Siemens SINAMICS V20

Parameter list
8.2 Parameter list
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
253
Parameter
Function
Range
Factory
default
Can be
changed
Scaling
Data
set
Data
type
Acc.
Level
P1082[0...2]
Maximum frequency [Hz]
0.00 - 550.00
50.00
C, T
-
DDS
Float
1
Sets maximum motor frequency at which motor will run irrespective of the frequency setpoint. The value
set here is valid for both clockwise and counterclockwise rotation.
Furthermore, the monitoring function |f_act| >= P1082 (r0052 bit 10, see example below) is affected by
this parameter.
Example:
Dependency:
The maximum value of P1082 also depends on the nominal frequency: Max. P1082 = min (15*P0310,
550.0 Hz). As consequence P1082 can be affected if P0310 is changed to a smaller value. The maximum
frequency and the pulse frequency depending on each other. The maximum frequency affects the pulse
frequency according to the following table.
P1800
2 kHz
4 kHz
6 kHz
8 - 16 kHz
f
max
P1082
0 - 133.3 Hz
0 - 266.6 Hz
0 - 400 Hz
0 - 550.0 Hz
Example:
If P1082 is set to 350 Hz a pulse frequency from at least 6 kHz is necessary. If P1800 is smaller than 6
kHz the parameter is changed P1800 = 6 kHz.
The maximum output frequency of converter can be exceeded if one of the following is active:
Note:
When using the setpoint source
• Analog Input
• USS
the setpoint frequency (in Hz) is cyclically calculated using
• a percentage value(e.g. for the analog input r0754)
• a hexadecimal value (e.g. for the USS r2018[1])
• and the reference frequency P2000.
If for example P1082 = 80 Hz, P2000 = 50 Hz and the analog input is parameterized with P0757 = 0 V,
P0758 = 0 %, P0759 = 10 V, P0760 = 100 %, a setpoint frequency of 50 Hz will be applied at 10 V of the
analog input. When Quick Commissioning is carried out P2000 is changed as follows: P2000 = P1082.