Sign up

[Benoit]

Hello,

I have 3 questions regarding the J2 output on my SYL-2362

1.
I'm using the J2 to make a light to turn on when I reach the set temperature. Is there a difference between using outy to have J2 as on/off or alarm? I know J2 as on/off will use the SV and HY as reference and in alarm mode it will use AH2 and AL2... but except that?   

2.
I'm also looking to add a solenoid vavle... can I plugged it on J1 and controle the solenoid vavle with AH1 and AL1?

3.
Is there a way to make a modulating valve to be controlled by the SYL-2362?

PS: I'm using this for the controller on an evaporator for maple syrup production.

Thanks
have a nice day!

[Kkane]

Please see this post for auto draw-off system:

https://www.auberins.com/index.php?main_page=page&id=39

Here are your answers:

1. J2 relay can be used as main output relay. You can set output cycle time for it (parameter ot), also you can directly change its set temperature on the outside. You don't need to enter parameter settings to change them.

2. I recommend you to use J2 to drive solenoid, then J1 to drive your light.

3. If you have time proportional valve, you can use SYL-2381 controller with linear output. SYL-2362 can only control as on/off.

[Benoit]

Thanks for your help.

I need one last clarification.

If I use J2 as on/off to control the light, I will have to adjust sv instead of ah2 anf al2 which is easier to do. Do you recommend to use ot=20 secondes as it is recommended for the solenoid valve? I read the instruction again and again and I not sure to understand what the 20 seconds will have as effect on the light?!?

Sorry I'm new to this!

Thanks

[Kkane]

Yes, please set 20s as well.

If your are using relay output (J1/J2), it is recommended to set as 20s. If your are using SSR output to drive SSR, it is recommended to set as 2s.

[Benoit]

Once again, thanks for helping me out.

copy paste from the instruction:
'' Cycle rate (ot): it is time period that controller uses to calculate its output. if ot=2, and controller output is set to 10%, the heater will be on 0.2 second and off 1.8 seconds for every 2 seconds. smaller ot result in more precision control. For SSR output, ot is normally set at 2. for relay or contactor output, it shoul be set longer to prevent contacts from wearing out too soon.''

I'm not sure to understand what the 20s will do... is that mean that the light will go on only 2 secondes every 20 seconds??

Thanks

[Kkane]

If your cycle time is 20s, and if your current output is 10%, the output will be on for 20 * 10% = 2s, and output will be off for 20 * 90% = 18s.

If your cycle time is 20s, every 20s the controller will calculate the output percentage.

Hope this example can explain it clearly.

[Benoit]

perfectly clear!

thanks for your time