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

Infeed

Active Infeed

1.1 Active Infeed
1.1.1

Active Infeed closed-loop control

Features
S Controlled DC link voltage whose level can be adjusted
S Regenerative feedback capability
S Specific reactive current setting
S Low line harmonics, sinusoidal line current
Description
Active Infeed closed-loop control works together with the line reactor and the
Active Line Module as a step-up converter. The DC voltage level can be defined
via parameters.
The open and closed-loop control firmware for the Active Line Module runs on the
Control Unit assigned to it. The Active Line Module and Control Unit communicate
via DRIVE-CLiQ.
Terminal diagram for Active Infeed Booksize
Fig. 1-1
1-18
Control unit
Firmware
Actual values
Active
Infeed
Control
DRIVE-CLiQ
Schematic structure of Active Infeed Booksize
Network
Main circuit-breaker
with leading auxiliary
contact
Fuses
Line filter (optional)
Voltage Sensing
Module (optional)
Line filter (optional)
Line reactor
Manipulated variables
Active Line Module
Actual values
DC link
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition