Lauda LRZ 918 User manual

Interface module LRZ 918 / 925
LRZ 918 – Pt100/LiBus module (small cover)
Operation manual
LRZ 925 – Pt100/LiBus module (large cover)
V1R47 Read this manual prior to performing any task!

Translation of the original operation manual
Manufacturer:
LAUDA DR. R. WOBSER GMBH & CO. KG
Laudaplatz 1
97922 Lauda-Königshofen
Germany
Telephone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: https://www.lauda.de
Q4DA-E_13-015, 1, en_US 10/19/2021 ©LAUDA 2021
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Table of contents
1 General................................................................................................................................................................................... 4
1.1 Intended use................................................................................................................................................................... 4
1.2 Compatibility................................................................................................................................................................. 4
1.3 Technical changes.......................................................................................................................................................... 5
1.4 Warranty conditions...................................................................................................................................................... 5
1.5 Copyright........................................................................................................................................................................ 5
1.6 Contact LAUDA........................................................................................................................................................... 6
2 Safety...................................................................................................................................................................................... 7
2.1 General safety information and warnings................................................................................................................... 7
2.2 Information about the interface module.................................................................................................................... 8
2.3 Personnel qualification.................................................................................................................................................. 8
3 Unpacking.............................................................................................................................................................................. 9
4 Device description............................................................................................................................................................... 10
4.1 Purpose......................................................................................................................................................................... 10
4.2 Structure....................................................................................................................................................................... 10
4.3 Coding switch................................................................................................................................................................ 11
5 Before starting up................................................................................................................................................................ 12
5.1 Installing the interface module................................................................................................................................... 12
5.2 Using the module box.................................................................................................................................................. 14
6 Commissioning..................................................................................................................................................................... 15
6.1 Contact assignment..................................................................................................................................................... 15
6.2 Software update........................................................................................................................................................... 16
7 Operation.............................................................................................................................................................................. 17
7.1 Pt100 interface............................................................................................................................................................ 17
7.2 LiBus interface.............................................................................................................................................................. 17
8 Maintenance......................................................................................................................................................................... 18
9 Faults..................................................................................................................................................................................... 19
9.1 Error............................................................................................................................................................................... 19
9.2 Warning........................................................................................................................................................................ 20
10 Decommissioning................................................................................................................................................................. 21
11 Disposal................................................................................................................................................................................ 22
12 Accessories........................................................................................................................................................................... 23
13 Technical data...................................................................................................................................................................... 24
14 Index..................................................................................................................................................................................... 25
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1 General
Many types of LAUDA constant temperature equipment have vacant
module slots for installing additional interfaces. The number, size and
arrangement of the module slots vary depending on the device and are
described in the operating manual accompanying the constant temperature
equipment. Two additional module slots available as accessories can be fitted
to a LiBus module box, which is then connected as an external casing to the
LiBus interface on the constant temperature equipment.
This operating manual describes how to install and configure the following
interface modules:
Pt100/LiBus module (small cover), catalog no. LRZ 918
Pt100/LiBus module (large cover), catalog no. LRZ 925
1.1 Intended use
The interface module can only be operated as intended and under the
conditions specified in this operating manual.
The interface module is an accessory that increases the connections options
of LAUDA constant temperature equipment. It may only be installed in con-
stant temperature equipment that supports the interface provided. Refer to
the chapter "Compatibility” in this operating manual for a list of compatible
product lines.
Operation of the interface module is also permitted in combination with the
LiBus module box (LAUDA catalog no. LCZ 9727). This operating manual
also contains a description of how to install and connect up the module box.
Operation after incomplete assembly
Operation on incompatible constant temperature equipment
Operation using cables or connections that are defective or do not
confirm to standards
1.2 Compatibility
Pt100/LiBus module (small cover), LRZ 918
This interface module is available as an accessory for the following LAUDA
product lines, which do not come with a Pt100 connection as standard:
ECO
Variocool
Pt100/LiBus module (large cover), LRZ 925
This interface module is an accessory designed to provide a Pt100 connec-
tion for the following LAUDA product lines:
Integral IN
Variocool NRTL
Reasonably foreseeable improper use
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Operating interfaces of the same type
Several LiBus interfaces can be used on constant temperature
equipment.
Constant temperature equipment from the Integral IN and Var-
iocool NRTL product lines are designed for operation with two
Pt100‑interfaces. The address of the additional installed Pt100/
LiBus module must be changed using the coding switch, see
ÄChapter 4.3 “Coding switch” on page 11.
1.3 Technical changes
All technical modifications are prohibited without the written consent of the
manufacturer. Damage resulting from a failure to observe this condition will
void all warranty claims.
However, LAUDA reserves the right to make general technical modifica-
tions.
