Overtemperature Stator Winding; Overtemperature Rotor Winding; Co: Ambient Temperature; Co: Stator Iron Temperature - Siemens MICROMASTER 440 Parameter Manual

Issue 01/06
P0627[3]

Overtemperature stator winding

CStat: CUT
P-Group: MOTOR
Overtemperature of the stator winding.
Index:
P0627[0] : 1st. Drive data set (DDS)
P0627[1] : 2nd. Drive data set (DDS)
P0627[2] : 3rd. Drive data set (DDS)
Note:
Temperature rise:
The losses occurring in the motor are converted into heat (thermal energy). This is the reason that
permissible limit temperature rises are defined for windings and other mechanical parts and components of
the motors. The temperature rise of the motor is defined as the difference between the temperature of a
motor component (e.g. rotor winding) and the temperature of the cooling medium (e.g. ambient air
temperature) (EN 60034-1). The temperature rise determined by the motor manufacturer by making the
appropriate measurements is the difference between the temperature of the winding at the end of the
measurement and the temperature of the cooling medium.
ϑ = ϑ − ϑ
ü 2 K
The permissible temperature rises of the windings is classified in insulating classes. The insulating class
valid for the particular motor is specified on the motor rating plate.
The following points should be carefully observed:
- The temperature rises of the stator/rotor winding are only applicable for sinusoidal operation (basic
fundamental).
- The temperature of stator/rotor winding rises when the motor is fed with a sinusoidal voltage as well as
also losses (modulation losses, losses due to harmonics) caused as a result of drive converter
operation.
- The value may only be modified if the motor is in the cold condition (ambient temperature). The motor
identification run should be carried-out after the value has been changed.
P0628[3]

Overtemperature rotor winding

CStat: CUT
P-Group: MOTOR
Overtemperature of the rotor winding.
Index:
P0628[0] : 1st. Drive data set (DDS)
P0628[1] : 2nd. Drive data set (DDS)
P0628[2] : 3rd. Drive data set (DDS)
Note:
See parameter P0627
r0630[3]

CO: Ambient temperature

P-Group: MOTOR
Displays ambient temperature of motor mass model.
Index:
r0630[0] : 1st. Drive data set (DDS)
r0630[1] : 2nd. Drive data set (DDS)
r0630[2] : 3rd. Drive data set (DDS)
r0631[3]

CO: Stator iron temperature

P-Group: MOTOR
Displays iron temperature of motor mass model.
Index:
r0631[0] : 1st. Drive data set (DDS)
r0631[1] : 2nd. Drive data set (DDS)
r0631[2] : 3rd. Drive data set (DDS)
r0632[3] CO: Stator winding temperature
P-Group: MOTOR
Displays stator winding temperature of motor mass model.
Index:
r0632[0] : 1st. Drive data set (DDS)
r0632[1] : 2nd. Drive data set (DDS)
r0632[2] : 3rd. Drive data set (DDS)
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
Datatype: Float
Active: Immediately
ϑ
: Temperature rise
ü
ϑ
: Temperature at the end of the measurement
2
ϑ : Cooling-medium temperature
K
Datatype: Float
Active: Immediately
Datatype: Float
Datatype: Float
Datatype: Float
Parameter Description
Min: 20.0
Unit: °C Def: 80.0
QuickComm.: No Max: 200.0
Min: 20.0
Unit: °C Def: 100.0
QuickComm.: No Max: 200.0
Min: -
Unit: °C Def: -
Max: -
Min: -
Unit: °C Def: -
Max: -
Min: -
Unit: °C Def: -
Max: -
Level
4
Level
4
Level
4
Level
4
Level
4
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