ABB DCS550 - Adaptspc Kp (P-Part Adaption); PID Control (PID Controller)

135
Winder
3ADW000379R0501 DCS550 Manual e e
Use the diameter calculation to calculate the actual diameter from the line speed and
the actual motor speed. It is possible to force or preset the diameter of the coil. To
avoid steps the calculated diameter is passed through a ramp genera
tor. The
minimum diameter is used as the lower limit.
Commissioning hints:
−
The diameter calculation works with relative diameters in percent of the maximum
allowed diameter, so the physical values must be converted.
%100*)05.62(
max
min
D
D
nDiameterMi =
%100*)03.62(
max
D
D
lueDiameterVa
act
=
PID Control (PID controller)
The PID controller is used as tension controller for direct tension control.
The actual
tension position is connected to analog input 3 via
PID Act1 (40.01). The tension
reference
comes from the output of winder block TensionRef and is connected to
PIDRef1
(40.13). The PID controller output PID Out (3.09) is connected to winder
block TensToTorq.
In case of dancer control, the PID controller is configured as position controller.
The
actual dancer position is connected to analog input 3 via
PID Act1 (40.01). The
dancer reference is to be written into
Data1 (19.01) and connected to PIDRef1
(40.13)
. The PID controller output PID Out (3.09) is connected to SpeedCorr (23.04).
AdaptSPC Kp (p-part adaption)
Use the p
-part adaption to adapt the speed controller p-part according to actual
diameter of the coil. It is variabl
e between minimum diameter and maximum
diameter. Use the smallest p
-part with minimum diameter. With maximum diameter,
send the largest p
-part to the speed controller.
Commissioning hints:
−
Active, if WriteToSpeedChain [WCW Bit 2] == TRUE.
The falling edge from WCW Bit 2 sets the output to AdaptKpMin (62.11).
−
AdaptKpMin (62.11) has to be determined by manual tuning of the speed
controller. Only the spool is on the winder and set WinderMacro (61.01) =
NotUsed.
−
AdaptKpMax (62.12) has to be determined by manual tuning of the speed
controller. The largest coil (maximum diameter and maximum width) has to be on
the winder and set WinderMacro (61.01) = NotUsed.
D
max
= max. diameter [m]
D
max
=
100 % == 10,000
D
act
=
actual diameter [m]
D
min
=
core diameter [m]
D
max
D
act
D
min
diameter_a.dsf