Parameter list
7.2 Parameter list
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167
183
Parameter
Function
Range
Factory
default
Can be
changed
Scaling
Data
set
Data
type
Acc.
Level
P1350[0...2] Voltage soft start
0 - 1
0
U, T
-
DDS
U16
3
Sets whether voltage is built up smoothly during magnetization time (ON) or whether it simply jumps to
boost voltage (OFF).
0
OFF
1
ON
Note:
The settings for this parameter bring benefits and drawbacks:
•
P1350 = 0: OFF (jump to boost voltage)
Benefit: flux is built up quickly
Drawback: motor may move
•
P1350 = 1: ON (smooth voltage build-up)
Benefit: motor less likely to move
Drawback: flux build-up takes longer
P1780[0...2] Control word of Rs/Rr-
adaption
0 - 1
1
U, T
-
DDS
U16
3
Enables thermal adaptation of stator and rotor resistance to reduce torque errors in speed / torque
regulation with speed sensor, or speed errors in speed / torque regulation without speed sensor.
Bit
Signal name
1 signal
0 signal
00
Enable thermal Rs/Rr-adapt.
Yes
No
P1800[0...2] Pulse frequency [kHz]
2 - 16
4
U, T
-
DDS
U16
2
Sets pulse frequency of power switches in inverter. The frequency can be changed in steps of 2 kHz.
Dependency: The minimum / maximum / default values of the pulse frequency are determined by the used power
module.
Furthermore the minimum pulse frequency depends on the parameterization of P1082 (maximum
frequency) and P0310 (rated motor frequency).
Note:
If the pulse frequency is increased, maximum inverter current r0209 can be reduced (derating). The
derating characteristic depends on the type and power of the inverter.
If silent operation is not absolutely necessary, lower pulse frequencies may be selected to reduce inverter
losses and radio-frequency emissions.
Under certain circumstances, the inverter may reduce the pulse frequency to provide protection against
overtemperature (see P0290 and P0291 bit 00).
r1801[0...1]
CO: Pulse frequency
[kHz]
-
-
-
-
-
U16
3
Displays information about pulse frequency of power switches in inverter.
r1801[0] displays the actual inverter pulse frequency.
r1801[1] displays the minimum inverter pulse frequency which can be reached when the functions "motor
identification" or "inverter overload reaction" are active. If no PM is plugged this parameter is set to 0 kHz.
Index:
[0]
Actual pulse frequency
[1]
Minimum pulse frequency
Notice:
Under certain conditions (inverter overtemperature, see P0290), this can differ from the values selected in
P1800 (pulse frequency).
P1802
Modulator mode
1 - 3
3
U, T
-
-
U16
3
Selects inverter modulator mode.
1
Asymmetric SVM
2
Space vector modulation
3
SVM / ASVM controlled mode
