Operating instructions

04/02 1 Parameters
MICROMASTER 420 Parameter List
6SE6400-5BA00-0BP0
81
P1802 Modulator mode
Min: 0
CStat: CUT Datatype: U16 Unit: - Def: 0
P-Group: INVERTER Active: first confirm QuickComm. No Max: 3
Selects inverter modulator mode.
Possible Settings:
0 SVM/ASVM automatic mode
1 Asymmetric SVM
2 Space vector modulation
Notice:
Asymmetric space vector modulation (ASVM) produces lower switching losses than space vector
modulation (SVM), but may cause irregular rotation at very low speeds.
Space vector modulation (SVM) with over-modulation may produce current waveform distortion at high
output voltages.
Space vector modulation (SVM) without over-modulation will reduce maximum output voltage available to
motor.
P1803 Max. modulation Min: 20.0
CStat: CUT Datatype: Float Unit: % Def: 106.0
P-Group: INVERTER Active: Immediately QuickComm. No Max: 150.0
Sets maximum modulation index.
Note:
P1803 = 100 % : Limit for over-control (for ideal inverter without switching delay). For vector control the
modulation limit will be reduced automatically with 4 %.
P1820 Reverse output phase sequence Min: 0
CStat: CT Datatype: U16 Unit: - Def: 0
P-Group: INVERTER Active: first confirm QuickComm. No Max: 1
Changes direction of motor rotation without changing setpoint polarity.
Possible Settings:
0 OFF
1 ON
Dependency:
If positive and negative revolution is enabled, frequency setpoint is directly used.
If both positive and negative revolution are disabled, reference value is set to zero.
Details:
See P1000 (select frequency setpoint)
P1910 Select motor data identification Min: 0
CStat: CT Datatype: U16 Unit: - Def: 0
P-Group: MOTOR Active: first confirm QuickComm. Yes Max: 2
Performs a motor data identification.
Performs stator resistance measuring.
Possible Settings:
0 Disabled
1 Identification of Rs with parameter change
2 Identification of Rs without parameter change
Dependency:
No measurement if motor data incorrect.
P1910 = 1 : Calculated value for stator resistance (see P0350) is overwritten.
P1910 = 2 : Values already calculated are not overwritten.
Note:
Before selecting motor data identification, "Quick commissioning" has to be performed in advance.
Once enabled (P1910 = 1), A0541 generates a warning that the next ON command will initiate
measurement of motor parameters.
Notice:
When choosing the setting for measurement, observe the following:
1. "with parameter change"
means that the value is actually adopted as P0350 parameter setting and applied to the control as well as
being shown in the read-only parameters below.
2. "without parameter change"
means that the value is only displayed, i.e. shown for checking purposes in the read-only parameter r1912
(identified stator resistance). The value is not applied to the control.
Level:
3
Level:
4
Level:
2
Level:
2