OK.
BTW, back in post #15 I meant to say pin2 to L1 not L2.

I think I got it?!?!? If not I must be close...

 

I think I got it?!?!? If not I must be close...

Well kind of, sort of, not really.
I guessing that shows pins6 connected to pins2.
I see when power is applied both Timers activate but immediately shut each other OFF through their respective NC contacts.
Then the whole cycle repeats as fast as the relay contacts can open and close.

 

Well kind of, sort of, not really.
I guessing that shows pins6 connected to pins2.
I see when power is applied both Timers activate but immediately shut each other OFF through their respective NC contacts.
Then the whole cycle repeats as fast as the relay contacts can open and close.

Yes. In my latest I have L1 going to pin 6 directly. So that will always be shorted.

I'm so lost. Am I using the correct number of timed contacts? Ie 2 from 1TDR and 2 from 2TDR? Since these are solid state there are no instantaneous contacts like found on pneumatic timers.

Should I have 2 timed relays in series with the light?

 

Yes. In my latest I have L1 going to pin 6 directly. So that will always be shorted.

I'm so lost. Am I using the correct number of timed contacts? Ie 2 from 1TDR and 2 from 2TDR? Since these are solid state there are no instantaneous contacts like found on pneumatic timers.

Should I have 2 timed relays in series with the light?

Yes. In my latest I have L1 going to pin 6 directly. So that will always be shorted.

I'm so lost. Am I using the correct number of timed contacts? Ie 2 from 1TDR and 2 from 2TDR? Since these are solid state there are no instantaneous contacts like found on pneumatic timers.

Should I have 2 timed relays in series with the light?

 

Should I have 2 timed relays in series with the light?

Correct, the light will be in series using contacts from both Timers but you are still lost.
BTW, If the Timers are actually HC3R-A the contacts are from a physical DPDT relay not SSR.
Hint: Both Timers stay powered when the switch is ON meaning pin10 to L1 and pin2 to L2

 

Correct, the light will be in series using contacts from both Timers but you are still lost.
BTW, If the Timers are actually HC3R-A the contacts are from a physical DPDT relay not SSR.
Hint: Both Timers stay powered when the switch is ON meaning pin10 to L1 and pin2 to L2

Ok I'm not sure. I've been working on this one problem for at least 8 hours and still lost.

 

Correct, the light will be in series using contacts from both Timers but you are still lost.
BTW, If the Timers are actually HC3R-A the contacts are from a physical DPDT relay not SSR.
Hint: Both Timers stay powered when the switch is ON meaning pin10 to L1 and pin2 to L2

I checked a photo of my lab board and it's a Omron HC3R.

 

We know if pin6 is connected to pin2 when power is applied the Timers will activate the relay.
Now we need a way to disconnect pin6 from pin2 on both Timers to start the time delays.
Hint: Timer1 pin6 is connected to pin2 through contacts using both timers.

 

We know if pin6 is connected to pin2 when power is applied the Timers will activate the relay.
Now we need a way to disconnect pin6 from pin2 on both Timers to start the time delays.
Hint: Timer1 pin6 is connected to pin2 through contacts using both timers.

Do you drink coffee btw? You're getting one from me for all your troubles/help.

Here's what I think might actually work.
My logic:
Switch (sw1) closes. Immediately 2TDR energized. Both 2TDRs change position for 14 seconds. Meanwhile, 1TDRs both also change. Since 1TDR1 opened, this leads to the timer starting, for 9 seconds. After which, 5 seconds will remain where 1TDR2 is open(light off for 5 seconds).

 

Almost there.
Timer2 delay never starts if pin6 is shorted to pin2.
Remember the contacts have a NO and NC position.

 

Almost there.
Timer2 delay never starts if pin6 is shorted to pin2.
Remember the contacts have a NO and NC position.
View attachment 336492

Yes that's true. I know there are only 4 sets of contacts.

2 sets are used in series with the light.

Leaving 2 sets. If based on your hint above that Timer 1 will use 2 sets of contacts, that leaves no sets available for 2TDR. However, the only option would be to connect it in parallel somehow where 2TDR and 1 TDR both share 1 set of contacts from one of the timers.

 

Timer2 needs pin6 reconfigured using TDR2
TDR2 is in the right place only need to rethink also using the NC.

 

Yes that's true. I know there are only 4 sets of contacts.

2 sets are used in series with the light.

Leaving 2 sets. If based on your hint above that Timer 1 will use 2 sets of contacts, that leaves no sets available for 2TDR. However, the only option would be to connect it in parallel somehow where 2TDR and 1 TDR both share 1 set of contacts from one of the timers.

I feel satisfied the requirements. 4 sets used but one set is shared between the 2 timers.

Upon sw1 closure, 2TDR1 and 2TDR2 switch. 1TDR now in delay. 9 seconds.

 

I feel satisfied the requirements. 4 sets used but one set is shared between the 2 timers.

Upon sw1 closure, 2TDR1 and 2TDR2 switch. 1TDR now in delay. 9 seconds.

I think there's a delay in my comments posting. Please ignore last post #33

 

Yeah, that doesn't work either.
Need to rethink how to use the contacts.
See the arrangement on pins 1-3-4 and 11-8-9

 

Yeah, that doesn't work either.
Need to rethink how the contacts are arranged
See the arrangement on pins 1-3-4 and 11-8-9
View attachment 336505

I feel I understand these contacts.
1 and 11 being common.
1-3 and 11-9 are NO
1-4 and 11-8 are NC.

I'm using these contacts in my schematic however I'm not labelling them and have used all 4 of them. 2 sets in series with light and 2 sets with 1TDR. I attempted in my previous schematic to use one set that was used between 2-6 on 1TDR but I feel like I'm now further than where I was before.

 

Don't despair.
Going to show how Timer1 is configured see if you can configure Timer2 and the light.
T1 represents a Timer1 contact and T2 a Timer2 contact

 

Don't despair.
Going to show how Timer1 is configured see if you can configure Timer2 and the light.
T1 represents a Timer1 contact and T2 a Timer2 contact
View attachment 336506

Thank you for your words of encouragement and continued persistence trying to encourage me to think this through.

I have come up with this.

For me, it makes sense.

Close Sw1. Both timer coils are energized through 2-10 and also since closed between 2-6, then ALL contacts are in delayed timer and counting. 1TDR contacts will both open after 9 seconds however, 2TDR continues until 14 seconds exhausted. After 14 seconds elapse, 2TDR reclose (resets timer on re-energization) and cycle starts again.

 

Congradulations it's correct!
I added some numbers for clarity.

 

Congradulations it's correct!
I added some numbers for clarity.

View attachment 336511
View attachment 336512

This is amazing!

Thank you sghioto! One of the things that confuses me is that I failed to think that I can reuse a common point. While we have 4 sets of contacts, 2TDR 11-8 used on the timer and 2TDR 11-9 used in series with light are the same common just different throw (if that makes sense).

I have lots to learn still but this encourages me to continue and not give up.

As promised, your coffee is on me. I'll DM you.