ABB ACS880-304LC Series User manual
—
ABB INDUSTRIAL DRIVES
ACS880-304LC…+A019 diode supply modules
Hardware manual
Table of contents
1 Introduction to the manual
11Contents of this chapter ........................................................................
11Applicability ........................................................................................
11Safety instructions ...............................................................................
11Target audience ...................................................................................
12Categorization by frame size and option code ............................................
12Use of component designations ..............................................................
12Terms and abbreviations .......................................................................
13Related documents ..............................................................................
13Multidrive module manuals .................................................................
2 Operation principle and hardware description
15Contents of this chapter ........................................................................
15Operation principle ..............................................................................
16Main circuit diagram .........................................................................
16Implementing DC voltage measurement ................................................
16Charging ........................................................................................
17DC overvoltage and undervoltage protection ..........................................
17Short-circuit protection .....................................................................
17Module temperature supervision ..........................................................
186-, 12- and 24-pulse supply units ...........................................................
19Overview diagrams ...............................................................................
19Overview diagram of a drive ................................................................
20Overview diagram – 1×D8D, 6-pulse, internal charging ...............................
21Overview diagram – 2×D8D, 6-pulse, internal charging ...............................
22Overview diagram – 2×D8D, 12-pulse, internal charging ..............................
23Overview diagram – 2×D8D, 6-pulse, external charging and pre-magnetizing ...
24Overview diagram – 2×D8D, 12-pulse, external charging and pre-magnetizing ..
25Hardware of the supply modules .............................................................
25Layout drawing of the D8D module .......................................................
26Overview of control connections of ZCU-14 control unit ................................
26Supply unit control devices .....................................................................
27Auxiliary voltage switch ......................................................................
27Operating switch ..............................................................................
27The control unit ................................................................................
27Control panel [A59] ...........................................................................
27PC connection .................................................................................
28Fieldbus control ...............................................................................
28Type designation label ..........................................................................
29Type designation key ............................................................................
3 Moving and unpacking the module
31Contents of this chapter ........................................................................
31Moving the module ...............................................................................
31Unpacking and examining the delivery ......................................................
Table of contents 5
4 Cabinet construction
35Contents of this chapter ........................................................................
35Limitation of liability .............................................................................
36Switching, disconnecting and protecting solution ........................................
36Cabinet configuration overview ...............................................................
37400 mm wide Rittal VX25 and generic enclosures .....................................
38Cabinet layout drawings ........................................................................
38Layout drawing of 1×D8D or 2×D8D unit in 400 mm wide Rittal VX25 enclosure .
39Cabinet temperature supervision .............................................................
40Pipe routing ........................................................................................
41Pipe routing example of 1×D8D unit in 400 mm wide Rittal VX25 enclosure .....
42Pipe routing example of 2×D8D unit in 400 mm wide Rittal VX25 enclosure . . . . .
43Installation examples ............................................................................
44D8D modules in a 400 mm wide Rittal VX25 or generic enclosure .....................
44Installation stages ............................................................................
45Kits for D8D supply modules in 400 mm Rittal VX25 or generic enclosure .......
46Stage 1: Installation of common parts ....................................................
47Stage 2: Module installation parts .........................................................
48Stage 3: Liquid-cooling system components ...........................................
49Stage 4: AC and DC busbar installation ..................................................
50Stage 5: AC and DC connection ............................................................
51Stage 6: Cabinet fan and heat exchanger ................................................
52Stage 7: Shroud installation parts .........................................................
53Stage 8: Door, covers and explosion exhaust kit .......................................
5 Electrical installation
55Contents of this chapter ........................................................................
55Safety and liability ................................................................................
56Electrical safety precautions ...................................................................
57General notes ......................................................................................
57Printed circuit boards ........................................................................
57Optical components ..........................................................................
57Checking the insulation of the assembly ....................................................
57Measuring the insulation resistance of the drive ......................................
58Measuring the insulation resistance of the input power cable . . . . . . . . . . . . . . . . . . . . . .
59Selecting the supply transformer .............................................................
60Selecting the power cables .....................................................................
