HMI Systems

Contact Data

MRS Electronic GmbH & Co. KG
Klaus-Gutsch-Str. 7
78628 Rottweil
Germany

Telephone: +49 741 28070

Internet: https://www.mrs-electronic.com

E-mail: info@mrs-electronic.com

Product

Product designation: HMI Systems

Types:
1.046 Touch Panel
1.145 MConn 7
1.157 MConn Mini
1.502 TConn 4.3
1.503 TConn 7

Serial Number: see type plate

Document Information

Name: HMI_OI1_1.2

Version: 1.2

Date: 12/2024

The original operating instructions were composed in German.

MRS Electronic GmbH & Co. KG compiled this document with the utmost diligence and based on the current state of technology. MRS Electronic GmbH & Co. KG will not assume any liability or responsibility for errors in content or form, missing updates as well as any possibly resulting damages or drawbacks.

Products are developed according to European norms and standards. Use is currently limited to the European Economic Area (EEA). For use in other areas, market access research must be carried out beforehand. This can be done by the market introducer, or MRS can be contacted to discuss proceeding.

1. User Information

1.1. About These Operating Instructions

The manufacturer MRS Electronic GmbH & Co. KG delivered this product in its entirety and functionally sound. The operating instructions provide information about how to:

• Install the product
• Service the product (cleaning)
• Uninstall the product
• Dispose of the product

Read these operating instructions thoroughly and completely before working with the product. MRS strives to compile all information for safe and complete operation. For unanswered questions, please contact MRS.

Storage and transfer of the operating instructions

These instructions and all other product-related documentation must always be kept on hand and available in the vicinity of the product.

Target group of the operating instructions

These instructions address trained experts familiar with handling electronic assemblies. Trained experts can assess tasks and recognize possible dangers due to their training, knowledge, experience, and understanding of relevant standards and regulations.

Validity of the operating instructions

The validity of these instructions begins with the transfer of the product from MRS to the operator. The version number and approval date are in the footer. Changes to these instructions are possible at any time without prior notice.

INFORMATION ℹ️ The current version replaces all previous versions.

Warning information in the operating instructions

The operating instructions contain warning information before a call to action, including risks of property damage or personal injury. Measures for averting risks must be implemented. Warning information is structured as follows:

• DANGER! SOURCE AND CONSEQUENCE: Plus explanation, where needed. Prevention.
• Warning symbol: ⚠️ (Warning triangle) indicates the danger.
• Signal word: Specifies the seriousness of the danger.
• Source: Designates the type or source of the danger.
• Consequence: Specifies the consequences in case of noncompliance.
• Prevention: Informs how to avert the danger.

DANGER! Designates an immediate, serious threat leading to certain serious injury or death if not averted.

WARNING! Designates a possible threat leading to serious injury or death if not averted.

CAUTION! Designates a potentially dangerous situation leading to mild or medium property damage or physical injury if not averted.

INFORMATION ℹ️ Sections with this symbol provide important information about the product or how to handle it.

Symbols used in the operating instructions

• General warning sign: ⚠️
• Beware of electrical current: ⚡
• Beware of hot surface: ♨️

1.2. Copyright

These operating instructions contain copyright-protected information. Contents or excerpts may not be copied or reproduced without prior consent from the manufacturer.

1.3. Warranty Conditions

See the General Terms and Conditions MRS Electronic GmbH & Co. KG at https://www.mrs-electronic.com/en/terms.

A warranty/guarantee claim is valid only if the warranty seal is intact. If the battery needs replacement early (see chapter 10), the product must be sent to MRS for warranty service.

2. Safety

This chapter contains all information for safely installing and operating the product.

2.1. Hazards

The HMI system (control unit) is built with the latest technology and recognized safety regulations. Improper use can endanger persons and property. Non-compliance with work safety rules may result in damages. This section describes possible hazards during assembly, installation, and commissioning.

Faulty operations

Faulty software, circuits, or parameter settings can cause unforeseen reactions or malfunctions.

WARNING! DANGER DUE TO MALFUNCTION OF THE COMPLETE SYSTEM: Unforeseen reactions or malfunctions can endanger people and machines. Ensure the control unit has proper software and that circuits and parameters are compliant with the hardware.

Moving components

The complete system may create unforeseen dangers during commissioning and servicing.

WARNING! SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS: Danger due to unprotected moving components. Before any work, shut down the system and secure it against unintended restart. Ensure the complete system and all parts are in a safe state before commissioning.

Touching of contacts and pins

WARNING! DANGER DUE TO MISSING PROTECTION OF TOUCHING!: Ensure protection of contacts and pins. Use the corresponding mating plug from the accessories list for contact protection.