1.4 Warranty conditions
LAUDA grants a standard warranty of one year.
1.5 Copyright
This operating manual was written in German, checked and approved. If
the content of other language editions deviates from the German edition,
the information in the German edition shall take precedence. If you notice
any discrepancies in the content, please contact LAUDA Service, see
ÄChapter 1.6 “Contact LAUDA” on page 6.
Company and product names mentioned in the operating manual are usually
registered trademarks of the respective companies and are therefore subject
to brand and patent protection. Some of the images used may also show
accessories that are not included in the delivery.
All rights reserved, including those relating to technical modifications and
translations. This operating manual or parts thereof may not be modified,
translated or used in any other capacity without the written consent of
LAUDA. Violation of this may obligate the violator to the payment of dam-
ages. Other claims reserved.
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1.6 Contact LAUDA
Contact the LAUDA Service department in the following cases:
Troubleshooting
Technical questions
Ordering accessories and spare parts
Please contact our sales department for questions relating to your specific
application.
Contact information
LAUDA Service
Phone: [phone]
Fax: [phone]
Email: [email protected]
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2 Safety
2.1 General safety information and warnings
Read this operating manual carefully before use.
Keep the operating manual in a place within easy reach of the interface
module.
This operating manual is part of the interface module. If the interface
module is passed on, the operating manual must be kept with it.
This operating manual is applicable in combination with the operating
manual of the constant temperature equipment in which the interface
module is installed.
Manuals for LAUDA products are available for download on the
LAUDA website: https://www.lauda.de
The warnings and safety instructions in this operating manual must be
observed without fail.
There are also certain requirements for personnel, see ÄChapter 2.3
“Personnel qualification” on page 8.
Warning signs Type of danger
Warning – danger zone.
Signal word Meaning
DANGER! This combination of symbol and
signal word indicates an imminently
dangerous situation that will result
in death or serious injury if it is not
avoided.
WARNING! This combination of symbol and
signal word indicates a potentially
dangerous situation that can result
in death or serious injury if it is not
avoided.
NOTICE! This combination of symbol and
signal word indicates a poten-
tially dangerous situation that can
result in material and environmental
damage if it is not avoided.
Structure of warnings
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2.2 Information about the interface module
Always disconnect the constant temperature equipment from the power
supply before installing the interface module or connecting interfaces.
Always take the recommended safety measures against electrostatic
discharge before handling interface modules.
Avoid touching the circuit board with metallic tools.
Do not start up the constant temperature equipment before installation
of the interface module is complete.
Store any unused interface modules in their packaging in accordance
with the specified ambient conditions.
Use only suitable cables of sucient length for cable connections.
Make sure that the protective screen on the cables and connec-
tors complies with EMC regulations. LAUDA recommends using pre-
assembled cables.
Always lay cables correctly so that they do not pose a tripping hazard.
Secure the laid cables and make sure that they cannot be damaged
during operation.
Check the condition of the cables and interfaces prior to each opera-
tion.
Immediately clean any soiled parts, in particular unused interfaces.
Make sure that the signals transmitted via the interface correspond to
the permitted operating parameters of the interface module.
2.3 Personnel qualification
Only specialized personnel are permitted to install interfaces modules. Spe-
cialized personnel are personnel whose education, knowledge, and experi-
ence qualify them to assess the function and risks associated with the device
and its use.
Specialized personnel
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3 Unpacking
DANGER!
Transport damage
Electric shock
Closely inspect the device for transport damage prior to
commissioning!
Never operate a device that has sustained transport
damage!
NOTICE!
Electrostatic discharge
Material damage
Always observe safety measures against electrostatic dis-
charge.
Please observe the following installation sequence:
1. Remove the interface module from its packaging.
2. If you want to store the interface module at the installation location,
use the outer packaging. This packaging is protected against static
charging.
3. After installing the equipment, dispose of the packaging materials in
line with environmental regulations, see Ä“Packaging” on page 22.
If you discover any damage on the interface module, contact
LAUDA Service immediately, see ÄChapter 1.6 “Contact
LAUDA” on page 6.
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4 Device description
4.1 Purpose
The Pt100/LiBus module was developed for the following purposes:
To connect an external Pt100 temperature probe.
To integrate an extra LiBus interface into constant temperature equip-
ment.
The abbreviation "LiBus" stands for "LAUDA internal BUS" and
refers to the CAN-based fieldbus system used in LAUDA equip-
ment.
4.2 Structure
1 LiBus socket, 4-pin
2 Cover with holes for fastening screws
3 Pt100 socket, LEMO, 1S series, 4-pin
Refer to Ä“Pt100 interface” on page 15 and Ä“LiBus interface”
on page 16 for more information on contact assignment.
