Re: [Emc-users] OT: Cheap VFD
On 10/04/2011 01:31 PM, gene heskett wrote: FWIW, I woke up this morning and realized that I had now completed 77 trips of this planet around its star. Someone said another year older wiser and I replied that the wiser part was debatable. ;-) Am I still the official oldest fart here?, I've forgotten. That too, goes with the years. :( Cheers, Gene Well, Happy Birthday Gene, and wishing you many more! Mark -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 04.10.11 14:22, Peter Blodow wrote: andy pugh schrieb: http://de.wikipedia.org/wiki/Fehlerstromschutzschalter Thanks, Andy, of course I know these. I have experienced a lot of unnecessary trouble caused by this safety switch during my time as a facility manager as well as at home (freezer connected to the same line as the kitchen appliances, protected by such a goody, us being on holidays, and a lightning striking nearby)... Peter, when specifying house wiring to my electriciain, I ensured that in the kitchen, only the the counter-top outlets were in the ELCB (Earth Leakage Circuit Breaker) circuit. The refrigerator's outlet was explicitly excluded, to avoid the problem that you have experienced. And yes, probably every country can add to the name confusion. Erik -- But, for my own part, it was Greek to me. - William Shakespeare, Julius Caesar -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 5 October 2011 11:47, Erik Christiansen dva...@internode.on.net wrote: Peter, when specifying house wiring to my electriciain, I ensured that in the kitchen, only the the counter-top outlets were in the ELCB No choice in the UK. It used to be that you had to have the sockets on an RCD and the lights not on an RCD (it being assumed that almost nobody is electrocuted by a light fitting, but falling down the stairs in the dark when the washing machine needs new brushes is a problem) Now the regs say that there should be two RCDs with the lights and sockets split between them. This article here has an interesting review of the situation with commercial premises, which I think could reasonably be extended to machine tools which don't play well with earth leakage detection. http://www.electricalreview.co.uk/features/117892/17th_Edition_-_To_RCD_or_not_RCD%3F.html -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Wednesday, October 05, 2011 10:29:11 AM Mark Wendt did opine: On 10/04/2011 01:31 PM, gene heskett wrote: FWIW, I woke up this morning and realized that I had now completed 77 trips of this planet around its star. Someone said another year older wiser and I replied that the wiser part was debatable. ;-) Am I still the official oldest fart here?, I've forgotten. That too, goes with the years. :( Cheers, Gene Well, Happy Birthday Gene, and wishing you many more! Mark Thanks Mark. I hope so too. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) One of the worst of my many faults is that I'm too critical of myself. -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 10/05/2011 07:21 AM, andy pugh wrote: On 5 October 2011 11:47, Erik Christiansendva...@internode.on.net wrote: Peter, when specifying house wiring to my electriciain, I ensured that in the kitchen, only the the counter-top outlets were in the ELCB No choice in the UK. It used to be that you had to have the sockets on an RCD and the lights not on an RCD (it being assumed that almost nobody is electrocuted by a light fitting, but falling down the stairs in the dark when the washing machine needs new brushes is a problem) Now the regs say that there should be two RCDs with the lights and sockets split between them. This article here has an interesting review of the situation with commercial premises, which I think could reasonably be extended to machine tools which don't play well with earth leakage detection. http://www.electricalreview.co.uk/features/117892/17th_Edition_-_To_RCD_or_not_RCD%3F.html I think that this part should solve some problems in an industrial setting: Exceptions are permitted where: the use of socket outlets is under the supervision of someone skilled or instructed or if they are specifically labelled or identified for a particular item of equipment. In my little shop here at home, I have a 200 amp 40 breaker panel, and I feed each piece of equipment with it's own dedicated circuit. I have this nice little label maker that prints out little white labels, and I stick them on each outlet, identifying what breaker controls it. Writing a tag, specifying how the outlet is connected, shouldn't be any different. And, having everyone in your shop sign a piece of paper that is INSTRUCTING them that the outlet shouldn't be used for anything other than it's intended purpose, should suffice. Here in the US, each city has it's own little quirks, and it's own Modifications to the NEC (National Electrical Code). In a house, in many jurisdictions, high current items like a refrigerator, or a washing machine are supposed to be on a dedicated circuit. For a washing machine, a ground fault plug is installed at that location, which keeps it separate from everything else. A refrigerator, generally doesn't get a GFCI, it supposed to get a single socket (round) outlet, to keep it from