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February 24, 2012

The importance of emergency stopping

How do you ensure that your emergency stop buttons will work when needed? The emergency stop is the last line of defense and a good article by Robin J Craver mentions the following:
"The nature and operation of the machine must be considered.
· Is it safe to have the emergency stop system cut the power to the machine drives and actuators? This may result in the hazard “free falling” leading to a more dangerous situation.
· Should the system actuate a brake or clamp?
· Would stopping the machine in position result in a worsening of an injury?
· Should the system allow the machine to continue on or reverse to a safe position?"

 Read the article in this link.

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