martinberryman
Aluminum
- Joined
- Feb 18, 2011
- Location
- Vancouver, BC
My Fadal 4020 is not fully starting. I get an error that scrolls on the screen continuously as soon as I hit the CNC Start button.
The message is: Clear an Emergency Stop Condition - Press the jog Key to reset the emergency stop - Axis Controller does not respond to NC. Pressing any of the keys on the pendant keyboard has no effect on the message - it just keeps scrolling. I checked 3 phase voltages and all 3 legs are 240V inside the external disconnect and at the lugs inside the cabinet.
The machine is a 1994 Fadal 4020 DC machine with extended Z, 4th axis and the 88HS control
I've jumpered out the part of the E-stop circuit that allows the control to put the machine in emergency stop (per the treoubleshooting section of the manual)by placing a jumper from F16 to F12. With the jumper in place, I now have 120V in most places on Board 1100-1, and when I hit the e-stop, the voltage drops back down to approx 16V. The maintenance manual describes the E-Stop circuit as pulling the voltage down to 0V or something close to it, so I think that's the behaviour I'm seeing. I now have 120V along the e-stop circuit all the way to TB-1-10 on the 1100-1 board. As I read the circuit, the K-1 and K-2 relays should now feed TB-1-09 with 120V, but they don't. I tried swapping the K-1 and K-2 relays with some chosen at random from 1100-2 but there was no change in behaviour. I'm stumped / beat. Hopefully somebody can suggest the next thing to test / look at / try to understand. Thanks in advance.
The message is: Clear an Emergency Stop Condition - Press the jog Key to reset the emergency stop - Axis Controller does not respond to NC. Pressing any of the keys on the pendant keyboard has no effect on the message - it just keeps scrolling. I checked 3 phase voltages and all 3 legs are 240V inside the external disconnect and at the lugs inside the cabinet.
The machine is a 1994 Fadal 4020 DC machine with extended Z, 4th axis and the 88HS control
I've jumpered out the part of the E-stop circuit that allows the control to put the machine in emergency stop (per the treoubleshooting section of the manual)by placing a jumper from F16 to F12. With the jumper in place, I now have 120V in most places on Board 1100-1, and when I hit the e-stop, the voltage drops back down to approx 16V. The maintenance manual describes the E-Stop circuit as pulling the voltage down to 0V or something close to it, so I think that's the behaviour I'm seeing. I now have 120V along the e-stop circuit all the way to TB-1-10 on the 1100-1 board. As I read the circuit, the K-1 and K-2 relays should now feed TB-1-09 with 120V, but they don't. I tried swapping the K-1 and K-2 relays with some chosen at random from 1100-2 but there was no change in behaviour. I'm stumped / beat. Hopefully somebody can suggest the next thing to test / look at / try to understand. Thanks in advance.