Siemens SINAMICS G150 Operating Instructions Manual page 448

Functions, Monitoring, and Protective Functions
9.2 Drive Functions
Commissioning
Speeds for making measurements as a function of the maximum speed p1082 are pre-
assigned in p382x when commissioning the drive system for the first time. These can be
appropriately changed corresponding to the actual requirements.
The automatic friction characteristic plot can be activated using p3845. The characteristic is
then plotted the next time that it is enabled.
The following settings are possible:
• p3845 = 0
• p3845 = 1
• p3845 = 2
• p3845 = 3
p3847 (friction characteristic plot warm-up period) can be used to set a time for the drive to
warm up to the specified operating temperature. During this time, the drive is brought up to
and kept at the greatest speed set for plotting the friction characteristic, so that the drive
warms up to the operating temperature. Then measurement is started with the highest
speed.
When the friction characteristic is plotted, the drive can cause the motor to move. As a
result, the motor may reach maximum speed.
When commissioning the drive, the EMERGENCY STOP functions must function perfectly.
To protect the machines and personnel, the relevant safety regulations must be observed.
Function diagram
FP 7010
446
Friction characteristic plot de-activated
Friction characteristic plot activated, all directions
The friction characteristic is plotted in both directions of rotation. The
result of the positive and negative measurement is averaged and entered
into p383x.
Friction characteristic plot activated, positive direction
Friction characteristic plot activated, negative direction
DANGER
Friction characteristic curve
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A