8
05.01
8.15 Examples of correctly and incorrectly connecting NE
8-315
© Siemens AG 2008 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 05/2008 Edition
L1
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
n.c.
n.c.
n.c.
n.c.
Incorrect!
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
n.c.
n.c.
n.c.
n.c.
Incorrect!
L
K
5)
Filter (X kW)
PE
L2
L3
L1
L
K
5)
Filter (X kW)
PE
L2
L3
L1 L2 L3
Consequences when incorrectly connected to the
line supply:
1)/2) Connected in front of the reactor (choke):
Burnt PC board tracks/connectors
3) Another connection to the line supply in front of
the reactor (choke):
Defective DC link electrolytic capacitors
The following burn:
– Connector in the power supply
– Rectifier diodes
– Pre–charging de–coupling, diodes
1)
2)
3)
4)
4) Short–circuit due to phase interchange with
jumper X181 ––> the following will burn:
PC board tracks of the internal power supply
Varistor module at X181
Connector in the power supply
Schematic diagram
Three–conductor connection
to the line supply
5) Note:
L
k
for 5 kW and 10 kW integrated, therefore not
necessary here!
Possibility of faults, essentially the same as 1) to 4)
NE
NE
F
N
(X A)
F
N
(X A)
MM
MM
Twisted
cable
Twisted
cable
Fig. 8-33 Examples of three–conductor connection to the line supply that are absolutely prohibited
8 Im
ortant Circuit Information
To Next Page
Loading...