being used for anything else. It's far more hazardous to move a refrigerator out of it's hole (tipping hazard), to reset a GFCI, than the protection the GFCI is affording. I know that most houses, that weren't built in the last decade, are not wired up like this. I'm referring to what current codes require. I live out in the country, and in the state I live in, there are no specific codes that I have to follow. I'm not a licensed electrician, but I've been working with electricity for most of my life. I follow the NEC, and I have everything in my shop run in conduit. I use twist-lock plugs on all my machines, to keep anybody coming into my shop, from unplugging something (say, my air compressor which is 220v 15A) and plugging in a extension cord. My insurance company was quite impressed with my wiring, My agent said that he saw professionally installed wiring that wasn't anywhere near as good, and wished that all of his clients shops were wired like mine. PS. is is supposed to be spelled labelled in the UK? -- -Mark Ne M'oubliez ---Family Motto Hope for the best, plan for the worst ---Personal Motto -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 10/5/2011 11:14 AM, Mark Cason wrote: I live out in the country, and in the state I live in, there are no specific codes that I have to follow. I'm not a licensed electrician, but I've been working with electricity for most of my life. I follow the NEC, and I have everything in my shop run in conduit. I live out in the country also - Midwest USA - and there are basically no enforced electrical codes here if you do it yourself. Contractors are suppose to get permits which can trigger inspections, but oftentimes they do work without permits. I have seen some really bad wiring jobs. It is surprising that more buildings do not burn down from poor wiring around here. The guy that formerly owned my house was supposedly an electrician. I did some remodeling in the bathroom and ended up ripping out all of the walls since they were poorly constructed and I found two electrical junction boxes behind the walls that were covered over! It took only a few hours of rewiring to eliminate the boxes. The previous owner was simply lazy and sloppy. Dave -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Wednesday, October 05, 2011 03:10:00 PM Dave did opine: On 10/5/2011 11:14 AM, Mark Cason wrote: I live out in the country, and in the state I live in, there are no specific codes that I have to follow. I'm not a licensed electrician, but I've been working with electricity for most of my life. I follow the NEC, and I have everything in my shop run in conduit. I live out in the country also - Midwest USA - and there are basically no enforced electrical codes here if you do it yourself. Contractors are suppose to get permits which can trigger inspections, but oftentimes they do work without permits. I have seen some really bad wiring jobs. It is surprising that more buildings do not burn down from poor wiring around here. The guy that formerly owned my house was supposedly an electrician. I did some remodeling in the bathroom and ended up ripping out all of the walls since they were poorly constructed and I found two electrical junction boxes behind the walls that were covered over! It took only a few hours of rewiring to eliminate the boxes. The previous owner was simply lazy and sloppy. Dave Been there, done that Dave, this house is a National Homes package. Very little that I have opened up that I didn't wind up ripping out that whole wall starting all over again. One of the things I found when I was remodeling the 'music room' which was in fact the original garage space, converted at build time on site to living space, was a copper waterline, capped off buried in the wall, where I assume the original plan had a cold water only utility sink, or more likely just a wall faucet, installed in the garage. A trip to town for a frost-free, some more copper and a few sweat fittings and I now have a faucet on the front of the house, to hook up whatever to. Why it wasn't done in the first place is beyond me because its 20x handier than the one on the back of the house that I had to move about 20 feet when we put a _cheaply built_ deck on the back of the house 20 years ago. Some folks would cut their nose off for a mosquito bites worth of money. Boggles my mind. Some of the things I've said about the guy that built this neighborhood should have him doing about 19,000 rpm in his grave. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) No problem is so formidable that you can't walk away from it. -- C. Schulz -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Is there an abbreviation of Aggressive Acronyme Addiction, maybe AAA? Peter andy pugh schrieb: On 3 October 2011 22:35, Jim Coleman drunkenwhip...@gmail.com wrote: At the risk of sounding like an idiot... what's an RCD? I'm guessing it's along the liens of GFCI, but don't recall ever seeing the term. The same thing, I think. http://en.wikipedia.org/wiki/Residual-current_device -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 4 October 2011 07:31, Peter Blodow p.blo...