Computer Drive Installation Instructions

ManualsBrandsSiemens ManualsComputer HardwareSIMODRIVE 611-D

12 Functional Descriptions 08.96

12.33.1 Introduction

Function generator

for FFT analysis

(speed controller)

Filter 1

Filter 2

611D:

Speed feedforward

control setpoint

Speed

setpoint filter

Speed

setpoint limitation

Speed

controller P gain

611D:

Weight compensation/

feedforward control torque

Torque setpoint

limitation

Torque setpoint

limitation

Speed controller

reset time

Integrator

feedback

Speed actual value

monitoring

torque setpoint

limitation = 0

Torque- to-cross-

current conversion

Current setpoint filter

Current setpoint limitation

MSD field control

FDD field setpoint =0

Ust

–

d Ust

–

q

T S R

I

d

I

q

Filter 4

Filter 3

Filter 2

Filter 1

iq

–

set

i

–

set

n

–

act

ENC

M

U

dq

U

RST

Function generator

for FFT analysis

(current controller)

Current control

loop

Speed control loop

611D:

Filters 1-4 in current

controller

n

–

set

&

Fig. 12-1 Overview of speed and current control loops

12–332

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SINUMERIK 840C (IA)