Function modules 7.8 Closed-loop position control

Note

The effective actual value resolution is obtained from the product of the encoder pulses (p0408) and the fine resolution (p0418) and a measuring gear that is possibly being used (p0402, p0432, p0433).

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Figure 7-8 Position actual value sensing with linear encoders

For linear encoders, the interrelationship between the physical quantity and the neutral length unit LU is configured using parameter p2503 (LU/10 mm).

Example:

Linear encoder, 10 mm should have a resolution of 1 µm (i.e. 1 LU = 1 µm). -> p2503 = 10000

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Figure 7-9 Actual position value preparation

A correction can be made using connector input p2513 (correction value, position actual value conditioning) and a positive edge at binector input p2512 (activates the correction value). When the "basic positioning" function module is activated, p2513 is automatically

Drive Functions

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Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

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