@dreki.de wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Does Fehlerstromschutzschalter make any more sense? http://de.wikipedia.org/wiki/Fehlerstromschutzschalter -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Tuesday, October 04, 2011 04:15:19 AM Peter Blodow did opine: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Is there an abbreviation of Aggressive Acronyme Addiction, maybe AAA? Peter I am not familiar with RCD (I live on the American side of the pond), but a GFCI is a Ground Fault Circuit Interrupter, a device that compares the current in one wire to the current in the return wire, and will typically trip, interrupting power to the protected load if the difference exceeds 5 to 20 microamps, indicating that a circuit path to ground exists, which could be a human body. 20 microamps you generally cannot feel, but that is the lower bound of the range that, in passing through the heart, can be lethal by causing loss of beat timing. It may go into fibrillation where the beats are very rapid and move very little blood, and generally requires a 200+ watt second bang from a defibrilator's paddles applied across the upper chest to get it out of this condition. The upper bound of this lethal region is generally considered to be about 20 milliamps because at 20 milliamps and above, the heart is frozen, and if the current is removed within 1 or 2 minutes, the heart will usually just start back up in a normal beat pattern. Normally these devices need the static ground, but I just recently purchased a 1500 psi electric pressure washer whose GFCI circuit on the end of its rather long power cord does not have this 3rd, round pin, relying on the wide blade being the neutral for our unbalanced 127 volts to neutral power that we get from a wall socket here in the states. Obviously this one has warnings about using it on a drop cord that may be miss-wired. But I verify mine before I put them into service. And it did trip once, got left out in the rain. :( andy pugh schrieb: On 3 October 2011 22:35, Jim Coleman drunkenwhip...@gmail.com wrote: At the risk of sounding like an idiot... what's an RCD? I'm guessing it's along the liens of GFCI, but don't recall ever seeing the term. The same thing, I think. http://en.wikipedia.org/wiki/Residual-current_device -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Plastic... Aluminum... These are the inheritors of the Universe! Flesh and Blood have had their day... and that day is past! -- Green Lantern Comics -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
andy pugh schrieb: On 4 October 2011 07:31, Peter Blodow p.blo...@dreki.de wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Does Fehlerstromschutzschalter make any more sense? http://de.wikipedia.org/wiki/Fehlerstromschutzschalter Thanks, Andy, of course I know these. I have experienced a lot of unnecessary trouble caused by this safety switch during my time as a facility manager as well as at home (freezer connected to the same line as the kitchen appliances, protected by such a goody, us being on holidays, and a lightning striking nearby)... By the way: we usualy abbreviate it as FI-Schalter ;-) Peter -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 10/04/2011 08:22 AM, Peter Blodow wrote: andy pugh schrieb: On 4 October 2011 07:31, Peter Blodowp.blo...@dreki.de wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Does Fehlerstromschutzschalter make any more sense? http://de.wikipedia.org/wiki/Fehlerstromschutzschalter Thanks, Andy, of course I know these. I have experienced a lot of unnecessary trouble caused by this safety switch during my time as a facility manager as well as at home (freezer connected to the same line as the kitchen appliances, protected by such a goody, us being on holidays, and a lightning striking nearby)... By the way: we usualy abbreviate it as FI-Schalter ;-) Peter Peter, Perhaps it should be re-named Ach scheisster? ;-) Mark -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Tuesday, October 04, 2011 10:55:18 AM Peter Blodow did opine: andy pugh schrieb: On 4 October 2011 07:31, Peter Blodow p.blo...@dreki.de wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Does Fehlerstromschutzschalter make any more sense? http://de.wikipedia.org/wiki/Fehlerstromschutzschalter Thanks, Andy, of course I know these. I have experienced a lot of unnecessary trouble caused by this safety switch during my time as a facility manager as well as at home (freezer connected to the same line as the kitchen appliances, protected by such a goody, us being on holidays, and a lightning striking nearby)... A Hint Peter. I have, scattered about my premises, a dozen or more of those 3 foot long plugin extension strips with 6 to 8 sockets, a cheap circuit breaker and surge absorbtion (65+ Joules) built in. 20 years ago I used to lose a modem every time mother nature put on a show. So I first went through this room and made sure all the wiring was tight, and properly phased. Then I bought one super deluxe version of this gizmo, plugged it into the duplex behind this desk and hung it on the wall about 4 feet from me. It has connections for cable tv and telephone too, so all circuits are protected by the devices 5500 Joule surge absorber. Except for the X10 stuff and the overhead lights, everything