A customer brought me his 3W1 and selection receiver stating that making selections via the wallbox were intermittent at best. On the receiver the original cap had been removed from circuit and replaced with two 10uf 450vdc lytic caps wired in parallel. I have not had a lot of interaction with wallbox installation but my question is regarding the replacement cap(s) Shouldn’t that be a 5.0 uf 370vac type? Thanks Rick
If you are talking about the 5 MFD in the 2050 plate ckt; yes. That value is fairly critical. I use five 1mfd mylar caps on a terminal strip for my location machines. There is more to getting accurate stepper operation, but that cap is critical. RobNYC On Thursday, April 20, 2023, 08:34:27 AM GMT-5, Jukebox Repairman via Jukebox-list <jukebox-list@lists.netlojix.com> wrote: A customer brought me his 3W1 and selection receiver stating that making selections via the wallbox were intermittent at best. On the receiver the original cap had been removed from circuit and replaced with two 10uf 450vdc lytic caps wired in parallel. I have not had a lot of interaction with wallbox installation but my question is regarding the replacement cap(s) Shouldn’t that be a 5.0 uf 370vac type? Thanks Rick _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
On 4/19/23 16:25, Jukebox Repairman via Jukebox-list wrote:
A customer brought me his 3W1 and selection receiver stating that making selections via the wallbox were intermittent at best.
On the receiver the original cap had been removed from circuit and replaced with two 10uf 450vdc lytic caps wired in parallel.
Kind of the right idea but wrong implementation. Two of them in series back-to-back polarity would have been a better idea, but electrolytics really aren't suitable here. I replace them with film caps rated at 630 volts, specifically this: https://www.mouser.com/ProductDetail/Panasonic/ECW-FD2J475JB?qs=7EBvPakHacWV...
I have not had a lot of interaction with wallbox installation but my question is regarding the replacement cap(s) Shouldn’t that be a 5.0 uf 370vac type?
Yes. -- Jay Hennigan - jay@west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV
I use exactly the same as RobNY. It’s always worked perfectly. I don’t like electrolytics in that circuit, just personal preference. Sent from my iPhone
On Apr 20, 2023, at 11:08 PM, Jay Hennigan via Jukebox-list <jukebox-list@lists.netlojix.com> wrote:
On 4/19/23 16:25, Jukebox Repairman via Jukebox-list wrote:
A customer brought me his 3W1 and selection receiver stating that making selections via the wallbox were intermittent at best. On the receiver the original cap had been removed from circuit and replaced with two 10uf 450vdc lytic caps wired in parallel.
Kind of the right idea but wrong implementation. Two of them in series back-to-back polarity would have been a better idea, but electrolytics really aren't suitable here.
I replace them with film caps rated at 630 volts, specifically this:
https://www.mouser.com/ProductDetail/Panasonic/ECW-FD2J475JB?qs=7EBvPakHacWV...
I have not had a lot of interaction with wallbox installation but my question is regarding the replacement cap(s) Shouldn’t that be a 5.0 uf 370vac type?
Yes.
-- Jay Hennigan - jay@west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/
participants (4)
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Chan Gade -
Jay Hennigan -
Jukebox Repairman -
M De Simone