Skip to main content

Reply to "Would this work? Reimagining the 282 Gantry Crane Controller"

@JD2035RR posted:

...   I'd still like to institute some sort of delay between the solenoid and motor functions when hoisting - not sure how to do that.

Does this look ok?  Any recommendations?

...


I don't quite understand the required timing/delay relationship, but if you are willing to use 12V DC as what you are calling the "signal" wire, there are all manners of "delay relay" modules that can insert a short settable delay (e.g., 1 second) between activation and relay closure.

Additionally, by using 12V DC as the "signal" voltage (instead of Accessory AC), you can then use inexpensive 12V DC SPDT relay modules...less than a buck per relay in example below!  The relays themselves would still switch Accessory AC as the "load."  Unless you have a stash of AC-coil relays, you might spend maybe $10 each for an AC-coil relay.

joy

And if you go the 12V DC route for the signal wires, it is generally easier to implement "logic".  By logic I mean for example having two inputs where either can activate the relay...the so-called logical "OR" function...which can be implemented by a pair of 10 cent diodes.

You would need a source of 12V DC for all this, which could be a 12V DC wall-wart.  Or there are modules which can convert Accessory AC to 12V DC for less than $5.

It's not quite clear from the joystick datasheet, but the photo suggests you actually have 4 completely independent SPST switches, 2-terminals per switch, and of course only 1 can be active at a time.  I don't know if this can be used to advantage but always good to know what you're dealing with.

Attachments

Images (1)
  • joy
Last edited by stan2004

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×