Siemens SINAMICS S120 Function Manual page 330

Basic functions
7.17 Energy-saving display
Energy-saving function
This function determines the amount of energy used and compares it with the interpolated
energy required for a plant or system equipped with a conventional throttle control. The
amount of energy saved is calculated over the last 100 operating hours and is displayed in
kW. For an operating time of less than 100 hours, the potential energy-saving is interpolated
up to 100 operating hours. To do this, you must manually enter the plant/system
characteristic with the conventional throttle control.
Note
Plant/system characteristic
The factory setting is used as basis for the calculation if you do not enter the interpolation
points for your plant/system characteristic. The values of the factory setting can deviate from
your plant/system characteristic and result in an inaccurate calculation.
This calculation is configurable individually for each individual axis.
Activation of the function
This function is enabled only for vector mode.
● The function is automatically activated after the pulses have been enabled
● Enter five interpolation points for the load characteristic in parameters p3320 to p3329:
Table 7- 11
Interpolation point
Reset the energy display
Set p0040 = 1, to reset the value of parameter r0041 to 0. Parameter p0040 is then
automatically set back to 0.
330
Plant/system interpolation points
Parameter
1
2
3
4
5
p3320
p3321
p3322
p3323
p3324
p3325
p3326
p3327
p3328
p3329
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Factory setting:
P - power in %
n - speed in %
P1 = 25.00
n1 = 0.00
P2 = 50.00
n2 = 25.00
P3 = 77.00
n3 = 50.00
P4 = 92.00
n4 = 75.00
P5 = 100.00
n5 = 100.00
Drive functions