08.96 12 Functional Descriptions
12.33.1 Introduction
Function generator
for FFT analysis
PT2/bandstop
MD 1500
.
.
.
MD 1521
MD 1504
Setup mode:
MD 1420
Speed setpoint filter
611D
2nd speed setpoint
filter with low-pass
and bandstop
611D:
Speed setpoint
feedforward control
Speed setpoint limitation
Speed
controller
P gain
Torque setpoint
monitoring
MD 1605
Torque setpoint limitation
Speed controller
reset time
Integrator feedback
MD 1421
Speed actual value monitoring
n
–
act > MD 1147
torque setpoint limitation = 0
n
–
act
Speed control loop
611D:
Weight compensation/
feedforward control torque
n
–
set
Torque- to-cross-
current conversion
Filter 4
iq
–
set
MD 1407
MD 1413
MD 1408
MD 1411
MD 1412
MD 1409
MD 1413
MD 1410
MD 1411
MD 1412
&
MD 1725
MD 1230
MD 1233
MD 1235
MD 1237
MD 1145
Setup mode
MD 1239
PT2:
MD 1208
MD 1209
Bandstop:
MD 1219
MD 1220
MD 1221
Filter 3
PT2:
MD 1206
MD 1207
Bandstop:
MD 1216
MD 1217
MD 1218
Filter 2
PT2:
MD 1204
MD 1205
Bandstop:
MD 1213
MD 1214
MD 1215
n
–
act < MD 1606
Alarm: 300608 axis %1,
drive %2
Speed controller output
limited
Current setpoint filter
MD 1200
MD 1201
611D:
Filters 1-4 in current
controller
Filter 4 3 2 1
3 2 1 0Bit
0:=Low-pass
1:=Bandstop
Fig. 12-2 Overview of speed control loop
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50
12–333
SINUMERIK 840C (IA)