Minimum Speed - Siemens SINAMICS G220 Operating Instructions Manual

14.9.8

Minimum speed

Overview
An example of this is a conventional pump application in which a specific delivery rate must be
maintained. Accordingly, the motor speed must not fall below the minimum speed.
Figure 14-62
Description of function
The minimum speed prevents the continuous operation of the motor at speeds less than the
minimum speed.
Figure 14-63
Speeds whose absolute value is less than the minimum speed are only possible when the
motor is accelerating or braking.
Parameters
The following list contains the parameters of the "Minimum speed" function.
Number
c1051[0...n]
c1052[0...n]
p1080[0...n]
p1083[0...n]
r1084
c1085[0...n]
c1106[0...n]
r1112
r1114
r1119
r1170
SINAMICS G220 converter
Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB
Setpoint processing in the converter
Minimum speed in the extended setpoint channel
Name
Speed limit RFG positive direction of rotation
Speed limit RFG negative direction of rotation
Minimum speed
Speed limit in positive direction of rotation
Positive speed limit effective
Speed limit in positive direction of rotation
Minimum speed
Speed setpoint after minimum limiting
Setpoint after the direction limiting
Ramp-function generator setpoint at the input
Speed controller setpoint sum
Functions
14.9 Setpoint channel
Unit
[rpm]
[rpm]
[rpm]
[rpm]
[rpm]
[rpm]
[rpm]
451