
Functions
7.6 Protection functions
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A
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
Description
r0056.15
Status word, closed-loop control: Vdc_min controller active
0: V
DC min
controller is not active
1: V
DC min
controller is active (kinetic buffering)
p0210
Device supply voltage
Parameters for
vector control
Parameters for
V/f control
p1240
p1280
V
DC
controller configuration (factory setting: 1)
0: Inhibit V
DC
controller
1: Enable V
DC max
controller
2: Enable V
DC min
controller (kinetic buffering)
3: Enable V
DC min
controller and V
DC max
controller
p1245
p1285
V
DC min
controller activation level (kinetic buffering) (factory set-
ting: 76 %)
r1246
r1286
V
DC min
controller activation level [V]
r1246 = p1245 ×
√2 × p0210
r1286 = p1285 × √2 × p0210
p1247
p1287
V
DC min
controller dynamic factor (factory setting: 300 % (100 %))
p1255
p1295
V
DC min
controller time threshold (factory setting: 0 s)
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.
p1256
p1296
V
DC min
controller response (factory setting: 0)
0: Buffering V
DC
until undervoltage, n<p1257 (p1297), results
in fault F07405
1: Buffering V
DC
until undervoltage, n<p1257 (p1297), results
in fault F07405, t>p1255 (p1295) results in fault F07406
p1257
p1297
V
DC min
controller speed threshold (factory setting: 50 rpm)
When fallen below, the inverter outputs fault F7405.
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.
Содержание SINAMICS G120P
Страница 1: ......
Страница 2: ......
Страница 8: ...Preface Inverter cabinet units 8 Operating Instructions 12 2014 A5E32923362A ...
Страница 16: ...Table of contents Inverter cabinet units 16 Operating Instructions 12 2014 A5E32923362A ...
Страница 255: ...Operation 6 8 Communication via RS485 Inverter cabinet units Operating Instructions 12 2014 A5E32923362A 255 ...
Страница 432: ...Application examples Inverter cabinet units 432 Operating Instructions 12 2014 A5E32923362A ...
Страница 496: ......