Siemens SINAMICS G120 List Manual page 58

2 Parameters
2.2 List of parameters
Note: The parameter value includes the sum of all of the capacitances of a phase connected in series (phase - ground).
When exiting the quick commissioning using p3900 = 1, the parameter value is set to the value of the defined
SIEMENS filter or to zero. For this reason, the parameter value of a third-party filter only has to be entered outside
the commissioning phase (p0010 = 0).
The parameter cannot be changed if the power unit has an internal sine-wave filter.
r0238 Internal power unit resistance / PU R internal
Access level: 3
Can be changed: -
Unit group: -
Min
- [ohm]
Description: Displays the internal resistance of the power unit (IGBT and line resistance).
p0287[0...1] Ground fault monitoring thresholds / Gnd flt threshold
Access level: 3
Can be changed: T
Unit group: -
Min
0.0 [%]
Description: Sets the shutdown thresholds for the ground fault monitoring.
The setting is made as a percentage of the maximum current of the power unit (r0209).
Index: [0] = Threshold at which precharging starts
[1] = Threshold at which precharging stops
Dependency: Refer to: p1901
Refer to: F30021
Note: This parameter is only relevant for chassis power units.
r0289 CO: Maximum power unit output current / PU I_outp max
Access level: 3
Can be changed: -
Unit group: -
Min
- [Arms]
Description: Displays the actual maximum output current of the power unit taking into account derating factors.
p0290 Power unit overload response / PU overld response
Access level: 3
Can be changed: T
Unit group: -
Min
0
Description: Sets the response to a thermal overload condition of the power unit.
The following quantities can result in a response to thermal overload:
- heat sink temperature (r0037[0]).
- chip temperature (r0037[1]).
- power unit overload I2t (r0036).
Possible measures to avoid thermal overload:
- reduce the output current limit r0289 and r0067 (for closed-loop speed or torque control) or the output frequency (for
U/f control) indirectly via the output current limit and the intervention of the current limiting controller).
- reduce the pulse frequency.
A reduction, if parameterized, is always realized after an appropriate alarm is output.
58
Calculated: -
Scaling: -
Unit selection: -
Max
- [ohm]
Calculated: -
Scaling: -
Unit selection: -
Max
100.0 [%]
Calculated: -
Scaling: p2002
Unit selection: -
Max
- [Arms]
Calculated: -
Scaling: -
Unit selection: -
Max
13
SINAMICS G120 Control Units CU240B-2/CU240E-2
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
- [ohm]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
[0] 6.0 [%]
[1] 16.0 [%]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
- [Arms]
Data type: Integer16
Dyn. index: -
Func. diagram: 8021
Factory setting
2
List Manual (LH11), 01/2016, A5E33839529