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Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 165

7Applications

7.15 Synchronous drive of squeegees

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7.15.2 Data for the entry

7.15.2.1 Roll diameter

7.15.2.2 Tensile force, infeed

7.15.2.3 Tensile force, outfeed

7.15.2.4 Roll contact force

Symbol Description

d Outside diameter of drive roll

Symbol Description

The tensile force on the material belt at the input side of the rolls, i.e. where the material ap-

proaches the rolls.

• Only positive values possible.

• The difference in force between the input side and the output side has to be provided by the

drive.

Possible messages

Difference of the tensile forces F

- F

out

> limit value ( 441)

Symbol Description

out

The tensile force on the material belt at the output side of the rolls, i.e. where the material

moves away from the rolls.

• Only positive values possible.

• The difference in force between the input side and the output side has to be provided by the

drive.

Possible messages

Difference of the tensile forces F

- F

out

> limit value ( 441)

Symbol Description

F Pinch pressure of rollers

• The power transmission between the drive roll and the web is effected by friction. It depends

on the friction coefficient and the contact pressure of the rolls.

• The force that is applied is created by the weight of the upper roller, by spring pressure, hy-

draulic or pneumatic pressure, or by a combination of these.

Possible messages

Difference of the tensile forces F

- F

out

> limit value ( 441)

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