M1G Keypad trouble

[dscline]

Hello,
I also posted this on the Elk board, but trying here too. I installed my M1G a couple weeks ago. Today I removed the keypad to connect some wires up to the auxiliary input and output zones available on the keypad. The output got connected to a small relay, which will open/close to toggle my t-stat (mounted directly above the keypad) between occupied and unoccupied mode. The input got connected to the wires that WERE running to these inputs on the t-stat. The other end of that wire pair goes to an x-10 relay which formerly activated the occupied/unoccupied mode. This will be re-deployed to another purpose, but I went ahead and connected the wires while I was there.

Upon putting the keypad back in place, and powering up the system, the keypad displays "KP Addr->1 Lost. Comm.". A little whilei later, the voice announces "Keypad module missing". The only wire I disturbed was the black wire, which I temporarily disconnected to be able to join the commons from the relay and spare wire currently going to the x-10 relay. The brown & blue wires weren't previously connected, but now are attached as described above. It does get SOME communication, because on boot-up it correctly displays the control's s/n. None of the buttons do anything, except the Elk button beeps. What would cause this?

Thanks!

 

[Digger]

Sounds like an open or short on the dataline (white and green wires). You know that the + and - are ok since you have power at the keypad.

Elk set up the keypads to beep if they lose communication with the panel.

 

[dscline]

Thanks. That was my first thought, but if that's the case, how is the keypad getting the s/n from the control?

 

[Digger]

It might have the S/N in its memory. Not sure. That is a question for Spanky......

 

[dscline]

As it turned out, it was a break in the white wire. Between the fact that it worked before, and the fact the keypad was still displaying the s/n of the control, I figured it must have had something (directly) to do with the connections I'd made to the auxilliary zone/output. When I installed the M1, I re-used the existing keypad wiring from the previous installer, and he left NO slack in that wiring. I guess the one last messing around with the wiring caused a weak link to break.

All fixed now.

 

[Digger]

Glad to see it worked...... FYI its pretty hard to damage an M1 or an ELK keypad. Odds are if something happens it something basic.