else in this room is plugged into this as a central, common point. If lightning does strike, then the whole rooms electrical stuff bounces in unison. Now I do not have cable anymore, so I have only the 8 or 9 channels I can get from a roof mounted, rotating antenna, which is itself grounded from its base and all 4 guy wires. There is a telco type lightning arrestor connected by 2 feet of 8 gage to a ground rod, as is the coax from the antenna. With lightning arresters on the rotor cable as well as the coax, I saw evidence of a strike on the antenna the wind took down last June 24th, but it didn't get past the grounding and the arrestors. But its been 15 years since I've had any lightning damages, including seeing the pole with my transformer on it take a good hit at least once. The rest of the house is similarly equipt with these surge arresting circuit expansion strips too as I've made sure any wiring expansions or such that I have done are so equipt. I sleep better when the weather gets ugly. I seem to have the damages under control. Extra expense over about 20 years might be $150. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Steal my cash, car and TV - but leave the computer! -- Soenke Lange soe...@escher.north.de -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 10/4/2011 11:23 AM, gene heskett wrote: On Tuesday, October 04, 2011 10:55:18 AM Peter Blodow did opine: andy pugh schrieb: On 4 October 2011 07:31, Peter Blodowp.blo...@dreki.de wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Does Fehlerstromschutzschalter make any more sense? http://de.wikipedia.org/wiki/Fehlerstromschutzschalter Thanks, Andy, of course I know these. I have experienced a lot of unnecessary trouble caused by this safety switch during my time as a facility manager as well as at home (freezer connected to the same line as the kitchen appliances, protected by such a goody, us being on holidays, and a lightning striking nearby)... A Hint Peter. I have, scattered about my premises, a dozen or more of those 3 foot long plugin extension strips with 6 to 8 sockets, a cheap circuit breaker and surge absorbtion (65+ Joules) built in. 20 years ago I used to lose a modem every time mother nature put on a show. So I first went through this room and made sure all the wiring was tight, and properly phased. Then I bought one super deluxe version of this gizmo, plugged it into the duplex behind this desk and hung it on the wall about 4 feet from me. It has connections for cable tv and telephone too, so all circuits are protected by the devices 5500 Joule surge absorber. Except for the X10 stuff and the overhead lights, everything else in this room is plugged into this as a central, common point. If lightning does strike, then the whole rooms electrical stuff bounces in unison. Now I do not have cable anymore, so I have only the 8 or 9 channels I can get from a roof mounted, rotating antenna, which is itself grounded from its base and all 4 guy wires. There is a telco type lightning arrestor connected by 2 feet of 8 gage to a ground rod, as is the coax from the antenna. With lightning arresters on the rotor cable as well as the coax, I saw evidence of a strike on the antenna the wind took down last June 24th, but it didn't get past the grounding and the arrestors. But its been 15 years since I've had any lightning damages, including seeing the pole with my transformer on it take a good hit at least once. The rest of the house is similarly equipt with these surge arresting circuit expansion strips too as I've made sure any wiring expansions or such that I have done are so equipt. I sleep better when the weather gets ugly. I seem to have the damages under control. Extra expense over about 20 years might be $150. Cheers, Gene I was having the same problem years ago - lightning strikes on the power lines taking out equipment. I found a Square D surge suppressor that mounts directly in the power subpanel that powers my computers. It installs just like a circuit breaker. Ever since I did that installation I have had zero failures due to lightning storms.Before the surge suppressor I was losing computers and electronic equipment on a regular basis during lightning storms. I think the suppressor was about $75 on sale. Dave -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
Peter Blodow wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Is there an abbreviation of Aggressive Acronyme Addiction, maybe AAA? In the US, we have GFI (ground Fault Interrupter) and GFCI (Ground Fault Circuit Interrupter) the same thing, compares current on line and neutral, and if they differ by more than a small amount, cuts off power very quickly. The British have apparently had several names for them over the years, the current one seems to be RCD (Residual Current Disconnect), as far as I know they work identically to the US version. I'm sure other countries have their own acronyms for the same type of device. There are also similar units used all the way up to high tension transmission feeders, and they still work pretty much the same way. They have a balance transformer at each end, with three coils, so the three delta mains are equally centered to ground. If a tree branch touches one wire, it unbalances the main, and current flows in the balance transformer, tripping the GFI. Jon -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Tuesday, October 04, 2011 01:04:56 PM Dave did opine: On 10/4/2011 11:23 AM, gene heskett wrote: On Tuesday, October 04, 2011 10:55:18 AM Peter Blodow did opine: andy pugh schrieb: On 4 October 2011 07:31, Peter Blodowp.blo...