Non-compliance with IP protection class

WARNING! DANGER DUE TO NON-COMPLIANCE WITH THE IP PROTECTION CLASS!: Ensure compliance with the specified IP protection class in the data sheet. Use the corresponding mating plug from the accessories list for IP protection.

Elevated temperature

CAUTION! DANGER OF BURNS!: The control unit casing may be hot. Do not touch the casing and allow system components to cool down before working on the system.

2.2. Staff Qualifications

These instructions refer to the qualifications of employees for installation and maintenance. The three groups are:

• Specialists/Experts
• Skilled persons
• Authorized persons

This product is not suitable for individuals (including children) who are mentally or physically disabled, lack experience, or have insufficient knowledge, unless supervised or trained by a responsible person.

Specialists/Experts

Specialists and experts are fitters or electricians capable of assuming tasks like transport, assembly, and installation, with instructions from an authorized person. They must be experienced in handling the product.

Skilled persons

Skilled persons have sufficient knowledge from specialist training and are familiar with national occupational protection provisions, accident prevention regulations, guidelines, and recognized rules of technology. They must be capable of assessing work results and familiarizing themselves with these operating instructions.

Authorized persons

Authorized persons are permitted to perform work due to legal regulations or approval by MRS for specific tasks.

2.3. Obligations of the Manufacturer of Complete Systems

• System development, installation, and commissioning of electric systems must be performed by trained and experienced staff (see Chapter 2.2).
• Ensure no defective or faulty control units are used. Replace faulty units immediately.
• Ensure the control unit's circuitry and programming do not lead to safety-relevant malfunctions in case of failure.
• The manufacturer is responsible for the correct connection of all peripherals (cable profiles, protection against touching, plugs, crimps, sensor/actuator selection/connection).
• The control unit must not be opened.
• No changes or repairs are permitted on the control unit.
• If the control unit is dropped, it must be returned to MRS for checking.
• Inform the end customer about all potential dangers.

The manufacturer must also consider the following aspects when using the control unit:

• Wiring suggestions from MRS do not constitute systematic responsibility for complete systems.
• Safe operation cannot be guaranteed for control units used as prototypes or samples.
• Faulty circuitry and programming can lead to unforeseen signals.
• Faulty programming or parameter settings can lead to dangers during operation.
• Ensure the electric system supply, final stages, and external sensor supply are shut down jointly when the control unit is released.
• Control units without factory-made software programmed more than 500 times may not be used in complete systems.

The risk of accidents is reduced if the manufacturer observes the following:

• Adherence to statutory regulations for accident prevention, occupational safety, and environmental protection.
• Provision of all required installation and maintenance documents.
• Monitoring of the cleanliness of the control unit and the complete system.
• Clear specification of responsibilities for assembly and regular instruction of assembly and maintenance staff.
• Any work on electric energy sources is dangerous; unfamiliar persons may cause harm. Installation and maintenance staff must be instructed by the manufacturer regarding dangers, safety measures, and provisions before starting work.

3. Product Description

HMI systems with radio features from MRS Electronic extend existing CAN controllers with radio features and can also function as stand-alone PLC controllers.

Touch Panel

Programming is done with MRS Developers Studio. Customized program components can be integrated into "C-code".

MConn 7 and MConn Mini

Programming is done with the software tool MobaXtern® and the matching flash programming tool MRS Developers Studio, or with a C development system.

TConn 4.3 and TConn 7

Application programming is done via OPUS Projektor Tool, C/C++, or CODESYS.

4. Transport and Storage

4.1. Transport

The product must be packed in suitable transport packaging and secured against sliding. Statutory provisions for securing loads must be observed during transport.

If the control unit falls, it may no longer be used and must be returned to MRS for checking.

CAUTION! The product MConn 7 contains a lithium metal button cell (< 1 g lithium). It must be registered as dangerous goods with the transport company. Observe applicable country/transport requirements and obtain information from your transport company.

4.2. Storage

Store the product in a dry, dark place (no direct sunlight) in a clean, lockable room. Observe permissible environmental conditions in the data sheet.

CAUTION! The product MConn 7 contains a lithium metal button cell (< 1 g lithium). It must be stored at least 2.5 m away from flammable materials and in accordance with hazard regulations.

5. Intended Use

The control unit is used to control electric systems or sub-systems in vehicles and self-propelled work machines and may only be used for this purpose.

You are within regulations if:

• The control unit is operated within specified and approved operating ranges.
• You strictly adhere to the operating instructions and do not engage in unauthorized actions that risk safety or functionality.
• You comply with all specified safety instructions.

