ABB UCU-22 User manual

—
ABB INDUSTRIAL DRIVES
UCU-22/23/24/25/26 control units
Hardware manual

UCU-22/23/24/25/26 control units
Hardware manual
Table of contents
3. Mechanical installation
4. Electrical installation
3AXD50000817726 Rev A
EN
Original instructions
EFFECTIVE: 2023-09-15

Table of contents
1 Introduction to the manual
7Contents of this chapter ........................................................................
7Safety ...............................................................................................
7Terms and abbreviations .......................................................................
8Related documents ..............................................................................
2 Operation principle and hardware description
9Contents of this chapter ........................................................................
9Hardware description ...........................................................................
10Fiber optic connections .........................................................................
11Layout ...............................................................................................
3 Mechanical installation
15Contents of this chapter ........................................................................
15Examining the delivery ..........................................................................
15Identifying different control unit types ..................................................
16Installing the control unit on a DIN rail .......................................................
18Installing the slot adapter ......................................................................
4 Electrical installation
19Contents of this chapter ........................................................................
19Installation procedure ...........................................................................
19Related documents ..............................................................................
5 Maintenance
21Contents of this chapter ........................................................................
22Replacing the real-time clock battery ........................................................
23Replacing the memory unit .....................................................................
24Replacing the microSDHC memory card .....................................................
25Replacing the control unit ......................................................................
6 Technical data
27Contents of this chapter ........................................................................
27Connector data ...................................................................................
30UCU-22…26 ground isolation diagram ...................................................
31Additional information on the connections .................................................
31External power supply for the control unit (XPOW) ...................................
31DIIL input ........................................................................................
31The XD2D connector ..........................................................................
32The X485 connector ..........................................................................
32MicroSDHC memory card slot ..............................................................
33Other information ................................................................................
34Cyber security disclaimer .......................................................................
Table of contents 5

7 Dimension drawings
35Contents of this chapter ........................................................................
36Dimension drawings of the control unit .....................................................
Further information
6 Table of contents

Introduction to the manual
Contents of this chapter
This chapter gives information on the manual.
Safety
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur. If you are not a qualified
electrical professional, do not do installation, commissioning or
maintenance work.
Terms and abbreviations
DescriptionTerm
Converts direct current and voltage to alternating current and voltage, or vice
versa.
Converter
Frequency converter for controlling AC motorsDrive
Converts direct current and voltage to alternating current and voltage.Inverter
Optical DDCS communication moduleRDCO
Safe torque off (IEC/EN 61800-5-2)STO
Type of control unitUCU
Later in this manual, the term converter covers the terms drive, converter, inverter
and brake chopper.
1
Introduction to the manual 7

Related documents
You can find manuals on the Internet. See below for the relevant code/link. For more
documentation, go to www.abb.com/drives/documents.
CodeName
General manuals
3AUA0000102301ACS880 multidrive cabinets and modules safety instructions
3AXD50000048633ACS880 liquid-cooled multidrive cabinets and modules safety instructions
3AUA0000102324ACS880 multidrive cabinets and modules electrical planning instructions
3AXD50000048634ACS880 liquid-cooled multidrive cabinets and modules electrical planning instruc-
tions
3AUA0000107668Drive modules cabinet design and construction instructions
3AXD50000817726UCU-22/23/24/25/26 hardware manual
Option manuals
3AUA0000113618FDPI-02 diagnostics and panel interface user’s manual
3AFE64492209RDCO-0x DDCS Communication option modules user's manual
8 Introduction to the manual

Operation principle and hardware
description
Contents of this chapter
This chapter gives information about the hardware of the control units.
Hardware description
The UCU control units are used for controlling converters via fiber optic links. They
contain integrated branching unit functionality for collecting and storing real-time
data from the modules to help fault tracing and analysis. The data is stored on the
microSDHC memory card inserted into the microSD card slot in the UMU-01 memory
unit and can be analyzed by ABB service personnel.
The control unit requires an external 24 V DC power source. It has three option slots
for I/O extensions, encoders and fieldbus adapters, and a removable memory unit. If
you need to replace the control unit, you can keep the parameter settings by moving
the memory unit from the defective control unit to the new one. The control unit also
has one option slot for connecting a RDCO-0x DDCS communication option board.
The drive-to-drive link (XD2D) is a daisy-chained RS-485 transmission line that allows
basic master/follower communication with one master and multiple followers. The
control unit has two Ethernet ports for control network and two Ethernet ports for
tool/gateway network. The control unit also has a connection for control panel. The
X485 connection provides a connection for optional CIO-01 I/O module. Environmental
sensors measure humidity and temperature.
2
Operation principle and hardware description 9

Fiber optic connections
The different control unit types have a different number of fiber optic connections.
No. of fiber optic connectionsType
2 (V1…V2)UCU-22
8 (V1…V8)UCU-23
14 (V1…V14)UCU-24
20 (V1…V20)UCU-25
26 (V1…V26)UCU-26
The maximum length of the cables with 1 mm plastic optical fiber cable is 35 m (115 ft).
Make sure that:
• both cables in a fiber optic pair have the same length, and
• each fiber optic pair connected to one control unit has the same length.
With long distances, cables of different lengths cause different delays, which can have
an unwanted effect on the operation.
For instructions on how to connect the control unit to the converter module(s), refer
to the applicable hardware manual.
10 Operation principle and hardware description

