Issue 10/06

6 Commissioning

6.4.18.9PID controller

P2200 =...

r2251 =...

P2253 =...

P2254 =...

P2257 =...

P2258 =...

P2264 =...

P2267 =...

P2268 =...

r2273 =...

P2274 =...

P2280 =...

P2285 =...

P2291 =...

P2292 =...

BI: Enable PID controller

0.0

PID mode Allows user to enable/disable the PID controller. Setting to 1 enables the PID controller. Setting 1 automatically disables normal ramp times set in P1120 and P1121 and the normal frequency setpoints.

PID mode

0

Configuration of PID controller.

 

0

PID as setpoint

 

1

PID as trim

 

CI: PID setpoint

0.0

Defines setpoint source for PID setpoint input.

 

 

 

CI: PID trim source

0.0

Selects trim source for PID setpoint. This signal is multiplied by the trim gain and added to the PID setpoint.

Ramp-up time for PID setpoint

1.00 s

Sets the ramp-up time for the PID setpoint.

 

Ramp-down time for PID setpoint

1.00 s

Sets ramp-down time for PID setpoint.

 

 

 

CI: PID feedback

755.0

Selects the source of the PID feedback signal.

 

Max. value for PID feedback

100.00 %

Sets the upper limit for the value of the feedback signal in [%]..

 

 

 

Min. value for PID feedback

0.00 %

Sets lower limit for value of feedback signal in [%]..

 

CO: PID error

Displays PID error (difference) signal between setpoint and feedback signals in [%].

PID derivative time

0.000

Sets PID derivative time.

 

P2274 = 0:

 

The derivative term does not have any effect (it applies a gain of 1).

 

 

 

PID proportional gain

3.000

Allows user to set proportional gain for PID controller.

 

 

 

PID integral time

0.000 s

Sets integral time constant for PID controller.

 

 

 

PID output upper limit

100.00 %

Sets upper limit for PID controller output in [%].

 

 

 

PID output lower limit

0.00 %

Sets lower limit for the PID controller output in [%].

 

MICROMASTER 440

63

Operating Instructions (Compact)

Page 63
Image 63
Siemens 440 operating instructions PID controller