Active Infeed Closed-Loop Control Chassis - Siemens SINAMICS S120 Function Manual

Hide thumbs Also See for SINAMICS S120:

Table of Contents

1.1 Active Infeed

Active Infeed closed-loop control Chassis

Schematic structure

Operating mode of Active Infeed closed-loop control for Chassis Active Line Modules.

Active Line Modules Chassis only function in Active Mode.

In Active Mode, the DC link voltage is regulated to a variable setpoint (p3510), which results

in a sinusoidal line current (cosφ = 1).

The DC link voltage setpoint (p3510) is preset depending on the supply voltage (p0210)

using the equation p3510 = 1.5 * p0210.

Commissioning

The device supply voltage (p0210) must be parameterized during commissioning. The

necessary line filter (p0220) is preset.

When it is first switched on with a new/modified network, an automatic controller setting

should be implemented using the line/DC link identification routine (p3410).

In a supply system without regenerative feedback capability (e.g. generators), regenerative

operation must be inhibited via the binector input p3533.

The DC link voltage (p3510) can be set within the following limits:

● Upper limit:

● Lower limit: Supply voltage (p0210) multiplied by 1.42

Schematic structure of Active Infeed

– Maximum DC link voltage (p0280)

– Product of line voltage (p0210) and max. step-up factor (r3508)

Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5

Drive functions