Another joint 0 on limit switch error

Hello,

I'm struggling on this one...
You can find enclosed my conf files.
I have a 7i96s and a 7i73 and everything seems to work fine.
I have 2 limit switches on my X axes (lathe), They are both connected on the 7i73 and it seems OK. 
On the X+, my limit switch is also my Home switch.
The homing procedure goes well. But once it's homed, the offset of 10mm is applied, then when the lathe is idle, I get this joint 0 on limit switch error.

On HAL show, I don't see the pin changing color like if it was a noise or something. There is 10K pull up resistor on these pins if I remember well the documentation of the 7i73. So, what is going on? I'm a bit (totally) lost on this one.

Thank you for your help


 

Hi Tommy,

This is what I said, in HAL show (Show hal configuration), my light are perfectly stable and I see any color blinking at all...

as you can see here, it seems very stable but i always get this error. Phisically, my axis is not touching my limit switches, i'm in between

Start at the beginning and test every step progressively.
1. If you get an error finishing read, all inputs are disabled. 
2. Confirm with a multimeter that the wiring is correct and you can see voltage changes at the Mesa input
3. Confirm that your hal file is referencing the  pin you have connected your wire to in halshow
4. Check all pins in halshow for activity when the switch is activated in case you have wired it to the wrong input

It is so easy to wire things up wrong so it's important to follow a step by step approach to trouble shoot issues.

Hi rod, thank you for your help. 
I manually tried both switch and they are working well. Here is what I don't understand :

If I manually push on one limit switch, my signal joint.0.pos.lim.sw in become high,I get the joint error, then the tickbox "override limit" which is normally greyed out become available 

But when I don't manually push the limit switch, bot signal pos and neg lim sw are low, the tickbox is still greyed out and I get the error. 
So I'm not sure my error is linked to the limit switch. And my homing routine works fine with a first rough touch, then a second fine touch and then come back 10mm. 

If you are using the 7I73 input for a limit switch, I would debounce it.

Also why are you not using 7I96S isolated input for the limits? These are more resistant to EMI
and have built in debouncing (set the inm "slow" attribute for the corresponding inm input pin)
 

Hello PCW,

I debounced when using the 7i73 but without success.
I tried with isolated input on the 7i96s and it's working fine.
Do you have some documentation regarding the slow option? I find the input in Hal show but it's always low.

I'm very happy that it's working but I still don't get something. If it's due to the EMI, why I don't see the dot blinking in Hal show? It's strange...