ITT Industries PumpSmart PS200, Руководство по конфигурации и эксплуатации

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PS200 Configuration & Operation Guide
OPTIONS & FEATURES
Page 101
Setpoint
Proc
e
ss Var
iable
Time
Under-Compensated system : In this case, the drive is under-compensating to the error in the setpoint. The
integration time in this case is too long.
DERIVATIVE RESPONSE
NOTE - The Derivative function can be found in the Advanced Parameter section accessible by the 564 User Pass
Code.
Derivative action completes the PID controller capability and is useful in systems where there is a sudden change in
process variable. Derivative action will respond to a sudden change in process variable with a response similar to a
high proportional gain but after this initial response behaves similar to a PI controller. Derivative action will
respond to a sudden change in process variable faster then by just using PI control. In most pump applications PI
control will be sufficient. However, PID control may be very useful in some level and temperature control
applications.
Parameter Name Value/Range Notes
13.05 D - TIME 0-10 sec
0 [default]
Defines the derivation time of the PID
controller.
13.06 PID DERIV FILTER 0.4-10 sec
1 [default]
Defines the time constant of the filter
used to smooth the derivative
component of the process PID controller