Lenze DDS Function library Drive Bedienungsanleitung PDF herunterladen (Seite 51)

Function library LenzeDrive.lib

Processing of phase−angle signals

2.4.4 Difference (L_PHDIFF)

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LenzeDrive.lib EN 1.7

2.4.4 Difference (L_PHDIFF)

This FB adds a phase−angle signal to the phase setpoint. A setpoint/actual value comparison is also

possible.

L _ P H D I F F

d n O u t _ p

d n S e t _ p

d n A d d _ p

b E n _ b

n I n _ v

b R e s e t _ b

I n t e r v a l T i m e

T A S K

Fig. 2−52 Difference (L_PHDIFF)

VariableName

DataType SignalType VariableType Note

dnSet_p Double−integer position VAR_INPUT Provision of a position setpoint

dnAdd_p Double−integer position VAR_INPUT Adaptive position value for an actual position

bEn_b Bool binary VAR_INPUT TRUE = Adaptive position value is added on.

nIn_v Integer velocity VAR_INPUT Provision of the actual speed for conversion/calculation

of the position value

bReset_b Bool binary VAR_INPUT TRUE = Actual phase−angle integrator is set to 0.

dnOut_p Double−integer position VAR_OUTPUT Signal is not limited.

Functional sequence

If bEn_b = TRUE :

1. The speed (rpm) signal at nIn_v is integrated by the phase−angle integrator.

2. The phase−angle signal at dnAdd_p is added to the integrated speed signal in each task cycle.

3. The result of the phase−angle integrator is subtracted from the phase−angle signal at dnSet_p

and then output at dnOut_p.

If bEn_b = FALSE

1. The speed (rpm) signal at nIn_v is integrated by the phase−angle integrator.

2. The result of the phase−angle integrator is subtracted from the phase−angle signal at dnSet_p

and then output at dnOut_p.

Note!

The phase−angle integrator derives a position from a speed.

 In nIn_v the speed can be defined (16384  15000 rpm ).

 (INT)65536 corresponds to one encoder turn.

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Lenze DDS Function library Drive Bedienungsanleitung Seite 51