Rocketmagnet
Member
I recently bought a Sestos D1S PID temperature controller, but I am finding it very difficult to get it to work as expected. I have poured over the manual, and even read the Auber manual to no avail.
I think my main problem is that the Control period seems to be much longer than I expect. These are the settings I have programmed into it:
If you press the SET button, yo can switch the display between showing the SV (set value) and the output level. It's currently showing 'A 50', which means 50% output duty. With a control period of 1, I would expect the output to be on for 0.5s, then off for 0.5s. However, what I'm seeing is the output is on for 35s, then off for 35s!
Is this what I should expect? Can someone verify this behaviour on their device?
Many thanks in advance.
Hugo
I think my main problem is that the Control period seems to be much longer than I expect. These are the settings I have programmed into it:
- dF 0.3 (Hysteresis)
- Ctrl 3 (PID mode)
- M50 0 (Integral)
- P 1000 (Proportional?)
- t 0 (Derivative?)
- Ctl 1 (Control Period: 1 second)
- oP1 0 (Output method: Time Duty)
- oPL 0 (Output minimum: 0%)
- oPH 50 (Output maximum: 50%)
- run 1 (Automatic)
If you press the SET button, yo can switch the display between showing the SV (set value) and the output level. It's currently showing 'A 50', which means 50% output duty. With a control period of 1, I would expect the output to be on for 0.5s, then off for 0.5s. However, what I'm seeing is the output is on for 35s, then off for 35s!
Is this what I should expect? Can someone verify this behaviour on their device?
Many thanks in advance.
Hugo