MRS 1.071 PWM Analog Converter

Product Information

Specifications

• Product Designation: PWM-Analog-Converter
• Types: 1.071 PWM-Analog-Converter
• Serial Number: See type plate

User Information

About These Operating Instructions

The manufacturer MRS Electronic GmbH & Co. KG (hereinafter referred to as MRS) delivered this product to you 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

It is essential to read these operating instructions thoroughly and completely before working with the product. We strive to compile all the information for safe and complete operation. However, should you have any questions not answered by these instructions, please contact MRS.

Storage and transfer of the operating instructions

These instructions as well as all other product-related documentation relevant for different applications must always be kept on hand and be available in the vicinity of the product.

Target group of the operating instructions

These instructions address trained experts who are familiar with handling electronic assemblies. Trained experts are those persons who can assess the tasks assigned to her/him and recognize possible dangers due to her/his expert training, knowledge, and experience as well as her/his knowledge of the relevant standards and regulations.

Validity of the operating instructions

The validity of these instructions goes into effect with the transfer of the product from MRS to the operator. The version number and approval date of the instructions are included in the footer. Changes to these operating instructions are possible any time and without the specification of any reasons.

Product Usage Instructions

Installation

Follow these steps to install the PWM-Analog-Converter:

1. Locate a suitable mounting location.
2. Ensure proper power supply connections.
3. Connect input and output devices according to specifications.
4. Power on the PWM-Analog-Converter.

Servicing (Cleaning)

To ensure optimal performance, periodic cleaning is recommended:

1. Power off the device and disconnect all cables.
2. Gently clean the exterior using a soft, dry cloth.
3. Avoid using liquid cleaners or abrasive materials.
4. Allow the device to dry completely before reconnecting.

Uninstallation

If you need to uninstall the PWM-Analog-Converter:

1. Power off the device and disconnect all cables.
2. Remove any mounting screws or brackets securing the device.
3. Carefully detach all connections.
4. Lift the device away from its mounting location.

Disposal

When disposing of the product:

1. Refer to local regulations for electronic waste disposal.
2. Do not dispose of in regular household waste.
3. If applicable, follow any recycling guidelines provided by MRS.

User Information

About These Operating Instructions

• The manufacturer MRS Electronic GmbH & Co. KG (hereinafter referred to as MRS) delivered this product to you 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
• It is essential to read these operating instructions thoroughly and completely before working with the product. We strive to compile all the information for safe and complete operation. However, should you have any questions not answered by these instructions, please contact MRS.

Storage and transfer of the operating instructions

• These instructions as well as all other product-related documentation relevant for different applications must always be kept on hand and be available in the vicinity of the product.

Target group of the operating instructions

• These instructions address trained experts who are familiar with handling electronic assemblies. Trained experts are those persons who can assess the tasks assigned to her/him and recognize possible dangers due to her/his expert training, knowledge and experience as well as her/his knowledge of the relevant standards and regulations.

Validity of the operating instructions

• The validity of these instructions goes into effect with the transfer of the product from MRS to the operator. The version number and approval date of the instructions are included in the footer. Changes to these operating instructions are possible any time and without the specification of any reasons.
• Warning information in the operating instructions
  The operating instructions contain warning information before a call to action which includes the risk of property damage or personal injury. The measures for averting risks described in the instructions must be implemented. Warning information is structured as follows
• 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 which will with certainty lead to serious injury or even death if the danger is not averted.

WARNING! Designates a possible threat which may lead to serious injury or even death if the danger is not averted.

CAUTION! Designates a potentially dangerous situation which may lead to mild or medium property damage or physical injury if the danger is not averted.

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

Symbols used in the operating instructions

• General warning sign.
• Beware of electrical current.
• Beware of hot surface.

Copyright

• These operating instructions contain information protected by copyright. The contents or excerpts of the contents may not be copied or reproduced in any other way without prior consent from the manufacturer.

Warranty Conditions

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

Safety

• This chapter includes all the information you should know to safely install and operate the product.

Haza

rds

• The PWM-Analog-Converter has been constructed with the newest technology and recognized safety-relevant regulations. Danger for persons and/or property may arise in case of improper use. Lack of compliance with the rules for work safety may result in damages. This section describes all the possible hazards that may be relevant during the assembly, installation and commissioning of the PWM-Analog-Converter.

Faulty operations

• Faulty software, circuits or parameter setting may cause unforeseen reactions or malfunctions through the complete system.

WARNING!

• DANGER DUE TO MALFUNCTION OF THE COMPLETE SYSTEM
• Unforeseen reactions or malfunctions of the complete system may endanger the safety of people and machines.
• Please make sure that the PWM-Analog-Converter is equipped with the proper software and that the circuits and parameter settings are compliant with the hardware.

Inappropriate operation

• The control unit may only be operated as instructed in the data sheet. The control unit may only be operated by battery, not by mains supply.

DANGER DUE TO MALFUNCTION OF THE COMPLETE SYSTEM

• Unforeseen reactions or malfunctions of the complete system may endanger the safety of people and machine.
• Please make sure that the control unit is only operated as instructed in the data sheet, and that it is only operated by battery.

Moving components

• The complete system may create unforeseen dangers when commissioning and servicing the PWM-Analog-Converter.

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 commissioning the system, please make sure that the complete system and all parts of the system are in a safe state.

Touching of contacts and pins

WARNING!

• DANGER DUE TO MISSING PROTECTION OF TOUCHING! The protection of touching contacts and pins must be ensured.
• Use the watertight socket including supplied protection caps as per the accessories list in the data sheet to ensure contact protection for contacts and pins.

