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The device usually acts as the interface of a sensor (such as a light curtain), designed to signal a safety-related event, typically when the light curtain beam's being "broken". OSSD signals are the outputs from the protective device (light curtain or scanner) to a safety relay .
Overload sensor – prevents the elevator from moving until excess load has been removed. It may trigger a voice prompt or buzzer alarm. This may also trigger a "full car" indicator, indicating the car's inability to accept more passengers until some are unloaded. Electric fans or air conditioning units to enhance circulation and comfort.
In 1955 many of the MIT team left to form Concord Controls, a commercial NC company with Giddings' backing, producing the Numericord controller. [15] Numericord was similar to the MIT design, but replaced the punch tape with a magnetic tape reader that General Electric was working on. The tape contained a number of signals of different phases ...
The Lakers have listed LeBron James (left foot injury management), Anthony Davis (left shoulder contusion) and D'Angelo Russell (left thumb sprain) all as questionable for Wednesday's game against ...
An elevator fell about 20 stories at a construction site. [28] Tehran, Iran: 6 0 2017-01-05 Six men fell out of a mine-shaft elevator due to a broken control switch. [29] Mogok Township. Myanmar: 6 0 2019-03-09 A construction elevator fell from the 15th floor. [30] Karachi, Pakistan: 5 12+ 1957-03-20
WASHINGTON (Reuters) -U.S. officials are communicating with people in Syria to seek information about Austin Tice, an American journalist captured there more than 12 years ago, White House ...
When is Hoda's last day? Kotb's last day on "Today" is Jan. 10. Kotb has worked with NBC News since 1998, originally as a "Dateline" correspondent, and has served as co-anchor of the "Today" show ...
Its development was centered at the same MIT labs that hosted the Numerical Control and the Milling Machine Projects. APT also was US Air Force sponsored and is notable for being the world's first major cooperative programming venture, combining government agencies, universities, and a 14-company team organized within the Aircraft Industries ...