Author Topic: Test jig for solid state relay  (Read 235 times)

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Offline dareswitch

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  • Country: au
Test jig for solid state relay
« on: May 28, 2019, 05:19:46 am »
Hello All,

I'm very new to this forum and still working out my electronics skills in  designing.

Can some one please help me to build a circuit to test a Solid State Relay unit D1D40.

Have a circuit with  - SPDT switch and 4 LED (companied with ressitors)and then used 8 x 180Ohm Resistors at the load end of D1D40 relay which get very hot upon operation and i want to come up with a solution for this problem .

Please see  4 LED are used  for below purposes in my circuit-

 1st LED - Power ON indication
 2nd LED - to indicate whether the Relay is Active
 3rd LED - to indicate Fail open
 4th LED - to indicate FAIl Closed

BUt i need something simple but everything covered.
Kindly suggest

Thanks


 

Offline soldar

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  • Country: es
Re: Test jig for solid state relay
« Reply #1 on: May 28, 2019, 11:23:48 am »
Much simpler and better to just connect an incandescent lightbulb as a load and drive the input with a suitable circuit and a switch.
All my posts are made with 100% recycled electrons and bare traces of grey matter.
 

Offline dareswitch

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  • Posts: 3
  • Country: au
Re: Test jig for solid state relay
« Reply #2 on: May 28, 2019, 10:39:20 pm »
Thanks but we need a test Circuit to check the relay functionality as it is how it is meant to be
 

Offline soldar

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  • Country: es
Re: Test jig for solid state relay
« Reply #3 on: May 28, 2019, 11:19:48 pm »
How are you going to test a SS relay without connecting a real load? I can't see how that is practical.
All my posts are made with 100% recycled electrons and bare traces of grey matter.
 


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