Installing The Power Cables; Connection Diagram; Connection Procedure - ABB ACS355 Quick Installation Manual

4 Quick installation guide – ACS355

Installing the power cables

Connection diagram

INPUT
PE BRK+BRK-
U1/L V1/N W1
1)
PE
Optional brake
resistor or
Common DC
3)
L1/L L2/N L3
Supply disconnect-
ing device (discon-
necting means) with
fuses
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.
3)
In one-phase installations, connect the neutral cable here.
Note:
• Do not use an asymmetrically
constructed motor cable.
• Route the motor cable, input power
cable and control cables separately.
• Make sure that the maximum cable
lengths are not exceeded. For detailed
information, see the user's manual.

Connection procedure

1. Strip the input power cable. Ground the
bare shield of the cable (if any) 360
degrees under the grounding clamp.
Fasten the grounding conductor (PE)
of the input power cable under the
screw of the grounding clamp. Connect
the phase conductors to the U1, V1
and W1 terminals.
2. Strip the motor cable. Ground the bare
shield of the cable 360 degrees under
the grounding clamp. Twist the shield
to form as short a pigtail as possible
Drive
OUTPUT
U2 V2 W2
V1
U1 W1
3 ~
Motor
and fasten it under the screw of the
grounding clamp. Connect the phase
conductors to the U2, V2 and W2
terminals.
3. Connect the optional brake resistor to
the BRK+ and BRK- terminals with a
shielded cable using the same
2)
procedure as for the motor cable.
4. Secure the cables outside the drive
mechanically.
1
Frame size Tightening torque
N·m (lbf·in)
R0...R2
R3
R4
To identify the frame size of your drive, see
losses and frame sizes.
3 2
1 2
Max. wire size
0.8 (7) 4.0/6.0 mm
(10 AWG)
1.7 (15) 10.0/16.0 mm
(6 AWG)
2.5 (22) 25.0/35.0 mm
(2 AWG)
2
2
2
Fuses,