Low Voltage AC Drives
Quick Start Guide
ACS550-01 Drives (0.75
The installation of the ACS550 adjustable
speed AC drive follows the outline below.
PREPARE for installation
UNPACK the drive
PREPARE mounting location
REMOVE the front cover
MOUNT the drive
RE-INSTALL the cover
This guide provides a quick reference for
installing ACS550-01 drives having a standard
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.
• 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.
Screwdrivers, wire stripper, tape measure,
mounting screws or bolts, and drill.
3~ 380...480 V
8.8 A / 6.9 A
4 / 3 kW
Use the following chart to interpret the type
code found on the drive label.
AC, Standard Drive – 550 series
Construction (region specific)
01 = Setup/parts for IEC instal./compliance
U1 = Setup/parts for US instal./compliance
Output current rating
See Ratings chart in User's Manual for details
2 = 208...240 VAC
4 = 380...480 VAC
Enclosure protection class
No specification = IP 21 / UL type 1 / NEMA 1
B056 = IP 54 / UL type 12 / NEMA 12
Collect Motor Data
Collect the following data from the motor
nameplate plate for later use in the ACS550
• Voltage __________________________
• Nominal motor current ______________
• Nominal frequency _________________
• Nominal speed ____________________
• Nominal power ____________________
Unpack the Drive
Note! Lift ACS550 by its chassis and not by its
1. Unpack the drive.
2. Check for any damage.
3. Check the contents against the order / shipping
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
2. Loosen the
at the top.
3. Pull near the
top to remove
Mount the Drive
1. Position the ACS550 and
use screws or bolts to
securely tighten all four
2. Attach a warning sticker
in the appropriate
language on the inside
Install the Wiring
1. Open the appropriate
knockouts in the gland
2. Install the cable clamps for
the power/motor cables.
3. On the input power cable,
strip the sheathing back far enough to route
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
7. Connect the pig-tail
created from the motor
8. Install conduit/gland
box and tighten the
Warning! For floating networks remove
screws at EM1 and EM3 on Frame sizes
Frame Size R1...R4
Power Output to Motor
(U1, V1, W1)
(U2, V2, W2)
BRK+, BRK- Brake resistor
UDC+, UDC- • Braking unit
• Chopper and resistor