Damping Resistor For Hfd Line Reactors; Description; Safety Instructions For Damping Resistors For Hfd Reactors - Siemens Sinamics S120 Manual

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Line connection and line-side power components

3.8 Line reactors

Damping resistor for HFD line reactors

Using a damping resistor

In some systems, oscillations can be generated which place an impermissibly high strain on

the insulation systems of the motors and converters involved. Connecting a damping resistor

to the additional winding of the HFD line reactor is an effective means of damping just such

system oscillations.

Ideally, new systems using Active Line Modules should be designed with Active Interface

Modules as line connection components.

Risk of burns due to high surface temperatures of the damping resistor

The damping resistor can become very hot. You can get seriously burnt when touching the

• Mount the damping resistors so that contact is not possible. If this is not possible, attach

• To prevent adjacent components from suffering damage due to these high

• If possible, mount the damping resistors externally, i.e. outside of the control cabinet.

a clearly visible and understandable warning notice at hazardous positions.

temperatures, maintain a clearance of 100 mm on all sides of the damping resistors.

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Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6