Operating instructions
04/02     1 Parameters
MICROMASTER 420 Parameter List
6SE6400-5BA00-0BP0
27
P0320 Motor magnetizing current
Min: 0.0
CStat: CT Datatype: Float Unit: % Def: 0.0
P-Group: MOTOR Active: Immediately QuickComm. Yes Max: 99.0
Defines motor magnetization current in [%] relative to P0305 (rated motor current).
Dependency:
P0320 = 0:
Setting 0 causes calculation by P0340 = 1 (data entered from rating plate) or by P3900 = 1 - 3 (end of quick
commissioning). The calculated value is displayed in parameter r0331.
r0330 Rated motor slip Min: -
Datatype: Float Unit: % Def: -
P-Group: MOTOR Max: -
Displays nominal motor slip in [%] relative to P0310 (rated motor frequency) and P0311 (rated motor
speed).
% 100  
P0310
r0313  
60
P0311
  P0310
  [%] r0330 ⋅
⋅−
=
r0331 Rated magnetization current Min: -
Datatype: Float Unit: A Def: -
P-Group: MOTOR Max: -
Displays calculated magnetizing current of motor in [A].
r0332 Rated power factor Min: -
Datatype: Float Unit: - Def: -
P-Group: MOTOR Max: -
Displays power factor for motor
Dependency:
Value is calculated internally if P0308 (rated motor cosPhi) set to 0; otherwise, value entered in P0308 is
displayed.
P0335 Motor cooling Min: 0
CStat: CT Datatype: U16 Unit: - Def: 0
P-Group: MOTOR Active: first confirm QuickComm. Yes Max: 1
Selects motor cooling system used.
Possible Settings:
0   Self-cooled: Using shaft mounted fan attached to motor
1   Force-cooled: Using separately powered cooling fan
Notice:
Motors of series 1LA1 and 1LA8 have an internal fan. This internal motor fan must not be confused with the
fan at the end of the motor shaft.
P0340 Calculation of motor parameters Min: 0
CStat: CT Datatype: U16 Unit: - Def: 0
P-Group: MOTOR Active: first confirm QuickComm. No Max: 1
Calculates various motor parameters, including:
P0344 Motor weight
P0346 Magnetization time
P0347 Demagnetization time
P0350 Stator resistance
P0611 Motor I2t time constant
P1253 Vdc-controller output limitation
P1316 Boost end frequency
P2000 Reference frequency
P2002 Reference current
Possible Settings:
0   No calculation
1   Complete parameterization
Note:
This parameter is required during commissioning to optimize inverter performance.
P0344 Motor weight Min: 1.0
CStat: CUT Datatype: Float Unit: kg Def: 9.4
P-Group: MOTOR Active: Immediately QuickComm. No Max: 6500.0
Specifies motor weight [kg].
Note:
This value is used in the motor thermal model.
It is normally calculated automatically from P0340 (motor parameters) but can also be entered manually.
Default value is dependant on inverter rated power.
Level:
3
Level:
3
Level:
3
Level:
3
Level:
2
Level:
2
Level:
3










