Danfoss VLT AFE 302 - 4 How to Install; Overall Frequency Converter Configuration

4 How to Install
This chapter covers mechanical and electrical installations to and from power terminals and control card terminals.
4.1 Overall Frequency Converter Configuration
Fuse Fuse Fuse Fuse Fuse Fuse Fuse Fuse
Inv #1 Inv #2 Inv #3 Inv #4
R S T
LCL Filter
Fuse
Disconnect
Main PC Sub PC1 Sub PC2
CT
CT CT
gate signals
* Control gate signals * Detect currents. * Measure DC voltage. * Control fans. * Control gate signals * Detect currents. * Control fans. * Control gate signals * Detect currents. * Control fans.
gate signals
gate signals
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MDCIC
FC302 CC
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MDCIC Functions: * Distribute the gate signals. * Combine the current signals and send it as a total rec current. Detect the overcurrent (IMAX1) per module per phase. * Detect the main voltage phase to synchronize AFE (Only for AFE)
Voltage Detection
Fan Volt Soft Charge Soft Charge
AFE #3 Contactor
Fuse:
AFE #2 Contactor
AFE #1 Contactor
Soft Charge Soft Charge Soft Charge Soft Charge
SC Wire Fuse
Fuse:
Fuse:
IM
Trolley
Travel
Fuse Fuse Fuse Fuse Fuse Fuse
PC PC PC PC
Soft Charge
Fan Volt Fan Volt Fan Volt Fan Volt
Fan Volt Fan Volt
Fan Volt Wire Fuse
SC Contactor
Hoist Master
Abbreviations: AFE: Active Front End CC: Control Card MDCIC: Multi-Drive Control Interface Card PC: Power Card
Fan Volt Supply 400V Contactor
400V
630V
Boom
Switch
IM
Hoist Master
IM IM
IM
130BA683.10
Illustration 4.1 System Overview
How to Install
VLT
®
Active Front End AFE 302 Operating Instructions Liebherr
22 MG.33.X2.02 - VLT
®
is a registered Danfoss trademark
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