ECKELMANN UA 400 User manual

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Docu 2.0
Operating instruction
Case Controller UA 400
Universal Controller for thermostatic expansion Valves (TEV)
The series UA 400 includes the following expansion stages: UA 400 CC

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Eckelmann AG
Business Unit Refrigeration and Building Automation
Berliner Straße 161
65205 Wiesbaden
Germany
Telephone [phone]
Fax [phone]
[email protected]
www.eckelmann.de
Board of Management: Dipl.-Ing. Peter Frankenbach (Spokesman),
Dipl.-Wirtsch.-Ing. Philipp Eckelmann, Dr.-Ing. Marco Münchhof
Chairman of the Supervisory Board: Hubertus G. Krossa
Deputy Chairman of the Supervisory Board: Dr.-Ing. Gerd Eckelmann
Registration court / registration number
District court Wiesbaden, HRB 12636
Before commissioning and use, please check that this is the latest version of the document. With the
publication of a new version of the documentation, all previous versions lose their validity. The current operating
manual and information such as data sheets, more detailed documentation and FAQs are available for you on-
line in E°EDP (Eckelmann ° Electronic Documentation Platform) at
www.eckelmann.de/elds
You reach all relevant documents for this component directly using the QR code:
https://edp.eckelmann.de/edp/lds/_NbH4owBiFn
Information on safety and connection instructions are described in detail in chapter ”Industrialsafety notes”.
Copyright: All rights to any use whatever, utilisation, further development, forwarding and creation of copies
remain with the Eckelmann AG company. In particular, neither the contract partners of Eckelmann AG nor other
users have the right to distribute or market the IT programs/program parts or modified or edited versions
without express written permission. To some extent, names of products/goods or designations are protected for
the respective manufacturer (registered trademarks etc.); in any case, no guarantee is assumed for their free
availability/permission to use them. The information provided in the description is given independently of any
existing patent protection or other third-party rights.
Errors and technical modifications are expressly reserved.

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Table of Contents
1 Conventions.............................................................................................................................................9
1.1 Warning signs, symbols and text formatting used in this manual.....................................................9
1.2 Explanation of text formatting .............................................................................................................10
2 Safety instructions ................................................................................................................................ 11
2.1 Disclaimer in the event of non-compliance ........................................................................................12
2.2 Requirements for the personnel ..........................................................................................................12
2.3 Intended use ..........................................................................................................................................13
2.4 Five safety rules according to DGUV Regulation 3............................................................................13
2.5 Electrostatic-sensitive components and control components (ESD)..............................................14
2.5.1 ESD - Rules for handling and working ....................................................................................................14
2.6 Abbreviations used ...............................................................................................................................14
3 System Design of UA 400 .....................................................................................................................15
3.1 Application.............................................................................................................................................15
3.2 Hardware ................................................................................................................................................16
4 Applications of UA 400 .........................................................................................................................17
4.1 Versions .................................................................................................................................................17
4.2 Controller types.....................................................................................................................................18
4.3 Updating firmware.................................................................................................................................20
5 Function of UA 400 / UA 410.................................................................................................................21
5.1 Starting characteristics ........................................................................................................................ 21
5.1.1 First start- reset controller to factory settings ..........................................................................................21
5.1.2 Restart - restart of the controller..............................................................................................................21
5.2 Selection of the temperature sensors.................................................................................................22
5.2.1 Necessary and optional sensors .............................................................................................................23
5.3 Controller function ................................................................................................................................25
5.4 Cooling ...................................................................................................................................................25
5.4.1 Temperature control by supply and return air in single-zone operation ..................................................25
5.4.2 Temperature control by supply and return air in two-zone operation ......................................................27
5.4.3 Temperature control by cold-room air sensor..........................................................................................28
5.4.4 Continuous running monitoring ...............................................................................................................29
5.4.5 Minimum on and off time .........................................................................................................................29
5.4.6 E*COP+ (SDS TEV) ................................................................................................................................29
5.4.7 Two temperature zones...........................................................................................................................30
5.4.8 Heating circuit control..............................................................................................................................30
5.4.9 Operation of cooling relay .......................................................................................................................30
5.4.10 Start delay after fan .................................................................................................................................31

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5.4.11 Emergency operation ..............................................................................................................................31
5.5 Defrosting ..............................................................................................................................................31
5.5.1 Typesofdefrosting–anoverview........................................................................................................... 31
5.5.2 Defrost in general ....................................................................................................................................32
5.5.3 Discharge gas defrosting (hot gas defrosting).........................................................................................38
5.5.4 Brine defrosting .......................................................................................................................................39
5.5.5 Master/slavemode–defrostsynchronisationviaCANbus....................................................................40
5.5.6 Master/slavemode–defrostsynchronisationviawiring.........................................................................43
5.5.6.1 Master/slave mode for the synchronisation of the zones of a single controller.......................................44
5.5.6.2 Master-slave mode for the synchronisation of multiple controllers .........................................................45
5.5.6.3 Necessary settings for the master / slave mode .....................................................................................46
5.5.6.4 Special features and constraints .............................................................................................................46
5.5.7 Defrost sequence (DS) via CAN bus.......................................................................................................48
5.5.8 Fan control with case and cold-room controllers.....................................................................................52
5.5.8.1 Fan control on multidecks .......................................................................................................................52
5.5.8.2 Fan control - Controller type UA 131 .......................................................................................................52
5.5.8.3 Fan control - controller type UA 131 LS with enhanced fan control ........................................................53
5.5.8.4 Fan control - Controller type UA 131 DD.................................................................................................57
5.5.8.5 Fan control - Controller type UA 141 E....................................................................................................57
5.5.9 Fan control with cold-room controllers ....................................................................................................58
5.5.9.1 Cold-room with defrost heater - Controller type UR 141 TK (LT) only.....................................................59
5.5.9.2 Cold-room without defrost heater - Controller type UR 141 NK (NT) only ..............................................60
5.5.9.3 Heating circuit (controller type UR 141 TK (LT) or NK (NT) only) ...........................................................60
5.6 Humidification - Controller type UA 141 only .....................................................................................61
5.7 Antisweat heaters..................................................................................................................................61
5.8 Automatic on/off control.......................................................................................................................64
5.9 Door contact ..........................................................................................................................................65
5.10 Manual shutdown ..................................................................................................................................66
5.11 Registration of external alarms (e.g. CO2 alarm)...............................................................................66
5.12 Emergency power operation ................................................................................................................67
5.13 Setpoint toggle (day / night operation) ...............................................................................................68
5.14 Light control ..........................................................................................................................................69
5.15 Refrigeration point disabling ...............................................................................................................69
5.16 Forced cooling.......................................................................................................................................69
5.17 Operating data archiving ......................................................................................................................70
5.17.1 Temperature recording ............................................................................................................................ 70
5.17.2 Temperature recording to EU Regulation 37/2005..................................................................................71
5.17.3 Recording of messages and alarms........................................................................................................ 71

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5.18 BT 30 temperature display ...................................................................................................................72
6 UA 400 installation and start-up...........................................................................................................75
6.1 Installation .............................................................................................................................................75
6.1.1 DIN rail mounting of the case/cold-room controller .................................................................................76
6.1.1.1 Mounting on the DIN rail..........................................................................................................................77
6.1.1.2 Disassembling from the DIN rail..............................................................................................................79
6.1.2 Handling of the spring terminals..............................................................................................................80
6.2 Basic settings ........................................................................................................................................81
6.2.1 Setting the CAN bus address ..................................................................................................................81
6.2.2 Setting of the controller type and master/slave mode .............................................................................83
6.3 Terminal assignment for 230 V AC power supply ..............................................................................85
6.3.1 Status LEDs ............................................................................................................................................86
6.4 Basic configuration of the controller ..................................................................................................88
6.4.1 Naming of the controller ..........................................................................................................................92
6.5 Battery replacement..............................................................................................................................93
6.6 Firmware Update ...................................................................................................................................95
6.6.1 Requirements for firmware update..........................................................................................................96
6.6.2 Installing firmware update .......................................................................................................................98
6.6.2.1 Update for controller with 9-pole DIP switch ...........................................................................................98
6.6.2.2 Update for controller with 8-pole DIP switch .........................................................................................102
6.6.3 Rectification of driver problems .............................................................................................................106
7 Pin and Terminal Assignments of UA 400.........................................................................................107
7.1 Terminal diagram.................................................................................................................................107
7.2 Terminal assignment of the 230 V AC power supply .......................................................................108
7.3 Terminal assignment of the 230 V AC relay outputs........................................................................109
7.4 Mode of operation of the relay and transistor outputs.................................................................... 111
7.5 Terminal assignment of the 230 V AC digital inputs........................................................................ 113
7.6 Terminal assignment of the 0..10 V analogue outputs .................................................................... 115
7.7 Terminal assignment of the CAN bus terminals............................................................................... 116
7.8 Terminal assignment of the 24 V DC transistor outputs ................................................................. 117
7.9 Terminal assignment of the DISPLAY interface................................................................................ 118
7.10 Terminal assignment of the 4..20 mA analogue inputs.................................................................... 119
7.11 Terminal assignment of the analogue inputs for temperature sensors.........................................120
7.11.1 Sensor identification ..............................................................................................................................122
7.12 Assignment of the USB port ..............................................................................................................123
7.13 Terminal assignment of the CI 320/TTY interface ............................................................................124
7.14 Wiring of the master-slave function for defrost synchronization...................................................125
8 Operation of UA 400 ............................................................................................................................126

