Vdc_Min Controller Response (Kinetic Buffering) / Vdc_Min Response; Vdc_Min Controller Speed Threshold / Vdc_Min N_Thresh; Co: Vdc Controller Output / Vdc_Ctrl Output; Bypass Configuration / Bypass Config - Siemens SINAMICS G150 Manual

p1256[0...n]

Vdc_min controller response (kinetic buffering) / Vdc_min response

VECTOR_G (n/M) Can be changed: U, T
Data type: Integer16
P-Group: Functions
Not for motor type: REL
Min
0
Description: Sets the response for the Vdc_min controller (kinetic buffering).
Value: 0:
1:
p1257[0...n]

Vdc_min controller speed threshold / Vdc_min n_thresh

VECTOR_G (n/M) Can be changed: U, T
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
0.00 [rpm]
Description: Sets the speed threshold for the Vdc-min controller (kinetic buffering).
If this value is exceeded a fault is output; the required response can be parameterized .
Kinetic buffering is not started below the speed threshold.
Note: Exiting the Vdc_min control before reaching motor standstill prevents the regenerative braking current from
increasing significantly at low speeds, and after a pulse inhibit, means that the motor coasts down.
However, the maximum braking torque can be set via the appropriate torque limiting.
r1258

CO: Vdc controller output / Vdc_ctrl output

VECTOR_G (n/M) Can be changed: -
Data type: FloatingPoint32
P-Group: Functions
Not for motor type: REL
Min
- [Arms]
Description: Displays the actual output of the Vdc controller (DC link voltage controller)
Note: The regenerative power limit p1531 is used for vector control to pre-control the Vdc_max controller. The lower the
power limit is set, the lower the correction signals of the controller when the voltage limit is reached.
p1260

Bypass configuration / Bypass config

VECTOR_G Can be changed: U, T
(Tech_ctrl)
Data type: Integer16
P-Group: -
Not for motor type: -
Min
0
Description: Sets the configuration for the bypass function.
Value: 0:
1:
2:
3:
Note: If the bypass function is selected ((p1260 > 0), then when the power unit restarts after POWER OFF, the state of the
bypass switch is evaluated. This means that after the ramp-up, it is possible to directly change into the standby
mode. This is only possible for p1267 = 1 (bypass using the control signal) and if the control command after the
system has been booted is still available (p1266). This function has a higher priority than the automatic restart
function (p1210).
SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A
Buffer Vdc until undervoltage, n<p1257 -> F07405
Buff. Vdc until undervolt., n<p1257 -> F07405, t>p1255 -> F07406
Bypass de-activated
Bypass with synchronization and overlap
Bypass with synchronization without overlap
Bypass without synchronization
Calculated: -
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
1
Calculated: CALC_MOD_ALL
Dyn. index: DDS, p0180
Units group: 3_1
Scaling: -
Max
210000.00 [rpm]
Calculated: -
Dyn. index: -
Units group: 6_2
Scaling: p2002
Max
- [Arms]
Calculated: -
Dyn. index: -
Units group: -
Scaling: -
Max
3
2 Parameters
2.2 List of parameters
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0
Access level: 3
Func. diagram: -
Unit selection: p0505
Expert list: 1
Factory setting
50.00 [rpm]
Access level: 3
Func. diagram: 6220
Unit selection: p0505
Expert list: 1
Factory setting
- [Arms]
Access level: 2
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0
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