60Input AC cabling ...............................................................................
61Typical power cable sizes ...................................................................
61Connecting the power cables and busbars .................................................
61Connection diagrams ........................................................................
62Connection diagram – 2×D8D, 6-pulse, internal charging ........................
63Connection diagram – 2×D8D, 12-pulse, internal charging .......................
64
Connection diagram – 2×D8D, 6-pulse, external charging and
pre-magnetizing ...........................................................................
65
Connection diagram – 2×D8D, 12-pulse, external charging and
pre-magnetizing ...........................................................................
66Connection procedure .......................................................................
67Charging circuit wire recommendations ....................................................
68Connecting the external power supply cable for the auxiliary circuit .................
68Connection diagram ..........................................................................
6 Table of contents
68Connecting power supply for the control unit .............................................
68Connection diagram ..........................................................................
68Connecting the control cables .................................................................
70Connecting a PC ..................................................................................
6 Installation checklist
71Contents of this chapter ........................................................................
71Checklist ............................................................................................
7 Start-up
75Contents of this chapter ........................................................................
75Start-up procedure ...............................................................................
75Example description ..........................................................................
76Safety ............................................................................................
76Checks/Settings with no voltage connected ...........................................
76Starting and checking the cooling system ..............................................
76Powering up the auxiliary circuit of the drive ...........................................
77Setting up the supply unit parameters ...................................................
77Powering up the main circuit of the drive ...............................................
78Validating the safety functions ............................................................
78On-load checks ................................................................................
78Switching the supply unit off ..................................................................
78Disconnecting and temporary grounding the drive .......................................
8 Maintenance
79Contents of this chapter ........................................................................
79Maintenance intervals ...........................................................................
79Description of symbols ......................................................................
80Recommended maintenance intervals after start-up .................................
81Maintenance timers and counters ............................................................
81Internal liquid-cooling system .................................................................
81Cabinet .............................................................................................
81Cleaning the interior of the cabinet .......................................................
81Cleaning the heat exchanger ...................................................................
82Fuses ................................................................................................
82Checking and replacing the module AC fuses ..........................................
83Fans .................................................................................................
83Replacing the cabinet fan ...................................................................
85Supply module ....................................................................................
85Replacing the supply module ...............................................................
89Control panel ......................................................................................
89Control unit ........................................................................................
89Replacing the memory unit .................................................................
90Replacing the ZCU-14 control unit battery ..............................................
91LEDs and other status indicators .............................................................
91Control panel and panel platform/holder LEDs ........................................
9 Ordering information
93Contents of this chapter ........................................................................
93Kit code key ........................................................................................
Table of contents 7
95Frame D8D .........................................................................................
95Diode supply modules .......................................................................
96Control panel ...................................................................................
97Control electronics ...........................................................................
97ZCU kit .......................................................................................
97CIO-01 I/O module ........................................................................
98Mechanical installation accessories .......................................................
98Module installation mechanics kit .....................................................
99Shrouding (for Rittal VX25 enclosures) ...............................................
99Swing-out frame (for Rittal VX25 enclosures) .......................................
100Explosion exhaust kit (for Rittal VX25 enclosures) .................................
100AC-side components .........................................................................
100Lead-through kit for bottom plate ....................................................
101AC connection kits ........................................................................
101AC fuses .....................................................................................
102Charging kits ...............................................................................
103DC-side components .........................................................................
103DC bus installation parts (for Rittal VX25 enclosures) .............................
104DC busbars (for Rittal VX25 enclosures) ..............................................
104DC connection kit ..........................................................................
104Cooling system parts ........................................................................
104Coolant distribution manifold kits ....................................................
106Piping ........................................................................................
106Heat exchanger ............................................................................
107Cabinet fan support ......................................................................
107Cooling fans ................................................................................
10 Internal cooling circuit
109Contents of this chapter ........................................................................
109Applicability ........................................................................................
109Internal cooling system .........................................................................
111Connection to a cooling unit ...................................................................
111Connection to an ACS880-1007LC cooling unit ........................................
