ABB ACH550-UH HVAC User manual

ACH550-UH User’s Manual 1-1
ACH550-UH HVAC Drives
1…550 HP
User’s Manual
ACH550-UH_UM (3AUA0000004092) Rev I
EN
EFFECTIVE: 2010-04-01
SUPERSEDES: ACH550-UH_UM (3AUA0000004092) Rev H 2008-04-01
2010 ABB. All Rights Reserved.

ACH550-UH User’s Manual 1-3
Safety
Safety
Use of warnings and notes
There are two types of safety instructions throughout this manual:
• Notes draw attention to a particular condition or fact, or give information on a
subject.
• Warnings caution you about conditions which can result in serious injury or death
and/or damage to the equipment. They also tell you how to avoid the danger. The
warning symbols are used as follows:
Electricity warning warns of hazards from electricity which can cause physical
injury and/or damage to the equipment.
General warning warns about conditions, other than those caused by electricity,
which can result in physical injury and/or damage to the equipment.
WARNING! The ACH550 adjustable speed AC drive should ONLY be installed by a
qualified electrician.
WARNING! Even when the motor is stopped, dangerous voltage is present at the
power circuit terminals U1, V1, W1 (L1, L2, L3) and U2, V2, W2 (T1, T2 T3) and,
depending on the frame size, UDC+ and UDC-, or BRK+ and BRK-.
WARNING! Dangerous voltage is present when input power is connected. After
disconnecting the supply, wait at least 5 minutes (to let the intermediate circuit
capacitors discharge) before removing the cover.
WARNING! Even when power is switched off from the input terminals of the
ACH550, there may be dangerous voltage (from external sources) on the terminals
of the relay outputs.
WARNING! When the control terminals of two or more drives are connected in
parallel, the auxiliary voltage for these control connections must be taken from a
single source which can either be one of the drives or an external supply.

1-4 ACH550-UH User’s Manual
Safety
WARNING! Disconnect the internal EMC filter when installing the drive on an IT
system (an ungrounded power system or a high-resistance-grounded [over 30 ohm]
power system).
WARNING! Do not attempt to install or remove EM1, EM3, F1 or F2 screws while
power is applied to the drive’s input terminals.
WARNING! Do not control the motor with the disconnecting device (disconnecting
means); instead, use the control panel keys or commands via the I/O board of the
drive. The maximum allowed number of charging cycles of the DC capacitors (i.e.
power-ups by applying power) is five in ten minutes.
WARNING! Never attempt to repair a malfunctioning ACH550; contact the factory or
your local Authorized Service Center for repair or replacement.
WARNING! The ACH550 will start up automatically after an input voltage
interruption if the external run command is on.
WARNING! The heat sink may reach a high temperature.
Note: For more technical information, contact the factory or your local ABB
representative.

ACH550-UH User’s Manual 1-5
Table of contents
Safety
Use of warnings and notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Table of contents
Installation
Installation flow chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Preparing for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Installing the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Control panel
HVAC control panel features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
HVAC control panel modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
Start-up
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-47
Application macros
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-49
HVAC Default macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-51
Supply Fan macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-52
Return Fan macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53
Cooling Tower Fan macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-54
Condenser macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-55
Booster Pump macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-56
Pump Alternation macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-57
Internal Timer macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-58
Internal Timer with Constant Speeds / PRV macro . . . . . . . . . . . . . . . . . . . 1-59
Floating Point macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-60
Dual Setpoint with PID macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-61
Dual Setpoint with PID and Constant Speeds . . . . . . . . . . . . . . . . . . . . . . . 1-62
E-bypass macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-63
Hand Control macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-64
E-Clipse macro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-65
Parameters
Complete parameter list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-67
Complete parameter descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-80
Table of contents