WARNING! DANGER DUE TO UNINTENDED USE!: The control unit is intended only for vehicles and self-propelled work machines. Application in safety-relevant system parts for functional safety is not permitted. Do not use the control unit in explosive areas.

Misuse

• Using the product in conditions differing from specifications.
• Non-compliance with safety, assembly, commissioning, maintenance, and disposal information.
• Conversions and changes to the control unit.
• Using damaged or corroded parts, seals, or cables.
• Operation with access to live parts.
• Operation without intended safety measures.

MRS guarantees/is liable only for the control unit corresponding to published specifications. Use contrary to these instructions or the data sheet impairs protection and voids the warranty.

6. Assembly

Assembly work may only be performed by qualified staff (see Chapter 2.2). The control unit may only be operated after installation in a fixed location.

INFORMATION ℹ️ If the control unit falls, it may no longer be used and must be returned to MRS for checking.

6.1. Mounting Location

Select a mounting location subjected to as low mechanical and thermal load as possible. The control unit must not be exposed to chemicals.

INFORMATION ℹ️ Observe the permissible environmental conditions in the data sheet.

6.2. Mounting Position

Mount the control unit with connectors pointing downwards to allow condensation water to flow off. Individual seals of cables/wires prevent water entry. Ensure IP protection class and protection against touching using appropriate accessories from the data sheet.

6.3. Fastening

Observe instructions in Chapter 7 Electric Installation.

Touch Panel, TConn 4.3, and TConn 7

Fastener selection, connection securing, and tightening torque are determined by the manufacturer of the complete system.

MConn 7

Fastener selection, connection securing, and tightening torque are determined by the manufacturer of the complete system. Unless specified otherwise, use flat-head screws fastened with a torque of min. 1.6 Nm and max. 3 Nm. Observe specified hole spacing in the data sheet.

MConn Mini

Fastener selection, connection securing, and tightening torque are determined by the manufacturer of the complete system. Unless specified otherwise, use flat-head screws fastened with a torque of min. 1.6 Nm and max. 2 Nm. Observe specified hole spacing in the data sheet.

7. Electric Installation and Wiring

7.1. Electric Installation

Electric installation work may only be performed by qualified staff (see Chapter 2.2). Installation must be performed in idle condition. The control unit must never be connected or disconnected on-load or when live.

WARNING! SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS: Danger due to unprotected moving components. Before performing any work, shut down the complete system and secure it against unintended restart. Ensure the complete system and all parts are in a safe state. Ensure the control unit is connected correctly and check the pin assignment.

Control unit with plugs and flat plugs (pursuant to ISO 7588-1: 1998-09)

1. Ensure the correct cable harness is connected to the control unit, following the connection diagram and system documents.
2. Ensure the mating plug of the cable harness (not included) is compatible.
3. Ensure the control unit is free of dirt and moisture.
4. Ensure the mate plug of the cable harness (not included) shows no damages from overheating, insulation damage, or corrosion.
5. Ensure the mating plug of the cable harness (not included) is free of dirt and moisture.
6. Connect the plug connector until the locking catch latches or the locking mechanism (optional) can be actuated.
7. Lock the plug or ensure the grommet (optional) of the mating plug is fully attached.
8. If used in a vibrating environment, secure the control unit with a latch to prevent it from shaking loose.
9. Close open pins with blind plugs to prevent liquids from entering.

The commissioning process can now be performed (see Chapter 8).

7.2. Wiring

INFORMATION ℹ️ Always use an external fuse in the power supply line to protect against overvoltage. Refer to the data sheet for correct fuse rating.

• Wiring must be connected with utmost diligence.
• All cables and their laying must comply with applicable regulations.
• Connected cables must be suitable for temperatures min. 10 °C above the maximum permitted environmental temperature.
• Cables must comply with requirements and wire cross-sections specified in the technical data.
• When laying cables, exclude mechanical damage to wire insulation on sharp edges or moving metal parts.
• Cables must be laid strain-relieved and friction-free.
• Cable routing must ensure the cable harness moves identically to the controller/plug movement (Attachment controller/cable/strain relief on the same underground). Strain relief is necessary (see Figure 1).

Figure 1: Strain relief of the cable harness (example). 100 mm (max.) are mandatory; control unit may vary.

8. Commissioning

Commissioning work may only be performed by qualified staff (see Chapter 2.2). The unit may only be commissioned if the complete system complies with applicable guidelines and regulations.

INFORMATION ℹ️ MRS recommends a functional test on site.

WARNING! SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS: Danger due to unprotected moving components. Before commissioning, ensure the complete system and all parts are in a safe state. If necessary, secure all hazard areas with barrier tapes.

