Reference Parameters/Scaling - Siemens SINAMICS S120 Function Manual

8.2

Reference parameters/scaling

Function description
Reference values, corresponding to 100%, are required to display units as percentages. These
reference values are entered in parameters p2000 to p2007. They are computed during the
calculation using p0340 = 1. After calculation in the drive, these parameters are automatically
protected via p0573 = 1 from being overwritten in a new calculation (p0340). This eliminates the
need to adjust the references values in a PROFIdrive controller whenever a new calculation of
the reference parameters via p0340 takes place.
Parameters p0514 to p0519 are provided for scaling purposes when interconnecting BICO
parameters (also see SINAMICS S120/S150 List Manual).
Figure 8-1 Conversion with reference variables
Note
If a referenced form is selected and the reference parameters (e.g. p2000) are changed
retrospectively, the referenced values of some of the control parameters are also adjusted to
ensure that the control behavior is unaffected.
Behavior in the case of offline parameter assignment.
After the offline drive configuration, the reference parameters are preset.
Note
If the reference values (p2000 to p2007) are changed offline, it can lead to limit violations of the
parameter values, which cause alarms or faults when loading to the drive unit.
Scaling for the vector drive object
Table 8-1
Size
Reference speed
Reference voltage
Reference current
Reference torque
Reference power
Drive functions
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Scaling for the vector drive object
Scaling parameter
100% = p2000
100% = p2001
100% = p2002
100% = p2003
100% = r2004
8.2 Reference parameters/scaling
Default when commissioning for the first time
p2000 = Maximum speed (p1082)
p2001 = 1000 V
p2002 = Current limit (p0640)
p2003 = 2 · rated motor torque (r0333)
r2004 = p2003 · p2000 · 2π / 60
Basic functions
309