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8.1 Operation possibilities........................................................................................................................126
8.2 Local operation with a BT 300 x operator interface.........................................................................127
8.2.1 Lock-down of the setpoint change.........................................................................................................127
8.3 Remote control via a terminal ............................................................................................................129
8.3.1 Menus and operating screens...............................................................................................................130
8.3.2 Calling the controller menu via remote control......................................................................................134
8.3.2.1 System Centre.......................................................................................................................................134
8.3.2.2 Store computer CI 3x00 / operator terminal AL 300 ..............................................................................135
8.3.3 Deactivating the input lock-down...........................................................................................................137
8.3.3.1 Store computer CI 3x00 / operator terminal AL 300 ..............................................................................137
8.3.3.2 System centre CI 4x00 ..........................................................................................................................137
8.3.4 Activating service mode ........................................................................................................................138
8.3.4.1 System centre CI 4x00 Service-Mode...................................................................................................138
8.3.4.2 Store computer CI 3x00 - Service-Mode ...............................................................................................138
9 Menu structure UA 400 .......................................................................................................................139
9.1 Controller type UA 111 - menu tree....................................................................................................139
9.1.1 Main menu UA 111 ................................................................................................................................142
9.1.2 Menu 1 Actual Values UA 111................................................................................................................143
9.1.3 Menu 2 Setpoints UA 111 ......................................................................................................................147
9.1.4 Menu 3 Clock UA 111 ............................................................................................................................155
9.1.5 Menu 4 Messages UA 111.....................................................................................................................158
9.1.6 Menu 5 Archive UA 111 .........................................................................................................................159
9.1.7 Menu 6 Configuration UA 111................................................................................................................160
9.2 Controller type UA 111 D - menu tree ................................................................................................170
9.2.1 Main menu UA 111 D.............................................................................................................................173
9.2.2 Menu 1 Actual Values UA 111 D ............................................................................................................174
9.2.3 Menu 2 Setpoints UA 111 D...................................................................................................................177
9.2.4 Menu 3 Clock UA 111 D.........................................................................................................................182
9.2.5 Menu 4 Messages UA 111 D .................................................................................................................185
9.2.6 Menu 5 Archive UA 111 D......................................................................................................................186
9.2.7 Menu 6 Configuration UA 111 D ............................................................................................................187
9.3 Controller type UA 121 - menu tree ...................................................................................................196
9.3.1 Main menu UA 121................................................................................................................................199
9.3.2 Menu 1 Actual Values UA 121 ...............................................................................................................200
9.3.3 Menu 2 Setpoints UA 121......................................................................................................................205
9.3.4 Menu 3 Clock UA 121............................................................................................................................213
9.3.5 Menu 4 Messages UA 121 ....................................................................................................................217
9.3.6 Menu 5 Archive UA 121.........................................................................................................................218

