2 encoder signal detection, 3 position setting, 2 encoder signal detection 2.2.3 position setting – Lenze E94AYFLF Digital frequency module User Manual

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Digital frequency extension module | Parameter setting & configuration

Digital frequency input

Parameter setting

EDS94AYFLF EN 3.2 - 10/2010

2.2.2

Encoder signal detection

From the encoder signals applied to digital frequency input X9 and the number of

increments set in

the speed is created in [rpm] and provided to the

application via the output DFIN_nActualSpeed_s of the system block

LS_DigitalFrequencyInput.
At the same time the detected speed is integrated to a 32-bit absolute position and

provided to the application via the output DFIN_dnActualPos_p of the system block

LS_DigitalFrequencyInput.

See also:

2.2.3

Position setting

The 32-bit absolute position output by the system block LS_DigitalFrequencyInput at the

output DFIN_dnActualPos_p can be set as follows to a certain position value:

1. Define the desired absolute position at the input DFIN_dnReferencePos_p in

[increments].

2. Set the input DFIN_bLoadReferencePos from FALSE to TRUE to accept the defined

position for the digital frequency input in the next cycle.



Note!

The speed is not affected by setting the position.
If the speed is integrated in the application, the integrator and the position

assume different values, i.e. they diverge. In case of further position changes, the

difference between the values remains the same.