Mesa card 7i90 error following

Hi, can you help me?, I have board 7i90hd with 7i85s in pwm mode, motors calibrated and manual move its ok, run the program then work and randon execution time have error following in all axes, i revised the 7i90hd the w1 jumper it's in down position, w6 up position, this is problem?, and the fpga could damage?.
Thanks.

How is the 7I90HD interfaced to the host computer?

Interface host integrated parallel port with epp mode.

It sounds like perhaps a ground loop generating noise in the EPP interface

A shorter parallel cable and single point grounding may help as may
common mode chokes (ferrite beads) in any connection to noise sources
(Motor drives etc)

ok thanks, i will review the connections.