Fig. 1: Pt100/LiBus module LRZ 918
Fig. 2: Pt100/LiBus module LRZ 925
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4.3 Coding switch
Operation with two external temperature probes is supported by the
Integral IN and Variocool NRTL product lines.
The following is valid for Pt100/LiBus modules with coding switch:
The printed circuit board on the Pt100/LiBus module has a coding switch for
setting the address of the Pt100 interface:
Position 0: The Pt100 interface is assigned the name External Pt100
(factory setting) in the menu of the constant temperature equipment.
Position 1: The Pt100 interface is assigned the name External Pt100-2 .
Positions 2 – 9: Currently without any function.
Only change the setting if you want to use this Pt100/LiBus module
to operate a second external temperature probe on the constant
temperature equipment.
Check the coding switch setting before installing the Pt100/LiBus
module in constant temperature equipment.
Setting the address of the second Pt100 interface:
1. Use a slotted screwdriver to set the adjusting wheel (1) on the coding
switch.
2. Turn the adjusting wheel (1) to position 1 (2) to address the Pt100
interface with the name External Pt100-2 .
Fig. 3: Pt100 module coding switch
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5 Before starting up
5.1 Installing the interface module
The interface module is connected to an internal LiBus ribbon cable and
inserted into a vacant module slot. The number and arrangement of the
module slots vary depending on the device. The module slots are protected
by a cover that is screwed onto the casing or attached to the slot opening.
WARNING!
Touching live parts
Electric shock
Disconnect the device from the power supply before
starting any installation work.
Always observe safety measures against electrostatic dis-
charge.
The module installation description essentially applies to all LAUDA
constant temperature equipment; the example diagrams here show
the installation of an analog module in constant temperature equip-
ment from the Variocool product line.
Please note that an interface module with a small cover can only
be installed in a low module slot. The fitted cover must cover the
opening on the module slot completely.
You will require two M3 x 10 screws and a suitable screwdriver to
secure the interface module.
Please observe the following installation sequence:
1. Turn o the constant temperature equipment and pull out the mains
plug.
2. If necessary, remove the screws from the cover on the relevant
module slot. If necessary, use a slotted screwdriver to prise o the
cover.
Fig. 4: Removing the cover (schematic dia-
gram)
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3. Remove the cover from the module slot.
The module slot is open. The LiBus ribbon cable is attached to the
inside of the cover and is easily accessible.
4. Disconnect the LiBus ribbon cable from the cover.
5. Connect the red plug on the LiBus ribbon cable to the red socket on
the circuit board of the interface module. Plug and socket are reverse
polarity protected: Make sure that the lug on the plug is aligned with
the recess in the socket.
The interface module is correctly connected to the constant tem-
perature equipment.
6. Slide the LiBus ribbon cable and the interface module into the module
slot.
7. Secure the cover to the casing using two M3 x 10 screws.
The new interface on the constant temperature equipment is
ready for operation.
Fig. 5: Detaching the LiBus ribbon cable
(schematic diagram)
Fig. 6: Connecting the interface module
(schematic diagram)
Fig. 7: Securing the cover (schematic dia-
gram)
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5.2 Using the module box
You can extend LAUDA constant temperature equipment by two additional
module slots using the LiBus module box. The module box is designed for
interface modules with a large cover and is connected to constant tem-
perature equipment via a vacant LiBus socket.
The socket on the constant temperature equipment bears the label LiBus.
Please observe the following installation sequence:
1. Switch o the constant temperature equipment.
2. Disconnect the cable on the module box from the constant tem-
perature equipment.
The module box is disconnected from the power supply.
3. Check which interfaces are already present on the constant tem-
perature equipment and module box.
Observe the information on interface module compatibility.
Only install an interface module with the same type of inter-
face if operation with several of these interfaces is permitted.
4. Install the required interface module in the module box. Please read
the information on installing the module box in the constant tem-
perature equipment, see chapter "Installing the interface module".
5. Position the module box close to the constant temperature equip-
ment.
6. Connect the cable on the module box to the LiBus socket on the
constant temperature equipment.
The interfaces on the module box are ready for operation.
Fig. 8: LiBus module box, catalog no.
LCZ 9727
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6 Commissioning
6.1 Contact assignment
If you have assembled the cables yourself, please note the following:
Statutory EMC requirements also apply to the cable connec-
tions. Use only shielded connection lines with shielded plugs/
sockets.
Reliably isolate all equipment connected to the extra-low
voltage inputs and outputs according to DIN EN 61140
to safeguard against dangerous contact voltages. For
example, use double or reinforced insulation according to
DIN EN 60730-1 or DIN 60950-1.
Refer to ÄChapter 12 “Accessories” on page 23 for accessory information
on assembling connection cables.
The Pt100 interface is designed as a 4-pin circular connector with screw
plug (LEMO).
