PID contol, I appreciate the most?

Hello, I'm trying to set my PID system for different temperature values. I am using 2 power supplies and a monitor of temperature for the temperature control, but in Lakeshore 330 manual, I saw a practical method as follows: now my question is what should be my maximum I appreciate to be able to proceed at the time where I use the PID Labviews function and not using Lakeshore 330?

3.3.5.1 control Gain (proportional)
Register a gain (proportional) value from 000 to 999. To enter a gain value, press the p key. The below command
display window shows the current setting of the P (the default is 50) with flashing of the units place. Use the digital
keypad to enter a new setting. Press ENTER to accept the new setting of proportional or Escape to return to the
normal display and keep the previous setting.
Determine experimentally good gain, follow these steps. Manual Autotune, then cut
Reset (I) and (D) levels. Enter a nominal gain of 50. Check that the radiator turns; If not, increase the
gain setting until the heater turns on, then let the system stabilize. It stabilizes at a certain point below the set value
(usually 2-3 K below). Increase the gain by a factor of two until the temperature of the system starts to oscillate.
Adjust the gain for small sustained oscillations. Measure the period of these oscillations to determine the
a proper setting for resets. Reduce the gain by a factor of two or three, until the temperature stabilizes again. Be
ensure to allow time for each parameter for the system stabilizes (if she will). Some systems and cryogenic detectors
with a low sensitivity require the maximum gain.
3.3.5.2 parameter Reset (integral)
Adjusts the time constant of (full) reset reset in the control function. Reset the time in seconds = (999/value
Entered). For example, if the Reset setting is 20 seconds, the reset time is about 50 (999/20 = 50). Enter a
value between 1 and 999. Reset to zero makes the proportional controller only. To enter a reset value, press the I
key. Lower command window display shows the current I parameter (the default is 20) with units in place
flashing. Use the numeric keypad to enter a new setting. Press ENTER to accept the new setting or escape
return to the normal display and keep the previous setting.


Tags: NI Software

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