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9.3.7 Menu 6 Configuration UA 121 ...............................................................................................................219
9.4 Controller type UA 131 / UA 131 LS - menu tree ...............................................................................229
9.4.1 MainmenuUA 131 /UA 131 LS ............................................................................................................232
9.4.2 Menu1ActualValuesUA 131 /UA 131 LS............................................................................................233
9.4.3 Menu2SetpointsUA 131 /UA 131 LS ..................................................................................................238
9.4.4 Menu3ClockUA 131 /UA 131 LS ........................................................................................................246
9.4.5 Menu4MessagesUA 131 /UA 131 LS.................................................................................................248
9.4.6 Menu5ArchiveUA 131 /UA 131 LS .....................................................................................................249
9.4.7 Menu6ConfigurationUA 131 /UA 131 LS............................................................................................250
9.5 Controller type UA 131 DD - menu tree .............................................................................................259
9.5.1 Main menu UA 131 DD..........................................................................................................................262
9.5.2 Menu 1 Actual Values UA 131 DD.........................................................................................................263
9.5.3 Menu 2 Setpoints UA 131 DD ............................................................................................................... 268
9.5.4 Menu 3 Clock UA 131 DD .....................................................................................................................275
9.5.5 Menu 4 Messages UA 131 DD..............................................................................................................277
9.5.6 Menu 5 Archive UA 131 DD...................................................................................................................278
9.5.7 Menu 6 Configuration UA 131 DD.........................................................................................................279
9.6 Controller type UA 141 - menu tree ...................................................................................................288
9.6.1 Main menu UA 141................................................................................................................................291
9.6.2 Menu 1 Actual Values UA 141 ...............................................................................................................292
9.6.3 Menu 2 Setpoints UA 141......................................................................................................................297
9.6.4 Menu 3 Clock UA 141............................................................................................................................304
9.6.5 Menu 4 Messages UA 141 ....................................................................................................................308
9.6.6 Menu 5 Archive UA 141.........................................................................................................................309
9.6.7 Menu 6 Configuration UA 141 ...............................................................................................................310
9.7 Controller type UA 141 NK - menu tree .............................................................................................319
9.7.1 Main menu UR 141 NK .........................................................................................................................322
9.7.2 Menu 1 Actual Values UR 141 NK.........................................................................................................323
9.7.3 Menu 2 Setpoints UR 141 NK ...............................................................................................................328
9.7.4 Menu 3 Clock UR 141 NK .....................................................................................................................336
9.7.5 Menu 4 Messages UR 141 NK..............................................................................................................340
9.7.6 Menu 5 Archive UR 141 NK ..................................................................................................................341
9.7.7 Menu 6 Configuration UR 141 NK.........................................................................................................342
9.8 Controller type UA 141 TK - menu tree .............................................................................................352
9.8.1 Main menu UR 141 TK..........................................................................................................................355
9.8.2 Menu 1 Actual Values UR 141 TK .........................................................................................................356
9.8.3 Menu 2 Setpoints UR 141 TK................................................................................................................362
9.8.4 Menu 3 Clock UR 141 TK......................................................................................................................371

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9.8.5 Menu 4 Messages UR 141 TK ..............................................................................................................375
9.8.6 Menu 5 Archive UR 141 TK...................................................................................................................376
9.8.7 Menu 6 Configuration UR 141 TK .........................................................................................................377
10 Decommissioning and disposal ........................................................................................................387
10.1 Decommissioning / Demounting .......................................................................................................387
10.2 Disposal ...............................................................................................................................................387
11 Alarms and Messages of UA 400 .......................................................................................................388
11.1 Alarm signalling and monitoring .......................................................................................................390
11.1.1 Cold-room door open alarm ..................................................................................................................390
11.1.2 High or low temperature alarm ..............................................................................................................390
11.1.3 Alarm in the event of the absence of a defrost......................................................................................391
11.1.4 Sensor break alarm ...............................................................................................................................391
11.1.5 Suppression of sensor break alarm during defrosting...........................................................................391
11.1.6 Hardware fault alarm .............................................................................................................................392
11.1.7 Individual allocation of priorities ............................................................................................................393
11.1.8 Alarm routes ..........................................................................................................................................395
11.1.9 Termination of alarm.............................................................................................................................. 395
11.1.10 Restart...................................................................................................................................................395
11.2 Messages .............................................................................................................................................396
11.2.1 Transient alarms and messages ...........................................................................................................396
11.2.2 Message log ..........................................................................................................................................396
12 Specifications of UA 400.....................................................................................................................397
12.1 Electrical data ......................................................................................................................................397
12.2 Mechanical Data ..................................................................................................................................399
12.3 Mechanical data of the temperature sensor L243 / 5K3A1..............................................................400
13 Order numbers and accessories of UA 400 / UA 410.......................................................................401
13.1 Case controller ....................................................................................................................................401
13.2 Components ........................................................................................................................................401

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1 Conventions
1.1 Warning signs, symbols and text formatting used in this manual
Explanation of the warning signs, symbols and text formatting used in this operating and service manual:
DANGER
WARNING
CAUTION
*IfanyofthesesymbolsDANGER/WARNING/CAUTION is recognized, the user must refer to the operating
manual in order to understand the type of potential HAZARD and the required actions for avoiding the
HAZARD. Carefully observe all health and safety instructions and use particular caution in these situations.
Failure to observe the DANGER/WARNING/CAUTION symbols will cause injury (in the worst case,
severe injury or death) and/or damage to property!
ATTENTION
NOTICE
DANGER
Instructions with this symbol and/or the signal word DANGER warn the user of situations that will
cause severe injury or death if the specified instructions are not observed! *

WARNING
Instructions with this symbol and/or the signal word WARNING warn the user of situations that may
cause severe injury or death if the specified instructions are not observed! *

CAUTION
Instructions with this symbol and/or the signal word CAUTION warn the user of situations that may
cause moderate or minor injury if the specified instructions are not observed! *

ATTENTION
Instructions with this symbol and/or the signal word ATTENTION warn the user of situations that may
cause damage to property if the specified instructions are not observed! The ATTENTION symbol
highlights guidelines and regulations, instructions and proper working procedures that must be
particularly observed in order to prevent damage to and destruction of components or malfunctioning.
Failure to observe the ATTENTION symbol will cause damage to property!

