Cable Connections - ABB ACS 400 User Manual

I Cable Connections
Table 4 Cable
Terminal Description
U1, V1, W1 3~ power supply input
PE Protective Ground
U2, V2, W2 Power output to motor
Uc+, Uc− DC bus
X1 1 to 16 Control Wiring
X1 17 to 22 Control Wiring
X3 RS485 Communications
Follow local codes for cable size. To avoid electromagnetic interference, use separate conduits for
input power wiring, motor wiring, control and communications wiring, and braking unit wiring. Keep
these four classes of wiring separated in situations where the wiring is not enclosed in conduit. Also
keep 115VAC control wiring separated from low voltage control wiring and power wiring.
Use shielded cable for control wiring.
Use 60 °C rated power cable (75 °C if ambient temperature exceeds 45 °C/113 °F).
Refer to Section S Specifications for current, ratings, fuse recommendations and the maximum wire
size capacities and tightening torques for the terminals. The ACS 400 is suitable for use on a circuit
capable of delivering not more than 65,000 RMS symmetrical amperes, 480 V maximum. The
ACS 400 has an electronic motor protection feature that complies with the requirements of the
National Electric Code (USA). When this feature is selected and properly adjusted, additional
overload protection is not required unless more than one motor is connected to the drive or unless
additional protection is required by applicable safety regulations. See parameters 3004, 3005, and
3006.
Note! For CE installation requirements, see ABB publication CE-US-02 "CE Council
Directives and Variable Speed Drives." Contact your local ABB representative for
specific IEC installation instructions.
ACS 400 User's Manual
Note
Do not use 1~ supply!
Follow local rules for cable size.
See S.
For optional ACS-BRK braking unit.
Low voltage control – use shielded cable
Low voltage or 115VAC
Use shielded cable
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