Siemens Simodrive 611 Configuration Manual page 321

Drive converters

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8 Important Circuit Information

8.15 Examples of correctly and incorrectly connecting NE

Schematic diagram

Filter (5 kW)

Filter (X kW)

Consequences when incorrectly connected to the line supply:

1) For a six–conductor connection to the line supply with DC link connection, the following can occur

immediately or over the medium term:

DC link electrolytic capacitors on the power supply will be destroyed

Arcing occurs

The following burn:

DC link de–coupling diodes

PC board tracks

for 5 kW and 10 kW integrated, therefore not necessary here!

Examples of illegal (forbidden) six–conductor connection to the line supply + DC link connection

e.g. NCU PMxx

Illegal (forbidden)

six–conductor connection

to the line supply with DC

link buffering

SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition

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