In automotive manufacturing operations-such as body assembly-maintenance personnel typically enter the safety enclosure to perform maintenance tasks only after confirming that the robot is in a stopped state. However, even when a robot is in a paused state, it may suddenly restart due to malfunctions or accidental operation, potentially resulting in personal injury. To address this risk, UL standards mandate that robot systems be equipped with a visual indicator enabling personnel to clearly distinguish whether the robot is in a "safe stopped state" (servo power OFF) or a "hazardous stopped state" (servo power ON). When mounting safety status indicators directly onto a robot-particularly in environments such as painting lines that require protection against water and dust-it has been common practice in the past to enclose the indicators within protective, sealed housings. However, this approach presents several drawbacks: not only does it reduce the visual clarity and visibility of the indicator light, but mounting the assembly to the robot arm also necessitates the use of additional components-such as mounting brackets and cable routing hardware-thereby incurring increased costs and labor requirements. Consequently, R&D teams at industrial robot manufacturers have been continuously seeking simpler, more efficient methods for installing these safety indicators.
An indicator light that combines water- and dust-proof capabilities with high visibility offers a definitive solution to the issues previously encountered in this field. By utilizing an indicator light that is easy to install-while simultaneously ensuring high visual clarity, providing robust water and dust protection, and eliminating the labor and costs associated with installation-manufacturers can supply users with more suitable products, thereby enabling users to operate within a safer working environment. The ideal solution for achieving this "win-win" scenario for both robot manufacturers and end-users is Oubaolong's "HBJD-50C Series" three-color warning light. This product meets IP67 standards-requiring no additional waterproofing or dust-proofing measures-and maintains absolutely undiminished visual clarity. Furthermore, it offers two distinct mounting options, supports custom cable lengths, and can be easily adapted to robots of any size. In a single stroke, this indicator light resolves all the long-standing issues that previously plagued the industry-including poor visual recognition, time-consuming and labor-intensive installation, and high costs.
