Questions tagged [wiring]

How wires connect to terminals and to each other; coloring and organization schemes; appropriate wire selection and installation techniques

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How do I wire a permanent magnet synchronous motor?

I salvaged this motor from a washing machine with a view to using it to power a bench sander in my workshop. There are three wires red,white and blue in addition to the green/yellow ground wire. Given ...
Donal's user avatar
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68 views

Can anyone explain this unusual wiring for a 3 gang switch? [closed]

1= porch light 2= hall light 3= future? 3 sets of wire in at bottom 3 sets of wire at top All 6 common are nutted together. All 6 grounds are twisted together, no pigtails. #1 hot in is connected to ...
Roger Thompson's user avatar
2 votes
2 answers
68 views

Need help with AC relay wiring

Got the following relay Taiss/AC 220V (YJ2N-LY AC 220V) A picture and a wiring diagram are below. Given: AC 230v constant L input AC 230v signal L input N input , How should I wire the relay to get ...
Alex Smirnoff's user avatar
0 votes
2 answers
45 views

New to PCB design: Does routing a wire on a 2nd layer underneath a pad connection effect cause a connection issue?

I am designing a pcb with minimal room approximately 5.5mm wide, the power supply comes from one end of the board. The top layer has pad connections that take up most of the width of the board leaving ...
J_KILEY76's user avatar
3 votes
1 answer
301 views

How to connect to these terminal blocks?

I have this power supply (actually part of a control box for a robot arm) which has terminal blocks, but most of the screws seem complete inaccessible due to how closely the blocks are placed together....
Mark's user avatar
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SPICE problem: Converter V/I scheme not working properly

I'm having a small urgent problem with a project: I don't understand why, when I connect the bottom left amplifier from the 4th pin to R2 (180 Ω), Proteus crashes. What am I doing wrong and what would ...
AndrewDan's user avatar
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45 views

How is TN-CS safer than TN-C

Why not just run two PEN wires? Can you explain a situation in which having wires with separate and designated PE, N functions is safer than having two PEN wires? Or is that basically where all of the ...
arctiq's user avatar
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1 vote
1 answer
126 views

Relay with bypass switches haywire

The lamps are normally operated by relays. When the relay or relay driving circuit fails totally, the bypass switches are to be used as fail-safe to operate the lamps. The key operated switch which is ...
Kumaran's user avatar
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How can I wire the speaker given in this schematic? Does the light green addition show it correctly?

Taken from this video. Will it work correctly with the speaker connected as shown in green?
Alex C's user avatar
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1 answer
96 views

Usage of Spanish word "Tresbolillo" in electrical distribution

I am from Spain, and in this country is very common to use the word "Tresbolillo" to designate the distribution of electrical cables but not for a stringing connection, as it says in a ...
Daniel Prieto López's user avatar
2 votes
1 answer
100 views

What is causing half of my Christmas tree lights to go out? [closed]

I have two strands of well used Christmas tree lights with incandescent bulbs. One is red and white, the other is multicolor. Both of these strands are only illuminating half of the bulbs in the ...
Chris Fernandez's user avatar
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1 answer
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Control single-phase AC motor forward and reverse with relay

I have a single-phase AC motor that I want to control with a forward/reverse motor direction controller I bought from Amazon. The motor I have bought in Peru so I don’t have a link, however the wiring ...
Leroy Boocock's user avatar
1 vote
2 answers
222 views

How are these LED Christmas lights wired?

I have several light strands that I'd like to effectively seen cut in half, and make two shorter lengths out of, but I've only succeeded in seriously confusing myself so far. The lights I'm working ...
Demon Seed's user avatar
0 votes
1 answer
25 views

Dual Input Signal Conditioners and 4-wire RTDs

I am new to electronics/sensors and am working on integrating two RTDs into a DAQ for a school project. I want to use an Omega TXDIN70 signal condition to interface between the DAQ and RTDs, as it has ...
gran011's user avatar
0 votes
2 answers
125 views

Reading different CAN bus protocols with one interface

We have a system with multiple CAN bus protocols. All are running at 250 kbit/s. These are NMEA 2000, J1939, and CANopen. These systems do not have to communicate with each other, but I would like to ...
Arne123456's user avatar
1 vote
0 answers
76 views

Understand interphone 4+N wiring and arrow symbol

Could anybody help me understand the attached interphone 4+N wiring? specially the arrow symbol crossing a two segments right angle, what it means, what is it connecting? I have an issue with an ...
Rezzonics's user avatar
2 votes
1 answer
167 views

Doubled-up LED lamp wiring found [closed]

Can someone explain what kind of LED lamp this is and why it takes two live wires and two neutral wires? I am based in the US. I can’t find this anywhere online. There's no real identifier seen on the ...
Paris Char's user avatar
9 votes
6 answers
2k views

How can I bundle extremely thin wires?

I have a small, sensitive pressure transducer with extremely thin wires. I frequently install and uninstall this transducer and route the wires through various small holes. The overall length of the ...
nwsteg's user avatar
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1 answer
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Which motor wire corresponds to which phase

I have a three phase motor having 3 wires: red, black and white. But the product datasheet does not tell us which colour wire corresponds to which phase.
Apurva Reddy's user avatar
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0 answers
66 views

Graphical LCD With Atmega64

I have ATMEGA64 and LCM240128, The wiring is as below: And my code is ( I'm using codevision): ...
Mojtaba Miraki's user avatar
3 votes
0 answers
57 views

Ground to L1 in 3-phase have almost 0 V potential

I am in Peru and was helping check ground rod to line and neutral and see higher than one leg to ground voltage. This is at a plant with 3 phase power 220/440 volts. The local utility doesn’t provide ...
Dososo56's user avatar
2 votes
2 answers
103 views

RS485 wiring - longer or branches?

I read many articles about the RS485, but I still have some questions. What is the better option? Assuming that the distance from one point to another is the same in both cases and the wire is made ...
Tomas's user avatar
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1 answer
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Help with relays and spot switches

I’m working on a shuttle bus and need help wiring the doors to open and close with the limit switches acting as stops (all the way open, and all the way closed). Stupid me cut out the old wiring, ...
Michael Kisner's user avatar
1 vote
2 answers
122 views

Identifying various parts on a DC motor from a hybrid vehicle ABS pump

I have a DC motor that I pulled off of an ABS pump from a hybrid vehicle. My original purpose was to first clean the dust from brushes off. Then I reinstalled it into the ABS. It worked for a while ...
Mr305worldwidee's user avatar
0 votes
3 answers
197 views

Tips for soldering some wires into a PCB

I need to solder some wires into a PCB, im dont really master soldering small pads or pins, so i need some help. I have a question too, those pads are already tinned, soldered, so can i apply some ...
tote46's user avatar
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0 votes
1 answer
50 views

Measuring voltage on an edison outlet in a hybrid vehicle

Forgive me for what may be a fairly basic question, but I'm a student and I just happened to run into this while doing a recent project. I own a hybrid car, and in the cab is a 400w inverter with a ...
SourceFour's user avatar
1 vote
3 answers
375 views

Coaxial quality and frequency rating

Context I aim to start playing with RF and the first thing I wish to do is some EMI tests. I've been watching YouTube videos on the matter as you do, and I've seen plenty of people using SMA ...
TrisT's user avatar
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2 votes
1 answer
185 views

NTC wire in a replacement LI-ion battery has a different color [closed]

I am replacing a battery pack in a speaker. It is a Li-ion 18650 2600 mAh 7.4 V. I got a replacement from a shop in China claiming to be local. The replacement has an NTC and three wires just as the ...
hk1020's user avatar
  • 23
1 vote
2 answers
196 views

What is the best way to connect lots of wires together?

I need to power 84 12 VDC devices. Each pulls 0.5 A max. Instead of 84 wall warts, I'd like to create a DC bus with two (redundant) power supplies. What is the best way to connect together 84 small ...
Pascal's user avatar
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0 votes
1 answer
65 views

How to connect three wires in electronics (extra low voltage) without PCB or soldering

I need to share 24 V (max 2 A) coming into my electronics enclosure between two consumers (a fan and an electronic module). The external connector is D-sub, internally I use crimped contacts, so no ...
texnic's user avatar
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3 votes
3 answers
222 views

Fixing an 0.5 mm pitch, 18-pin FPC tear

I accidentally tore my Lego EV3's LCD FPC (Flexible Printed Circuit) while opening it. The FPC is a 1.0mm 18-pin-pitch FPC which near the end is converted to a 0.5mm one. I found this post in the ...
pythoncat's user avatar
1 vote
1 answer
140 views

How to connecting two ADXL345 (GY-291 modules) to one Arduino UNO R3 by using pin jumper?

I am having some trouble in connecting two independent ADXL345 (GY-291 modules) to my one Arduino UNO R3. Before this I tried using one ADXL345 and it works perfectly, but in my project I need to use ...
Airidz's user avatar
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0 votes
1 answer
112 views

Stator wiring in Robin RGD351 not matching manual

I am currently trying to figure out why a Robin RGD351 single phase, self exciting has stopped producing power. I have gotten the manual (https://www.manualslib.com/manual/988411/Robin-Rgd351.html) ...
Yanick Salzmann's user avatar
0 votes
1 answer
50 views

What wire to use for about five 5 V 1 A continuous servo motors in parallel?

