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3 Operating the TED4015 Series
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Higher values will accelerate the settling to the set temperature. To high values will increase the
amplitude and number of overshoots or will even make the system instable. The I parameter is
set correctly when the actual temperature reaches the set temperature in a short time with a
minimum of overshoots.
The following table summarizes the effects of increasing the P, D and I share:
Effects of increasing parameters
Parameter
Rise Time
Overshoot
Settling Time
Steady-state Er-
ror
Proportional K
P
Decrease
Increase
Small Change
Decrease
Derivative K
D
Small Decrease
Decrease
Decrease
None
Integral K
I
Decrease
Increase
Increase
Eliminate