Siemens SINAMICS G120X - CO: Maximum Power Unit Output Current; PU I_Outp Max; Ground Fault Monitoring Thresholds; Gnd Flt Threshold; Power Unit Overload Response; PU Overld Response

p0287[0...1] Ground fault monitoring thresholds / Gnd flt threshold
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: T Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: -
Min:
0.0 [%]
Max:
100.0 [%]
Factory setting:
[0] 6.0 [%]
[1] 16.0 [%]
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: See also: p1901
See also: 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 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2002 Dynamic index: -
Unit group: - Unit selection: - Function diagram: -
Min:
- [Arms]
Max:
- [Arms]
Factory setting:
- [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 Calculated: - Data type: Integer16
Can be changed: T Scaling: - Dynamic index: -
Unit group: - Unit selection: - Function diagram: 8021
Min:
0
Max:
13
Factory setting:
2
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 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.
Value: 0: Reduce output current or output frequency
1: No reduction shutdown when overload threshold is reached
2: Reduce I_output or f_output and f_pulse (not using I2t)
3: Reduce the pulse frequency (not using I2t)
12: I_output or f_output and automatic pulse frequency reduction
13: Automatic pulse frequency reduction
Parameters
7.2 Parameter list
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC 509