Table 1: Contact assignment of Pt100 interface
Contact Function
1 + I (current path)
2 + U (voltage path)
3 - U (voltage path)
4 - I (current path)
Table 2: Circuit diagrams for Pt100 interface, depending on the cable version
2-wire Pt100 3-wire Pt100 4-wire Pt100
Pt100 interface
Fig. 9: Socket / plug contacts
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The LiBus interface is designed exclusively for operation with
LAUDA products.
The LiBus interface is designed as a 4-pin circular connector with screw plug.
When connecting a cable, note the mechanical reverse polarity protection
feature: The lug on the plug must be aligned with the recess in the socket (1).
6.2 Software update
Older software installed on constant temperature equipment may have to be
updated for the new interface to work.
1. Switch on the constant temperature equipment after installing the
new interface.
2. Check whether a software warning appears on the display:
Warning SW too old : Please contact LAUDA Service, see
ÄChapter 1.6 “Contact LAUDA” on page 6.
No software warning: Operate the constant temperature equip-
ment as normal.
LiBus interface
Fig. 10: LiBus socket reverse polarity pro-
tection
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7 Operation
7.1 Pt100 interface
After installing the Pt100/LiBus module, the main menu for the constant
temperature equipment expands so that you can select the External Pt100
parameter for some settings. The External Pt100-2 parameter is also avail-
able for constant temperature equipment with two Pt100 interfaces.
Depending on the constant temperature equipment, the parameter External
Pt100 , for example, can be selected for the following functions:
Control variable: Control the temperature control process via the
external Pt100 temperature probe.
Oset source: Control is based on the measured value provided by the
Pt100 temperature probe. However, the control set point is generated
by adding the Pt100 measured value to a specified oset value.
Follow the instructions for configuring external control variables
in the operating manual accompanying the constant temperature
equipment.
7.2 LiBus interface
After adding a LiBus interface, you can operate the constant temperature
equipment using compatible LAUDA accessories.
Always read the relevant operating manual before operating any
accessories.
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8 Maintenance
The interface module is maintenance-free.
Any dust and dirt deposits should be cleaned from the connections on the
interface module on a regular basis, especially if the interfaces are not being
used.
WARNING!
Live parts in contact with cleaning agent
Electric shock, material damage
Disconnect the device from the mains supply before
starting any cleaning work.
Water and other fluids should not be allowed to enter the
device.
NOTICE!
Repairs performed by unauthorized persons
Material damage
Only specialized personnel are permitted to carry out
repairs.
1. Use a damp cloth or brush to remove any dust and dirt deposits.
2. When using compressed air: Always set a low working pressure to
prevent mechanical damage to the connections.
If you have any questions about technical modifications, please
contact LAUDA Service, see ÄChapter 1.6 “Contact LAUDA”
on page 6.
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9 Faults
If a fault occurs, the interface distinguishes between dierent message types,
e.g. alarms, errors and warnings. The procedure for rectifying a fault depends
on the device. Follow the corresponding instructions in the operating manual
accompanying the constant temperature equipment.
If you are unable to rectify a fault, please contact LAUDA Service,
see ÄChapter 1.6 “Contact LAUDA” on page 6.
9.1 Error
The Pt100/LiBus modules recognize the following error messages:
Code * Meaning
1701 – 1704 /
2001 – 2004
Interface module hardware faulty. Contact the LAUDA department.
1705 / 2005 Clock frequency incorrect.
1706 / 2006 Distribution voltage too low.
1707 / 2007 Distribution voltage too low.
1708 / 2008 Backup memory faulty.
1710 / 2010 2-point calibration: Upper / lower point mixed up.
1711 / 2011 2-point calibration: Dierence between upper / lower measuring point too small.
1712 / 2012 2-point calibration: Dierence between upper / lower correction point too small.
1713 / 2013 2-point calibration: Dierence between upper measuring / correction point too great.
1714 / 2014 2-point calibration: Dierence between lower measuring / correction point too great.
1724 / 2024 Product line detection faulty.
* Error prefix 17 applies for interface Pt100, error prefix 20 for Pt100-2, see
ÄChapter 4.3 “Coding switch” on page 11.
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9.2 Warning
The Pt100/LiBus modules recognize the following warnings:
Code * Meaning
1701 / 2001 Bus system faulty.
1702 / 2002 Unexpected reset detected.
1703 / 2003 Temperature probe faulty; replace the temperature probe.
1707 / 2007 Implausible parameter detected.
1708 / 2008 Bus system faulty.
1709 / 2009 Unknown module detected.
1710 – 1732 /
2010 – 2032
Software of component [###] outdated. Contact the LAUDA department.
* Error prefix 17 applies for interface Pt100, error prefix 20 for Pt100-2, see
ÄChapter 4.3 “Coding switch” on page 11.
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