Operating instructions

MM420 Parameter List 04/02
MICROMASTER 420 Parameter List
24 6SE6400-5BA00-0BP0
P0294 Inverter I2t overload warning Min: 10.0
CStat: CUT Datatype: Float Unit: % Def: 95.0
P-Group: INVERTER Active: first confirm QuickComm. No Max: 100.0
Defines the [%] value at which alarm A0504 (inverter overtemperature) is generated.
Inverter I2t calculation is used to estimate a maximum tolerable period for inverter overload. The I2t
calculation value is deemed = 100 % when this maximum tolerable period is reached.
Dependency:
Motor overload factor (P0640) reduced to 100 % at this point.
Note:
P0294 = 100 % corresponds to stationary nominal load.
P0300 Select motor type Min: 1
CStat: C Datatype: U16 Unit: - Def: 1
P-Group: MOTOR Active: first confirm QuickComm. Yes Max: 2
Selects motor type.
This parameter is required during commissioning to select motor type and optimize inverter performance.
Most motors are asynchronous; if in doubt, use the formula below.
(rated motor frequency (P0310) * 60) / rated motor speed (P0311)
If the result is a whole number, the motor is synchronous.
Possible Settings:
1 Asynchronous motor
2 Synchronous motor
Dependency:
Changeable only when P0010 = 1 (quick commissioning).
If synchronous motor is selected, the following functions are not available:
P0308 Power factor
P0309 Motor efficiency
P0346 Magnetization time
P0347 Demagnetization time
P1335 Slip compensation
P1336 Slip limit
P0320 Motor magnetizing current
P0330 Rated motor slip
P0331 Rated magnetization current
P0332 Rated power factor
P0384 Rotor time constant
P1200, P1202, P1203 Flying start
P1230, P1232, P1233 DC braking
Level:
4
Level:
2