Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread dave engvall
Indeed!  Positional is critcal and useful. D On 5/12/22 2:07 PM, Gregg Eshelman via Emc-users wrote: Go traffic lights in Japan used to be blue. There may still be some blue ones in out of the way places. When the country adopted the international color standard for traffic light colors,

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread Gregg Eshelman via Emc-users
Go traffic lights in Japan used to be blue. There may still be some blue ones in out of the way places. When the country adopted the international color standard for traffic light colors, supposedly their department in charge of such things chose the bluest shade of green they could get by

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread gene heskett
On Thursday, 12 May 2022 08:09:46 EDT Robin Szemeti via Emc-users wrote: > And the new system is much better. Previously, when grubbing around in > the back of oily machinery, in poor lighting it was easy to get > confused with red yellow and blue wires ... the black/grey/brown > colour scheme is

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread Rob C
The colour change in the UK was one of the worst ideas ever! being faced with 3x brown wires and guessing which is L1, L2 and L3 is about as useful as a brush with no bristles! Red Yellow Blue / RYB always made sense to me as an on the tools electrician. neutral was always black. If I ever saw

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread Chris Albertson
On Wed, May 11, 2022 at 3:03 PM gene heskett wrote: > > I suppose in some circles that bleached red could be called brown. But > blue has never been ground on this side of the pond. Which is odd, in > electrical wireing, black is hot, white is neutral/ground, a static > ground is green. Inside a

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread Peter Blodow
Gentlemen, for clarification a few additions to the color (or coulour, for Andy) system in electricity supply, used in Germany (DIN and VDE) and most of Europe: - First, always keep neutral and ground apart! The FI switch is designed to trip at any connection between them, even in absence

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread Robin Szemeti via Emc-users
And the new system is much better. Previously, when grubbing around in the back of oily machinery, in poor lighting it was easy to get confused with red yellow and blue wires ... the black/grey/brown colour scheme is much easier to see ... errm? On Thu, 12 May 2022 at 10:52, andy pugh wrote: >

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-12 Thread andy pugh
On Thu, 12 May 2022 at 06:31, Philipp Burch wrote: > I could imagine that the colors are due to the usual coding (at least in > Europe) for AC circuits with brown=Phase (hot wire) and blue=Neutral > (cold wire). UK fixed household wiring used to be red for live and black for neutral. Then

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread Philipp Burch
Hi all! On 12.05.22 00:00, gene heskett wrote: On Wednesday, 11 May 2022 17:14:27 EDT Ralph Stirling wrote: Yes, european color code is brown=V+, blue=gnd, black=output. With NPN, load is referenced to V+, with PNP, load is referenced to gnd. -- Ralph I suppose in some circles that bleached

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread gene heskett
On Wednesday, 11 May 2022 17:14:27 EDT Ralph Stirling wrote: > Yes, european color code is brown=V+, blue=gnd, black=output. > With NPN, load is referenced to V+, with PNP, load is referenced to > gnd. > > -- Ralph I suppose in some circles that bleached red could be called brown. But blue has

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread Ralph Stirling
(EMC) Subject: Re: [Emc-users] Do pnp prox switches need a pulldown load R? CAUTION: This email originated from outside the Walla Walla University email system. On Wed, 11 May 2022, gene heskett wrote: > Date: Wed, 11 May 2022 16:43:59 -0400 > From: gene heskett > Reply-To: "En

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread gene heskett
; To: emc-users@lists.sourceforge.net > > Subject: [Emc-users] Do pnp prox switches need a pulldown load R? > > > > Greetings all; > > > > Peter in particular, > > > > This is my first try at utilizing a prox switch, and while the led on > > it r

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread Peter C. Wallace
On Wed, 11 May 2022, gene heskett wrote: Date: Wed, 11 May 2022 16:43:59 -0400 From: gene heskett Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re: [Emc-users] Do pnp prox switches need a pulldown load R? On Wednesda

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread gene heskett
; To: emc-users@lists.sourceforge.net > > Subject: [Emc-users] Do pnp prox switches need a pulldown load R? > > > > Greetings all; > > > > Peter in particular, > > > > This is my first try at utilizing a prox switch, and while the led on > > it r

Re: [Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread Peter C. Wallace
On Wed, 11 May 2022, gene heskett wrote: Date: Wed, 11 May 2022 16:13:58 -0400 From: gene heskett Reply-To: "Enhanced Machine Controller (EMC)" To: emc-users@lists.sourceforge.net Subject: [Emc-users] Do pnp prox switches need a pulldown load R? Greetings all; Peter in

[Emc-users] Do pnp prox switches need a pulldown load R?

2022-05-11 Thread gene heskett
Greetings all; Peter in particular, This is my first try at utilizing a prox switch, and while the led on it responds just fine on 12 volts, I measure around 6 volts on the blue wire when its off, and only 7.1 volts when its fired. With +12.0 volts on the red wire. These are "PNP" switches.