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Pump contactor jumps when ON-OFF power L1 to an OFF SSR #1

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TGit-Tech opened this issue Apr 5, 2017 · 0 comments
Open

Pump contactor jumps when ON-OFF power L1 to an OFF SSR #1

TGit-Tech opened this issue Apr 5, 2017 · 0 comments

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@TGit-Tech
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TGit-Tech commented Apr 5, 2017

The current implementation using a Nema Size 2 Contactor and a Zero Cross SSR causes a spike activation on the coil when switching from OFF to AUTO. Specifications on the SSR state that a 10mA leak occurs but the activation is very temporary ( mS ); not even enough to turn the motor but the motor does jolt just for a second. The symptom isn't even accurately repeatable. Sometimes no jolt happens.

I'd like to see if the Random type SSR ( recommended for inductive loads ) will solve this symptom - however the system does seem to work just not as ideally as expected.

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