Guide for Capacitor Reforming in ACS50, ACS55,
ACS150, ACS310, ACS320, ACS350, ACS550 and
ACH550
3AFE68735190 (English)
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ACH550-PCR/PDR User’s Manual3-1
ACH550-PCR/PDR Packaged Drives
with Disconnect
1…550 HP
User’s Manual
2012 ABB. All Rights Reserved.
ACH550-PCR/PDR User’s Manual3-3
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.
Safety
3-4ACH550-PCR/PDR User’s Manual
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
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 3-3.
WARNING! When the ACH550 with Input Disconnect is connected to the line power,
the Motor Terminals T1, T2, and T3 are live even if the motor is not running. Do not
make any connections when the ACH550 with Input Disconnect is connected to the
line. Disconnect and lock out power to the drive before servicing the drive. Failure to
disconnect power may cause serious injury or death.
Application
This manual contains supplemental information that is unique to ACH550 input
disconnect configurations (PCR or PDR). Refer to the base manual, ACH550-UH
HVAC User’s Manual (1…550 HP) on page 1-1, for all other information.
Input disconnect features and functions
The ACH550 with Input Disconnect is an ACH550 AC adjustable frequency drive
packaged with an input disconnect switch or circuit breaker, and with a door
mounted, external operating handle. The operating handle can be padlocked in the
OFF position (padlock not supplied). Enclosure options are UL Type 1, UL Type 12,
and UL Type 3R (NEMA 1, NEMA 12, and NEMA 3R).
The following is a typical power diagram.
Installation
3-8ACH550-PCR/PDR User’s Manual
Operating Handle
ACH550 Drive
for Disconnect Switch
or Circuit Breaker
UL Type / NEMA 1 & 12UL Type / NEMA 1 & 12UL Type / NEMA 1 & 12
Floor Mount
UL Type / NEMA 3R
Enclosures
Control Panel
Vertical Construction
Enclosures
Hinged Door Wall Mount
Enclosures
Enclosures
ACH550 Drive
Control Panel with
Hinged Cover
The following shows the front view of the ACH550 Drive with Input Disconnect
standard configurations, and identifies the major components.
Installation
ACH550-PCR/PDR User’s Manual3-9
Installation flow chart
The installation of Input Disconnect configurations for ACH550 drives 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.
Note: References in the middle column below are to the ACH550-UH User’s
Manual. References in the third column below are to this manual.
Refer to the ACH550-UH
Task
PREPARE for
installation
PREPARE the mounting
location
REMOVE the front coverRemove front cover--
MOUNT the driveMount the drive --
INSTALL wiringWiring overview and
User’s Manual Installation
section
Preparing for installation •Drive identification on page 3-10.
Prepare the mounting
location
Install the wiring
Additional Reference in this
Manual
• Note: Some instructions in this
document vary, depending on
the drive’s frame size. To read
the Ratings table, you need the
“Output current rating” entry from
the Type code (see page 3-10).
Also see Suitable mounting
location on page 3-11.
--
Installing the wiring (supplement to
ACH550-UH User’s Manual) on
page 3-11.
CHECK installationCheck installation--
RE-INSTALL the coverRe-install cover--
APPLY powerApply power--
START-UPStart-up--
Installation
3-10ACH550-PCR/PDR User’s Manual
Preparing for installation (supplement to ACH550-UH User’s Manual)
Drive identification
Drive label
To identify the type of device you are installing, refer to the type code number on the device
identification label.
•Wall mounting base drives – label attached on the side surface of the heat sink.
•Packaged drive with screw cover – label attached to outside surface on the left side of enclosure.
•Enclosure with hinged cover/door – label on inside surface of the cover/door.
Type code
Use the following to interpret the type code found on the identification label.
ACH550-UH-015A-4 +…+…
AC, HVAC Drive = 550 Product Series
Construction
UH = Base Drive
BCR = E-Clipse Bypass with circuit breaker
BDR = E-Clipse Bypass with disconnect switch
CC = Classic Bypass with circuit breaker
CD = Classic Bypass with disconnect switch
PCR = Drive with circuit breaker
PDR = Drive with disconnect switch
VCR = Vertical bypass with circuit breaker
VDR = Vertical bypass with disconnect switch
Output current rating (See ratings chart for details)
Vol tage rati ng
2 = 208…240 VAC
4 = 380…480 VAC
6 = 500…600 VAC
Enclosure protection class
No specification = UL Type 1/NEMA 1
+B055 = UL Type 12/NEMA 12
+B058 = UL Type 3R/NEMA 3R
Power options
+E213 = Line reactor
+F267 = Service switch
Input/Output option modules
+L511 = Relay output extension
+L512 = 115/230 V digital input interface