Connecting The Power Cables; Connection Diagram - ABB ACS355 User Manual

Connecting the power cables

Connection diagram

For alternatives,
see section
Selecting the
supply
disconnecting
device
(disconnecting
means) on page
37.
1)
Ground the other end of the PE conductor at the distribution board.
2)
Use a separate grounding cable if the conductivity of the cable shield is insufficient (smaller
than the conductivity of the phase conductor) and there is no symmetrically constructed
grounding conductor in the cable. See section
3)
For more information on Common DC, see ACS355 Common DC application guide
(3AUA0000070130 [EN]).
Note:
Do not use an asymmetrically constructed motor cable.
If there is a symmetrically constructed grounding conductor in the motor cable in addition to
the conductive shield, connect the grounding conductor to the grounding terminal at the drive
and motor ends.
Route the motor cable, input power cable and control cables separately. For more
information, see section
Grounding of the motor cable shield at the motor end
For minimum radio frequency interference:
•
ground the cable by twisting the shield as follows:
flattened width > 1/5 · length
•
or ground the cable shield 360 degrees at the lead-
through of the motor terminal box.
INPUT
PE U1 V1 W1
1)
PE
L1 L2 L3
Routing the cables
Electrical installation 49
Drive
BRK+ BRK-
Optional brake
resistor or
3)
Common DC
Selecting the power cables
on page 41.
OUTPUT
U2 V2 W2
2)
V1
U1 W1
3 ~
Motor
on page 38.
b > 1/5 · a
a b