8
05.01
8.15 Examples of correctly and incorrectly connecting NE
8-320
© Siemens AG 2008 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 05/2008 Edition
e.g. NCU PMxx
P600
M600
U1 V1 W1 PE
PMxx PMxx PMxx
X181
M500
P500
2U1
1U1
2V1
1V1
2W1
1W1
X181
M500
P500
2U1
1U1
2V1
1V1
2W1
1W1
Incorrect!
L1
L
K
2)
F
N
(X A)
Filter (X kW)
PE
L2
L3
Schematic diagram
L1
F
N
(X A)
Filter (5 kW)
L2
L3
Illegal (forbidden)
six–conductor connection
to the line supply with DC
link buffering
1)
1)
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
Note:
2) L
k
for 5 kW and 10 kW integrated, therefore not necessary here!
NE MM
Twisted
cable
Fig. 8-39 Examples of illegal (forbidden) six–conductor connection to the line supply + DC link connection
8 Im
ortant Circuit Information
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