ABB ACS355 series, Manual

Page: 20 / 78

20 Quick start-up
Mechanical installation
In back mounting, fasten the inverter to the wall with screws using four mounting holes. In
side mounting with frame sizes R0…R2, fasten the inverter to the wall with screws using
three mounting holes. The inverter can also be mounted onto a DIN rail.
Fasten the clamping plate to the plate at the bottom of the inverter with the provided
screws. For frame sizes R0…R2, fasten the I/O clamping plate to the clamping plate with
the provided screws.

Free space requirements
Note :
•
When placing inverters on top of each other in the panel or cabinet, make sure that the
hot air from the inverters below do not enter directly to the inverter above.
•
The maximum ambient air temperature is 50°C (122°F) at the rated current. The
current is derated for 40 to 50°C (104 to 131°F).
Installing power cables

Connection diagram
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.
Frame size Free space required
Above Below On the sides
mm in mm in mm in
R0…R4 75 3 75 3 0 0
U2 V2 W2
INPUT
1)
Drive
OUTPUT
U1/L V1/N W1
Motor
3 ~
V1
U1 W1
PE
PE
L1/L L2/N
3)
L3
2)
BRK+BRK-
Optional brake
resistor or
Common DC
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.