111Connection to a custom cooling unit .....................................................
111General requirements ....................................................................
111Coolant temperature control ...........................................................
112Filling up and bleeding the internal cooling circuit ........................................
112Drive line-ups with an ACS880-1007LC cooling unit ...................................
112Drive line-ups with a custom cooling unit ...............................................
114Draining the internal cooling circuit ..........................................................
114Maintenance intervals ...........................................................................
114Technical data .....................................................................................
114Coolant specification ........................................................................
114Coolant type ................................................................................
114Temperature limits ...........................................................................
116Pressure limits .................................................................................
116Coolant flow rate limits ......................................................................
116Cooling circuit materials ....................................................................
11 Technical data
119Contents of this chapter ........................................................................
8 Table of contents
119Ratings ..............................................................................................
120Derating .........................................................................................
120Surrounding air temperature derating ...............................................
120Coolant temperature derating .........................................................
120Antifreeze content derating .............................................................
120Altitude derating ..........................................................................
121Type equivalence table and frame sizes .....................................................
121Fuses ................................................................................................
121AC fuses .........................................................................................
121Dimensions and weights ........................................................................
122Free space requirements .......................................................................
123Losses, cooling circuit data and efficiency ..................................................
123Energy efficiency data (ecodesign) ...........................................................
124Auxiliary circuit current consumption ........................................................
125Tightening torques ...............................................................................
125Electrical connections ........................................................................
125Mechanical connections .....................................................................
125Insulation supports ...........................................................................
125Cable lugs .......................................................................................
126Electrical power network specification ......................................................
126DC connection data ..............................................................................
127Coolant connection data ........................................................................
127Power systems ....................................................................................
127Protection classes for module .................................................................
127Optical components .............................................................................
127Ambient conditions ..............................................................................
129Cooling ..............................................................................................
129Materials ............................................................................................
129Standards ..........................................................................................
129Markings ............................................................................................
129Disclaimer ..........................................................................................
129Generic disclaimer ............................................................................
129Cybersecurity disclaimer ....................................................................
12 The control unit
131Contents of this chapter ........................................................................
131General ..............................................................................................
132ZCU-14 layout ......................................................................................
133ZCU-14 default I/O connection diagram ....................................................
135External power supply for the control unit (XPOW) .......................................
135Safe torque off (XSTO) ..........................................................................
135FSO safety functions module connection (X12) ............................................
136Connector data ...................................................................................
138ZCU-1x ground isolation diagram .........................................................
13 Dimension drawings
139Contents of this chapter ........................................................................
140Liquid-cooled D8D module .....................................................................
141DPMP-01 mounting kit ...........................................................................
142ZCU-14 control unit ..............................................................................
143Support plate for ZCU-14 .......................................................................
Table of contents 9
144CIO-01 module .....................................................................................
145AC fuse 170M6467 ................................................................................
145Microswitch 170H0069 ..........................................................................
146Charging circuit components ..................................................................
146Charging switch OS40FD12000 ............................................................
146Handle OHB65J6 ..............................................................................
147Contactors ......................................................................................
147AF16-30-10-13 ..............................................................................
148AF26-30-00-13 ..............................................................................
149Fuse holders ....................................................................................
149170H1007 ....................................................................................
149Auxiliary contact OA1G10 ....................................................................
150Diode bridge SKKD 81/22H4 ................................................................
151Charging resistor CBH165 C ................................................................
14 Example circuit diagrams
153Contents of this chapter ........................................................................
154Component designations used in the diagrams ...........................................
155Frame 1×D8D – Main line connections (sheet 001a) .......................................
156Frame 1×D8D – Charging circuit (sheet 001b) ..............................................
157Frame 1×D8D – Auxiliary voltage distribution (sheet 020a) .............................
158Frame 1×D8D – 115/230 V AC distribution (sheet 021a) ..................................
159Frame 1×D8D – 24 V DC distribution (sheet 022a) .........................................
160Frame 1×D8D – Cabinet fans (sheet 026a) ..................................................
161Frame 1×D8D – Customer terminals (sheet 031a) .........................................
