Siemens SINAMICS G List Manual page 63

p0290 Power module overload response / PM overld response
VECTOR Can be changed: T
Data type: Integer16
P-Group: Drive converter
Min
0
Description: Sets the response to a thermal overload condition of the power module.
The following quantities can result in a response to thermal overload:
- heatsink temperature (r0037.0)
- chip temperature (r0037.1)
- power module overload I2T (r0036)
Possible measures to avoid thermal overload:
- reduce the output current (closed-loop speed/velocity or torque/force control) or the output frequency (V/f control).
- reduce the pulse frequency (only for closed-loop vector control).
A reduction, if parameterized, is always realized after an appropriate alarm is output.
Values: 0:
1:
2:
3:
Dependency: If a sinusoidal filter is parameterized as output filter (p0230 = 3, 4), then only responses can be selected without
pulse frequency reduction (p0290 = 0, 1).
If a fault or alarm is present, then r2135.13 or r2135.15 is set.
Refer to: r0036, r0037, r0108, p0230, r2135
Refer to: A05000, A05001, A07805
Cautiont: If the thermal overload of the power module is not sufficiently reduced by the actions taken, the drive is always shut
down. This means that the power module is always protected independent of the setting of this parameter.
Note: The setting p0290 = 0, 2 is only practical if the load decreases with decreasing speed (e.g. for applications with vari-
able torque such as for pumps and fans).
For p0290 = 2, 3, the I2t overload detection of the power module does not influence the responses.
p0294 Power module alarm with I2t overload / PM I2t alrm thresh
VECTOR Can be changed: U, T
Data type: Floating Point
P-Group: Drive converter
Min
10.0 [%]
Description: Sets the alarm threshold for the I2t power module overload.
Drive:
If this threshold is exceeded, an overload alarm is generated and the system responds as parameterized in p0290.
Infeed:
When the threshold value is exceeded, only an overload alarm is output.
Dependency: Refer to: r0036, p0290
Refer to: A07805
Note: The I2t fault threshold is 100 %. If this value is exceeded, fault F30005 is output.
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SINAMICS G List Manual, Edition 12.2004
Reduce output current or output frequency
No reduction, shutdown when overload threshold is reached
Reduce the output current or output and pulse frequency (not using I2t)
Reduce the pulse frequency (not using I2t)
Data set: -
Units group: -
Max
3
Data set: -
Units group: PERCENT
Max
100.0 [%]
Parameters
Parameter list
Access level: 3
Function diagram: 8014
Unit selection: -
Factory setting
0
Access level: 3
Function diagram: 8014
Unit selection: -
Factory setting
95.0 [%]
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