Siemens CU240B-2 Parameter Manual page 26

Parameters
List of Parameters
r0036 CO: Power unit overload I2t / PU overload I2t
Access level: 3
Can be changed: -
Units 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 / PU temperatures
Access level: 4
Can be changed: -
Units group: 21_1
Min
- [°C]
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.
r0038 Power factor smoothed / Cos phi smooth
Access level: 4
Can be changed: -
Units group: -
Min
-
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)
1-26
Calculated: -
Scaling: PERCENT
Unit selection: -
Max
- [%]
Calculated: -
Scaling: p2006
Unit selection: p0505
Max
- [°C]
Calculated: -
Scaling: -
Unit selection: -
Max
-
SINAMICS G120 / Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Data type: FloatingPoint32
Data set: -
Factory setting
- [%]
Data type: FloatingPoint32
Data set: -
Factory setting
- [°C]
Data type: FloatingPoint32
Data set: -
Factory setting
-
© Siemens AG 2011 All Rights Reserved