triggering a relay

[randyzimmer]

I've been trying to work out the settings on my JLD612"s to work a relay to heat a 40W 12DC element.

Its set for a K thermo and 220C, no EEEE is shown.
My final values have to be between 200 and 225 with 220 perfect.

I need just a ground to trip my solid state relay which is normally closed.
I've also tried to power the 12V coil on an automotive relay with no luck.
I have 3 of these things and I don't think there's a fault with them.

Today, I was trying it at 23C just to see what happens.
Sometimes I hear a trip and other times not.
Usually not.
The OUT light is on and the SSR 6&7 outputs show 13+V
I have continuity on 4&5 but things aren't happening for me.
Which OutY do I want?
I must be missing something.

I have only set values in the 0089 and 0001 menus.

[randyzimmer]

I think I have it, never got the SSR to work on my relays but I have the automotive relays triggering by using OUTY 4
terms 13 & 14
and finally figuring out AH is alarm high and AL is alarm low.
I had all my temps jumbled up.

[randyzimmer]

I also have concluded a relay on a circuit board is still just a mechanical relay on a circuit board.

[randyzimmer]

I'm back.
Still no luck with the PID side.

I picked up a relay:
NTE R22 1D16-12
SPST 16A 12VDC

Terminals 1&2 go on and read 13.5VDC on my meter but don't trip the relay.
Is there a preferred relay to use?

[Tech_Marco]

The output for SSR at #6,#7 are not designed to drive a mechanic relay but for SSR only. The max current it can output is 40mA or below.

You need to download the manual at viewtopic.php?f=13&t=3
and see my suggestion if you want to use an internal relay to drive an external relay for high power device controlling.

In your case, for a heating element of DC12V 40W, the current is runng about 3.5A, you better use a 25A SSR for controlling. Or, you can use an external relay but no reason not to use a SSR.


Marco

[randyzimmer]

Thank you for your reply Marco.
I made a mistake and called #6 and #7 1&2 in the last post.

I took it apart and see that my electronics guy sold me a non SSR relay.

Looking through the books, should I be worried that there's a minimum output of 24V?
That's the lowest minimum all the 25A SSRs have in the specs.

[richiem]

Randy, I sense you have a lot of confusion about how all this stuff works. Let me see if I can clear up a couple of things -- the SSR output is a very low current output as Marco said -- it will not operate a mechanical relay unless that relay has both a low coil voltage and low coil current -- such relays are usually used in instrumentation and are very small relays that don't have a lot of current carrying capacity on their contacts, usually less than 1 amp.

The relay contacts in the JLD612 do not supply output voltage and current -- they are just switches, so you have to provide an external 12V DC power supply that can be switched on and off by these relays when connected to your automotive type relay that operates the heater. The same power supply the runs your 12V heater can also operate the automotive relay through the JLD's relays. You probably should seek some knowledgeable local help with the wiring.