8
05.01
8.15 Examples of correctly and incorrectly connecting NE
8-316
© 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
X181
M500
P500
2U1
1U1
2V1
1V1
2W1
1W1
X181
M500
P500
2U1
1U1
2V1
1V1
2W1
1W1
Correct!
L1
L
K
3)
F
N
(X A)
Filter (X kW)
PE
L2
L3
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
3)
F
N
(X A)
Filter (X kW)
PE
L2
L3
2)
Schematic diagram
L1
L2
L3
1)
Consequences when incorrectly connected to
the line supply:
1) Another supply, e.g. UPS:
Defective DC link electrolytic capacitors at
the power supply
The following burn:
– DC link de–coupling diodes
– PC board tracks of the power supply
2) Another connection to the line supply in front of
the reactor (choke):
Defective DC link electrolytic capacitors at
the power supply
The following will burn in the power supply
– Connector
– De–coupling diodes
– PC board tracks
– Pre–charging circuit, printed circuit board
Three–conductor connection
to the line supply with DC
link buffering
Note:
3) L
k
for 5 kW and 10 kW integrated, therefore not necessary here!
4) P500/M500 connection at X181 either loop–through at X181 or connect directly to the DC link.
NE
NE MM
MM
Twisted
cable
4)
4)
4 MM
Twisted
cable
Fig. 8-34 Examples for correct and prohibited three–conductor connection to the line supply + DC link connection
8 Im
ortant Circuit Information
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