162Frame 1×D8D – Supply control board (sheet 050a) .......................................
163Frame 1×D8D – Supply control board (sheet 050b) .......................................
164Frame 1×D8D – Supply control board (sheet 050c) .......................................
165Frame 1×D8D – Option cards (sheet 051a) ..................................................
166Frames 2×D8D – Main line connections (sheet 001a) .....................................
167Frames 2×D8D – Charging circuit (sheet 001b) ............................................
168Frames 2×D8D – Auxiliary voltage distribution (sheet 020a) ...........................
169Frames 2×D8D – 115/230 V AC distribution (sheet 021a) ................................
170Frames 2×D8D – 24 V DC distribution (sheet 022a) .......................................
171Frames 2×D8D – Cabinet fan (sheet 026a) ..................................................
172Frames 2×D8D – Customer terminals (sheet 031a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
173Frames 2×D8D – Supply control board (sheet 050a) ......................................
174Frames 2×D8D – Supply control board (sheet 050b) .....................................
175Frames 2×D8D - Supply control board (sheet 050c) ......................................
176Frames 2×D8D – Option cards (sheet 051a) ................................................
Further information
10 Table of contents
Introduction to the manual
Contents of this chapter
This chapter describes the manual. It gives information on the markings and component
designations, and also the terms and abbreviations that are used in the manual. This
chapter also includes a list of related manuals.
Applicability
The manual is applicable to liquid-cooled ACS880-304LC…+A019 diode supply modules
for user-defined cabinet installations.
Safety instructions
Obey all safety instructions delivered with the drive.
• Read the complete safety instructions before you install, commission, use or
service the drive. The complete safety instructions are given in ACS880
liquid-cooled multidrive cabinets and modules safety instructions
(3AXD50000048633 [English]).
• Read the software-function-specific warnings and notes before changing the
default settings of a function. For each function, the warnings and notes are given
in the section describing the related user-adjustable parameters.
•Read the task-specific safety instructions before starting the task. See the section
describing the task.
Target audience
This manual is intended for people who plan the installation, install, commission and
do maintenance work on the drive, or create instructions for the end user of the drive
concerning the installation and maintenance of the drive.
1
Introduction to the manual 11
Read the manual before you work on the drive. You are expected to know the
fundamentals of electricity, wiring, electrical components and electrical schematic
symbols.
Categorization by frame size and option code
Some descriptions, instructions, technical data and dimensional drawings which
concern only a certain group of units are marked with the symbol of the frame size
(such as “D8D”, “2×D8D” etc.). The marking derives from the quantity and basic
construction of the modules that form a supply unit. For example, frame size “2×D8D”
indicates that the supply unit consists of two frame size D8D modules connected in
parallel.
The frame size is marked on the type designation labels. The frame size of each module
is also shown in the rating tables of chapter Technical data.
The instructions and technical data which concern only certain optional selections are
marked with option codes (such as +A019). The options included in the drive can be
identified from the option codes visible on the type designation label.
Use of component designations
Some device names in the manual include the component designation in brackets (for
example, [Q20]). This will help you to identify the components in the circuit diagrams
of the drive.
Terms and abbreviations
DescriptionTerm/
Abbreviation
I/O module for controlling cooling fansCIO
The part in which the control program runs.Control unit
One section of a cabinet-installed drive. A cubicle is typically behind a door of
its own.
Cubicle
DC circuit between rectifier and inverterDC link
Distributed drives communication system protocolDDCS
Digital inputDI
Diode rectifier and related components enclosed in a metal frame or enclosure.
Intended for cabinet installation.
Diode supply module
Diode supply modules under control of one control board, and related com-
ponents.
Diode supply unit
Frequency converter for controlling AC motorsDrive
Diode supply unitDSU
Electromagnetic compatibilityEMC
In this manual, external charging stands for drive charging circuit outside the
supply unit cubicle.
External charging
Optical DDCS communication moduleFDCO
Diagnostics and panel interface boardFDPI
Rittal Flat-PLS, a busbar system for standard, commercially available flat
busbars
Flat-PLS
Physical size of the drive or power moduleFrame, frame size
DC circuit between rectifier and inverterIntermediate circuit
In this manual, internal charging stands for an ABB charging kit installed inside
the supply unit cubicle.