NOTICE
Instructions with this symbol and/or the signal word NOTICE provide tips and useful additional
information.


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1.
2.
3.
4.
1.
2.
ELECTRIC SHOCK
Risk of fatal electric shock!
This symbol warns of danger from dangerous voltage with possible consequences such as severe injury and death. If this
symbol is seen, the user must refer to the operating manual in order to understand the type of potential HAZARD and the required
actions for avoiding the HAZARD. Carefully observe all health and safety instructions and use particular caution in these
situations.
Failure to observe the WARNING symbol will cause injury (in the worst case, severe injury or death) and/or damage to
property!
ESD - Electrostatic-sensitive components and control components
DISPOSAL
Potential negative impact on people and the environment due to non-environmentally friendly disposal.
The strike-through dustbin symbol indicates the duty to dispose of items properly. Do not dispose of this product with other
domestic waste. Please inform yourself about the local regulations for the separate disposal of electrical and electronic products.
The correct disposal of your old equipment protects people and the environment from possible negative impact.
Failure to observe the DISPOSAL symbol will cause damage to people and the environment!
1.2 Explanation of text formatting
Safety instructions or hazard warnings are composed of four elements:
Thesymbol with text (e.g. for DANGER),
a concise description of the hazard and
a description of the possible consequences.
Where applicable, a catalogue with measures for avoiding the hazard.
For example:
A general instruction consists of two elements:
Thesymbol with text (including NOTICE, if applicable) and
the text of the instruction:
For example:
Risk of destruction of the control component / controller!
Electronic components and control components (e.g. circuit boards) are sensitive to electrostatic charges. Circuit boards may only
be replaced when the power supply is disconnected. Always hold circuit boards by the edges. The guidelines for the handling of
electrostatic-sensitive components and control components must be observed at all times.
Failure to observe the ESD symbol will cause damage to property!
DANGER
Warning of dangerous electrical voltage! Risk of fatal electric shock!
Beware of external voltage at the digital inputs and outputs! Connections/plug connectors of the device
may only be plugged in, removed and/or wired when no voltage is present.

NOTICE
The current operating manual is available online from the E°EDP (Eckelmann ° Electronic
Documentation Platform) at www.eckelmann.de/elds.


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2 Safety instructions
This operating manual is part of the device. It must be kept in the vicinity of the controller as well as for future
use so that it can be consulted when required. The operating manual must be available to the operating and
maintenance personnel at all times in order to avoid operating errors. The safety regulations, instructions and
information must be strictly observed and complied with. During repairs on the entire E*LDS system, the
accident prevention regulations and general safety regulations must be strictly complied with. Important
information (safety instructions and hazard warnings) are indicated by appropriate symbols, see chapter
Conventions. Follow these instructions in order to prevent accidents and danger to life and limb, as well as
damage to the E*LDS system!
Always observe the following information:
Workontheelectricalsystemmayonlybeperformedbyauthorised, skilled personnel (accordingtothe
definition of skilled persons in DIN/VDE 0105 and IEC364) while observing the applicable
- VDE regulations
-Localsafetyregulations
-Intended Use
-FivesafetyrulesaccordingtoDGUVRegulation3
-ESDmeasures
-Operatingmanuals
For safety reasons, the equipment must not be used for any applications other than described in the
operating manual and only for the intended use.
Before using the device, check whether it is suitable for your application with regard to its limit values.
The equipment must be installed in an electrically shielded area within the switch cabinet.
Before connecting the device, it must be checked whether the power supply is suitable for the device.
When using uncoded plug connectors, it is possible to connect them so that there is a danger to life and
limb! If this cannot be ruled out, coded plug connectors must be used.
Specified ambient conditions (e.g. humidity and temperature limits, see chapter Technical Data) must be
observed and complied with at all times to prevent malfunction.
Before switching on the device, check the correct wiring of the connections.
The device must never be operated without its housing. Before opening the housing, the device must be
de-energised.
Note the maximum load of the relay contacts, see chapter Technical Data.
Note that all supply lines from and to the device, particularly those of the CAN bus and Modbus, must be
shielded or installed sufficiently far away from live cables. This prevents faulty measurements and protects
the device against electrical interference via the analogue inputs. Connection in parallel of RC elements is
recommended for applications with critical environment.
Contact the supplier in the case of any malfunction.
DANGER
Warning of dangerous electrical voltage! Danger of electric shock!
Beware of external voltage at the digital inputs and outputs! Connections/plug connectors of the device
may only be plugged in, removed and/or wired when no voltage is present.


