ABB DCS550 - Page 240

240
Signal and parameter list
3ADW000379R0501 DCS550 Manual e e
Signal / Parameter name
min.
max.
def.
unit
i
n
vs
D *
*
*
min
60
π
=
D [m] diameter
v [m/s]
line speed
n [rpm]
motor speed
i
gear ratio (motor / load)
The diameter calculation is used to calculate the actual diameter from the actual 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
generator. The minimum diameter is used as t
he lower limit.
Commissioning hint:
−
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
=
62.01 DiaLineSpdIn (diameter calculation, line speed input)
Source (signal/parameter) for the line speed input of the diameter calculation. The format is
-xxyy, with: - =
negate input,
xx = group and yy = index.
Default setting of 202 equals
SpeedRef3 (2.02).
Int. Scaling: 1 == 1 Type: SI Volatile: N
-9999
9999
202
-
62.02 DiaMotorSpdIn (diameter calculation, motor speed input)
Source (signal/parameter) for the motor speed input of the diameter calculation. The format is
-xxyy, with: - =
negate input,
xx = group and yy = index.
Default setting of 104 equals
MotSpeed (1.04).
Int. Scaling: 1 == 1 Type: SI Volatile: N
-9999
9999
104
-
62.03 DiameterValue (diameter calculation, initial diameter value)
Initia
l diameter of the coil in percent of the maximum diameter. To be set by means of DiameterSetCmd
(62.04).
Int. Scaling: 100 == 1 % Type: I Volatile: N
1
100
45
%
v
rewind
v
unwind
n
D
v
rewind
v
unwind
n
D
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