Greg,
I recently faced this problem at a customer though the machine was Topaz X but the problem was same. So I suggest you first check if the GOOD LED is ON on the Servo card down in the MCX box. Also check the same GOOD LED on the System board in the MCX box. If they're OK, these cards are OK.
Now just release all the emergency switches/covers and try to release the emergency. Then go at the back side and check the LED sequence on the connection board. It basically tells you the reason for the emergency. If it gives a logic to you, solve it. If not, I would first format the Flash Disc and reinstall the VIOS. I faced the same problem and the final solution was just formatting the Flash Disk and re-installing the software.
I assume that you've already tried what SuMoTe has mentioned - to move all axes to their mid positions.
Please make sure to do the system data back and database backup using the 6th Second menu.
Do write to me at vinit.verma@prosemtechnology.com if you need any further information.
Regards Vinit
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