Suppression Bandwidths And Setpoint Limits - Siemens SINAMICS S120 Function Manual

2.2.7

Suppression bandwidths and setpoint limits

Description
In the range 0 U/min to setpoint speed, a drive train (e.g. motor, coupling, shaft,
machine) can have one or more points of resonance, which can result in vibrations.
The suppression bandwidths can be used to prevent operation in the resonance
frequency range.
The limit frequencies can be set via p1080[D] and p1082[D]. These limits can also
be changed during operation with connectors p1085[C] and p1088[C].
p1083[D]
Speed limiting min
p1080[D]
–1
p1086D]
Fig. 2-10
Function diagram overview (refer to the List Manual)
S 1550
S 3050
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
p1091[D]
Suppression
bandwidths
p1085[C]
p1083 (1083)
p1082[D]
y
Ï Ï Ï
y
x
Ï Ï
x
Ï
–1
p1088[C]
p1086 (1086)
Suppression bandwidths, setpoint limitation
Setpoint channel
Suppression bandwidth and speed limiting
Extended Setpoint Channel
Extended setpoint channel
...
p1094[D]
p1101[D]
Min
Speed limiting max
x
r1112
Max
Ramp-function generator
r1084
y
r1119
r1087
Motor control
2-57