Parameter list
7.2 Parameter list
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167
133
Parameter Function Range Factory
default
Can be
changed
Scaling Data
set
Data
type
Acc.
Level
Notice: P0290 = 0, 2:
• Reduction of output frequency is only effective if the load is also reduced.
This is for example valid for light overload applications with a quadratic torque characteristic as pumps
or fans.
• For settings P0290 = 0 or 2, the I-max controller will act upon the output current limit (r0067) in case of
overtemperature.
P0290 = 0:
• With pulse frequencies above nominal, pulse frequency will be reduced to nominal immediately in the
event of r0027 greater than r0067 (current limit).
P0290 = 2, 3:
• The pulse frequency P1800 is reduced only if higher than 2 kHz and if the operating frequency is below
2 Hz.
• The actual pulse frequency is displayed in r1801[0] and the minimal pulse frequency for reduction is
displayed in r1801[1].
• Inverter I
2
t acts upon output current and output frequency, but not on pulse frequency.
A trip will always result, if the action taken does not sufficiently reduce internal temperatures.
P0291[0...2] Inverter protection 0 - 6 1 T - DDS U16 4
Bit Signal name 1 signal 0 signal
00 Pulse frequency reduced Yes No
01 Reserved Yes No
02 Phase loss detection No Yes
Note: See P0290
P0292 Inverter temperature
warning [°C]
0 - 25 5 U, T - - U16 3
Defines the temperature difference (in °C) between the overtemperature trip threshold (F4) and the
warning threshold (A504) of the inverter. The trip threshold is stored internally by the inverter and cannot
be changed by the user.
P0294 Inverter I
2
t warning [%] 10.0 -
100.0
95.0 U, T - - Float 3
Defines the [%] value at which warning A505 (inverter I
2
t) is generated.
Inverter I
2
t calculation is used to determine a maximum tolerable period for inverter overload.
The I
2
t calculation value is deemed = 100 % when this maximum tolerable period is reached.
Dependency:
• The output current of the inverter has been reduced.
• The value of I
2
t does not exceed 100 %.
Note: P0294 = 100 % corresponds to stationary nominal load.
P0295 Inverter fan off delay
time [s]
0 - 3600 0 U, T - - U16 3
Defines inverter fan switch off delay time in seconds after inverter has stopped.
Note: Setting to 0, inverter fan will switch off when the inverter stops, that means no delay.
P0304[0...2] Rated motor voltage [V] 10 - 2000 400 C(1) - DDS U16 1
Nominal motor voltage from rating plate.
Dependency: Changeable only when P0010 = 1 (quick commissioning).
Default value is depending on inverter type and its rating data.
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