This fault is generated by a controlling device, such as a PLC, sending an Immediate Stop Signal to the robot on the UOP Input. To temporarily disable this signal and all UOP signals, disable the UOP inputs.
Go to system -> config and disable UOPs
If your robot does not have a config menu then do the following.
1) Hit menu -> 0 Next -> System
2) Hit F1 and select Variables
3) scroll down to $OPWORK -> hit enter
4) scroll to $UOP_DISABLE
5) change value to 1 and hit enter
** the robot will no longer run in an automatic mode with UOP control until the value is changed back to Zero.