2 Parameters
2.2 List of parameters
SINAMICS G120 CU250S-2 Control Units
228
List Manual, 09/2017, A5E33842890
Description:
Sets the brake control type (with or without diagnostics evaluation).
Example for brake control with diagnostics evaluation.
- brake control in the Motor Modules in booksize format
- Safe Brake Relay for AC Drive
Example for brake control without diagnostics evaluation.
- Brake Relay for AC Drive
Value:
0:
Brake control with diagnostics evaluation
1:
Brake control without diagnostics evaluation
Note:
If the configuration of the motor holding brake (p1215) is set to "no holding brake present" when booting, then an
automatic identification of the motor holding brake will be carried out. If a brake control is detected without
diagnostics evaluation (e.g. Brake Relay for AC Drive), then the parameter is set to "brake control without diagnostics
evaluation".
It is not permissible to parameterize "brake control without diagnostics evaluation" and also enable "safe brake
control" (p1278 = 1, p9602 = 1, p9802 = 1).
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.
p1278
Brake control diagnostics evaluation / Brake diagnostics
Access level:
2
Calculated:
-
Data type:
Integer16
Can be changed:
U, T
Scaling:
-
Dyn. index:
-
Unit group:
-
Unit selection:
-
Func. diagram:
-
Min Max
Factory
setting
0 1 0
p1280[0...n]
Vdc controller configuration (U/f) / Vdc_ctr config U/f
PM240
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
Min Max
Factory
setting
0 3 1