Lenze EVS9332xS Bedienungsanleitung PDF herunterladen (Seite 196)

Function library

Function blocks

3.2.48 Process controller (PCTRL1)

3−144

EDSVS9332S−EXT EN 2.0

3.2.48.2 Ramp function generator

The setpoint PCTRL−SET is led via a ramp function generator with linear characteristic. Thus,

setpoint step−changes at the input can be transformed into a ramp.

100 %

RFG−OUT

[%]

+ t

100%

w2 * w1

+ t

100%

w2 * w1

Fig. 3−130 Acceleration and deceleration times of the ramp function generator

The ramps can be adjusted separately for acceleration and deceleration.

– Acceleration time t

with C0332.

– Deceleration time t

with C0333.

l PCTRL−INACT = HIGH

– The ramp function generator is immediately set to zero.

3.2.48.3 Value range of the output signal

l The process controller operates in bipolar mode in the default setting.

– The output value is limited to ±100 %.

l The function can be set to unipolar mode under C0337.

– The output value is limited to 0 ... +100 %.

3.2.48.4 Evaluation of the output signal

l The output signal can be evaluated after the limitation block via PCTRL−INFLU.

– The process controller can be hidden or unhidden with this evaluation.

– The calcuation is done according to the following formula:

100 % (PCTRL−OUT) = 100 % * 100 % (PCTRL−INFLU).

3.2.48.5 Deactivation of the process controller

l PCTRL−INACT = HIGH deactivates the process controller

– PCTRL−OUT is set to zero.

– The I−component is set to zero.

– The ramp function generator is set to zero.

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Lenze EVS9332xS Bedienungsanleitung Seite 196