Internal charging
12 Introduction to the manual
DescriptionTerm/
Abbreviation
Inverter unitINU
Converts direct current and voltage to alternating current and voltage.Inverter
Inverter module(s) under control of one control unit, and related components.
One inverter unit typically controls one motor.
Inverter unit
Drive for controlling several motors which are typically coupled to the same
machinery. Includes one supply unit, and one or several inverter units.
Multidrive
In the drive control program, user-adjustable operation instruction to the
drive, or signal measured or calculated by the drive.
In some (for example fieldbus) contexts, a value that can be accessed as an
object. For example, variable, constant, or signal.
Parameter
Converts alternating current and voltage to direct current and voltageRectifier
Drive for controlling one motorSingle drive
Supply module(s) under control of one control unit, and related components.Supply unit
Total harmonic distortionTHD
Type of control unitZCU
Related documents
￭Multidrive module manuals
CodeManual
General manuals
3AXD50000048633
ACS880 liquid-cooled multidrive cabinets and modules safety instructions
3AXD50000048634
ACS880 liquid-cooled multidrive cabinets and modules electrical planning instruc-
tions
3AUA0000107668
Drive modules cabinet design and construction instructions
3AUA0000113605
BCU-02/12/22 control units hardware manual
3AXD50000126880
CIO-01 I/O module for distributed I/O bus control user's manual
Supply module manuals
3AXD50000284436
ACS880-204LC IGBT supply modules hardware manual
3AUA0000131562
ACS880 IGBT supply control program firmware manual
3AXD50000568963
ACS880-304LC…+A018 diode supply modules hardware manual
3AXD50000045157
ACS880-304LC…+A019 diode supply modules hardware manual
3AUA0000103295
ACS880 diode supply control program firmware manual
Inverter module manuals and guides
3AXD50000045610
ACS880-104LC inverter modules hardware manual
3AUA0000085967
ACS880 primary control program firmware manual
3AUA0000098062
ACS880 primary control program quick start-up guide
Brake module and DC/DC converter module manuals
3AXD50000184378
ACS880-604LC 1-phase brake chopper modules hardware manual
3AXD50000581641
ACS880-604LC 3-phase dynamic brake modules as units hardware manual
3AXD50000020967
ACS880 (3-phase) brake control program firmware manual
3AXD50000371631
ACS880-1604LC DC/DC converter modules hardware manual
3AXD50000024671
ACS880 DC/DC converter control program firmware manual
Option manuals
Introduction to the manual 13
CodeManual
3AXD50000129607
ACS880-1007LC liquid cooling unit user's manual
3AUA0000085685
ACS-AP-I, -S, -W and ACH-AP-H, -W Assistant control panels user’s manual
3AXD50000117840
BAMU-12C auxiliary measurement unit hardware manual
3AUA0000094606
Drive Composer start-up and maintenance PC tool user’s manual
3AUA0000127808
Drive application programming (IEC 61131-3) manual
3AXD50000210268
Converter module lifting device for drive cabinets hardware manual
Manuals and quick guides for I/O extension modules, fieldbus adapters, safety functions modules, etc.
See www.abb.com/drives/documents for all manuals on the Internet.
You can find all documentation related to the multidrive modules on the Internet at
https://sites-apps.abb.com/sites/lvacdrivesengineeringsupport/content.
14 Introduction to the manual
Operation principle and hardware
description
Contents of this chapter
This chapter describes how the diode supply unit works and the hardware of the diode
supply module.
Operation principle
The heart of the diode supply unit is a diode bridge. It rectifies three-phase AC current
to direct current for the intermediate DC link of the drive. The intermediate DC link
supplies the inverters that run the motors. There can be one inverter unit only (single
drives) or several inverter units (multidrives) connected to the intermediate circuit.
