System Messages - Alphabetical List Set for CASE INDEPENDENT searches (None) Explanation: The EXACT extended command has been used to change the method by which character case is considered during string searches. The message indicates how case is considered in subsequent searches (for the current or future search-for strings). User action: None. This is an informational message. *Skew envelope error* Mtr n (-1022) Explanation: The two motors associated with a split robot axis were not tracking each other with sufficient accuracy. User action: Make sure nothing is obstructing the robot motion. Turn on high power and try to perform the motion at a slower speed.
If necessary, use the SPEC utility to increase the maximum skew error. *Soft envelope error* Mtr n (-1006) Explanation: The indicated motor was not tracking the commanded position with sufficient accuracy, indicating a failure in the hardware servo system or something impeding the path of the robot. Because this was not considered a serious error, a controlled motion stop occurred and high power remains on. User action: Try to perform the motion at a slower speed. Make sure nothing is obstructing the robot's motion. *Soft overspeed error* Mtr n (-1028) Explanation: During manual mode, the servos have detected an attempt to move a robot axis at a speed faster than allowed.
The motion is terminated but robot power remains enabled. User action: Move the robot at a slower speed. If you are near a mechanical singularity, move the robot using joint mode instead of world or tool mode. *Software checksum error* (-316) Explanation: During processing of a FREE command the eV+ system has detected a checksum error in the system memory. This indicates a problem with the system software or hardware. (Note, however, that a checksum error is introduced if any patches are made to the system software after the system is loaded from disk and started up.) The following codes are appended to the message indicating where the error occurred:
Os, operating system; eV+, eV+ interpreter or trajectory generator; Vi, vision software; Sv, servo software. eV+Language Reference Guide, v2.x, 18319-000 Rev A Page 650