1-18 ACH550-UH User’s Manual
Installation
Wiring overview
Conduit kit
Wiring R1…R6 drives with the UL type 1 Enclosure requires a conduit kit with the
following items:
• conduit box
•screws
• cover
The kit is included with UL type 1 Enclosures.
Wiring requirements
WARNING! Ensure the motor is compatible for use with the ACH550. The ACH550
must be installed by a competent person in accordance with the considerations
defined in Preparing for installation on page 1-10. If in doubt, contact your local ABB
sales or service office.
As you install the wiring, observe the following:
• There are two sets of wiring instructions – one set for each enclosure type (UL
type 1 and UL type 12). Be sure to select the appropriate procedure.
• For the power connection points on the drive see the Connection diagrams
section below.
• Use separate, metal conduit runs to keep these three classes of wiring apart:
– Input power wiring.
– Motor wiring. (Use a separate, metal conduit run for each motor)
– Control/communications wiring.
• When installing input power and motor wiring, refer to the following, as
appropriate:
• To locate input power and motor connection terminals, see Connection diagrams
starting on page 1-20. For specifications on power terminals, see Drive’s power
connection terminals on page 1-307.
• For corner grounded TN systems, see section Unsymmetrically grounded
networks on page 1-305.
• For IT systems, see section Floating networks on page 1-306.
• For frame size R6, see Power terminal considerations – R6 Frame size on page
1-307 to install the appropriate cable lugs.
Terminal Description Specifications and Notes
U1, V1, W1* 3-phase power supply input Input power connections on page 1-301.
PE Protective Ground Ground connections on page 1-305.
U2, V2, W2 Power output to motor Motor connections on page 1-309.
* The ACH550 -xx-xxxx-2 (208…240V series) can be used with a single phase supply, if output
current is derated by 50%. For single phase supply voltage connect power at U1 and W1.
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