6
6.7
Analog outputs
6-552
Siemens AG 2005 All Rights Reserved
SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
Figs. 6-58 and 6-59 show, using the controller structures, where the
most important analog signals are taken from for the current and speed
controller or for the position controller.
Torque
setpoint
limiting
Proportional
gain K
P
Integral action
time T
N
Current
regulator
M
Red
analog
Speed
controller
Input signal
”Ramp–up time = 0”
Input signal
”open–loop torque–
controlled mode”
P1256:8
P1257:8
P1012.0
P1409
P1407
Current
regulator
–
I
q
I
d
–
M
set
analog
n
set
analog
Time constant
integrator feedback
P1421
P1421
1.0
< 1.0
P0607
P0612
= 0
= 1
n
set
from
PROFIBUS–DP
Ramp–up
encoder
4 current
setpoint
filters
= 0
= 1
ENC
I
d
I
q
Induction motor/1FE1 motor flux sensing and closed–loop flux control
Synchronous motor without 1FE1 motor
I
q set
= M
set
/K
T
(P1113)
I
d set
= 0
I
d
set
Iq
set
Conversion,
torque to
quadrature–
axis current
n
act
V
q
V
d
U
V
W
M
3
∼
Signal No.
Signal name
2
Current actual value phase U
3
Current actual value phase V
4
Field–generating current actual value I
d
5
Torque–generating current actual value I
q
6
Current setpoint I
q
(limited after the filter)
7
Current setpoint I
q
(in front of the filter)
8
Speed actual value motor (SRM, ARM), velocity actual value, motor (SLM)
9
Speed setpoint (SRM, ARM), velocity setpoint (SLM)
11
Torque setpoint (SRM, ARM), force setpoint (SLM)
17
Quadrature–axis voltage V
q
18
Direct–axis voltage V
d
9
Speed
setpoint filter
Speed
setpoint
limiting
÷
2
3
4
17
5
8
6
11
7
18
Fig. 6-58 Analog signals for the current and speed control loop
Where are the
signals
taken from?
6 Description of the Functions
01.99
04.99
