ABB ACS550-01 Quick Start Manual Download Page 1

Drive

IT

 Low Voltage AC Drives

Quick Start Guide

ACS550-01 Drives (0.75

90 kW)

Overview

The installation of the ACS550 adjustable 
speed AC drive follows the outline below.

Application

This guide provides a quick reference for 
installing ACS550-01 drives having a standard 
enclosure.

Note!

This guide does not provide detailed 
installation, safety or operational 
instructions. See the ACS550 User’s 
Manual for complete information.

Prepare for Installation

Warning!

 The ACS550 should ONLY be 

installed by a qualified electrician.

Check 

• Motor compatibility – Motor type, nominal 

current, frequency, and voltage range must 
match drive specifications.

• Suitable environment – Drive requires 

heated, indoor controlled environment that is 
suitable for the selected enclosure. 

• Wiring – Follow local codes for wiring, circuit 

protection, and EMC requirements.

Refer to User’s manual and confirm that all 
preparations are complete.

Tools Required

Screwdrivers, wire stripper, tape measure, 
mounting screws or bolts, and drill.

Drive Identification

Use the following chart to interpret the type 
code found on the drive label.

Collect Motor Data

Collect the following data from the motor 
nameplate plate for later use in the ACS550 
startup:
• Voltage __________________________
• Nominal motor current ______________
• Nominal frequency _________________
• Nominal speed ____________________
• Nominal power ____________________

Unpack

 

the Drive

Note!

  Lift ACS550 by its chassis and not by its 

cover.

 1. Unpack the drive.
 2. Check for any damage. 
 3. Check the contents against the order / shipping 

label.

Prepare the Mounting Location

The drive requires a 
smooth, vertical, solid 
surface, free from heat and 
moisture, with free space 
for air flow – 200 mm (8 in) 
above and below, and 
25 mm (1 in) around the 
sides of the drive.

 1. Mark the mounting points.
 2. Drill the mounting holes.

Remove the Front Cover

 1. Remove the 

control panel, 
if attached.

 2. Loosen the 

captive screw 
at the top.

 3. Pull near the 

top to remove 
the cover.

Mount the Drive

 1. Position the ACS550 and 

use screws or bolts to 
securely tighten all four 
corners.

 2. Attach a warning sticker 

in the appropriate 
language on the inside 
plastic shell. 

Install the Wiring

Wiring Power

 1. Open the appropriate 

knockouts in the gland 
box.

 2. Install the cable clamps for 

the power/motor cables.

 3. On the input power cable, 

strip the sheathing back far enough to route 
individual wires.

 4. On the motor cable, 

strip the sheathing 
back far enough to 
expose the copper 
wire screen so that 
the screen can be 
twisted into a pig-
tail. Keep the short 
pig-tail short to 
minimize noise radiation.

 5. Route both cables through the clamps.
 6. Strip and connect the power/motor wires, and 

the power ground wire to the drive terminals. 
See below, or “Power Connections” in User’s 
Manual.

 7. Connect the pig-tail 

created from the motor 
cable screen.

 8. Install conduit/gland 

box and tighten the 
cable clamps. 

Warning!

 For floating networks remove 

screws at EM1 and EM3 on Frame sizes 
R1…R4.

Task

PREPARE

 for installation

UNPACK

 the drive

PREPARE

 mounting location

REMOVE 

the front cover

MOUNT 

the drive

INSTALL

 wiring

CHECK

 installation

RE-INSTALL

 the cover

APPLY 

power

START-UP

 

Ser. no.

ACS550-01-08A8-4

*2030700001*

U

1

           

3~ 380...480 V

I

2N

 / I

2hd

  

8.8 A / 6.9 A

P

N

/P

hd

  

  4 / 3 kW

ACS550-01-08A8-4+... 

AC, Standard Drive – 550 series

See Ratings chart in User’s Manual for details 

4 = 380…480 VAC

U1 = Setup/parts for US instal./compliance

2 = 208…240 VAC

Construction (region specific)

Output current rating 

Voltage rating

01 = Setup/parts for IEC instal./compliance

Enclosure protection class

No specification = IP 21 / UL type 1 / NEMA 1 
B056 = IP 54 / UL type 12 / NEMA 12 

X0002

1

3

IP2000

1

2

IP2002

1

2

1

2

X0004

6

3

IP2001

6

7

4

8

X0005

8

X0033

GND

Power Output to Motor

EM3

PE

(U2, V2, W2)

Optional Braking

Frame 

Size

Terminal 

Labels

Brake Options

R1, R2 BRK+, BRK- Brake resistor
R3, R4 UDC+, UDC- • Braking unit 

• Chopper and resistor

Power Input

(U1, V1, W1)

EM1

Frame Size R1…R4

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