Parameter list
8.2 Parameter list
SINAMICS V20 Converter
266
Operating Instructions, 10/2019, A5E34559884-012
Parameter
Function
Range
Factory
default
Can be
changed
Scaling
Data set
Data
type
Acc.
Level
P1247[0...2] Dynamic factor of
kinetic buffering [%]
10 - 200
100
U, T
-
DDS
U16 3
Enters dynamic factor for kinetic buffering (KIB, Vdc_min controller). P1247 = 100 % means P1250, P1251
and P1252 (gain, integration time and differential time) are used as set. Otherwise, these are multiplied by
P1247 (dynamic factor of Vdc_min).
Note:
Vdc controller adjustment is calculated automatically from motor and converter data.
P1250[0...2] Gain of Vdc controller
0.00 - 10.00
1.00
U, T
-
DDS
Float 3
Enters gain for Vdc controller.
P1251[0...2] Integration time Vdc
controller [ms]
0.1 - 1000.0
40.0
U, T
-
DDS
Float 3
Enters integral time constant for Vdc controller.
P1252[0...2] Differential time Vdc
controller [ms]
0.0 - 1000.0
1.0
U, T
-
DDS
Float 3
Enters differential time constant for Vdc controller.
P1253[0...2] Vdc controller output
limitation [Hz]
0.00 - 550.00
10.00
U, T
-
DDS
Float 3
Limits maximum effect of Vdc_max controller.
Dependency:
This parameter is influenced by automatic calculations defined by P0340.
Note:
The Factory setting depends on converter power.
P1254
Auto detect Vdc
switch-on levels
0 - 1
1
C, T
-
-
U16 3
Enables/disables auto-detection of switch-on levels for Vdc_max controller. For best results, it is recom-
mended to set P1254 = 1 (auto-detection of Vdc switch-on levels enabled). Setting P1254 = 0 is only rec-
ommended when there is a high degree of fluctuation of the DC-link when the motor is being driven. Note
that the auto detection only works when the converter has been in standby for over 20s.
0
Disabled
1
Enabled
Dependency:
See P0210
P1256[0...2] Reaction of kinetic
buffering
0 - 2
0
C, T
-
DDS
U16 3
Enters reaction for kinetic buffering controller (Vdc_min controller). Depending on the setting selected, the
frequency limit defined in P1257 is used to either hold the speed or disable pulses. If not enough regenera-
tion is produced, converter may trip with undervoltage.
0
Maintain DC-link until trip
1
Maintain DC-link until trip/stop
2
Control stop
Summary of Contents for SINAMICS V20 Inverter
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