Lenze E94AYFLF Digital frequency module Manual de usuario descargar pdf (Pagina 24)

Digital frequency extension module | Parameter setting & configuration

Digital frequency output

Parameter setting

24 L EDS94AYFLF EN 3.2 - 10/2010

3.2.2 Number of increments and zero pulse offset

The number of increments set in C13051

/ C14051 defines e.g. the number of increment to

be output before a zero pulse is created.

 Each zero pulse defines a covered "revolution" of the rotary transducer simulated by the

digital frequency output.

 Within such a "revolution" (in the value range 0 ... 65535 increments) the zero pulse can

be shifted by setting a zero pulse offset in C13052

/ C14052.

A connection between absolute position and "revolution" is defined by setting the position,

as described in the following chapter "Position setting

". The position of a zero pulse within

a "revolution" remains unchanged.

Example - signal characteristic:

[3-2] Example: Signal characteristic with the zero pulse offset set to 39321 increments

6 Output of the encoder angle

• The angle of rotation in [increments] derived from the encoder input is output as a frequency

signal after being evaluated with the set number of increments (C13051

/ C14051).

• The output signal is integrated to a position value via a counter and made available to the

application via the output DFOUT_dnActualPos_p of the system block

LS_DigitalFrequencyOutput.

• It is irrelevant for the output whether the encoder input is used as a load encoder, motor encoder,

or not used at all for the motor control.

7 Output of a speed signal of the application

• The speed signal in [rpm] defined via the input DFOUT_dnSpeedSet_s of the system block

LS_DigitalFrequencyOutput is integrated and output as a frequency signal after being evaluated

with the set number of increments (C13051

/ C14051).

• The output signal is integrated to a position value via a counter and made available to the

application via the output DFOUT_dnActualPos_p of the system block

LS_DigitalFrequencyOutput.

Selection Info

n Absolute position (DFOUT_dnActualPos_p, also takes into account each overflow of the encoder position)

o Position difference (is determined by Position setting

)

p Encoder position (in the value range 0 ... 65535 increments)

q Zero pulse offset (adjustable in C13052

/ C14052)

r Zero pulses

39321

65535





[Inc]







DFOUT_dnActualPos_p

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 53 54

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Lenze E94AYFLF Digital frequency module Manual de usuario Pagina 24

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