The rectifier bridge in the supply module is uncontrolled: it cannot control the DC link
voltage or limit the charging current of the DC link capacitors at the power up. Thus
you can only use the bridge with inverters that have charging circuits, or you must
equip the supply unit with a separate charging circuit.
Note:
•The supply module does not have means to control, limit or cut off the load current.
• The customer must arrange the overload and short-circuit protection of each
supply cable (typically with fuses).
• The supply unit does not have AC or DC chokes. Thus, the customer must arrange
a sufficient inductance at the AC side of each supply module with suitable cabling.
The minimum length of the supply cable per each supply module is 5 meters (16.4
feet). The inductances between the parallel-connected supply modules must be
identical, ie, the cabling to each module must be identical in regard to cable type
and length. For selecting the supply transformer, see Selecting the supply
transformer.
2
Operation principle and hardware description 15
￭Main circuit diagram
The figure shows a simplified main circuit diagram of the rectifier bridge.
16 Operation principle and hardware description
Main circuit diagram
The figure shows a simplified main circuit diagram of the rectifier bridge.
Implementing DC voltage measurement
The control program needs a measured voltage value:
•for the control of the charging circuit at the power up
•for overvoltage and undervoltage monitoring and protection.
The supply unit does not have the DC voltage measurement as standard. The cabinet
installer must implement it separately. The cabinet installer can, for example:
1. connect the DC voltage measurement of the inverter unit to the supply unit via a fiber
optic link. For more information, see Setting the parameters on page 84, Example
circuit diagrams on page 169, and the relevant firmware manuals.
2. connect the DC voltage measurement of the inverter unit to the supply unit via the
analog output of the inverter unit and analogue input AI2 or AI1 of the supply unit. For
more information, see Setting the parameters on page 84, Example circuit diagrams
on page 169, and the relevant firmware manuals.
3. use a separate voltage measurement device (transducer), and connect it between the
drive DC link and analogue input AI2 or AI1 of the supply unit.
You can use alternatives 1, 2, or 3 for a single drive, in other words, for a drive that consist
of one supply unit and one inverter unit. For multidrives (one supply unit feeds several
inverters), use alternative 3.
Charging
A charging circuit powers up the DC link capacitors of the drive system smoothly.
Discharged capacitors cannot be directly connected to the full supply voltage. The
charging current must be limited until the capacitors are charged and ready for normal use.
If the diode supply unit is equipped with a charging circuit, the DC voltage level must be
signaled to the control unit either through analog input AI2 (AI1) or fiber optic connection
1. AC fuses
2. Diodes
+
-
Uc
+
-
Uc
2
2
1
AC fuses1
Diodes2
￭Implementing DC voltage measurement
The control program needs a measured voltage value:
• for the control of the charging circuit at the power up
• for overvoltage and undervoltage monitoring and protection.
The supply unit does not have DC voltage measurement as standard. The cabinet
installer must implement it separately. The cabinet installer can, for example:
1. connect the DC voltage measurement of the inverter unit to the supply unit via a
fiber optic link between DDCS communication modules. For more information,
see Start-up (page 75),Example circuit diagrams (page 153) and the relevant
firmware manuals.
2. connect the DC voltage measurement of the inverter unit to the supply unit via
the analog output of the inverter unit and analogue input AI2 or AI1 of the supply
unit. For more information, see Start-up (page 75),Example circuit
diagrams (page 153) and the relevant firmware manuals.
3. use a separate voltage measurement device (transducer), and connect it between
the drive DC link and analogue input AI2 or AI1 of the supply unit.
You can use alternatives 1, 2, or 3 for a single drive, in other words, for a drive that
consist of one supply unit and one inverter unit. For multidrives (one supply unit feeds
several inverters), use alternative 3.
￭Charging
A charging circuit powers up the DC link capacitors of the drive system smoothly.
Discharged capacitors cannot be directly connected to the full supply voltage. The
charging current must be limited until the capacitors are charged and ready for normal
use.
16 Operation principle and hardware description
If the diode supply unit is equipped with a charging circuit, the DC voltage level must
be signaled to the control unit either through analog input AI2 (AI1) or fiber optic
connection between the supply unit and inverter unit (requires FDCO-01 DDCS
communication module). The charging function and DC voltage measurement source
must be defined by parameters. For more information, see the firmware manual.
