Mach 3 E stop problem

Hi is there any one who has come across this problem.
When the E stop is activated the motors are armed and power is sent to the boards (you can actually hear the pitch of the electronic noise on the motors) but the motors can't run because of the e stop if the stop is cleared the power to the motors is lost but the Dro Still operates ?

Sounds as though the E-Stop wiring has not been done correctly, main power removed from all motors and Mach advised via the E-stop input pin.
Al.