Brother TC-225 / TC-229 adventure!

Well I'm working on Brother tc-227.. maybe it's different atc from 225.. even though everything were same till now..
There are total 7 wires. 4 for encoder, 1 for deceleration track, 1 for ground and 
​1 for +24v
Atc still works fine with original controller.
If I leave original powering all 5 encoder input wires are -23.9v. When I block encoder sensors it drops to -23.6v
If I unplug ground wire then all inputs are +13v
When I block sensors it drops to ~11.6v but thats not enough for bob to trigger input...
Is that how it should be? Only 0.3v drop when sensors are triggered?
I'm sorry it may sound stupid but I'm so confused about this.. 
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That's not right. when switched, it should go from 24v to 0v or close enough. They should behave as an on off switch. You are doing something wrong.

The tc 221, 225, 227, 228, 229 are all the same principle. plausible they reversed to sourcing on the 227, but even then you got something weird going on.

I have the 229 wiring manual, I will look it up later and see if there's anything useful in there (im in the middle of wiring a room in my house haha)

www.ebay.com/itm/175182704378

This is the same encoder.
It says for tc321, tc201, tc217 tc227
Maybe they are different then
 

different board layout, same function, but yeah, I guess it's entirely possible they are wired different. Odd though.

So I fixed the issue with voltage drop..
Now it's 0v when not blocked and -24v when blocked
Any ideas how to switch that to +24v? because I cant' just switch encoder ground and +24v
I think all brother tc 227 IO is sourcing inputs. My original limit switches or home were also -24v but they worked just by flipping ground and +24v.
 

I' m measuring by putting one multimeter wire on encoder +24v and other on one of the encoder output wires
Encoder is getting power from mesa 7i77 gnd and v field ( it is same when I use brother tc 227 original wiring)

If put pull up resistor to that input then it works. Is it ok if I do this for all encoder inputs on BOB?

pikis wrote:

If I put pull up resistor to that input then it works. Is it ok if I do this for all encoder inputs on BOB?