of the same ...
2
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1answer
101 views

Interpretation of EN 61000-4-5 Surge requirement on a DC Power Port

I am trying to understand how to treat the DC power port on my industrial device (read: will be used in CNC machine shops and industrial processing plants and the like) should be tested according to ...
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2answers
74 views

Are transmitters always required for industrial sensors (4mA-20mA)?

I am designing a device that takes in various types of industrial sensors. Initially, I had a transmitter to take the PWM signal and convert it to 4mA-20mA. After reading lots of articles about the ...
0
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1answer
89 views

480v motor, running like a bat out of hell.

I have a 480v motor that is connected to an auger. When the auger fills up, the torque from the motor continues to drive it and then just snaps the shaft clean in half. I am looking to build ...
0
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2answers
252 views

Raspberry pi for extreme outside using [closed]

I want to use raspberry pi for a vehicle park project. The Raspberry will stay in a metal box and it will never power off. The metal box is waterproof but its in middle of a empty area so it will get ...
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1answer
51 views

HMI design industerial [closed]

I'm planning to design HMI for a product that i want to design. but, I've questions that I couldn't find answers to: 1- TFT or OLED screens, are they reliable? do they last for > 10 years? (ok, yes ...
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1answer
251 views

EMI/Y-capacitor in inverter phase outputs?

Is it good or even used practice to filter out common-mode EMI in 3-phase industrial inverter (IGBT) phase outputs using phase-to-earth Y-capacitors? High du/dt might limit the lifetime of such ...
3
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1answer
2k views

How are terminal blocks depicted in a wiring diagram?

I have started to document the electrical system in a custom machine that we own. I'm using TinyCad for the schematic and that's working OK. I also want to create wiring diagrams to represent the ...
1
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2answers
90 views

What is a “current load” on a 24 V input used for?

The MAX14821 (datasheet) is a 24 V IO device that features selectable current loads for use in actuators on the inputs. What would this be used for? It's not just ...
2
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2answers
273 views

Can you use a LED driver (WS2801) for a 4-20mA control loop

I am trying to make a 4-20mA control loop on a home made sensor that will connect to a PLC. I was using Texas Instruments XTR111AIDGQR, but it is too expensive, costing $1.72. so want to try switching ...
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0answers
362 views

Has Anyone Ever Gotten a Delta DPS-400AB-5 A PSU to Work Standalone?

I got my hands on a Delta Hot-Swap Server Power Supply that's capable of 400W or 33A on the 12v rail. I've been tinkering with it for a few hours now and can't seem to find what pins are for the Pson ...
0
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0answers
295 views

Reading industrial magnetic length sensor (DRO)

My brother broke his LCD display on his saw, it is a simple display put on conductive silicon strip showing numbers and some status icons. They priced the replacement for about 500$, which is kind of ...
1
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1answer
352 views

How to use DIN rail jumpers

I just discovered DIN rails for industrial kinds of loads (10's of amps). I'm using these parts, and am wondering whether I should jump on both sides. It seems like more connections would mean lower ...
14
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4answers
5k views

ESP8266 - is it used in real industry? [closed]

I wonder if ESP8266 or similiar (ESP32 for example) modules are used often in real mass production in medical/automotive/military/households industries. I see many DIY projects with it, but there is ...
1
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1answer
175 views

Industrial level input protection

Take for example a Siemens S7 24V digital input. I read a couple of articles and also questions on SE and it seems there should be (maybe integrated, maybe as a discrete part): optocoupler to ...
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1answer
121 views

What Resources To Learn About AT89S52 [closed]

Can anyone tell me about some books or sites for video tutorial which are specific to Atmel 89S52 because I googled and I am not getting any video tutorial,books or ppt except datasheet to learn about ...
0
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1answer
759 views

Wire sizing when connecting multiple motors

I'm connecting two electric motors and an electric heater in parallel together in a circuit, all three phase. Electric motor 1 has a rated current of 20A, motor 2 is rated 2.5A, and the heater is ...
1
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0answers
742 views

Low-pass digital filter for 0-10 V, 4-20 mA input

I'm looking for a little direction or recommendations in how to select and implement a low-pass filter in software as my background in signals and systems is quite weak. In particular, I'm interfacing ...
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6answers
3k views

Why is zero represented by 4mA in 4 - 20 mA industrial control systems?

Ideally, to drive a controller the required current must be just above 0 mA. However, practically we consider readings only taken from 4 mA as the valid data sets. Now, my question is why do we take 4 ...
37
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10answers
15k views

Why is the temperature range of industrial and military products so high?

From Wikipedia the common temperature range for electrical components is: Commercial: 0 to 70 °C Industrial: -40 to 85 °C Military: -55 to 125 °C I can understand the lower part (-40°C and -55°C) ...
2
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1answer
3k views

What is a corner-grounded power system?

