1. Proposed New (Third) Edition for UL 1740 including the following changes: a) Requirements for operation upon failure to complete intended motion/Locked rotor abnormal test; b) Requirement for equipment to stop and alert teacher prior to a "singularity" event; c) Provision of easily unlocked means to exit workcell from within; d) Requirement that manufacturers provide Lockout/Tagout procedures in the Service and Maintenance Manual; e) Requirement that the brake release mechanism be readily accessible without the use of a key or special tools; and more.
ANSI/UL 1740-2007 history
2018ANSI/UL 1740-2018 UL Standard for Safety Robots and Robotic Equipment (Fourth Edition)
2007ANSI/UL 1740-2007 Standard for Safety Robots and Robotic Equipment