1-6 ACH550-UH User’s Manual
Table of contents
Embedded fieldbus
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-187
Mechanical and electrical installation – EFB . . . . . . . . . . . . . . . . . . . . . . . 1-189
Communication setup – EFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-191
Activate drive control functions – EFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-195
Feedback from the drive – EFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-200
Diagnostics – EFB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-202
N2 protocol technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-207
FLN protocol technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-215
BACnet protocol technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-229
Modbus protocol technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-241
ABB control profiles technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-249
Fieldbus adapter
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-261
Mechanical and electrical installation – FBA . . . . . . . . . . . . . . . . . . . . . . . 1-264
Communication setup – FBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-265
Activate drive control functions – FBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-265
Feedback from the drive – FBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-268
Diagnostics – FBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-269
ABB drives profile technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-271
Generic profile technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-279
Diagnostics
Diagnostic displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-281
Correcting faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-282
Correcting alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-288
Maintenance
Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-291
Heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-291
Drive module fan replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-292
Enclosure fan replacement – UL Type 12 enclosures . . . . . . . . . . . . . . . . 1-293
Enclosure air filter replacement – UL Type 12 enclosures . . . . . . . . . . . . . 1-295
Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-298
Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-298

ACH550-UH User’s Manual 1-7
Table of contents
Technical data
Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-299
Input power connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-303
Motor connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-311
Control connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-317
Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-320
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-320
Dimensions and weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-322
Degrees of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-327
Ambient conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-328
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-329
Applicable standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-330
Liability limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-332
Index

1-8 ACH550-UH User’s Manual
Table of contents

ACH550-UH User’s Manual 1-9
Installation
Installation
Study these installation instructions carefully before proceeding. Failure to observe
the warnings and instructions may cause a malfunction or personal hazard.
WARNING! Before you begin read Safety on page 1-3.
Installation flow chart
The installation of the ACH550 adjustable speed AC drive follows the outline below.
The steps must be carried out in the order shown. At the right of each step are
references to the detailed information needed for the correct installation of the unit.
Task See
PREPARE for installation Preparing for installation on page 1-10.
PREPARE the mounting location Prepare the mounting location on page 1-14.
REMOVE the front cover Remove front cover on page 1-16.
MOUNT the drive Mount the drive on page 1-17.
INSTALL wiring Wiring overview on page 1-18 and
Install the wiring on page 1-23.
CHECK installation Check installation on page 1-27.
REINSTALL the cover Re-install cover on page 1-27.
APPLY power Apply power on page 1-29.
START-UP Start-up on page 1-30.

1-10 ACH550-UH User’s Manual
Installation
Preparing for installation
Lifting the drive
R1…R6
Lift the drive only by the metal chassis.
R7…R8
WARNING! Handle and ship floor mounted enclosures
only in the upright position. These units are not designed
to be laid on their backs.
1. Use a pallet truck to move the transport package/
enclosure to the installation site.
2. Remove the cabinet side panels for access to the
cabinet/pallet mounting bolts. (6 torx screws hold each
cabinet side panel in place. Leave the side panels off
until later.)
3. Remove the 4 bolts that secure the cabinet to the
shipping pallet.
WARNING! Use the lifting lugs/bars at the top of the unit
to lift R7/R8 drives.
4. Use a hoist to lift the drive. (Do not place drive in final
position until mounting site is prepared.)
Unpack the drive
1. Unpack the drive.
2. Check for any damage and notify the shipper
immediately if damaged components are found.
3. Check the contents against the order and the shipping
label to verify that all parts have been received.
IP2040
PC00005
R70010
2
PC00003
30o

