Siemens CU240S DP-F Parameter Manual

Parameters
List of Parameters
1-158
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
Description: Defines boost level in [%] relative to P0305 (rated motor current) applicable to both linear and quadratic V/f curves.
At low output frequencies the output voltage is low to keep the flux level constant. However, the output voltage may
be too low for the following:
• magnetisation the asynchronous motor
• hold the load
• overcome losses in the system.
The inverter output voltage can be increased via P1310 for the compensation of losses, hold loads at 0 Hz or main-
tain the magnetization.
The magnitude of the boost in Volt at a frequency of zero is defined as follows:
Dependency: Continous boost P1310 has no effect during vector operation.
Note: Increasing the boost levels increases motor heating (especially at standstill).
Setting in P0640 (motor overload factor [%]) limits the boost:
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 fol-
lows:
P1310 > P1311 > P1312
The total boost is limited by following equation:
Description: Applies boost in [%] relative to P0305 (rated motor current) following a positive setpoint change and drops back out
once the setpoint is reached.
P1311 will only produce boost during ramping, and is therefore useful for additional torque during acceleration and
deceleration.
As opposed to parameter P1312, which is only active on the first acceleration issued after the ON command,
parameter P1311 is always effect during an acceleration and deceleration when issued.
The magnitude of the boost in Volt at a frequency of zero is defined as follows:
Dependency: Acceleration boost P1311 has no effect during vector operation.
Note: See parameter P1310.
p1310[0...2] Continuous boost / Continuous boost
Access level: 2 P-Group: Closed-loop control Data type: Floating Point
Quick comm. NO Active: YES Data set: DDS
Can be changed: U, T
Min Max Factory setting
0.0 [%] 250.0 [%] 50.0 [%]
100
p1310
0350p0305p
V
100,ConBoost
⋅⋅=
∑
100
P0640
P0350 P0305
V
Boost
≤
⋅
∑
p0350 p0305 3 IR3V
MotsBoost
⋅⋅=⋅⋅≤
p1311[0...2] Acceleration boost / Acceleration boost
Access level: 2 P-Group: Closed-loop control Data type: Floating Point
Quick comm. NO Active: YES Data set: DDS
Can be changed: U, T
Min Max Factory setting
0.0 [%] 250.0 [%] 0.0 [%]
100
p1311
0350P0305p
V
100,AccBoost
⋅⋅=

Siemens CU240S DP-F Specifications

General

Brand	Siemens
Model	CU240S DP-F
Category	Control Unit
Language	English