@dreki.de wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Does Fehlerstromschutzschalter make any more sense? http://de.wikipedia.org/wiki/Fehlerstromschutzschalter Thanks, Andy, of course I know these. I have experienced a lot of unnecessary trouble caused by this safety switch during my time as a facility manager as well as at home (freezer connected to the same line as the kitchen appliances, protected by such a goody, us being on holidays, and a lightning striking nearby)... A Hint Peter. I have, scattered about my premises, a dozen or more of those 3 foot long plugin extension strips with 6 to 8 sockets, a cheap circuit breaker and surge absorbtion (65+ Joules) built in. 20 years ago I used to lose a modem every time mother nature put on a show. So I first went through this room and made sure all the wiring was tight, and properly phased. Then I bought one super deluxe version of this gizmo, plugged it into the duplex behind this desk and hung it on the wall about 4 feet from me. It has connections for cable tv and telephone too, so all circuits are protected by the devices 5500 Joule surge absorber. Except for the X10 stuff and the overhead lights, everything else in this room is plugged into this as a central, common point. If lightning does strike, then the whole rooms electrical stuff bounces in unison. Now I do not have cable anymore, so I have only the 8 or 9 channels I can get from a roof mounted, rotating antenna, which is itself grounded from its base and all 4 guy wires. There is a telco type lightning arrestor connected by 2 feet of 8 gage to a ground rod, as is the coax from the antenna. With lightning arresters on the rotor cable as well as the coax, I saw evidence of a strike on the antenna the wind took down last June 24th, but it didn't get past the grounding and the arrestors. But its been 15 years since I've had any lightning damages, including seeing the pole with my transformer on it take a good hit at least once. The rest of the house is similarly equipt with these surge arresting circuit expansion strips too as I've made sure any wiring expansions or such that I have done are so equipt. I sleep better when the weather gets ugly. I seem to have the damages under control. Extra expense over about 20 years might be $150. Cheers, Gene I was having the same problem years ago - lightning strikes on the power lines taking out equipment. I found a Square D surge suppressor that mounts directly in the power subpanel that powers my computers. It installs just like a circuit breaker. Ever since I did that installation I have had zero failures due to lightning storms.Before the surge suppressor I was losing computers and electronic equipment on a regular basis during lightning storms. I think the suppressor was about $75 on sale. Dave I also thought along those lines Dave, but then I reconsidered because of the impedance that the long runs from the electrical service also represent a rather effective antenna for the EMP the lightning strike introduces to the system, and based on that, elected to let each individual tree of the distribution be its own 'common point'. So there is one tree here in the coyote's den, another pair on the kitchen counters, and one behind the entertainment center, so no one individual device is more than the length of its power cord from the common, can't go above about 165 volts peak away from its neighbors that it may have an audio or video cable connected to as long as the varistor devices themselves survive. When one has spent most of his working life in broadcast, the RF end of it, and its dependence on the length of the wire involved tends to effect ones thinking. That 6 to 8 foot run from the electrical entrance service box to the ground rods that are supposed to be connected there, can in fact be a several thousand ohm resistance, at the rise and fall times of a lightning strike which is normally said to be in the nanosecond range when the strike is close. In my mind it made more sense that everything interconnected in a given room should bounce in unison, tied together by the conduction of the varistor in that rooms surge absorber, so that while the whole room might bounce 100 kilovolts from ground, it is all in unison with no interdevice surge exceeding maybe 200 volts. It is the interdevice voltages that blows stuff, but as long as there is air enough to prevent a direct jump to ground or whatever is handy, and I have a basement under me so a
Re: [Emc-users] OT: Cheap VFD