ACH550-UH User’s Manual 1-11
Installation
Drive identification
Drive labels
To determine the type of drive you are installing, refer to either:
• Serial number label attached on upper part of
the chokeplate between the mounting holes.
• Type code label attached on the heat sink – on
the side of the enclosure.
Type code
Use the following chart to interpret the type code found on either label.
Ratings and frame size
The chart in section Ratings on page 1-299 lists technical specifications, and
identifies the drive’s frame size. To read the Ratings table, you need the “Output
current rating” entry from the type code (see above). Also, when using the Ratings
tables, note that there are different tables for each drive “Voltage rating”.
S/N
ACH550-UH-059A-2
2030700001
SW:
V.2.06B
2030700001
Input
Voltage (U1)
Current (I1n)
3 PH 48…63 Hz
200…240 Vac
59.4 A
1 PH 4…63 Hz
200…240 Vac
59.4 A
Output
Voltage (U2)
Current (I2n)
3 PH 0…500 Hz
0…U1 Vac
59.4 A
3 PH 0…500 Hz
0…U1 Vac
28 A
ACH550-UH-059A-2
Power (Pn)
Mfg. Date: 01-December-2005 Org. Firmware: V.2.06B
ABB Inc.
Made in USA of foreign parts
10 HP20 HP
kAIC
S/N 2030700001
AC, HVAC Drive – 550 product series
Construction (region specific)
UH = Setup and parts specific to US installation and NEMA compliance
Output current rating
e.g. 08A8 = 8.8A See section Ratings for details on page 1-299
Voltage rating
2 = 208…240 VAC
4 = 380…480 VAC
6 = 500…600 VAC
Enclosure protection class
No specification = UL type 1 / NEMA 1 / IP 21
+B055 = UL type 12 / NEMA 12 / IP 54
Fieldbus Adapter
+K451 = DeviceNet Adapter +K462 = ControlNet Adapter
+K452 = LonWorks Adapter +K466 = EtherNet Adapter
+K454 = Profibus Adapter
I/O Options
+L511 = Relay Output Extension
+L512 = 115/230 V Digital Input Interface
ACH550-UH-08A8-4+...

1-12 ACH550-UH User’s Manual
Installation
Motor compatibility
The motor, drive, and supply power must be compatible:
Tools required
To install the ACH550 you need the following:
• Screwdrivers (as appropriate for the mounting hardware used)
• Wire stripper
• Tape measure
•Drill
• Frame sizes R5…R8 with UL type 12 enclosure: Punch for conduit mounting
holes
• Frame sizes R7/R8: pallet truck and hoist
• For installations involving frame size R6…R8: The appropriate crimping tool for
power cable lugs. See Power terminal considerations – R6 Frame size.
• Mounting hardware: screws or nuts and bolts, four each. The type of hardware
depends on the mounting surface and the frame size:
• For installations involving frame size R7…R8: Hoist.
Motor
Specification Verify Reference
Motor type 3-phase induction motor –
Nominal current Motor value is within this
range: 0.15…1.5 * I2N
(I2N = normal use current)
• Type code label on drive, entry for Output I2N,
or
• Type code on drive and rating table in
Technical data on page 1-299.
Nominal frequency 10…500 Hz –
Voltage range Motor is compatible with
the ACH550 voltage range. 208…240 V (for ACH550-xx-xxxx-2) or 380…480 V (for ACH550-xx-xxxx-4)
500…600 V (for ACH550-xx-xxxx-6)
Insulation 500…600 V drives: Either
the motor complies with
NEMA MG1 Part 31, or a
du/dt filter is used between
the motor and drive.
For ACH550-xx-xxxx-6
Frame Size Mounting Hardware Note
R1…R4 M5 #10
R5 M6 1/4 in
R6 M8 5/16 in
R7…R8 M10 7/16 Secures free standing cabinets if required.

