| ??? 05/25/06 12:47 Read: times |
#117086 - Ground, earth, soil,... Responding to: ???'s previous message |
Rucha said:
But as suggested by kai sir i have connected the rollers ground. It's a bit confusing: "Ground" in my language means "signal ground". In english it means "earth" or "soil". By connecting the rollers to ground I didn't mean to connect them to signal ground but to protection earth. But not in the way, that you connect the green yeelow wire of mains explicitly to it, but that you have every metallic stuff of your trainer connected to each other and somewhere to the protection earth wire. There is no need to additionaly connect the rollers to signal ground, because signal ground is already connected to protection earth at your power supply unit. Also connecting signal ground to the rollers can cause a ground loop and should be avoided. In my last reply I suggested to connect a cap from signal ground of mainboard to chassis (frame) of trainer. This will allow the ESD currents to flow back to the rollers while at the same time preventing the develop of a ground loop for signal ground. Kai |
| Topic | Author | Date |
| ESD problem | 01/01/70 00:00 | |
| try isolating signal gnd from earth | 01/01/70 00:00 | |
| thanks richard | 01/01/70 00:00 | |
| Watchdog not really useful | 01/01/70 00:00 | |
| hi kalpak | 01/01/70 00:00 | |
| re watchdog, never said better | 01/01/70 00:00 | |
| hi steve | 01/01/70 00:00 | |
| that will NOT help | 01/01/70 00:00 | |
| hello erik sir | 01/01/70 00:00 | |
| activating the the watchdog while error | 01/01/70 00:00 | |
| hello erik sir | 01/01/70 00:00 | |
| Pick off brush ? | 01/01/70 00:00 | |
| yes | 01/01/70 00:00 | |
| this may help | 01/01/70 00:00 | |
| So what? | 01/01/70 00:00 | |
| Ouch | 01/01/70 00:00 | |
| protecting the human | 01/01/70 00:00 | |
| But.. | 01/01/70 00:00 | |
| And what if... | 01/01/70 00:00 | |
| ESD¬precautions | 01/01/70 00:00 | |
| static | 01/01/70 00:00 | |
| Not from 10mm away! | 01/01/70 00:00 | |
| Bad ground | 01/01/70 00:00 | |
| Earthing problem! | 01/01/70 00:00 | |
| It was observed... | 01/01/70 00:00 | |
| TAKE CARE! | 01/01/70 00:00 | |
| Is your design based on luck? | 01/01/70 00:00 | |
| how do I | 01/01/70 00:00 | |
| Some instructions and guideline | 01/01/70 00:00 | |
| Thank You steve sir | 01/01/70 00:00 | |
| two reasons not to | 01/01/70 00:00 | |
| Posting Diagrams | 01/01/70 00:00 | |
| It's a pdf-file | 01/01/70 00:00 | |
| Where? | 01/01/70 00:00 | |
| Oh, sorry! | 01/01/70 00:00 | |
| Filename | 01/01/70 00:00 | |
| Name | 01/01/70 00:00 | |
| Post it to me. | 01/01/70 00:00 | |
| Link | 01/01/70 00:00 | |
| Perfectly! | 01/01/70 00:00 | |
| How | 01/01/70 00:00 | |
| Aha... | 01/01/70 00:00 | |
| fix it and repost | 01/01/70 00:00 | |
| Buttons? | 01/01/70 00:00 | |
| No | 01/01/70 00:00 | |
| sorry | 01/01/70 00:00 | |
| Try | 01/01/70 00:00 | |
| the simple way is | 01/01/70 00:00 | |
| Thank you | 01/01/70 00:00 | |
| For those who need a link to the code | 01/01/70 00:00 | |
| after seeing the link | 01/01/70 00:00 | |
| So, now you understand why "all of you o | 01/01/70 00:00 | |
| Can't open cdr-files | 01/01/70 00:00 | |
| Some questions? | 01/01/70 00:00 | |
| Yes you are right | 01/01/70 00:00 | |
| oops | 01/01/70 00:00 | |
| Test | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| stop the frtiggin babble! | 01/01/70 00:00 | |
| I guess | 01/01/70 00:00 | |
| Photographs ? | 01/01/70 00:00 | |
| steve sir | 01/01/70 00:00 | |
| No photographs ? | 01/01/70 00:00 | |
| Sorry | 01/01/70 00:00 | |
| so, it is OUR job | 01/01/70 00:00 | |
| I had | 01/01/70 00:00 | |
| Ground, earth, soil,... | 01/01/70 00:00 | |
| Spark gaps ? | 01/01/70 00:00 | |
| maybe he was, but ... | 01/01/70 00:00 | |
| Good for surges, but for ESD? | 01/01/70 00:00 | |
Thank you | 01/01/70 00:00 | |
| Some more questions | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
| Frame, rollers bearings | 01/01/70 00:00 | |
| Kai, is it time? | 01/01/70 00:00 | |
| Hallelujah! | 01/01/70 00:00 | |
| The mess with... | 01/01/70 00:00 | |
| Semi isolating semi conducting enclosure | 01/01/70 00:00 | |
| I can't see why... | 01/01/70 00:00 | |
| I never understood why either, but ... | 01/01/70 00:00 | |
| Measurement | 01/01/70 00:00 | |
| Forget the watchdog! | 01/01/70 00:00 | |
| kai sir | 01/01/70 00:00 | |
| Hallo? | 01/01/70 00:00 | |
| kai sir | 01/01/70 00:00 | |
| What do you expect from a watchdog? | 01/01/70 00:00 | |
| Unpleasant. | 01/01/70 00:00 | |
| Which is why I doubt it is ESD | 01/01/70 00:00 | |
| Curiouser and curiouser | 01/01/70 00:00 | |
| instruments | 01/01/70 00:00 | |
| you can't | 01/01/70 00:00 | |
| Diagnosis ... | 01/01/70 00:00 | |
| the difference can be 'legal' | 01/01/70 00:00 | |
| expensive is not always expensive | 01/01/70 00:00 | |
| Exactly! | 01/01/70 00:00 | |
| Killing shock ? | 01/01/70 00:00 | |
| Who says that... | 01/01/70 00:00 | |
| Trying to improve the performance... | 01/01/70 00:00 | |
| Thank you kai sir | 01/01/70 00:00 |