Siemens SINAMICS V20 Series, Руководство по эксплуатации

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Parameter list
7.2 Parameter list
SINAMICS V20 Inverter
176
Operating Instructions, 07/2012, A5E03728167
Parameter Function Range Factory
default Can be
changed Scaling Data
set Data
type Acc.
Level
P1245[0...2] Switch on level kinetic
buffering [%]
65 - 95 76 U, T - DDS U16 3
Enter switch-on level for kinetic buffering (KIB) in [%] relative to supply voltage (P0210).
r1246[V] = (P1245[%] / 100) * sqrt(2) * P0210
Warning: Increasing the value too much, may interfere with the inverter normal operation.
Note: P1254 has no effect on the switch-on-level for kinetic buffering.
r1246[0...2] CO: Switch-on level
kinetic buffering [V]
- - - - DDS Float 3
Displays switch-on level of kinetic buffering (KIB, Vdc_min controller). If the dc-link voltage drops below the
value in r1246, kinetic buffering will be activated. That means the motor frequency will be reduced in order
to keep Vdc within the valid range. If there is not enough regenerative energy, the inverter trips with
undervoltage.
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 inverter 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 -
599.00
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 inverter 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
recommended to set P1254 = 1 (auto-detection of Vdc switch-on levels enabled). Setting P1254 = 0 is only
recommended 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 inverter 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
regeneration is produced, inverter may trip with undervoltage.
0 Maintain DC-link until trip
1 Maintain DC-link until trip / stop