Operating instructions
MM420 Parameter List 04/02
MICROMASTER 420 Parameter List
78 6SE6400-5BA00-0BP0
P1322 Programmable V/f freq. coord. 2 Min: 0.00
CStat: CT Datatype: Float Unit: Hz Def: 0.00
P-Group: CONTROL Active: Immediately QuickComm. No Max: 650.00
See P1320 (programmable V/f freq. coord. 1).
P1323 Programmable V/f volt. coord. 2 Min: 0.0
CStat: CUT Datatype: Float Unit: V Def: 0.0
P-Group: CONTROL Active: Immediately QuickComm. No Max: 3000.0
See P1320 (programmable V/f freq. coord. 1).
P1324 Programmable V/f freq. coord. 3 Min: 0.00
CStat: CT Datatype: Float Unit: Hz Def: 0.00
P-Group: CONTROL Active: Immediately QuickComm. No Max: 650.00
See P1320 (programmable V/f freq. coord. 1).
P1325 Programmable V/f volt. coord. 3 Min: 0.0
CStat: CUT Datatype: Float Unit: V Def: 0.0
P-Group: CONTROL Active: Immediately QuickComm. No Max: 3000.0
See P1320 (programmable V/f freq. coord. 1).
P1333 Start frequency for FCC Min: 0.0
CStat: CUT Datatype: Float Unit: % Def: 10.0
P-Group: CONTROL Active: Immediately QuickComm. No Max: 100.0
Defines start frequency at which FCC (flux current control) is enabled as [%] of rated motor frequency
(P0310).
Notice:
If this value is too low, the system may become unstable.
P1335 Slip compensation Min: 0.0
CStat: CUT Datatype: Float Unit: % Def: 0.0
P-Group: CONTROL Active: Immediately QuickComm. No Max: 600.0
Dynamically adjusts output frequency of inverter so that motor speed is kept constant independent of motor
load.
Increasing the load from md1 to md2 (see diagram) will decrease the motor speed from f1 to f2, due to the
slip. The inverter can compensate for this by increasing the output frequency slightly as the load increases.
The inverter measures the current and increases the output frequency to compensate for the expected slip.
M
f
∆
f
f
2
f
1
M
2
M
1
Value:
P1335 = 0 % :
Slip compensation disabled.
P1335 = 50 % - 70 % :
Full slip compensation at cold motor (partial load).
P1335 = 100 % :
Full slip compensation at warm motor (full load).
Note:
Gain adjustment enables fine-tuning of the actual motor speed (see P1460 - gain speed control).
100% = standard setting for warm stator.
Level:
3
Level:
3
Level:
3
Level:
3
Level:
3
Level:
2