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Oliver Sedlacek
11/27/15 04:43
Read: 462 times
Uk


 
#190586 - Relay and timer?
Responding to: Raghunathan's previous message
The protection mechanism doesn't sound too complicated. How about routing the supply through the NC contacts of a relay. Then you can use a 555 timer (I can't believe I just typed that) in it's re-triggerable monostable configuration with a time delay of 5+ seconds. Its output would then energise the protective relay and cut the supply.

List of 4 messages in thread
TopicAuthorDate
Fail safe solenoid switching      Raghunathan      09/16/15 02:47      
   I'm thinking about this and ...      Erik Malund      09/16/15 07:06      
   Relay and timer?      Oliver Sedlacek      11/27/15 04:43      
      use a $0.20 micro ...      Erik Malund      11/30/15 07:09      

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