Reactive Power Compensation - Siemens SINUMERIK 840D sl Ctrl-Energy System Manual

Reactive power compensation

The Active Line Modules of the SINAMICS S120 series offer the option of compensating
capacitive or inductive reactive current. As standard, this function is used to compensate for
the system's own modules.
In addition, within a sensible scope, this feature can be used to compensate other (generally
inductive) loads connected to machine.
As a result of the properties of the SINAMICS S120 Active Line Module as actuator on one
hand, the properties of SENTRON PAC4200 as measuring element as well as additional PLC
blocks (also as controller), this function can be implemented with the SINUMERIK 840D sl also
independent of NC software releases.
Further information
Please contact your local sales organization if you require additional information regarding
reactive power compensation.
Function schematic
Figure 5-1
Ctrl-Energy
System Manual, 01/2015, 6FC5397-0EP40-5BA2
Principle of operation of reactive power compensation
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