Universal Robots UR20 Service Manual page 6

1. Introduction
PROTECTIVE GROUND
Indicates protective grounding.
NOTICE
Indicates the risk damage to equipment and/or useful information that should be
particularly noted.
READ MANUAL
Indicates more detailed information that should be consulted in the manual.
This warning draws attention to procedures which serve to prevent or remedy emergencies or mal-
functions:
MANDATORY ACTION
Procedures marked with this warning must be followed exactly.
Service Manual 3 UR20