Connection Procedure - ABB ACS355 series User Manual

52 Electrical installation


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 grounding clamp. Connect the phase conductors to
the U1, V1 and W1 terminals. Use a tightening torque of 0.8 N·m (7 lbf·in) for
frame sizes R0...R2, 1.7 N·m (15 lbf·in) for R3 and 2.5 N·m (22 lbf·in) for R4.
3. Strip the input power cable. Ground the bare shield of the cable (if any) 360
degrees under the grounding clamp. Twist the shield to form as short a pigtail as
possible. Fasten the twisted shield under the grounding clamp. Connect the
phase conductors to the U2, V2 and W2 terminals. Use a tightening torque of
0.8 N·m (7 lbf·in) for frame sizes R0...R2, 1.7 N·m (15 lbf·in) for R3 and 2.5 N·m
(22 lbf·in) for R4.
2. Connect the optional brake resistor to the BRK+ and BRK- terminals with a
shielded cable using the same procedure as for the motor cable in the previous
step.
3. Secure the cables outside the drive mechanically.
1 3 2
1 2