Skip Frequency Bands And Minimum Speed - Siemens SINAMICS G120C Operating Instructions Manual

8.18.4

Skip frequency bands and minimum speed

Overview
The converter has a minimum speed and four skip frequency bands:
• The minimum speed prevents continuous motor operation at speeds less than the minimum
speed.
• Each skip frequency band prevents continuous motor operation within a specific speed
range.
Function description
Minimum speed
Speeds where the absolute value is less than the minimum speed are only possible when the
motor is accelerating or braking.
Skip frequency bands
Additional information on the skip frequency bands is provided in the function diagram.
Parameter
Table 8-51
Number
p1051[C]
p1052[C]
p1080[D]
p1083[D]
r1084
p1085[C]
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
Minimum speed
Name
CI: Speed limit of ramp-function generator, positive direction
of rotation
CI: Speed limit of ramp-function generator, negative direction
of rotation
Minimum speed
CO: Speed limit in positive direction of rotation
CO: Speed limit positive active
CI: Speed limit in positive direction of rotation
Advanced commissioning
8.18 Setpoint processing
Factory setting
9733
1086
0 rpm
210000 rpm
- rpm
1083
283