On 10/4/2011 1:31 PM, gene heskett wrote: On Tuesday, October 04, 2011 01:04:56 PM Dave did opine: On 10/4/2011 11:23 AM, gene heskett wrote: On Tuesday, October 04, 2011 10:55:18 AM Peter Blodow did opine: andy pugh schrieb: On 4 October 2011 07:31, Peter Blodowp.blo...@dreki.de wrote: I hoped Jim Coleman would be the one looking like an idiot but couldn't someone explain to a poor non-US citizen what kind of animals RCD and GFCI are? Does Fehlerstromschutzschalter make any more sense? http://de.wikipedia.org/wiki/Fehlerstromschutzschalter Thanks, Andy, of course I know these. I have experienced a lot of unnecessary trouble caused by this safety switch during my time as a facility manager as well as at home (freezer connected to the same line as the kitchen appliances, protected by such a goody, us being on holidays, and a lightning striking nearby)... A Hint Peter. I have, scattered about my premises, a dozen or more of those 3 foot long plugin extension strips with 6 to 8 sockets, a cheap circuit breaker and surge absorbtion (65+ Joules) built in. 20 years ago I used to lose a modem every time mother nature put on a show. So I first went through this room and made sure all the wiring was tight, and properly phased. Then I bought one super deluxe version of this gizmo, plugged it into the duplex behind this desk and hung it on the wall about 4 feet from me. It has connections for cable tv and telephone too, so all circuits are protected by the devices 5500 Joule surge absorber. Except for the X10 stuff and the overhead lights, everything else in this room is plugged into this as a central, common point. If lightning does strike, then the whole rooms electrical stuff bounces in unison. Now I do not have cable anymore, so I have only the 8 or 9 channels I can get from a roof mounted, rotating antenna, which is itself grounded from its base and all 4 guy wires. There is a telco type lightning arrestor connected by 2 feet of 8 gage to a ground rod, as is the coax from the antenna. With lightning arresters on the rotor cable as well as the coax, I saw evidence of a strike on the antenna the wind took down last June 24th, but it didn't get past the grounding and the arrestors. But its been 15 years since I've had any lightning damages, including seeing the pole with my transformer on it take a good hit at least once. The rest of the house is similarly equipt with these surge arresting circuit expansion strips too as I've made sure any wiring expansions or such that I have done are so equipt. I sleep better when the weather gets ugly. I seem to have the damages under control. Extra expense over about 20 years might be $150. Cheers, Gene I was having the same problem years ago - lightning strikes on the power lines taking out equipment. I found a Square D surge suppressor that mounts directly in the power subpanel that powers my computers. It installs just like a circuit breaker. Ever since I did that installation I have had zero failures due to lightning storms.Before the surge suppressor I was losing computers and electronic equipment on a regular basis during lightning storms. I think the suppressor was about $75 on sale. Dave I also thought along those lines Dave, but then I reconsidered because of the impedance that the long runs from the electrical service also represent a rather effective antenna for the EMP the lightning strike introduces to the system, and based on that, elected to let each individual tree of the distribution be its own 'common point'. So there is one tree here in the coyote's den, another pair on the kitchen counters, and one behind the entertainment center, so no one individual device is more than the length of its power cord from the common, can't go above about 165 volts peak away from its neighbors that it may have an audio or video cable connected to as long as the varistor devices themselves survive. When one has spent most of his working life in broadcast, the RF end of it, and its dependence on the length of the wire involved tends to effect ones thinking. That 6 to 8 foot run from the electrical entrance service box to the ground rods that are supposed to be connected there, can in fact be a several thousand ohm resistance, at the rise and fall times of a lightning strike which is normally said to be in the nanosecond range when the strike is close. In my mind it made more sense that everything interconnected in a given room should bounce in unison, tied together by the conduction of the varistor in that rooms surge absorber, so that while the whole room might bounce 100 kilovolts from ground, it is all in unison with no interdevice surge exceeding maybe 200 volts. It is the interdevice voltages that blows stuff, but as long as there is air enough to prevent a direct
Re: [Emc-users] OT: Cheap VFD
On Tuesday, October 04, 2011 02:35:15 PM Dave did opine: [...] FWIW, I woke up this morning and realized that I had now completed 77 trips of this planet around its star. Someone said another year older wiser and I replied that the wiser part was debatable. ;-) Am I still the official oldest fart here?, I've forgotten. That too, goes with the years. :( Cheers, Gene Happy Birthday Gene! Dave Thank you Dave. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) _Anarchy_ Argh.. who's handing out the paper bags 8) -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