ACH550-UH User’s Manual 1-13
Installation
Suitable environment and enclosure
Confirm that the site meets the environmental requirements. To prevent damage
prior to installation, store and transport the drive according to the environmental
requirements specified for storage and transportation. See Ambient conditions on
page 1-328.
Confirm that the enclosure is appropriate, based on the site contamination level:
• UL type 1 enclosure. The site must be free of airborne dust, corrosive gases or
liquids, and conductive contaminants such as condensation, carbon dust, and
metallic particles.
• UL type 12 enclosure. This enclosure provides protection from airborne dust and
light sprays or splashing water from all directions.
Suitable mounting location
Confirm that the mounting location meets the following constraints:
• R1…R6: The drive must be mounted vertically on a smooth, solid surface, and in
a suitable environment as defined above.
• The drive must be located in a suitable environment as defined above.
• The minimum space requirements for the drive are the outside dimensions (see
Outside dimensions – R1…R6 on page 1-325 or Outside dimensions – R7…R8
on page 1-326), plus air flow space around the unit (see Cooling on page 1-320).
• The distance between the motor and the drive is limited by the maximum motor
cable length. See either Motor connection specifications on page 1-311, or
EN 61800-3 compliant motor cables on page 1-314.
• The mounting site must support the drive’s weight. See Weight on page 1-324.
Installing the drive
WARNING! Before installing the ACH550, ensure the input power supply to the drive
is off.
WARNING! Metal shavings or debris in the enclosure can damage electrical
equipment and create a hazardous condition. Where parts, such as conduit plates
require cutting or drilling, first remove the part. If that is not practical, cover nearby
electrical components to protect them from all shavings or debris.

1-14 ACH550-UH User’s Manual
Installation
For flange mounting (mounting the drive in a cooling air duct), see the appropriate
Flange Mounting Instructions:
Prepare the mounting location
The ACH550 should only be mounted where all of the
requirements defined in Preparing for installation on
page 1-10 are met.
1. Mark the position of the mounting holes.
Note: Frame sizes R3 and R4 have four holes along the top. Use only two. If
possible, use the two outside holes (to allow room to remove the fan for
maintenance).
Note: ACH400 drives can be replaced using the original mounting holes. For R1 and
R2 frame sizes, the mounting holes are identical. For R3 and R4 frame sizes, the
inside mounting holes on the top of ACH550 drives match ACH400 mounts.
Frame size IP21 / UL type 1 IP54 / UL type 12
Kit Code (English) Kit Code (English)
R1 FMK-A-R1 100000982 FMK-B-R1 100000990
R2 FMK-A-R2 100000984 FMK-B-R2 100000992
R3 FMK-A-R3 100000986 FMK-B-R3 100000994
R4 FMK-A-R4 100000988 FMK-B-R4 100000996
R5 AC8-FLNGMT-R5 ACS800-PNTG01U-EN - -
R6 AC8-FLNGMT-R6 - -
X0002
1

ACH550-UH User’s Manual 1-15
Installation
Note: Frame sizes R7 and R8 have
mounting holes inside the enclosure base.
See Mounting dimensions on page 1-323.
Where it is not possible to use either
mounting hole at the back of the base, use
an L-bracket at the top of the enclosure to
secure the cabinet to a wall or to the back of
another enclosure. Bolt the L-bracket to the
enclosure using the lifting lug bolt hole on
the top of the enclosure.
2. Drill holes of appropriate size in the
mounting location.
PC00023
Fastening points when installed
back against a wall (Top view)
Fastening points when installed
back against back
Cabinet top
M12 bolt (1/2 to 9/16 in)
L-bracket
Fastening the cabinet at the top
using L-brackets (side view)

1-16 ACH550-UH User’s Manual
Installation
Remove front cover
R1…R6, UL type 1
1. Remove the control panel, if attached.
2. Loosen the captive screw at the top.
3. Pull near the top to remove the cover.
R1…R6, UL type 12
1. If hood is present: Remove screws (2) holding
the hood in place.
2. If hood is present: Slide hood up and off of the
cover.
3. Loosen the captive screws around the edge of
the cover.
4. Remove the cover.
R7…R8, Cabinet Door
1. To open the cabinet door, loosen the quarter-
turn screws that hold the cabinet door closed.
R7…R8, Side Panels
The side panels were removed to take the
cabinet off the pallet. Installation access is
easier if these panels are kept off throughout
the installation.
3
IP2000
1
2
3
4
1
2
FM
1
R70020

