j1mmyZ said:
I don't have to stop it in the middle and so my basic dpdt relay would
work. I've never tried this sort of application and am very much self
taught. I did manage to create a PWM to use as a thermostat which I
connected to a couple of TEC's but I'm not so familiar with using
relays. On another thought, would an h-bridge allow me to stop in the
middle if I wanted? I don't have to use an x-10 module (I have some
lying around) I just wanted something simple that would allow remote/
wireless control of the circuit.
thanks again,
james
Here's how mine is wired:
AC ----+-------------------------+------+
| | |
[RY1] [RY2] |
| | |
o | |
/ Run Sw | [Motor]
Up o o Down | |
| | |
| | o
o---+ Up Limit Sw | | <| Ry2-1
/ | / | |
AC --o o---+---o o-------+ | o
U D | | | |
Run | v | |
Sw | ---o---+ |
| |
+---o->o---o---^ Ry1-1 |
| Lo Limit Sw |
| |
+----o o----+
|Ry1-2 Ry1-3 |
|> |<------+----------|> |<---+
| | |
| | |
| | |
| [Reverse coil] |
| | |
+----------+------------------+
My motor has 2 coils. By changing the polarity of one coil with
respect to the other, the motor reverses. That function -
changing the polarity - is done by Ry1-2 and Ry1-3.
The DPDT center off run switch determines whether RY1 will be
energized or deenergized.
The limit switches control RY2. When at the lower limit, the lo
limit switch is open; when at the upper limit, the up limit
switch is open. Anwhere in between, and both limit switches
are closed. The RY1-1 point determines which limit switch
is in series with the RY2 coil. Thus, when the mechanism is
travelling up, the upper limit switch is selected; when it
is travelling down, the lower limit switch is selected.
Ry2-1 controls whether the motor runs or not.
As shown in the diagram, the motor has reached the upper limit,
opening the Up switch and de-energizing RY2. Ry1 is not energized,
because the run switch is in the up position. If you move the
run switch to the down position, RY1 will energize, which in turn
will energize RY2 through the lower limit switch and the RY1-1
contact.
You could use your X-10 system to control a SPDT relay, and use
the relay contacts in place of the upper portion of the run switch
in the above diagram. Assuming your motor works the same as mine,
and that you can get to the limit switches to wire them
up per the above, you can use the circuit.
Ed