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2.1 Disclaimer in the event of non-compliance
These operating instructions contain information on the commissioning, function, operation and maintenance
ofthecontrolsandoftheassociatedcomponents.
2.2 Requirements for the personnel
Special technical knowledge is required for planning, programming, installation, putting into service and
maintenance work. This work may only be performed by skilled, specially trained personnel. The installation,
putting into service and maintenance personnel must have training that authorises them to perform
interventions in the system and the automation system. The planning and programming personnel must be
familiar with the safety concepts of automation technology. Working on electrical systems requires special
technical knowledge. Work on electrical systems may only be performed by instructed electrically skilled
persons or under the guidance or supervision of such persons. The applicable regulations (e.g. DIN EN 60204,
EN 50178, DGUV Regulation 3, DIN-VDE 0100/0113) must be observed. The operating personnel must be
instructed in how to handle the system / machine and the controller and must be familiar with the operating
instructions.
WARNING
Warning of damage to goods!
In our experience, the transmission of fault messages is not yet functional during the putting into
service (no internet connection, no telephone line installed, etc.). It is strongly recommended in such
cases to monitor the controller via the CAN bus using a system centre, a store computer or an operator
terminal and to enable the transmission of fault messages, for example using a GSM modem via a
mobile telephone system. In standalone operation, or as an alternative to monitoring via system
centre / store computer / operator terminal, an available alarm contact on the controller must be used
to enable the transmission of fault messages via a telephone network.

For more information, refer to E*LDS basics, safety instructions, CAN bus & Modbus.

Observance of these operating instructions is a prerequisite for safe and trouble-free operation.


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2.3 Intended use
This control system may only be used for the purpose for which it is intended: The UA 400 CC / UA 400 AC
control system has been designed for use as case controller in commercial and industrial refrigeration systems
with the intended functional scope as described in these operating instructions, and it is to be used under the
environmental conditions in these instructions.
Read the safety instructions and the instructions for installation and putting into service, operation and
maintenance. THEN start the commissioning and/or operation of the machine / system.
The safety and functionality of the machine / system are only guaranteed for this intended application.
Never use the machine / system, its components, control components or parts for any other purpose.
The system must not be put into operation until conformity with the applicable EU Directives has been
established for the entire system.
2.4 Five safety rules according to DGUV Regulation 3
The following rules must be strictly observed!
1. Disconnect: The entire system to be worked on must be disconnected from the power supply at all poles.
2. Secure against reconnection: Attach information signs to the disconnected operating equipment stating:
What has been disconnected.
Reason for the disconnection.
Name of the person who made the disconnection.
Reconnection must be prevented using a suitable lock (e.g. padlock).
3. Prove dead (authorised skilled personnel only):
Check voltmeter just before use.
Prove dead on all poles at the disconnection point.
Prove dead on all poles at the work area.
4. Ground and short-circuit:Allelectricalpartsattheworkareamust be grounded and then short-
circuited.
5. Cover or block off adjacent live parts:Ifthereisliveequipmentadjacenttotheworkarea,itmustbe
covered using appropriate materials (e.g. insulation blankets / plates).
DANGER
Warning of dangerous electrical voltage! Warning of dangerous electrical voltage! Danger of
electric shock!
Beware of a possible external power supply! BEFORE connecting and disconnecting it must be
checked that no voltage is present at the controller! Connections/plug connectors of the device may
only be plugged in, removed and/or wired when no voltage is present.
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2.5 Electrostatic-sensitive components and control components (ESD)
All electrostatic-sensitive components and control components (referred to as "ESD" below) are labelled with
the warning sign shown. Electrostatic charges arise from friction of insulating materials (e.g. floor covering,
items of clothing made of synthetic fibres etc.). Even small charges can result in damage to or destruction of
components. Such damage is not always immediately noticeable; in some cases, it does not lead to failure until
after a certain operating time.
2.5.1 ESD - Rules for handling and working
Transport and store ESDs only in the protective packaging provided.
Avoid materials that may produce electrostatic discharge, for example
Plastic containers and table tops
Synthetic fibre clothing
Plastic-soled shoes
Plastic file covers
Styrofoam packaging
Computer monitors, etc.
Preferably wear the following:
Cotton work clothes
ESD shoes with conductive soles or leather soles
Use the following:
Conductive flooring
ESD workstations equipped with suitable tools (grounded soldering guns, antistatic wrist straps, etc.)
Conductive ESD bags, conductive plastic containers, IC tubes or cartons lined with conductive foam
Containers and worktops made of wood, metal or conductive plastics or paper bags
2.6 Abbreviations used
DGUV Regulation 3 - Accident Prevention Regulation for Electrical Systems and Equipment
(previously: BGV A3-Employer’sLiabilityAssociationRegulationforOccupationalHealthandSafety)
DINDeutschesInstitutfürNormung e.V. (German Standardisation Institute)
EDP: Electronic Documentation Platform of Eckelmann AG
ESDElectrostatic-SensitiveDevice
ESDElectro-staticdischarge (ElectroSensitiveDevices)
IECInternationalElectricCommittee
VDEVerbandderElektrotechnikElektronik Informationstechnik e.V. (German Association for Electrical,
Electronic and Information Technologies)
ATTENTION
Risk of destruction of the control component / controller! Electronic components
and control components (e.g. circuit boards) are sensitive to electrostatic
charges.Therefore, the guidelines for handling electrostatic-sensitive components and
control components must be strictly observed.
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3 System Design of UA 400
Figure: UA 400 AC - full configuration
3.1 Application
The UA 400 case controller for thermostatic expansion valves (TEV), is suitable for the control and monitoring
of up to two temperature zones in refrigerated display cases and cold rooms for normal cooling and low
temperature refrigeration (NT/LT).
The appropriate application for refrigerated shelves, refrigerated display cases, island freezers and freezer
rooms can be simply set using the DIP switches on the controller. Factory settings for the desired application,
tired and tested in praxis, are then loaded.
The use of the case controller for electronic expansion valves offers decisive advantages thanks to a reduced
pressure difference between the high and low pressure sides, lower superheat at the evaporator as well as
constant conditions for the goods and evaporator thanks to continual regulation. The adaptive suction pressure
control generates further savings potential thanks to the load independent increase in suction pressure.
A range of functions for cost and energy saving such as defrost on demand, latent heat utilisation, intelligent fan
control, enthalpy controlled frame heating and the constant temperature control of the goods are available with
this case controller.
In order to fully utilise its performance features the controller is typically connected to the CAN bus, through
which it communicates with further control and monitoring components across the entire network.
Via the CAN bus an intelligent data exchange is carried out with the following system components:
System Centre / Store computer: Archiving of the operating data as well as alarm and message
management, Connection to LDSWin for analysis, configuration and evaluation
Pack controller: Data exchange between the E*LDS components, Consumer lock (emergency function in
the event of pack failure)
ABT300xOperatorInterfaceandonetofourBT30TemperatureDisplayscanbeconnectedtothecontroller
when required. Electrical connections are described in Section Pin and Terminal Assignments of UA 400.

