Inverter Overload Utilization; Inverter Temperature [Degrees C]; Act. Power Factor; Energy Consumpt. Meter [Kwh] - Siemens MICROMASTER 440 Parameter Manual

Parameter Description
r0036 CO:Inverter overload utilization
P-Group: INVERTER
Displays inverter overload utilization calculated via I2t model.
The actual I2t value relative to the max. possible I2t value supplies utilization in [%].
If the current exceeds the threshold for P0294 (inverter I2t overload warning), alarm A0505 (inverter I2t) is
generated and the output current of the inverter reduced via P0290 (inverter overload reaction).
If 100 % utilization is exceeded, alarm F0005 (inverter I2t) is tripped.
Example:
Normalized output current
r0027
r0207
100 %
2
i t [%]
r0036
P0294 (95 %)
A0505
1
0
Dependency:
r0036 > 0:
If the nominal current of the inverter is exceed, utilization will be displayed. Otherwise, 0 % utilization is
displayed.
r0037[5] CO: Inverter temperature [°C]
P-Group: INVERTER
Displays measured heatsink temperature and calculated junction temperature of IGBTs based on thermal
model.
Index:
r0037[0] : Measured heat sink temperature
r0037[1] : Chip temperature
r0037[2] : Rectifier temperature
r0037[3] : Inverter ambient temperature
r0037[4] : Control board temperature
r0038 CO: Act. power factor
P-Group: CONTROL
Displays actual power factor.
Dependency:
Applies when V/f control is selected in P1300 (control mode); otherwise, the display shows the value 1.
r0039 CO: Energy consumpt. meter [kWh]
P-Group: INVERTER
Displays electrical energy used by inverter since display was last reset (see P0040 - reset energy
consumption meter).
t
ac t
= ⋅
r0039
∫
P
W
0
Dependency:
Value is reset when P0040 = 1 (reset energy consumption meter).
32
Datatype: Float
Datatype: Float
Datatype: Float
Datatype: Float
t
act
= ⋅ ⋅ ⋅ ⋅ ϕ
dt 3 u i cos dt
∫
0
Min: -
Unit: % Def: -
Max: -
Reaction via P0290
Default: "current reduction"
Min: -
Unit: °C Def: -
Max: -
Min: -
Unit: - Def: -
Max: -
Min: -
Unit: kWh Def: -
Max: -
MICROMASTER 440
6SE6400-5BB00-0BP0
Issue 01/06
Level
4
t
t
t
Level
3
Level
3
Level
2
Parameter List