As I missed it the first time around, Happy Birthday Gene! On Tue, Oct 4, 2011 at 2:36 PM, gene heskett ghesk...@wdtv.com wrote: On Tuesday, October 04, 2011 02:35:15 PM Dave did opine: [...] FWIW, I woke up this morning and realized that I had now completed 77 trips of this planet around its star. Someone said another year older wiser and I replied that the wiser part was debatable. ;-) Am I still the official oldest fart here?, I've forgotten. That too, goes with the years. :( Cheers, Gene Happy Birthday Gene! Dave Thank you Dave. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) _Anarchy_ Argh.. who's handing out the paper bags 8) -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Tuesday, October 04, 2011 09:25:38 PM Kyle Kerr did opine: As I missed it the first time around, Happy Birthday Gene! Chuckle, that is what I get for being too verbose I guess. ;) Thank you, Kyle. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Stay away from flying saucers today. -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
A very Happy Birthday, Gene, if I'm not too late! Here's to many more happy years too. Best wishes, Martin On Tuesday, October 04, 2011 09:25:38 PM Kyle Kerr did opine: As I missed it the first time around, Happy Birthday Gene! Chuckle, that is what I get for being too verbose I guess. ;) Thank you, Kyle. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) Stay away from flying saucers today. -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Tuesday, October 04, 2011 11:02:59 PM Martin Dobbins did opine: A very Happy Birthday, Gene, if I'm not too late! Here's to many more happy years too. You got here with an hour to spare. ;) Thanks Martin. Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) The longest part of the journey is said to be the passing of the gate. -- Marcus Terentius Varro -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
I have one of these in production. It works well and I can't complain about anything, it actually is very sturdy and accelerates/deccelerates smoothly. I haven't set it up with a modbus, I run it at full speed as default and then I adjust the RPM with a potentiometer at runtime. At the same time, An extremely expensive Siemens VFD fired off the RCD... Regards, Sven 2011/9/24 Kirk Wallace kwall...@wallacecompany.com Has anyone used one of these? http://www.ebay.com/itm/220772028703#ht_13349wt_1189 It seems to have what I need, and is cheaper than a beat to heck used VFD. Am I missing something? -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 3 October 2011 08:29, Sven Wesley svenne.d...@gmail.com wrote: At the same time, An extremely expensive Siemens VFD fired off the RCD... That is probably because the Siemens VFD includes an input-side filter. Unfortunately filters provide a path to earth, and RCDs are designed to detect that. -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 10/3/2011 3:43 AM, andy pugh wrote: On 3 October 2011 08:29, Sven Wesleysvenne.d...@gmail.com wrote: At the same time, An extremely expensive Siemens VFD fired off the RCD... That is probably because the Siemens VFD includes an input-side filter. Unfortunately filters provide a path to earth, and RCDs are designed to detect that. I thought that EU standards dictated the use of input side filters.. yet they trip your RCDs.. so how does that work in real life? Are RCDs not required in factories? Dave -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 3 October 2011 17:53, Dave e...@dc9.tzo.com wrote: I thought that EU standards dictated the use of input side filters.. yet they trip your RCDs.. so how does that work in real life? Are RCDs not required in factories? RCDs are not required on outlets 20A rated, or those to be used by trained operators. (According to a cursory read of a poster in TLC) -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 10/3/2011 1:03 PM, andy pugh wrote: On 3 October 2011 17:53, Davee...@dc9.tzo.com wrote: I thought that EU standards dictated the use of input side filters.. yet they trip your RCDs.. so how does that work in real life? Are RCDs not required in factories? RCDs are not required on outlets20A rated, or those to be used by trained operators. (According to a cursory read of a poster in TLC) or those to be used by trained operators. That is interesting. I don't think that we have any rules based on the skill of the person using the outlet. I think they tend to assume that everyone is of the same mental means in the US, one notch above an idiot. ;-) Dave -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
At the risk of sounding like an idiot... what's an RCD? I'm guessing it's along the liens of GFCI, but don't recall ever seeing the term. Thanks, Jim On Mon, Oct 3, 2011 at 2:25 PM, Dave e...@dc9.tzo.com wrote: On 10/3/2011 1:03 PM, andy pugh wrote: On 3 October 2011 17:53, Davee...@dc9.tzo.com wrote: I thought that EU standards dictated the use of input side filters.. yet they trip your RCDs.. so how does that work in real life? Are RCDs not required in factories? RCDs are not required on outlets20A rated, or those to be used by trained operators. (According to a cursory read of a poster in TLC) or those to be used by trained operators. That is interesting. I don't think that we have any rules based on the skill of the person using the outlet. I think they tend to assume that everyone is of the same mental means in the US, one notch above an idiot. ;-) Dave -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On 3 October 2011 22:35, Jim Coleman drunkenwhip...@gmail.com wrote: At the risk of sounding like an idiot... what's an RCD? I'm guessing it's along the liens of GFCI, but don't recall ever seeing the term. The same thing, I think. http://en.wikipedia.org/wiki/Residual-current_device -- atp Torque wrenches are for the obedience of fools and the guidance of wise men -- All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
