Unablet to clear E-stop interlock on a 407 controller even with front panel E-stop button disengaged (Figure 1) and jumper plug on the back of the controller for the external E-stop out connection (Figures 2 & 3).
Figure 1 – 407 front panel E-stop button with E-stop interlock
Figure 2 – E-stop jumper plug location on a 407 controller
Figure 3 – 407 E-stop jumper plug pin-out
“I was able to solve the problem by taking out the power supply and re-seating all of the connections to the back-plane and front panel.“