Monitoring functions and protective functions
9.5 Thermal motor protection
Drive functions
644 Function Manual, 11/2017, 6SL3097-4AB00-0BP5
The motor temperatures are calculated based on the motor measured values. The calculated
temperatures are indicated in the parameters:
● r0034 thermal motor load
● p0613 motor temperature model ambient temperature
● r0631 Motor temperature model stator iron temperature
● r0632 Motor temperature model stator winding temperature
● r0633 Motor temperature model rotor temperature
Table 9- 2 Important settings
p5390 Alarm threshold
If the model motor temperature (r0632) exceeds the alarm threshold, alarm A07012
"Drive: Motor temperature model 1/3 overtemperature" is output
p5391 Fault threshold
If the model motor temperature (r0632) exceeds the fault threshold, fault F07011
"Drive: Motor overtemperature" is output.
p5350 Boost factor
Defines the boost factor for the copper losses at standstill.
Function diagrams and parameters
Messages (see SINAMICS S120/S150 List Manual)
F07011
Drive: Motor overtemperature
A07012
Drive: Motor temperature model 1/3 overtemperature
Function diagrams (see SINAMICS S120/S150 List Manual)
8016
Signals and monitoring functions
- thermal monitoring motor, Mot_temp
8017
Signals and monitoring functions
- motor temperature model - 1 (I2t)
8018
Signals and monitoring functions
- motor temperature model 2
8019
ing functions - motor temperature model 3