Siemens SINAMICS G120 List Manual page 32

2 Parameters
2.2 List of parameters
r0036 CO: Power unit overload I2t / PM overload I2t
Access level: 3
Can be changed: -
Unit group: -
Min
- [%]
Description: Displays the power unit overload determined using the I2t calculation.
A current reference value is defined for the I2t monitoring of the power unit. It represents the current that can be
conducted by the power unit without any influence of the switching losses (e.g. the continuously permissible current
of the capacitors, inductances, busbars, etc.).
If the I2t reference current of the power unit is not exceeded, then an overload (0 %) is not displayed.
In the other case, the degree of thermal overload is calculated, whereby 100% results in a trip.
Dependency: Refer to: p0290, p0294
Refer to: F30005
r0037[0...19] CO: Power unit temperatures / PM temperatures
Access level: 4
Can be changed: -
Unit group: 21_1
Min
- [°C]
Description: Display and connector output for the temperature in the power unit.
Index: [0] = Inverter maximum value
[1] = Depletion layer maximum value
[2] = Rectifier maximum value
[3] = Air intake
[4] = Interior of power unit
[5] = Inverter 1
[6] = Inverter 2
[7...10] = Reserved
[11] = Rectifier 1
[12] = Reserved
[13] = Depletion layer 1
[14] = Depletion layer 2
[15] = Depletion layer 3
[16] = Depletion layer 4
[17] = Depletion layer 5
[18] = Depletion layer 6
[19] = Reserved
Notice: Only for internal Siemens troubleshooting.
Note: The value of -200 indicates that there is no measuring signal.
r0037[0]: Maximum value of the inverter temperatures (r0037[5...10]).
r0037[1]: Maximum value of the depletion layer temperatures (r0037[13...18]).
r0037[2]: Maximum value of the rectifier temperatures (r0037[11...12]).
The maximum value is the temperature of the hottest inverter, depletion layer, or rectifier.
r0037[2, 3, 6, 11, 14...18] is only relevant for chassis power units.
In the case of a fault, the particular shutdown threshold depends on the power unit, and cannot be read out.
32
Calculated: -
Scaling: PERCENT
Unit selection: -
Max
- [%]
Calculated: -
Scaling: p2006
Unit selection: p0505
Max
- [°C]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 8021
Factory setting
- [%]
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 8021
Factory setting
- [°C]
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890