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the Solenoid hold state

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EDA_hg81

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the Rated Solenoid Voltage (Vdc) is 6V.

If this mean the input voltage to Solenoid can't be greater than 6V?

when Solenoid is in hold state, what is the current consumption?

Thank you all again.
 

You need to look at the full specification. The "rated" voltage is usually the nominal. There will be a minimum pull-in voltage, a minimum hold voltage and a maximum voltage.

Keith.
 

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    EDA_hg81

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I am looking at 04-UTS-258 UTS - UltraThin Electronic Shutters.

but can't find those data.
 

hi
measure the coil resistanse with OHM meter ...then use I=V/R to find current
consumption
 

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    EDA_hg81

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I suggest you contact Melles Griot as their web site links are incorrect. You need some of the important documents off this page:



but the links are incorrect. You need to pulse the shutter with 4x the rated voltage for 20ms (and presumably hold the rated voltage for as long as you want the shutter to be open). Given the cost of the shutters it is worthwhile getting the proper data! Sorry I cannot help more.

Keith.
 

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    EDA_hg81

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express my sincere thanks to all of you.

Have a nice weekend.
 

keith1200rs said:
I suggest you contact Melles Griot as their web site links are incorrect. You need some of the important documents off this page:



but the links are incorrect. You need to pulse the shutter with 4x the rated voltage for 20ms (and presumably hold the rated voltage for as long as you want the shutter to be open). Given the cost of the shutters it is worthwhile getting the proper data! Sorry I cannot help more.

Keith.
Click to expand...
Keith - 4xrated voltage for 20ms seems strange to me. Most relays actuate in a couple of milliseconds. I did some experiments with overdriving a relay like this and found it was best to overdrive it for maybe 1ms or so (depending on the part) and then bring it down to the rated voltage. Otherwise the contact would bounce really badly. Though I suspect the ideal solution is to attach a current driver for it - and drive it at a constant current. That is on my list of things to test as soon as I get a good excuse to do so :)
 

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An electromagnetic shutter isn't a relay - and e.g. doesn't "bounce". You can either believe the quoted operation suggestions or try find an optimal operation mode on your own. I guess you're not particular familiar with the said device. In this case, I would be cautious with giving speculative suggestions.
 

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FvM said:
An electromagnetic shutter isn't a relay - and e.g. doesn't "bounce". You can either believe the quoted operation suggestions or try find an optimal operation mode on your own. I guess you're not particular familiar with the said device. In this case, I would be cautious with giving speculative suggestions.
Click to expand...
I'm not familiar with shutters but I would assume that the same would hold true - that if you overdrive them they'll bounce against whatever mechanical stop there is. But maybe they are designed to do this. I wasn't giving advice, only asking Keith for clarification. Sorry if this was unclear.
 

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uoficowboy said:
I wasn't giving advice, only asking Keith for clarification. Sorry if this was unclear.
Click to expand...

All I am doing is quoting what little I can find out about the shutters given that Melles Griot cannot keep their web site in order! The shutters cost around $1000 each so I would make sure I get the data off them first!

Keith
 

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