Siemens SINAMICS G120 - r0036 CO: Power unit overload I2 t; PU overload I2 t; r0037[0...19] CO: Power unit temperatures; PU temperatures; r0038 Power factor smoothed; Cos phi smooth

Parameters
List of Parameters
1-26
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
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
Description: Displays the temperatures in the power unit.
Index: [0] = Inverter
[1] = Depletion layer
[2] = Reserved
[3] = Reserved
[4] = Interior of power unit
[5] = Inverter 1
[6] = Reserved
[7] = Reserved
[8] = Reserved
[9] = Reserved
[10] = Reserved
[11] = Reserved
[12] = Reserved
[13] = Depletion layer 1
[14] = Reserved
[15] = Reserved
[16] = Reserved
[17] = Reserved
[18] = Reserved
[19] = Reserved
Note: The value of -200 indicates that there is no measuring signal.
Description: Displays the smoothed actual power factor.
Note: Smoothing time constant = 300 ms
The signal is not suitable as a process quantity and may only be used as a display quantity.
Significance for the motor: Motor power factor
Significance for the infeed: Power factor at the connection point (p3470, p3471)
r0036 CO: Power unit overload I2t / PU overload I2t
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: PERCENT Data set: -
Units group: - Unit selection: -
Min Max Factory setting
- [%] - [%] - [%]
r0037[0...19] CO: Power unit temperatures / PU temperatures
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2006 Data set: -
Units group: 21_1 Unit selection: p0505
Min Max Factory setting
- [°C] - [°C] - [°C]
r0038 Power factor smoothed / Cos phi smooth
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: - Data set: -
Units group: - Unit selection: -
Min Max Factory setting
- - -