bigegg
Scream Not Working Because Space Make Deaf
- Messages
- 9,471
- Location
- Leeds, West Yorkshire
i want to wire up my RAS , router table, and Table saw to an extractor unit.
it's easy enough to use contactors/SSRs etc to make the fan come on when I turn on any of the machines.
but...
How do i delay the "on" and "off" of the fan?
the "on" for a second or so to avoid blowing fuses, and the off by about a minute to clear dust whilst the machine is spinning down.
ideally din rail mounted.
the only "delay" modules i can find are about 30 quid each and are programmable for seconds to weeks.
for that price, i could buy an arduino, a shield, and half a dozen 25A ssrs!
it's easy enough to use contactors/SSRs etc to make the fan come on when I turn on any of the machines.
but...
How do i delay the "on" and "off" of the fan?
the "on" for a second or so to avoid blowing fuses, and the off by about a minute to clear dust whilst the machine is spinning down.
ideally din rail mounted.
the only "delay" modules i can find are about 30 quid each and are programmable for seconds to weeks.
for that price, i could buy an arduino, a shield, and half a dozen 25A ssrs!