Hello,
I am looking for a solution to test a piston feeder of my own design,
what I mean is this: the current cooker controller ( a regular proton pid controller) does not have a feeder control, it only has an output for the CH pump and fan.
- i have made a piston feeder according to generally available information, preliminary tests have been made successfully
- i don't want to buy a new controller for the time being, I would like to make a simple control based on a time relay, however I can't find anything at a low price ( up to 100 zł +-50 zł ) meeting the criteria :
1. works in a loop ( e.g. gives voltage for 3 sec every 200 sec )
2. pauses but does not reset the countdown during voltage loss ( voltage from the controller from the output to the blower )
3. I.e. I switch the controller on, it switches on the fan and feeder, the temperature reaches the preset one (the feeder is in a loop), the hysteresis is on (it blows for 3 seconds every 5 seconds), the relay pauses the countdown of feeding for the time of the fan stoppage) the temperature exceeds the preset + hysteresis, the fan switches off (pause on the feeder relay), the temperature drops, the fan switches on, on the relay the countdown is resumed, etc. I would like it to work taking into account the maintenance of the fan and the voltage.
I'd like this to work with the maintenance, currently the timer relay starts feeding coal after a voltage is applied and counts down again, but e.g. during maintenance when there is a blowdown it feeds coal unnecessarily, I'd like to avoid this or at least minimise these negative effects of simple control.
The assumption is that if all goes ok then I want to buy an IRYD RTZ PID prond.
If anyone knows of a ready-made solution or can suggest how to "get it right", please give me a hint.
Regards
I am looking for a solution to test a piston feeder of my own design,
what I mean is this: the current cooker controller ( a regular proton pid controller) does not have a feeder control, it only has an output for the CH pump and fan.
- i have made a piston feeder according to generally available information, preliminary tests have been made successfully
- i don't want to buy a new controller for the time being, I would like to make a simple control based on a time relay, however I can't find anything at a low price ( up to 100 zł +-50 zł ) meeting the criteria :
1. works in a loop ( e.g. gives voltage for 3 sec every 200 sec )
2. pauses but does not reset the countdown during voltage loss ( voltage from the controller from the output to the blower )
3. I.e. I switch the controller on, it switches on the fan and feeder, the temperature reaches the preset one (the feeder is in a loop), the hysteresis is on (it blows for 3 seconds every 5 seconds), the relay pauses the countdown of feeding for the time of the fan stoppage) the temperature exceeds the preset + hysteresis, the fan switches off (pause on the feeder relay), the temperature drops, the fan switches on, on the relay the countdown is resumed, etc. I would like it to work taking into account the maintenance of the fan and the voltage.
I'd like this to work with the maintenance, currently the timer relay starts feeding coal after a voltage is applied and counts down again, but e.g. during maintenance when there is a blowdown it feeds coal unnecessarily, I'd like to avoid this or at least minimise these negative effects of simple control.
The assumption is that if all goes ok then I want to buy an IRYD RTZ PID prond.
If anyone knows of a ready-made solution or can suggest how to "get it right", please give me a hint.
Regards
