Parameters
List of Parameters
1-166
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: Sets the configuration of the controller for the DC link voltage (Vdc controller) in the V/f operating mode.
Value: 0: Inhib Vdc ctrl
1: Vdc_max controller enable
Note: For high input voltages (see p0210), the following settings can improve the degree of ruggedness of the Vdc_max
controller:
- Set the input voltage p0210 as low as possible (in so doing avoid A07401).
- 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 bit 1 = 1) or reduce the derivative action time of the
controller (p1292) (factor 0.5).
In this case, we always recommend using vector control (p1300 = 20) (Vdc controller, see p1240).
Description: Sets the configuration of the controller for the DC link voltage (Vdc controller) in the V/f operating mode.
Value: 0: Inhib Vdc ctrl
1: Vdc_max controller enable
2: Vdc_min controller (kinetic buffering) enable
3: Vdc_min controller and Vdc_max controller enable
Note: For high input voltages (see p0210), the following settings can improve the degree of ruggedness of the Vdc_max
controller:
- Set the input voltage p0210 as low as possible (in so doing avoid A07401).
- 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 bit 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 bit 1 = 1).
Description: Displays the switch-in level for the Vdc_max controller.
If p1294 = 0 (automatic sensing of the switch-in level = off), then the following applies:
r1282 = 1.15 * sqrt(2) * V_mains = 1.15 * sqrt(2) * p0210 (supply voltage)
If p1294 = 1 (automatic sensing of the switch-in level = on), then the following applies:
r1282 = Vdc_max - 50.0 V (Vdc_max: Overvoltage threshold of the power unit)
Note: The Vdc_max controller is not switched back off until the DC-link voltage falls below the threshold 0.95 * p1282 and
the controller output is zero.
p1280[0...n] Vdc controller or Vdc monitoring configuration (V/f) / Vdc_ctr config V/f
PM230 Access level: 3 Calculated: - Data type: Integer16
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0 1 1
p1280[0...n] Vdc controller or Vdc monitoring configuration (V/f) / Vdc_ctr config V/f
PM240 Access level: 3 Calculated: - Data type: Integer16
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0 3 1
r1282 Vdc_max controller switch-in level (V/f) / Vdc_max on_level
PM240 Access level: 3 Calculated: - Data type: FloatingPoint32
Unit: [V] Scaling: p2001 Data set: -
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