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3.2 Hardware
The case controller is housed in a plastic casing for DIN rail mounting and does not require any further optional
expansion modules. Up to 99 case controllers can be used within the LDS system. As required, a BT 300 x
Operator Interface and up to 4 BT 30 Temperature Displays can be connected. For the direct parameterisation
via LDSWin or for a firmware update, the controller can be connected to a laptop or PC via the USB interface.
TheapplicationrangeofthecasecontrollerisdescribedinmoredetailinchapterVersions.
The following diagram illustrates the system architecture of the UA 410 AC case controller (complete):
Ports
CAN bus: Communication in E*LDS-System, new version
DISPLAY: Connection for BT 300x Operator Interface and up to four BT 30 Temperature Displays
CI 320: Communication with LDSWin software / Connection to the legacy system CI 320
USB: For conducting a firmware update
Inputs/outputs
4 digital inputs 230 V AC, floating
10 analog inputs Connection for two-wire NTC temperature sensors
Only UA 410 AC:2 x analogue inputs 4..20 mA - currently without function
Outputs
3 relay output 230 V AC / 6 A (changeover)
4 relay outputs 230 V AC / 6 A (N.O.)
2 transistor outputs 24 V DC / 50 mA (for lighting control and frame heater)
Only UA 410 AC:2 x analogue outputs 0..10 V DC - currently without function
Real-time clock
Only UA 400 AC: Battery-backed, lithium cell
ForprecisedetailsofthedifferentfeaturesofthecontrollersUA400CCandUA400AC
seechapterController types. The connection and terminal configurations are described in
thechapterPin and Terminal Assignments of UA 400.
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4 Applications of UA 400
4.1 Versions
Distinguishing features of the case controllers:
UA 400 CC * UA 400 AC *
(complete design)
For DIN rail mounting • •
For integration in the CAN bus E*LDS system • •
Replacement controller for UA 300 • •
Replacement controller for the LDS1 system (connection to the
LDS1 system via the CI320 interface)
•
Suitable for standalone operation •
With integrated real-time clock (lithium cell power reserve) •
With integrated archive memory for data recording •
Abbreviations used
CCstandsforCAN bus and Cabinet / DIN rail mounting(C=withCANbusandC=DINrailmounting).
ACstandsforAll in one and Cabinet / DIN rail mounting(All=withCANbusandreal-timeclockandC=
DIN rail mounting).
* Special feature: The controller is available in two device generations; the DIP switch provides a
quick distinguishing feature:
1st generation: since 2011 (8-way DIP switch)
2nd generation:fromOct./Nov.2018(9-wayDIPswitch)
Note: The range of functions described in this operating manual refers to both device generations.
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4.2 Controller types
Case controllers for refrigeration points with thermostatic expansion valves contain a range of different
controller types with different fields of application which are summarised as follows:
Controller type Applications
Case
contr
oller
UA 111 Multidecks without defrost heater
UA 111 D Multidecks without defrost heater with twin compressor pack
UA 121 Normal temperature (NT) refrigeration (multidecks, islands, chests, counters) with defrost heater
UA 131 without fan
control
UA 131 with fan
control
Low-temperature (LT) refrigeration (islands, chests, cabinets, freezer set) with defrost heater, NT cases
with defrost heater
UA 131 LS with
enhanced fan control
Low-temperature (LT) refrigeration (islands, chests, cabinets, freezer set) with defrost heater, NT cases
with defrost heater
UA 131 DD The controller type has been specially developed for use in refrigerated cases that are operated on a
refrigeration pack system with 2-pipe hot gas defrost. Since version V2.20, it has replaced the controller
type UA 131 A that was suitable for LT islands with twin compressor pack.
UA 141 Service counters without defrost heater
Cold
room
contr
oller
UR 141 NK NT cold rooms with / without defrost heater
UR 141 TK NT / LT cold rooms with / without defrost heater and hot gas defrost
For definition of the basic control action, only one controller type can be set, which is set using the DIP
switch S3:
Special feature: Two device generations are available. The DIP switch S3 provides a quick distinguishing
feature:
2nd generation controller
(from Oct. / Nov. 2018)
1st generation controller
(since 2011)
Characteristic: 9-pole DIP switch Characteristic: 8-pole DIP switch
Example: Setting of the coding switches for the controller type UA 131 E; for details, see chapter Setting of the
controller type and master/slave mode.

