Control Structure, Speed Setpoint (N-Set Mode) - Siemens SIMODRIVE POSMO A User Manual

02.99 05.03
3.3.2 Control structure, speed setpoint (n–set mode)
Description The structure of the current/speed controller in the "speed setpoint"
operator mode (n–set mode) is shown in the following diagram.
Setpoint
PROFIBUS–DP
PZD2
P8
P9
P23
P8 P25
Actual
value
PROFIBUS–DP
PZD2
Parameter
P8 Maximum speed
P9 Ramp–up time
P16 Maximum overcurrent
P17 P gain, n controller
P18 Integral action time, n controller
P20 Current setpoint smoothing
P21 Speed setpoint smoothing
P23 Jerk time constant
P25 Override, acceleration
P28 Maximum current
P54 P gain, n controller, standstill
Note:
Additional information on the parameters is provided in the parameter list.
––> Refer to Chapter 5.6.2
Fig. 3-10 Closed–loop control structure, "speed setpoint" mode for SIMODRIVE POSMO A
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SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
S S
Setpoint P880 P3
4096
Closed–loop
speed controlled
2
n
set
–
n
set
P21 P17
P54
5
S
nact 4096
S
P880 P3
Measuring signals
1
2
3
4
5
Note:
These signals can be output via the analog
measuring outputs.
––> Refer to Chapter 6.3
3 Commissioning
3.3 Commissioning an axis
Speed
controller
Current
regulator
3 4
–
i
set
P18 P20
1
P16 P28
Current actual value
Speed setpoint
Current setpoint from the speed controller
Current setpoint smoothed
Speed actual value
u
i
act
M
n
act
3-93
3