Siemens CU240S DP-F Parameter Manual

List of Parameters
Parameters
1-21
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
Description: Displays filtered [rms] voltage applied to motor. This value is available filtered (r0025) and unfiltered (r0072).
Description: Displays filtered DC-link voltage. This value is available filtered (r0026) and unfiltered (r0070).
Index: [0] = Compensation DC voltage Channel
[1] = Measurement/Monitoring DC voltage Channel
Note: r0026[0] = Main DC-link voltage
r0026[1] = Decoupled DC-link voltage for internal supply (e.g. for CU). It depends on the drive topology. If it is not
available it shows the value 0.
Description: Displays rms value of motor current [A]. This value is available filtered (r0027) and unfiltered (r0068).
Description: Displays flux-generating current component. This value is available filtered (r0029) and unfiltered (r0076).
The flux-generating current component is based on the nominal flux, which is calculated from the motor parameters
(P0340 - Calculation of motor parameters).
Dependency: Applies when vector control is selected in P1300 (control mode); otherwise, the display shows the value zero.
Note: The flux-generating current component is generally constant up to the base speed of the motor; above base speed,
this component is weakened (field weakening) thus enabling an increase in motor speed but at reduced torque.
Description: Displays torque-generating current component. This value is available filtered (r0030) and unfiltered (r0078).
The torque-generating current component is calculated from the torque setpoint values delivered by the speed con-
troller.
Dependency: Applies when vector control is selected in P1300 (control mode); otherwise, the display shows the value zero.
Note: For asynchronous motors, a limit is calculated for the torque generating current component (in conjunction with the
maximum possible output voltage (r0071), motor leakage and current field weakening (r0377)) and this prevents
motor stalling.
Description: Displays electrical torque. Output value will be zero at low speeds when current injection is active (r1751.4 = 1).
This value is available filtered (r0031) and unfiltered (r0080).
Note: The electrical torque is not the same as the mechanical torque, which can be measured on the shaft. Due to wind-
age and friction a part of the electrical torque is lost in the motor.
r0025 CO: Act. output voltage / Act.outp. volt
Access level: 2 P-Group: Closed-loop control Data type: Floating Point
Unit: [V] Data set: -
r0026[0...1] CO: Act. filtered DC-link volt. / Act. fil. Vdc
Access level: 2 P-Group: Converter Data type: Floating Point
Unit: [V] Data set: -
r0027 CO: Act. output current / Act. outp. cur
Access level: 2 P-Group: Closed-loop control Data type: Floating Point
Unit: [A] Data set: -
r0029 CO: Flux gen. current / Flux gen. cur.
Access level: 3 P-Group: Closed-loop control Data type: Floating Point
Unit: [A] Data set: -
r0030 CO: Torque gen. current / Torque gen.cur
Access level: 3 P-Group: Closed-loop control Data type: Floating Point
Unit: [A] Data set: -
r0031 CO: Act. filtered torque / Act fil torque
Access level: 2 P-Group: Closed-loop control Data type: Floating Point
Unit: [Nm] Data set: -

Siemens CU240S DP-F Specifications

General

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