Operating instructions

Connection
3.3 Mounting Power Modules
CU240S and CU240E Control Units, FW 3.2
38 Operating Instructions, 03/2009, A5E02440075B AA
Connecting-up Power Modules
Line supply connection Motor connection Connect the braking resistor
Connect the line supply to terminals
U1/L1, V1/L2 and W1/L3.
Connect the protective conductor of the
line supply to terminal PE of the
inverter.
Power Modules without an integrated
line filter can be connected to grounded
(TN, TT) and non-grounded (IT) line
supply systems. Power Modules with
an integrated class A line filter are only
suitable for TN supply systems.
Connect the motor at terminals U2, V2,
and W2.
Connect the protective conductor of the
motor to the terminal
of the inverter.
The following cable lengths are
permissible:
• Unshielded
100 m
• Shielded,
50 m for inverters without filter
25 m for inverters with filter
Additional information is provided in
Catalog D11.1 for longer cable lengths
A braking resistor can be connecting at
terminals DCP/R1 and R2.
Do not ground the braking resistor at
the inverter, but directly at your
grounding bar.
L
U1
L1
N
V1
L2
W1
L3
DCP
R1
U2 V2 W2 R2
PE
FSA FSB FSC FSD FSE FSF FSGX
Power 0.37 kW …
1.5 kW
2.2 kW …
4 kW
7.5 kW …
15 kW
18.5 kW …
30 kW
37 kW …
45 kW
55 kW …
132 kW
160 kW …
250 kW
Connection
cross-section
1 mm² …
2.5 mm²
1.5 mm² …
6 mm²
4 mm² …
10 mm²
10 mm² …
35 mm²
10 mm² …
35 mm²
35 mm² …
120 mm²
95 mm² …
2 x 240 mm²
Torque 1.1 Nm 1.5 Nm 2.25 Nm 6 Nm 6 Nm 13 Nm 14 Nm