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Controller type or master / slave mode DIP switch S3 (switch positions of the coding switches 1 .. 9)
1234
Master /
Slave mode
5 6 7 8 9
Nor
mal
Ope
rati
on /
Fir
mw
are
Upd
ate
(onl
y
2nd
gen
erat
ion
con
troll
ers)
Case controller UA 111 OFF OFF OFF ON/OFF OFF OFF OFF OFF ON
UA 111 D OFF ON ON ON/OFF OFF OFF OFF OFF ON
UA 121 ON OFF OFF ON/OFF OFF OFF OFF OFF ON
UA 131 without
fan control
UA 131 with fan
control
(terminals 73/74)
OFF ON OFF ON/OFF OFF
ON
OFF OFF OFF ON
UA 131 LS with
enhanced fan
control
(terminals
15/16/18)
ON ON ON ON/OFF ON OFF OFF OFF ON
UA 131 DD ON ON ON OFF OFF OFF OFF OFF ON
UA 141 ON ON OFF ON/OFF OFF OFF OFF OFF ON
Cold room controller UR 141 NK OFF OFF ON ON/OFF OFF OFF OFF OFF ON
UR 141 TK ON OFF ON ON/OFF OFF OFF OFF OFF ON
The controller can be operated via
a central computer e.g. via network / modem with connection to the system centre / store computer,
the system centre, a store computer or an operator terminal,
a local BT 300 operator interface x via the DISPLAY interface on the controller or
a laptop (PC) with the PC software LDSWin connected via USB.
Operation with an unsupported DIP switch setting is not permitted. In the event of change of the
controller type, all parameters are reset to their factory settings.
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For more details, see chapter Operation of UA 400.
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4.3 Updating firmware
The case controller is supplied with the current firmware, ready for operation. Future software versions can be
loadedintothecasecontrollerasrequiredbymeansofafirmwareupdate,andthusupdated.
Danger data loss!Insomecasesachangeoffirmwareversioncanleadtothelossofallthesetpoints
in the case controller. As a precaution, the settings must be backed up by saving them to the LDSWin
PCsoftware,priortotheupdate.Afterthefirmwareupdatethebackupsettingscanbereloadedinto
the controller from LDSWin. A software update is only to be carried out by trained staff or factory-side
bythemanufacturer.FurtherdetailsonfirmwareupdatescanbefoundinchapterFirmware Update.