Another translation, another question. Original German: Antriebssysteme dürfen nicht direkt an TT-, IT- und an TN-S Netzen mit geerdetem Außenleiter betrieben werden! Rough translation: Drive ...
0
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1answer
428 views

connector recommendations for CAN bus and power supply to distributed PLCs

I'm looking to build a distributed PLC system with up to 20 devices spread throughout a building, controlling lights, HVAC, irrigation, security, etc, and want recommendations on what connector to use ...
0
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1answer
3k views

Waterproofing electronics by dipping into polyurethane or lacquer

I've been looking at and thinking about a few related topics... https://arduino.stackexchange.com/questions/9163/using-arduino-for-industrial-process Reliability of the Arduino platform for ...
0
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1answer
973 views

How can computer replace PLC in industrial machines? [closed]

I am having internship in a semiconductor manufacturing company and learning about machines in front-end section. Technicians say that the machines all use computers as they process multiple complex ...
2
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2answers
960 views

DC Forklift high current power supply

I have an old 36v DC battery hydraulic indoor forklift. The batteries are 23 years old, and no longer hold a charge for more than ten minutes, although they are a good counterweight. I have tried ...
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0answers
40 views

Robust central stop in harsh conditions

There is 5 kilometers long cable with numerous (possibly many) central stop buttons in series. The cable is laid around machinery and other cabling at a production plant. The buttons are SPST-NC (...
32
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7answers
3k views

Is circuit design based on min/max values good practice?

Time and again I am arguing with a colleague of mine about the question above. When I design a circuit for mass production (> 10k/a) I want to make it robust against every possible variation of ...
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2answers
7k views

Hall Sensor NJK-5002-C Configuraion

Here is the link to the sensor I am talking about. Now the problem is that according to the label it has as shown, it says that Brown wire goes to V+, Blue wire to V- and the Black wire goes to Signal....
3
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2answers
8k views

Why is distribution voltage 480V but equipment is usually only rated for 460V?

In the US, distribution voltage is usually 480V. However, most industrial equipment is only rated for 460V. Why is this the case?
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2answers
2k views

Soft start… for a transformer

so I have a transformer (3kva 120vac -> 240vac) that runs great but blows the breaker occasionally on startup. So I'd like to add a soft start. This is an industrial control environment so I could ...
4
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2answers
866 views

Industrial equivalent of rapid prototyping hardware

If I want to automate something at home, I can use a Raspberry Pi or Arduino to hookup some sensors and put the business logic on the chip. Internet-of-Things-style, I can even read those sensors on ...
1
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1answer
472 views

position control mode of industrial servo motor

I have searched alot about industrial servo motors and their application but the problem is about the pulse command used in position control mode, can I use a 555 timer for the generation of such ...
0
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1answer
777 views

Need to connect neutral wire?

In 3 phase machines have L1,L2,L3,N and PE(Protective earth).some time Neutral wire is not connected to the power supply.But,Machine have a neutral wire.What will happen if not connect neutral wire?...
2
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4answers
2k views

Automation schematic software for linux

Is anyone aware of a good linux program for drawing automation schematics? Not PCB design, circuit simulation and fine electronics. Industrial automation. Example: I looked at a couple of different ...
0
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1answer
277 views

High power power regulators - thyristor regulator?

I am currently working on a system design that intends to control heating in different zones. All zones in total is calculated to use approx 340kW (230V). This will be divided into 11-12 smaller ...
10
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8answers
3k views

How to check that blast furnace is full?

I'm working on blast furnace oven, I need to check if it's full with materials in levels one , two and three as shown :- The main problems: It's very hot as you see in the picture (200°C to 900°C),...
0
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3answers
628 views

Parts which conduct electricity through a rotating shaft

What are those mechanisms called which are designed to conduct electric current through a rotary shaft? In the image below, of the interior of a large mixer, there is a set of brushes tracking ...
2
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1answer
139 views

Connection between metal enclosure and 0V in industrial system?

I have been testing an industrial system. I have developed a test device to properly test this industrial system. I am currently finalizing the test device and have put it in an enclosure to EMC proof ...
3
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4answers
13k views

Switchgear vs. power distribution center (PDC) vs. motor control center (MCC) - what's the difference?

Here's what I've observed so far: All three contain circuit breakers. All three supply power to motors, although switchgear and PDC-fed motors are obviously higher-voltage, larger motors. ...
5
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5answers
4k views

Digital logic input with very wide input voltage range

We are developing an industrial controls product that will be used to monitor the presence or absence of voltage ranging from 5V to 480V. Since the unit will be generic and programmable, this input ...
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2answers
656 views

Industrial RF replacement for Xbee based UART communication

I have used Xbee's several times and I am working on a basic project which involves multiple MCUs talking to a central MCU and sending some updates such as Temp, GPS and etc... Very basic setting ...