Siemens 440 User Manual
Page 55
Issue 01/06
Parameter Description
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
55
r0332[3]
Rated power factor
Min: -
Datatype: Float Unit:
-
Def:
-
P-Group: MOTOR
Max: -
Displays power factor for motor
Index:
r0332[0] : 1st. Drive data set (DDS)
r0332[1] : 2nd. Drive data set (DDS)
r0332[2] : 3rd. Drive data set (DDS)
Dependency:
Value is calculated internally if P0308 (rated motor cosPhi) set to 0; otherwise, value entered in P0308 is
displayed.
r0333[3]
Rated motor torque
Min: -
Datatype: Float Unit:
Nm
Def:
-
P-Group: MOTOR
Max: -
Displays rated motor torque.
Index:
r0333[0] : 1st. Drive data set (DDS)
r0333[1] : 2nd. Drive data set (DDS)
r0333[2] : 3rd. Drive data set (DDS)
Dependency:
Value is calculated from P0307 (rated motor power) and P0311 (rated motor speed).
2
60
[1/min]
P0311
1000
[kW]
P0307
[Nm]
r0333
⋅
⋅
=
π
P0335[3] Motor
cooling
Min: 0
CStat:
CT
Datatype: U16 Unit:
-
Def:
0
P-Group: MOTOR
Active: first confirm
QuickComm.: Yes Max: 3
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
2
Self-cooled and internal fan
3
Force-cooled and internal fan
Index:
P0335[0] : 1st. Drive data set (DDS)
P0335[1] : 2nd. Drive data set (DDS)
P0335[2] : 3rd. Drive data set (DDS)
Caution:
The following combination of parameter setting should not be combined:
-
P0610 = 1 and P0335 = 0 or 2 :
When P0335 = 0 or 2 the inverter cools the motor using a shaft mounted fan. If this is used in
conjunction with P0610 the cooling of the motor will be inefficient.
In essence, if the i2t calculation reduces the output frequency, then the shaft mounted fan will also reduce
its cooling effect, the motor will then eventually overheat and trip.
- Exception:
Applications with variable torque the reduction of max. current leeds automatically to a reduction of the
load / output current.
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.
Level
3
Level
3
Level
2