Hi Kirk, These VFDs have a few issues. A Few people get them and they don't work at all. Some have had components floating around. That said a lot, and I mean a lot of people buy these along with the chinese high speed spindles. Also their modbus interface is broken. They missinterpreted the spec and so it doesn't work. Must have been an issue with their Jinglish. :) I have one, used it once or twice then bought a Hitachi X200, which has a Modbus interface that works. http://www.driveswarehouse.com/Drives/AC+Drives/Variable+Torque+VFD/X200-037LFU.html Cheers, Peter. On 24/09/2011 10:45 AM, Kirk Wallace wrote: Has anyone used one of these? http://www.ebay.com/itm/220772028703#ht_13349wt_1189 It seems to have what I need, and is cheaper than a beat to heck used VFD. Am I missing something? -- - eStore: http://www.homanndesigns.com/store Web : http://www.homanndesigns.com ModIO - Modbus Interface Unit email : pe...@homanndesigns.com DigiSpeed - Isolated 10Vdc I/F Phone : +61 421 601 665 TurboTaig - Taig Mill Upgrade board -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
On Sat, 2011-09-24 at 11:03 -0400, Dave wrote: On 9/24/2011 7:38 AM, Peter Homann wrote: Hi Kirk, These VFDs have a few issues. A Few people get them and they don't work at all. Some have had components floating around. That said a lot, and I mean a lot of people buy these along with the chinese high speed spindles. Also their modbus interface is broken. They missinterpreted the spec and so it doesn't work. Must have been an issue with their Jinglish. :) I have one, used it once or twice then bought a Hitachi X200, which has a Modbus interface that works. http://www.driveswarehouse.com/Drives/AC+Drives/Variable+Torque+VFD/X200-037LFU.html Cheers, Peter. Thanks Andrew, Peter and Dave. I suspected there might be issues with these cheap drives. I suppose it would be wise to consider these units to not have a Modbus feature, then decide from there. The loose parts reminds me of stories about Listeroids, where it seems common practice to completely disassemble the engine before turning it over, to get all of the sand out of it and to check and refit parts that don't match. http://www.utterpower.com/listeroi.htm -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
I'm using a VFD from Automation Direct and it's working great with the gs2_vfd module. My model # is GS2-23P0, but i expect all the GS2 models share interface firmware work equally well. - Reply message - From: Dave e...@dc9.tzo.com Date: Sat, Sep 24, 2011 09:03 Subject: [Emc-users] OT: Cheap VFD To: gro...@homanndesigns.com, Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net On 9/24/2011 7:38 AM, Peter Homann wrote: Hi Kirk, These VFDs have a few issues. A Few people get them and they don't work at all. Some have had components floating around. That said a lot, and I mean a lot of people buy these along with the chinese high speed spindles. Also their modbus interface is broken. They missinterpreted the spec and so it doesn't work. Must have been an issue with their Jinglish. :) I have one, used it once or twice then bought a Hitachi X200, which has a Modbus interface that works. http://www.driveswarehouse.com/Drives/AC+Drives/Variable+Torque+VFD/X200-037LFU.html Cheers, Peter. On 24/09/2011 10:45 AM, Kirk Wallace wrote: Has anyone used one of these? http://www.ebay.com/itm/220772028703#ht_13349wt_1189 It seems to have what I need, and is cheaper than a beat to heck used VFD. Am I missing something? I have not heard of any Modbus problems with the VFDs sold by Automation Direct either and they are pretty cheap and they work well. Dave -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] OT: Cheap VFD
Has anyone used one of these? http://www.ebay.com/itm/220772028703#ht_13349wt_1189 It seems to have what I need, and is cheaper than a beat to heck used VFD. Am I missing something? -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] OT: Cheap VFD
2011/9/24 Kirk Wallace kwall...@wallacecompany.com Has anyone used one of these? http://www.ebay.com/itm/220772028703#ht_13349wt_1189 It seems to have what I need, and is cheaper than a beat to heck used VFD. Am I missing something? I have similar 2.2KW VFD. It works yet, what else can I say. Not all perfect, but cheap. There's a modbus control option, but it has its own specific Modbus =) There's a component to control it http://www.cnczone.com/forums/diy-cnc_router_table_machines/91847-huanyang_vfd_rs485_modbus.html. I could not make it work with Modbus (though, I have not tried much). Andrew -- All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2dcopy2 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