ACH550-UH User’s Manual 1-17
Installation
Mount the drive
R1…R6, UL type 1
1. Position the ACH550 onto the mounting screws
or bolts and securely tighten in all four corners.
Note: Lift the ACH550 by its metal chassis.
2. Non-English speaking locations: Add a warning
sticker in the appropriate language over the
existing warning on the top of the module.
R1…R6, UL type 12
For the UL type 12 enclosures, rubber plugs are required in the holes provided for
access to the drive mounting slots.
1. As required for access, remove the rubber plugs.
Push plugs out from the back of the drive.
2. R5 & R6: Align the sheet metal hood (not shown)
in front of the drive’s top mounting holes. (Attach
as part of next step.)
3. Position the ACH550 onto the mounting screws
or bolts and securely tighten in all four corners.
Note: Lift the ACH550 by its metal chassis
(frame size R6 by the lifting holes on both sides
at the top).
4. Re-install the rubber plugs.
5. Non-English speaking locations: Add a warning sticker in the appropriate language
over the existing warning on the top of the module.
R7…R8
1. Use a hoist to move the cabinet into position.
Note: If the cabinet location does not provide access to
the cabinet sides, be sure to re-mount side panels before
positioning cabinet.
2. Install and tighten mounting bolts.
IP2002
1
2
2
1, 3
FM
PC00003
30o

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 drive)
– 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 1-309.
• For corner grounded TN systems, see section Unsymmetrically grounded
networks on page 1-307.
• For IT systems, see section Floating networks on page 1-308.
• For frame size R6, see Power terminal considerations – R6 Frame size on page
1-309 to install the appropriate cable lugs.
Terminal Description Specifications and Notes
U1, V1, W1* 3-phase power supply input Input power connections on page 1-303.
PE Protective Ground Ground connections on page 1-307.
U2, V2, W2 Power output to motor Motor connections on page 1-311.
* 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.

ACH550-UH User’s Manual 1-19
Installation
• For details on control connections, refer to the following sections:
–Drive’s control connection terminals on page 1-318.
–Control connections on page 1-317.
–Application macros starting on page 1-49.
–Complete parameter descriptions on page 1-80.
–Embedded fieldbus on page 1-187.
–Fieldbus adapter on page 1-261.
• For electro-magnetic compliance (EMC), follow local codes and the requirements
in Motor cable requirements for CE & C-Tick compliance on page 1-313. For
example:
– Properly ground the wire screen cable shields.
– Keep individual un-screened wires between the cable clamps and the screw
terminals as short as possible.
– Route control cables away from power cables.

1-20 ACH550-UH User’s Manual
Installation
Connection diagrams
The following diagrams show:
• The terminal layout for frame size R3, which, in general, applies to frame sizes
R1…R6, except for the R5/R6 power and ground terminals.
• The R5/R6 power and ground terminals.
• The terminal layout for R7/R8.
WARNING! To avoid danger, or damage to the drive, on IT systems and corner
grounded TN systems, see section Disconnecting the internal EMC filter on
page 1-22.
Panel Connector
Power LED (Green)
Fault LED (Red)
Optional Module 1
X1 – Communications
Optional Module 2
GND
Power Output to Motor
Power Input
EM1
X1 – Analog Inputs and Outputs
X1 – Digital Inputs
X1 – Relay Outputs
(and 10 V Ref. Voltage Output)
(and 24 V Aux. Voltage Output)
EM3
PE
(U1, V1, W1) (U2, V2, W2)
X0003
(RS485)
R5/R6 differ.
See next page.
Frame Sizes
R1…R4 (Diagram shows the R3 frame.)
J2 – DIP Switches
J2
ON
off position on position
for RS485 Termination
J2
ON
Terminals Not Used
J1 – DIP Switches for Analog Inputs
AI1: (in Voltage Position)
AI2: (in Current Position)
ON
ON
The switch is one of two types:
Alternate
Original
Illustration of available switch
positions; not default settings
Illustration of available switch
positions; not default settings