User Manual

2 Parameters
2.2 List of parameters
SINAMICS G120 CU230P-2 Control Units
196 List Manual, 04/2018, A5E33838102
Description: Sets the configuration of the controller for the DC link voltage (Vdc controller) in the U/f operating mode.
Value: 0: Inhibit Vdc ctrl
1: Enable Vdc_max controller
2: Enable Vdc_min controller (kinetic buffering)
3: Enable Vdc_min controller and Vdc_max controller
Dependency: Not visible with application class: "Dynamic Drive Control" (DDC, p0096 = 2)
Note: For high input voltages (p0210), the following settings can improve the degree of ruggedness of the Vdc_max
controller:
- set the input voltage as low as possible, and in so doing, avoid A07401 (p0210).
- set the rounding times (p1130, p1136).
- increase the ramp-down times (p1121).
- reduce the integral time of the controller (p1291), factor 0.5.
- activate the Vdc correction in the current controller (p1810.1 = 1) or reduce the derivative action time of the
controller (p1292, factor 0.5).
In this case, we generally recommend to use vector control (p1300 = 20) (Vdc controller, see p1240).
The following measures are suitable to improve the Vdc_min controller:
- Optimize the Vdc_min controller (see p1287).
- Activate the Vdc correction in the current controller (p1810.1 = 1).
If a braking resistor is connected to the DC link (p0219 > 0), then the Vdc_max control is automatically deactivated.
Description: Sets the configuration for the DC link voltage controller.
Dependency: Not visible with application class: "Dynamic Drive Control" (DDC, p0096 = 2)
Note: For bit 00:
Deactivate the ramp-up for Vdc_min control.
For drives with a mechanical system that can oscillate and high moment of inertia, the speed can be more quickly
tracked.
For bit 02:
When the line supply returns, normal operation is resumed earlier, and the system does not wait until the Vdc min
controller reaches the setpoint speed.
p1280[0...n] Vdc controller configuration (U/f) / Vdc_ctr config U/f
PM240
PM330
Access level: 3 Calculated: - Data type: Integer16
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 6300, 6320, 6854
Min Max Factory setting
0 3 1
p1281[0...n] Vdc controller configuration / Vdc ctrl config
Access level: 3 Calculated: p0340 = 1 Data type: Unsigned16
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
- - 0000 bin
Bit field: Bit Signal name 1 signal 0 signal FP
00 Vdc min control (U/f) without up ramp Yes No -
02 Vdc min shorter wait time when the line
returns
Yes No -