Siemens Sinamics G120P Operating Instructions Manual page 373

Parameters for the Vdc_min control
There are two different groups of parameters for the Vdc_min control, depending on whether
the motor is being operated with V/f control or vector control.
Parameter
r0056.15
p0210
Parameters for
vector control
p1240
p1245
r1246
p1247
p1255
p1256
p1257
All parameter specifications in parentheses refer to V/f control.
For more information, refer to the parameter descriptions and the function block diagrams
6220 and 6320 of the List Manual.
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
Description
Status word, closed-loop control: Vdc_min controller active
0: V
DC min
1: V
DC min
Device supply voltage
Parameters for
V/f control
p1280 V controller configuration (factory setting: 1)
DC
0: Inhibit V
1: Enable V
2: Enable V
3: Enable V
p1285 V
DC min
ting: 76 %)
r1286 V
DC min
r1246 = p1245 × √2 × p0210
r1286 = p1285 × √2 × p0210
p1287 V
DC min
p1295 V
DC min
Maximum duration of the kinetic buffering If kinetic buffering
lasts longer than that specified in the parameter value, the in-
verter outputs fault F7406.
A value of 0 deactivates the monitoring.
p1296 V
DC min
0: Buffering V
in fault F07405
1: Buffering V
in fault F07405, t>p1255 (p1295) results in fault F07406
p1297 V
DC min
When fallen below, the inverter outputs fault F7405.
controller is not active
controller is active (kinetic buffering)
controller
DC
controller
DC max
controller (kinetic buffering)
DC min
controller and V
DC min
controller activation level (kinetic buffering) (factory set-
controller activation level [V]
controller dynamic factor (factory setting: 300 % (100 %))
controller time threshold (factory setting: 0 s)
controller response (factory setting: 0)
until undervoltage, n<p1257 (p1297), results
DC
until undervoltage, n<p1257 (p1297), results
DC
controller speed threshold (factory setting: 50 rpm)
Functions
7.6 Protection functions
controller
DC max
373