Layout
The figures show the layout of the control unit.
For the default I/O connection diagrams and more information on the connections,
refer to the applicable hardware manual.
Description
I/O terminalsI/O
I/O extension, encoder interface or fieldbus
adapter module connection. For F-type
modules with USCA-02 adapter.
SLOT 1
I/O extension, encoder interface or fieldbus
adapter module connection. For F-type
modules with USCA-02 adapter.
SLOT 2
I/O extension, encoder interface or fieldbus
adapter module connection. For F-type
modules with USCA-02 adapter.
SLOT 3
RDCO-0x DDCS communication option
module connection
SLOT 4
UMU-01 memory unit connection. Data logger
microSDHC memory card for inverter module
communication is inside the memory unit.
MEM
Holder for real-time clock battery (BR2032)BAT
Termination switches for drive-to-drive link
(XD2D)
XD2D TERM
RS-485 link termination switchX485 TERM
RS-485 link bias switch.X485 BIAS
Ground selection. Determines whether DICOM
is separated from DIOGND (ie. the common
reference for the digital inputs floats). Refer
to the ground isolation diagram.
DICOM=
DIOGND
DescriptionLED
When the PWR LED is on, the voltage supply
is sufficient.
PWR
When the BAT LED is on, the real-time clock
battery voltage is higher than 2.5 V. If the LED
is off, replace the battery.
BAT
When the WRITE LED is on, writing to
microSDHC memory card is in progress. Do
not remove the microSDHC memory card.
WRITE
The control program has generated a fault.
Refer to the firmware manual.
FAULT
Reserved.FS COMM
Reserved.FS STATUS
Operation principle and hardware description 11

Description
Analog inputXAI
Analog outputXAO
CAN busXCAN
CAN bus termination switchXCAN TERM
Digital inputXDI
Digital input/outputXDIO
Drive-to-drive linkXD2D
+24 V output (for digital input)XD24
Ethernet ports for fieldbus, internal switchXETH1
XETH2
Ethernet ports for tool communication, internal
switch
XETH3
XETH4
Control panel connectionXPAN
Panel bus termination switchXPAN TERM
External power inputXPOW
Relay output RO1XRO1
Relay output RO2XRO2
Relay output RO3XRO3
Relay output RO4, reserved.XRO4
Safe torque off connection (input signals)XSTO
Safe torque off connection (to inverter modules)XSTO OUT
RS-485 linkX485
Fiber optic connections to converter modules
(VxT = transmitter, VxR = receiver)
V1T/V1R
…
V26T/V26R
12 Operation principle and hardware description

Description
Not in useXFSO
Humidity and temperature measurementsEnvironmental
sensors
Operation principle and hardware description 13

14

Mechanical installation
Contents of this chapter
This chapter describes the installation procedures and the contents of the delivery.
Examining the delivery
Make sure that these items are included:
• control unit with the I/O connector plugs
• UMU-01 memory unit
• microSDHC flash memory card (inserted in its slot inside the UMU memory unit)
• BR2032 battery
• USCA-02 option slot adapters.
Make sure that there are no signs of damage to any of the items.
￭Identifying different control unit types
Before you install the control unit, make sure that it has the correct control program
for the hardware in question. The control program is shown on the label attached to
the memory unit.
Make sure that the control unit is correct for your equipment configuration.
3
Mechanical installation 15
10

Installing the control unit on a DIN rail
WARNING!
Do not install the control unit adjacent to electromagnetic disturbance sources,
such as relays, contactors, brake choppers, power and motor cabling. The
minimum recommended distance from such components is 200 mm (7.9 in).
ABB recommends to install metallic screening between the control unit and
the source of disturbance. This can reduce the required distance.
WARNING!
Install the control unit so that air can pass freely through the ventilation holes
in the housing. Do not install the control unit directly above heat generating
equipment.
You can install the control unit on a horizontal or vertical standard 35 × 7.5/15 mm DIN
rail. In horizontal direction, make sure that the connectors are pointing downwards.
In vertical direction, the connectors can point to left or right.
Leave enough space for:
• cabling
• environmental sensors
• replacing the UMU-01 memory unit and real-time clock battery.
The control unit is grounded through the DIN rail and the grounding screw
1. Attach the grounding screw (M4×6 or M4×8) and wire to the control unit. Ground
the control unit to the cabinet frame with the grounding wire. The minimum
cross-sectional area of the ground conductor is 4 mm2(12 AWG).
16 Mechanical installation
4

2. Push the control unit to the DIN rail. It makes a click. To prevent the movement of
the control unit, attach it to the DIN rail with end brackets (optional).
Mechanical installation 17
10

Installing the slot adapter
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur. If you are not a qualified
electrical professional, do not do installation, commissioning or
maintenance work.
A slot adapter is necessary if you install F-series option modules onto the control unit.
You can install a maximum of 3 slot adapters per control unit.
Note: It is possible to install RDCO-0x communication option module directly onto
the control unit without the slot adapter.
1. Stop the drive and do the steps in section Electrical safety precautions in the
applicable hardware manual before you start the work.
2. Attach the slot adapter onto slot 1, slot 2 or slot 3 with a screw.
3. Torque the screw to 0.8 N·m (7.1 lbf·in).
18 Mechanical installation
4

Electrical installation
Contents of this chapter
This chapter describes the electrical installation of the control units.
Installation procedure
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur. If you are not a qualified
electrical professional, do not do installation, commissioning or
maintenance work.
1. Connect the +24 V external power supply to the control unit connector XPOW. You
can connect a second power supply for redundancy.
2. Connect the fiber optic cables from the converter module to the control unit. Refer
to the instructions given in the converter module hardware manual.
3. Connect the control cables to the control unit. Refer to the instructions given in
the converter module hardware manual.
Related documents
For the default I/O connection diagrams and more information on the connections,
refer to the applicable converter module hardware manual.
4
Electrical installation 19
11

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