gefran TPD32-EV-CU series - Page 195

—————— Instruction manual ——————
195
Example 1 of the calculation of the dimension factor
Thedrivespeedisgiveninm/s.Theconversionratiois0.01mperrevolutionofthemotor(Note:facevalue
factor=1).
Thedimensionfactoriscalculatedfrom
Dimension factor =
output (rpm)
input (here: m/s)
for01
0.01mcorrespondsto1revolutionofthemotorshaft
0.01m/mincorrespondsto1/min
0.01m/60scorrespondsto1/min
Dimension factor =
for02
1
=
min
60 s
0.01 m
6000
1
s
m
1
min
Whencalculatingthedimensionfactor,unitsshouldnotbeshortened(1minisnotshortenedas60s)
Dim factor num 6000
Dim factor den1
Dim factor text m/s
Example 2 of the calculation of the dimension factor
Thereferencevaluesforabottlingplantaregiveninbottlesperminute.Onerevolutionofthedrivecorresponds
tothellingof0.75bottles.Thiscorrespondstoadimensionfactorof4/3.Thespeedlimitationandtheramp
functionarealsogiveninbottlesperminute
Dimension factor =
for03
output (rpm)
input (here: bottles/min)
3/4ofabottlecorrespondsto1revolutionofthemotorshaft
Dimension factor =
for04
1
=
min
4 min
3 bottles
4
3
min
bottles
1
min
Unitsshouldnotbeshortenedwhencalculatingthedimensionfactor.
Dim factor num 4
Dim factor den3
Dim factor text F/min (bottlesperminute)
Example of the face value factor
Normallythereferencevaluehasaresolutionof1rpm.Inordertoexploittheavailableresolution,theface
valuefactorisused.
Themotorspeedrangerequiredis,forexample,0...1500rpm.Amoreaccurateresolution(i.e.1/4revolution)
canbeobtainedbysettinghtefacevaluefactorto1/4.
Thevalue4000isentered,forexample,inordertoselect1000rpmThisisthenmultipliedwiththefacevalue
factortogivethevalue1000rpm.
Face value num1
Face value den 4