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Siemens SIPART DR21 User Manual

Siemens SIPART DR21
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6 Commissioning
6.6 Manual setting of the control parameters
Manual
190
SIPART DR21
C73000-B7476-C143-08
D PI-controller (control signal P = Low)
- Set the desired setpoint and set the control difference to zero in manual operation.
- Switch to automatic operation.
- Increase Kp slowly until the control loop tends to oscillate due to slight setpoint changes.
- Reduce Kp slightly until the oscillations disappear.
- Reduce Tn until the control loop tends to oscillate again.
- Increase Tn slightly until the tendency to oscillate disappears.
D PID-controller (control signal P = Low)
- Set the desired setpoint and set the control difference to zero in manual operation.
- Switch to automatic operation.
- Increase Kp slowly until the control loop tends to oscillate due to slight setpoint changes.
- Switch Tv from oFF to 1 s.
- Increase Tv until the oscillations disappear.
- Increase Kp slowly again until the oscillations reappear.
- Repeat the setting according to the previous two steps until the oscillations cannot be
eliminated again.
- Reduce Tv and Kp slightly until the oscillations stop.
- Reduce Tn until the control loop tends to oscillate again.
- Increase Tn slightly until the tendency to oscillate disappears

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Siemens SIPART DR21 Specifications

General IconGeneral
BrandSiemens
ModelSIPART DR21
CategoryController
LanguageEnglish

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