Siemens 440 - Manual (Page 159)

Issue 01/06 Parameter Description
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
159
P1316[3] Boost end frequency Min: 0.0
CStat: CUT Datatype: Float Unit: % Def: 20.0
P-Group: CONTROL Active: Immediately QuickComm.: No Max: 100.0
Defines point at which programmed boost reaches 50 % of its value. This value is expressed in [%] relative
to P0310 (rated motor frequency).
The default frequency is defined as follows:
) 3
P
153
( 2 = f
motor
min Boost
+ ⋅
Index:
P1316[0] : 1st. Drive data set (DDS)
P1316[1] : 2nd. Drive data set (DDS)
P1316[2] : 3rd. Drive data set (DDS)
Note:
- The expert user may change this value to alter the shape of the curve, e.g. to increase torque at a
particular frequency.
- Default value is depending on inverter type and its rating data.
Details:
See diagram in P1310 (continuous boost).
P1320[3] Programmable V/f freq. coord. 1 Min: 0.00
CStat: CT Datatype: Float Unit: Hz Def: 0.00
P-Group: CONTROL Active: Immediately QuickComm.: No Max: 650.00
Sets V/f coordinates (P1320/1321 to P1324/1325) to define V/f characteristic.
V
P1325
f1
P1320
f
max
P1082
V
max
r0071
V
n
P0304
P1323
P1321
P1310
f0
0 Hz
f2
P1322
f3
P1324
f
n
P0310
f
] P0304[V
100[%]
r0395[%]
100[%]
P1310[%]
P1310[V] ⋅ ⋅ =
V
max
= f(V
dc
, M
max
)
Index:
P1320[0] : 1st. Drive data set (DDS)
P1320[1] : 2nd. Drive data set (DDS)
P1320[2] : 3rd. Drive data set (DDS)
Example:
This parameter can be used to provide correct torque at correct frequency and is useful when used with
synchronous motors.
Dependency:
To set parameter, select P1300 = 3 (V/f with programmable characteristic).
Note:
Linear interpolation will be applied between the individual data points.
V/f with programmable characteristic (P1300 = 3) has 3 programmable points. The two non-programmable
points are:
-
Continuous boost P1310 at zero 0 Hz
- Rated motor voltage P0304 at rated motor frequency P0310
The acceleration boost and starting boost defined in P1311 and P1312 are applied to V/f with
programmable characteristic.
Level
3
Level
3