Parker 590 series - Page 113

Programming Your Application 6-23
590 Series DC Digital Converter
Functional Description
|X|
|Y|
REEL SPEED [437]
X<Z
MIN SPEED [426]
RESET VALUE EXTERNAL RESET
MIN DIAMETER [425]
DIAMETER [427]
RAMP RATE [453]
LINE SPEED [424]
[462] [463]
[430]
[428]
[429]
aX/Y
x
z
Hold
DIAMETER CALC.
Core Diameter (d)
Line Speed (S)
Reel Diameter
ω
r
(D)
Circumference = πD or Line Speed (S) = Reel Speed (ωr) x D
Thus D = S
ωr
i.e. D ∝ Line Speed (S)
Reel Speed (ωr )
Therefore with the web intact we can calculate the diameter from the two speeds