Inverter unitSupply unit
RDCO-04 in BCU control unitFDCO-01 in ZCU control unit
CH1 V15
V16
CH A V1R
V1T
￭DC overvoltage and undervoltage protection
The supply unit control program monitors the measured DC voltage value. If it detects
an overvoltage or undervoltage, it trips the main contactor and generates a fault. For
more information, see the firmware manual.
Note: There is no DC voltage measurement in the supply unit as standard. See section
Implementing DC voltage measurement (page 16).
￭Short-circuit protection
AC fuses protect the supply unit against short circuit. The cabinet installer must acquire
and install the fuses. Fuses are available from ABB.
Note that the supply unit designs presented in this manual do not contain DC fuses.
The cabinet installer must arrange for appropriate short circuit protection on the DC
side.
DC fuses limit the DC short-circuit energy and are necessary when D8D modules are
used as a part of a multidrive configuration or when the total capacitance of the line-up
exceeds 36 mF or 4 × R8i modules.
￭Module temperature supervision
Thermal switch [F6.1] supervises the temperature inside the supply module. Wire the
switch to a digital input (DI1) of the supply control unit (1 = OK, 0 = overtemperature).
In case of overtemperature, the switch opens and the control program generates first
a warning, and then, if the overtemperature indication remains over a predefined
delay, trips the supply unit on a fault. You can adjust the delay time by parameters.
For the example wirings, see Example circuit diagrams (page 153).
For cabinet temperature supervision, see Cabinet temperature supervision (page 39).
Operation principle and hardware description 17
￭6-, 12- and 24-pulse supply units
The supply units can be connected either to 6-pulse, 12-pulse or 24-pulse connection.
If 12-pulse or 24-pulse supply transformer is used, there can be a maximum of 4 diode
supply modules in one drive system. The figure illustrates the difference between
6-pulse and 12-pulse AC supply connections. The 6-pulse connection is standard.
The 12-pulse supply connection eliminates the fifth and seventh harmonics, which
remarkably reduces the harmonic distortion of the line current and the conducted
emissions. The 12-pulse connection requires a three-winding transformer, or two
separate transformers. There is a 30-degree phase shift between the two 6-pulse
supply lines.
6-pulse connection
1
2
3 4
5
12-pulse connection
1 2 34
5
Supply transformer1
Switching equipment and fuses2
Fuses for protecting input cabling3
AC fuses for protecting supply unit against short circuit4
Diode supply modules5
18 Operation principle and hardware description
Overview diagrams
This section contains examples of main circuit overview diagrams. The diagrams show
the power line connection, and the connections between the components. The supply
unit overview diagrams also show examples of division of components in cubicles,
and indicate which components you can order from ABB and which you need to acquire
separately.
￭Overview diagram of a drive
This diagram shows a a simplified diagram of a drive with one diode supply unit and
one inverter unit.
2
17
M
3~
6
3
45
AC supply1
Input (AC) fuses2
Supply module3
DC bus (-, +)4
Inverter DC fuses5
Inverter module6
Motor7
Operation principle and hardware description 19
￭Overview diagram – 1×D8D, 6-pulse, internal charging
The diagram shows a supply unit with one D8D module and internal charging in a
6-pulse connection. In this manual, internal charging stands for ABB charging kit inside
the supply unit cubicle.
Note: *) Minimum length of the cables is 5 meters.
External installation (outside supply module cubicle)A
Supply module cubicleB
Medium voltage/low voltage switchboard1
Supply transformer2
Charging switchgear including disconnecting device3
Dedicated supply unit switchgear including:4
• Disconnecting device
• Breaker/contactor
• Overcurrent and short-circuit protection of input cabling
AC fuses for protecting supply unit against short circuit 1)
5
Internal charging kit 2)
6
Diode supply module 2)
7
DC link8
1) Available through ABB or third party
2) Available through ABB
20 Operation principle and hardware description
Table of contents
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