Discuss SSR relay problem solution in the UK Electrical Forum area at ElectriciansForums.net
The round red light that flashes is that of the heating, when it is on the heating is on, when it goes off it is because the controller does not send current to the SSR relay and consequently the heating light does not turn on either. The square light you see instead is a two-pole switch. The round knob is a switch-off timer which, if set, switches off the heating for a set amount of time. The noise you hear I believe is the controller, the light or the SSR relay I don't think they can make noise.To what is the round orange panel lamp on the left of the controller connected?
what is the purpose of the round silver knob to the left of the round orange panel lamp? Is it a timer?
Is the clicking sound from the controller?
I did the test by leaving the oven on and waiting for more than 6 hours after reaching 800 degrees. The lights of the AT were still flashing, the AT unfortunately did not work.Yes. It could take several or many hours for the AT to tune successfully. But, even after a very long period, the AT as designed and implemented inside the controller might be unable to home in to the best values using its trial and error approach to tuning. In which case we leave AT off and use the figures I said to use and adjust them over the life of the oven until we are satisfied with the performance. Auto tuning algorithms are not perfect in all applications.
I must repeat that you have to allow AT at least 3 hours from when the oven first reaches 800C to attempt tuning and ideally longer say 6 hours. At the moment AT may not complete because you turn the oven off too early.
Good evening marconi, for about 10 days I'll be away, as soon as I'm back I'll do the tests you requested and I'll put the results on the forum, as always thanks for your helpI conclude that AT will not work for your oven. We have tried to use it many times without success. Turn it off and just use the controller with a setting of 800C. Please tell me how the oven performs and allow an hour after reaching 800C.
AT makes some assumptions about the system (your oven) the controller drives. It may well be your oven does not satisfy one or a few of these assumptions which means trial and error does not home in on better and better values for P and I and the other variables.
I conclude that AT will not work for your oven. We have tried to use it many times without success. Turn it off and just use the controller with a setting of 800C. Please tell me how the oven performs and allow an hour after reaching 800C.
AT makes some assumptions about the system (your oven) the controller drives. It may well be your oven does not satisfy one or a few of these assumptions which means trial and error does not home in on better and better values for P and I and the other variables.
Sorry for the absence.Any feedback on this,did we resolve the situation?
set your multimeter to DC volts range so you can pick up 3-32 volts. Connect Positive lead to 3 and common or negative lead to 4. MAKE sure you are reading volts not current....
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