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Old April 7th, 2006, 02:56 AM   #7
ushidayo
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Japan

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Join Date: Jan 2004
Location: Not far from Tokyo
Posts: 200
All the systems I've seen in Japan use NPN sensors and the DC24V is left floating. Machine safety doesn't seem to be such a high priority here as it is in the west. No lockable isolators and e-stops connected directly to PLC inputs. Maybe the operators are a bit more careful here, or perhaps they just keep quiet when they lose a finger!
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