BCS Float Switch Cable Pin Assignment

Discussion of the physical aspects
Post Reply
jimg@gsp
Posts: 36
Joined: Tue Dec 23, 2014 10:56 am
Bot?: No

BCS Float Switch Cable Pin Assignment

Post by jimg@gsp » Thu Jul 06, 2017 2:24 pm

Hello,

I am using 2 wires of a 3-wire 22 gauge cable for float switches. I have XLR connectors at the control box and M12 quick-dissconects at the float switch. My float switches are the 1.5" TC stainless side mount type.

Can someone inform me of the correct XLR/M12 pin assignment?

I have tried various combinations without success. Is there an easy method of testing the float switch open/closed position from within the BCS software?

Your help is much appreciated!

User avatar
JonW
Site Admin
Posts: 1440
Joined: Sun Jul 18, 2010 7:51 am
Bot?: No
Location: Huntington Beach, CA
Contact:

Re: BCS Float Switch Cable Pin Assignment

Post by JonW » Thu Jul 06, 2017 3:11 pm

How are you currently wiring the M12 to the BCS? There is no standard way to use an M12. You just need to use 2 pins on it for the DIN to operate. You feed 5V to the float on one wire and have a second wire going to the DIN on the BCS. When the float closes, it will simply supply the 5V input to the DIN port. You can watch the DIN open/close on the main BCS screen without even needing to program it into a process. Make sure you enable the DIN in the BCS Settings page.

jimg@gsp
Posts: 36
Joined: Tue Dec 23, 2014 10:56 am
Bot?: No

Re: BCS Float Switch Cable Pin Assignment

Post by jimg@gsp » Thu Jul 06, 2017 4:48 pm

Thanks for the reply, Jon.

My control box was a custom build by Electric Brewing Supply. I did email them about this, but no reply.

From the inside of the box, it appears that the XLR's are wired using pins 1 & 2 (side pins if 3-pin triangle).

I will insure that the DINs are enabled and assigned correctly and report back.

User avatar
oakbarn
Posts: 648
Joined: Thu Jan 05, 2012 2:28 pm
Bot?: No
Location: Texas
Contact:

Re: BCS Float Switch Cable Pin Assignment

Post by oakbarn » Fri Jul 07, 2017 8:15 am

Here is a simple diagram of how I would wire a float. You need to look at how they wired it or if doing yourself, then follow the diagram. DINS ARE not grounded. Just run the +5vdc to a DIN.
Float ToggleXLR.png
Float ToggleXLR.png (117.37 KiB) Viewed 73 times

jimg@gsp
Posts: 36
Joined: Tue Dec 23, 2014 10:56 am
Bot?: No

Re: BCS Float Switch Cable Pin Assignment

Post by jimg@gsp » Fri Jul 07, 2017 12:44 pm

Thank you, oakbarn & Jon. This box is running 60a x2 and a BCS-462. Ryan at EBS has (4) float switch XLR wired at the box utilizing pins 2 and 3 (side pins of the 3-pin triangle). For each XLR, one of the two wires is run to an element switch on the panel and the other to a relay, and then on to a DIN rail contactor.

I am attempting to use different pin combinations on the XLR and M12 end of a float switch cable to fire a DIN that I can detect on the main page of the BCS software as Jon has suggested. All DIN's are enabled, but no luck.

The float switches are supposed to be wired to kill the element when activated.Will this wiring scenario not show the switch firing on the main page?

Thanks again!

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest