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8 Important Circuit Information
8.15 Examples of correctly and incorrectly connecting NE
Schematic diagram
2)
1)
F
(X A)
N
L1
L2
L3
PE
Filter (X kW)
4)
Filter (X kW)
5)
F
(X A)
L
N
K
L1
L2
L3
PE
Consequences when incorrectly connected to the
line supply:
1)/2)
Connected in front of the reactor (choke):
S
Burnt PC board tracks/connectors
3)
Another connection to the line supply in front of
the reactor (choke):
S
Defective DC link electrolytic capacitors
S
The following burn:
–
Connector in the power supply
–
Rectifier diodes
–
Pre–charging de–coupling, diodes
Fig. 8-31
Examples of three–conductor connection to the line supply that are absolutely prohibited
8-314
NE
e.g. NCU PMxx
X181
M500
n.c.
n.c.
P500
2U1
1U1
2V1
1V1
2W1
1W1
Twisted
cable
P600
M600
U1
V1 W1
PE
5)
L
K
Three–conductor connection
to the line supply
NE
e.g. NCU PMxx
X181
M500
n.c.
P500
n.c.
2U1
1U1
2V1
1V1
2W1
1W1
Twisted
cable
P600
M600
U1
V1 W1
PE
SIMODRIVE 611 Configuration Manual (PJU) – 02/2012 Edition
Incorrect!
PMxx
MM
X181
n.c.
M500
n.c.
P500
Incorrect!
PMxx
MM
X181
n.c.
M500
n.c.
P500
4)
Short–circuit due to phase interchange with
jumper X181 ––> the following will burn:
S
PC board tracks of the internal power supply
S
Varistor module at X181
S
Connector in the power supply
5) Note:
L
for 5 kW and 10 kW integrated, therefore not
k
necessary here!
Possibility of faults, essentially the same as 1) to 4)
© Siemens AG 2012 All Rights Reserved
05.01
PMxx
PMxx
2U1
1U1
2V1
1V1
2W1
1W1
3)
L1 L2 L3
PMxx
PMxx
2U1
1U1
2V1
1V1
2W1
1W1
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