Jump to content

Building control for sump pump motor


Guest mgendron

Recommended Posts

One thing to consider, if you are using low voltage DC for inputs from float switches etc, make sure that you have sufficient current flowing to over come the wetting contacts of the switches, or you will have intermittent operations.

Best regards,

Link to comment
Share on other sites

Guest mgendron

Due to the staggeringly high cost of commercially-available products (approx $1000!), I want to build a control unit for a 117v sump pump motor. I want to use low-voltage DC for the switching (float switches) working a relay to start the motor. I will probably hang some "bells and whistles" on the controller, such as an alarm interface, automatic cycle button, etc. I would appreciate any guidance you can give me. . .heck, a complete schematic would be lovely!

 

Thanks

-Mark

Link to comment
Share on other sites

  • 1 year later...
If you have a solid understanding of motor controls I would suggest using a smart (or programmable) relay. The Moeller units we use allow you two analog inputs as well as 5 or more digital inputs. With this you can do a number of things, for example: use transducer for proportional control, add timers, counters, 7 day events and so on. They are great and cost as little as $125.00. I highly suggest you use the software to program instead of at the face of the relay. It supports standard relay logic.
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...