The operator must ensure:

• The correct software is embedded and corresponds with the circuitry and parameter setting of the hardware (for MRS units without software).
• No persons are present in the vicinity of the complete system.
• The complete system is in a safe state.
• Commissioning is performed in a safe environment (horizontal and solid ground, no weather impact).

9. Software

Installation and/or replacement of device firmware/software must be performed by MRS Electronic GmbH & Co. KG or an authorized partner for the warranty to remain valid.

INFORMATION ℹ️ Control units (Touch Panel, MConn 7, and MConn Mini) supplied without software can be programmed using MRS Developers Studio. More information is available in the MRS Developers Studio manual.

10. Fault Removal and Maintenance

10.1. Maintenance

INFORMATION ℹ️ The control units (except MConn 7) are maintenance-free and may not be opened. If the control unit casing, locking catch, seals, or flat plugs show damage, it must be shut down.

The control unit MConn 7 has an internally installed ML621 button cell. To replace it, remove the unit from the vehicle (see chapter 11). Lay the control unit flat on a clean surface. Remove the eight Phillips screws on the back of the housing (see Figure 2).

Figure 2: Schematic representation – Back of the MConn 7 and localisation of the eight Phillips screws (blue circles).

Carefully detach the back of the control unit and fold it upwards. Be careful not to damage ribbon cables.

Remove the battery from the holder (see Figure 3) with a blunt, non-conductive object and reinsert the new battery of the same type with the positive contact facing upwards.

Figure 3: Localisation of the battery (white circle) on the PCB of the MConn 7.

Reassemble in reverse order and reinstall the control unit in the vehicle, following Chapter 6 Assembly instructions.

Fault removal and cleaning work may only be performed by qualified staff (see Chapter 2.2) in idle condition. Remove the control unit for these tasks. It must never be connected or disconnected on-load or when live. After completion, follow Chapter 7 Electric Installation instructions.

WARNING! SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS: Danger due to unprotected moving components. Before performing any work, shut down the complete system and secure it against unintended restart. Ensure the complete system and all parts are in a safe state. Remove the control unit for fault removal and cleaning.

CAUTION! DANGER OF BURNS!: The control unit casing may be hot. Do not touch the casing and allow system components to cool down before working on the system.

10.2. Cleaning

CAUTION! DAMAGE OR SYSTEM FAILURE DUE TO IMPROPER CLEANING!: The control unit may be damaged by improper cleaning, causing unintended reactions. Do not clean with a high-pressure cleaner or steam jet. Remove the control unit for fault removal and cleaning.

INFORMATION ℹ️ Damages due to improper cleaning agents! Do not clean with high-pressure cleaners, steam jets, aggressive solvents, or scouring agents.

Clean the control unit only in a clean, dust-free environment using a damp, non-scratch cloth.

1. Follow all safety instructions and deenergize the complete system.
2. Do not use aggressive solvents or scouring agents.
3. Let the control unit dry.

Install the clean control unit according to Chapter 7 Electric Installation.

10.3. Fault Removal

1. Ensure fault removal measures are performed in a safe environment (horizontal, solid ground, no weather impact).
2. Follow all safety instructions and deenergize the complete system.
3. Check that the system is intact. Remove damaged control units and dispose of them according to national environmental regulations.
4. Remove the mate plug and/or the control unit from the slot.
5. Check all flat plugs, connectors, and pins for mechanical damages due to overheating, insulation damage, and corrosion.

Damaged control units and units with corroded contacts must be removed and disposed of according to national environmental regulations.

Dry the control unit and contacts if moisture is present. If needed, clean all contacts.

Faulty operations: In case of faulty operations, check the software, circuitry, and parameter settings.

11. Disassembly and Disposal

11.1. Disassembly

Disassembly may only be performed by qualified staff (see Chapter 2.2) in idle condition.

WARNING! SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS: Danger due to unprotected moving components. Before performing any work, shut down the complete system and secure it against unintended restart. Before disassembling, ensure the complete system and all parts are in a safe state.

CAUTION! DANGER OF BURNS!: The control unit casing may be hot. Do not touch the casing and allow system components to cool down before working on the system.

Control unit with plug connectors

1. Unlock the lock and/or the locking catch of the mate plug.
2. Gently remove the mate plug.
3. Loosen all screw connections and remove the control unit.

11.2. Disposal

Once the product is disused, it must be disposed of in accordance with national environmental regulations for vehicles and work machines.

HINWEIS ℹ️ The MConn 7 product contains a lithium metal button cell. Please observe the applicable national disposal regulations for batteries.