Acceleration Boost - Siemens MICROMASTER 440 Parameter Manual

Issue 01/06
Dependency:
Continous boost P1310 has no effect during vector operation because the inverter calculates continously
the optimum operating conditions.
Note:
- Increasing the boost levels increases motor heating (especially at standstill).
- The boost values are combined when continuous boost (P1310) used in conjunction with other boost
parameters (acceleration boost P1311 and starting boost P1312).
- However priorities are allocated to these parameters as follows:
P1310 > P1311 > P1312
- The total boost is limited by following equation:
∑
≤
V
Boost
- Setting in P0640 (motor overload factor [%]) limits the boost:
∑
V
Boost
⋅
P0305 P0350
P1311[3]

Acceleration boost

CStat: CUT
P-Group: CONTROL
P1311 will only produce boost during ramping, and is therefore useful for additional torque during
acceleration and deceleration. Contrary to P1312, that is only active when an ON command is given, p1311
is active after each acceleration resp. deceleration. The boost is active, if P1311 > 0 resp. if the conditiones
given below are fulfilled.
Applies boost in [%] relative to P0305 (rated motor current) following a positive setpoint change and drops
back out once the setpoint is reached. It is activated when the setpoint changes and deactivated when the
setpoint is reached.
V
Vmax
Vn
(P0304)
actual V
V
AccBoost ,100
V
AccBoost ,50
0
f
Boost,end
(P1316)
where voltage values are given
=
V
AccBoost , 100
=
V
AccBoost,5 0
Index:
P1311[0] : 1st. Drive data set (DDS)
P1311[1] : 2nd. Drive data set (DDS)
P1311[2] : 3rd. Drive data set (DDS)
Dependency:
Acceleration boost P1311 has no effect during vector operation.
Note:
See parameter P1310
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
⋅ ⋅ = ⋅ ⋅
3 R I 3 P0305 P0350
s Mot
P0640
≤
100
Datatype: Float
Active: Immediately
Boost voltage
Boost
fn
(P0310)
P1311
⋅ ⋅
P 0305 P 0350
100
V
AccBoost,1 00
2
Parameter Description
Min:
Unit: % Def:
QuickComm.: No Max:
Validity range
ON
OFF
f
P1311 active
1
0
f
fmax
(P1082)
Level
0.0
2
0.0
250.0
t
t
t
157