I am not particularly familiar with electronics and circuits in general although I do have some basic experience. My concern is that to carry enough current for all five motors I would need at least 5 ...
James Taylor's user avatar
1 vote
1 answer
89 views

How to make sketch-like wiring diagram

I am wondering how to draw such connection diagram in sketch-like style as on belowe picture? I have designed some boards in KiCad and I would like to make wiring around my PCBs in style similar to ...
Madras's user avatar
  • 136
2 votes
1 answer
177 views

How do I connect an Ethernet Jack to LAN8720

I'm looking for a way to correctly connect an RJ45 socket to a LAN8720 chip, but cannot seem to find much information in the datasheets. Here is the datasheet for the LAN8720. And here is a data ...
JohnFahey's user avatar
0 votes
1 answer
39 views

Pushbutton 120 V switch

Can I use this push button switch for a house lamp that runs on 120 V? If so, do I need a contactor or can I wire it direct?
Jet813's user avatar
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8 votes
3 answers
1k views

USB cable wiring inside the device

I'm designing a compact product consisting of several independent PCBs, which all should be permanently connected via the custom USB2.0 hub inside the device. The required USB cables should only be a ...
dmivaka's user avatar
  • 83
1 vote
1 answer
213 views

How to properly connect oscillator circuit to amplifier?

edit v2: Schematics: The ic on the left is a 40106, and the thing inside is a Schmitt trigger with inverting output. In 'edit v1' below you can see a wiring diagram. edit v1: Rough schematics and ...
ssheep's user avatar
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1 vote
0 answers
20 views

Can I run a fuse block on different power supplies connected to the same terminals, depending on mobile vs. AC power availability?

I am wiring a trailer lighting system and I want to be able to run off AC power when parked at home, but run on a AGM deep cycle battery when AC power is not available. I've attached a drawing of the ...
MistreJ83's user avatar
1 vote
0 answers
32 views

NEC Wire Size for Neutral Question

I'm sorry if this is not the right place to ask this question. In my shop, I have a solid state phase converter that is creating three phase power for some of my machinery. It's fed by two 150 amp ...
Confundity's user avatar
0 votes
0 answers
51 views

How to protect signal routed via patch wire against EMI / RFI / other signals?

I have a delicate problem which I'm not sure how to solve properly due to my limited electronics education: I have an old computer system from the 90s which contains an additional module replacing its ...
Miro Kropacek's user avatar
1 vote
1 answer
231 views

How to directly wire a solar panel through the wall socket without a battery? [closed]

I apologize for this the multi-ponged line of questions. I am thinking, I can wire the solar panel to a pure sine wave inverter then use a extension cord with 2 male plugs, one going to the inverter ...
Justintimeforfun's user avatar
2 votes
3 answers
127 views

How to read this schematic correctly

This schematic will be used to wire a potentiometer and momentary on switch to a welder. The schematic states that there is a cable shield grounded to the connector. Am I correct to assume that this ...
Richtdow's user avatar
1 vote
1 answer
522 views

Rectangle Symbol in Electrical Diagram

I am checking a Nissan forklift wiring diagram and don't know what the rectangles with one and two diagonals are. I would appreciate any idea about this.
Henry's user avatar
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-1 votes
1 answer
61 views

Can I run my own cable wires? [closed]

I live down a side road that is not supported by my local cable company (they used to, but not enough people used the service to justify the maintenance cost), meaning that I cannot get fast, stable ...
Duel's user avatar
  • 109
3 votes
2 answers
328 views

What is the purpose of the capacitors in this motor controller? Why is one smaller than the other?

I recently purchased a few single phase 230V motorised hoists and I want to understand their wiring and how they work. I can more or less follow what's going on, I just don't fully understand why ...
Tomalele's user avatar
1 vote
1 answer
25 views

Hurst PAS, PBS Geared DC Step Motor

I am currently trying to determine whether a Hurst PAS, PBS Geared DC stepper motor is functioning correctly. While researching on the Hurst website, I came across a page that provides information ...
Angelo Gomes's user avatar
0 votes
1 answer
62 views

Can i safely use RJ11 and 24 guage wiring for hobby leds?

I would like to supply power to a bunch of LEDs (a dozen or so) on a model train layout. I would like each light to be modular, so I could easily unplug a building and replace it, etc. The LEDs are ...
nuggethead's user avatar
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1 vote
1 answer
86 views

Wiring a dual coloured LED by two different sources

I have a 12V dual colour LED strip that I am trying to power from two different power sources on a motorcycle: Source 1: Daytime running light (Always on) This is constantly ON and always on when the ...
Bach's user avatar
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