I have 2 tanks , one is under another and hopes to pump from under tank to upper one using a 0.5 Hp single phase motor.By connecting float switches for both tank,can I control the motor to turn on when the water level of lower tank is high and switches off when the water level of upper tank is high ( Upper tank has lower capacity than Lower ) and vise versa
\$\begingroup\$
\$\endgroup\$
7
-
\$\begingroup\$ Certainly, yes. \$\endgroup\$– TransistorCommented May 4, 2020 at 22:19
-
\$\begingroup\$ I have question with the circuit, each float switch has 3 wires, what are the wires i need to use \$\endgroup\$– Charit UdyoungerCommented May 4, 2020 at 22:24
-
\$\begingroup\$ You need to edit your question to add links to the datasheet for the switches. We can't guess. \$\endgroup\$– TransistorCommented May 4, 2020 at 22:27
-
\$\begingroup\$ wiltec.de/float-switch-pump-level-controller-cable-5m.html \$\endgroup\$– Charit UdyoungerCommented May 4, 2020 at 22:32
-
2\$\begingroup\$ I suspect that you want to control one motor with two switches, rather than have the motor control the switches, as the title says. \$\endgroup\$– Peter BennettCommented May 4, 2020 at 22:58
|
Show 2 more comments
2 Answers
\$\begingroup\$
\$\endgroup\$
According to the datasheet the sensor and under the assumption that it works like https://www.youtube.com/watch?v=tA76sm_jJTk it can be used directly without the need of any additional circuit:
The parts are taken from the datasheet chart 2 and 5.
answered May 5, 2020 at 9:57
\$\begingroup\$
\$\endgroup\$
Yes, by using a relay, wired up as a latch. You have the high-limit switch as SPDT type which can serve as a cut-off.
Here's how it works:
- The lower tank-high switch energizes the coil.
- Relay self-energizes through one set of contacts, which latches it.
- The upper tank-high switch turns off the relay, latch opens.
The connection looks like this:
simulate this circuit – Schematic created using CircuitLab
answered May 4, 2020 at 22:36