CSMIO IP-M how to connect emergency stop ... help please

[SaporeCNC]

Jazz thank you again for your time and dedication !!!
sorry to bother you once again ... I have a homemade cnc with electronic Leadshine HBS86H drivers and 86HBM80-01-1000 engines with encoders and the IPM controller as mentioned before.

I have everything connected X-Y-Z-A

I configure everything according to your video in youtuve
(https://www.youtube.com/watch?v=mNZ4wOTg8jE&t=35s)

axes-------------------------------------IPM pins
X channel 0----------------------------- 1-2 14-15
Y channel 1----------------------------- 3-4 16-17
Z channel 2----------------------------- 5-6 18-19
A channel 3 (slave of Y)----------------- 7-8 20-21

when feeding the drivers everything perfect, I move with the keyboard the X and Z axes
but I try to move the Y-A axes and the alarm of both drivers goes off

I manually move the axes without any problem

I am doing something wrong ? What could the alarm be triggered?

Thanks for reading and helping in my consultations

Greetings Jorge