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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by StewartVivonne

  1. S

    Changing a motor's direction each time power is supplied

    the vacuum is a different apparatus entirely, its tube is attached next to the motor i want to reverse. My bad, the vacuum is a red herring
  2. S

    Changing a motor's direction each time power is supplied

    AC Motor 20w 1.8microfarads F/450V 220V 50Hz 1250rpm 60Hz 1550rpm Model YN70-20 http://www.linixmotor.com/1-transmission-gear.html
  3. S

    Changing a motor's direction each time power is supplied

    No definitely not reversing while running. the existing control box already handles the stop start and timing. I just need it to turn a different dirrection each time it is started. so I'm trying to add after the existing control box. I'm thinking of disconnecting the condo at the motor, add a...
  4. S

    Changing a motor's direction each time power is supplied

    i was thinking of an impulse or keep relay followed by a DPDT relay
  5. S

    Changing a motor's direction each time power is supplied

    There is already a control box that handles timings, all I need is at the motor end is to switch polarity
  6. S

    Changing a motor's direction each time power is supplied

    Safety is paramount, this thing sits in a silo full of combustable wood pellets. That said, the manufacturers already have the motor, condo, wiring etc in place. The 220 volts plugs in via a 3 prong kettle cord... and yet it conforms to european standards so a relay and circuit in a box inside...
  7. S

    Changing a motor's direction each time power is supplied

    30watt 220v single phase. I've seen it turn in reverse when I change the wires over
  8. S

    Changing a motor's direction each time power is supplied

    220V AC I've been reading about DPDT relays and the change of direction seems straightforward, my big problem is how to automate the switch. The motor is supplied for 10 secpnds every hour, how does it remember that the last time it turned clockwise and now it has to be anti-clock and the next...
  9. S

    Changing a motor's direction each time power is supplied

    ah you're getting too technical already!! :)
  10. S

    Changing a motor's direction each time power is supplied

    I hope I can get some help here, I'm a heating engineer with not much electronics savvy, and I need to modify the motors on one of our products. It's a motor that turns, controlled by a timer. so it turns for 10 seconds every hour. because it always turns in the same direction it sometimes gets...
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