Non-compliance with IP protection class

WARNING!

• DANGER DUE TO NON-COMPLIANCE WITH THE IP PROTECTION CLASS! Compliance with the IP protection class specified in the data sheet must be ensured.
• Use the watertight socket including supplied protection caps as per the accessories list in the data sheet to ensure compliance with the IP protection class specified in the data sheet.

Elevated temperature

• CAUTION!

DANGER OF BURNS!

• The casing of the PWM-Analog-Converter may exhibit an elevated temperature.
• Please do not touch the casing and let all system components cool down before working on the system.

Staff Qualifications

• These operating instructions repeatedly refer to the qualifications of the employees who can be trusted to perform various tasks for installation and maintenance. The three groups are:
• Specialists/Experts
• Skilled persons
• Authorized persons
• This product is not suitable for use by persons (incl. children) who are mentally or physically disabled or do not have enough experience or sufficient knowledge of the product unless supervised or having attended a detailed training regarding the use of the PWM-Analog-Converter by a person who is responsible for the safety of this person.

Specialists/Experts

• Specialists and experts are, for example, fitters or electrician who are capable of assuming different tasks, such as transport, assembly and installation of the product with the instructions of an authorized person. The people in question must be experienced in handling the product.

Skilled persons

• Skilled persons are those persons who have sufficient knowledge of the subject in question due to their specialist training and are familiar with the relevant national occupational protection provisions, accident prevention regulations, guidelines and generally recognized rules of technology. Skilled persons must be capable of securely assessing the results of their work and familiarize themselves with the contents of these operating instructions.

Authorized persons

• Authorized persons are those persons who are permitted to perform the work due to legal regulations or who have been approved to perform certain tasks by MRS.

Obligations of the Manufacturer of Complete Systems

• Tasks for system development, installation and commissioning of electric systems may only be performed by trained and experienced staff, see Chapter 2.2 Staff Qualifications.
• The manufacturer of the complete system must ensure that no defective or faulty PWM-Analog-Converters are used. In case of failure or malfunctions, the PWM-Analog-Converter must be replaced immediately.
• The manufacturer of the complete system must ensure that the circuity and programming of the PWM-Analog-Converter do not lead to a safety-relevant malfunction of the complete system in case of a failure or malfunction.
• The manufacturer of the complete system is responsible for the correct connection of all the peripherals (such as cable profiles, protection against touching, plugs, crimps, correct selection/connection of sensors/actuators).
• The PWM-Analog-Converter may not be opened.
• No changes and/or repairs may be performed on the PWM-Analog-Converter.
• If the PWM-Analog-Converter falls down, it may no longer be used and must be returned to MRS to be checked.
• The manufacturer of the complete system must inform the end customer about all potential dangers.

The manufacturer must also take the following aspects into consideration when using the PWM-Analog-Converter:

• PWM-Analog-Converters with wiring suggestions provided by MRS do not constitute a systematic responsibility for complete systems.
• Safe operation cannot be guaranteed for PWM-Analog-Converters used as prototypes or samples in the complete system.
• Faulty circuitry and programming of the PWM-Analog-Converter may lead to unforeseen signals to the outputs of the PWM-Analog-Converter.
• Faulty programming or parameter setting of the PWM-Analog-Converter may lead to dangers during operation of the complete system.
•  It must be ensured when the PWM-Analog-Converter is released that the supply of the electric system, of the final stages and of the external sensor supply are shut down jointly.
• PWM-Analog-Converters without factory-made software programmed more than 500 times may not be used in complete systems any longer.

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

• Adherence to the statutory regulations regarding accident prevention, occupational safety and environmental protection.
• Provision of all documents required for installation and maintenance.
• Monitoring of the cleanliness of the PWM-Analog-Converter and of the complete system.
• The responsibilities for the assembly of the PWM-Analog-Converter must be clearly specified by the manufacturer of the complete system. The assembly and maintenance staff must be regularly instructed.
• Any work and maintenance performed on electric energy sources is always associated with possible dangers. Persons not familiar with these kinds of devices and systems may cause harm to themselves and others.
• The installation and maintenance staff of a system with electric devices must be instructed by the manufacturer regarding potential dangers, required safety measures and applicable safety provisions before beginning work.

Product Description

The PWM-Analog-Converter outputs a stabilised reference voltage. This can be used to supply sensors. Because of the integrated regulator, the PWM-Analog-Converter can be used in a voltage range of 9-32 V. Further details can be found in the datasheet.

Transport and Storage

Transport

• The product must be packed in suitable transport packaging and secured against sliding around. During transport, the statutory provisions regarding securing loads must be observed. If the PWM-Analog-Converter falls down, it may no longer be used and must be returned to MRS to be checked.

Storage

• Store the product in a dry place (no dew), dark (no direct sunlight) in a clean room which can be locked. Please observe the permissible environmental conditions in the data sheet.

Intended Use

The PWM-Analog-Converter is an electromechanical switch used to switch circuits on and off in vehicles and self-propelled work machines and may only be used for this purpose.
You are within regulations:

• If the PWM-Analog-Converter is operated within the operating ranges specified and approved in the corresponding data sheet.
• If you strictly adhere to the information and sequence of tasks described in these operating instructions and do not engage in unauthorized actions which may risk your safety and the functionality of the PWM-Analog-Converter.
• If you comply with all specified safety instructions.

WARNING!

DANGER DUE TO UNINTENDED USE!

• The PWM-Analog-Converter is only intended to be used in vehicles and self-propelled work machines.
• An application in safety-relevant system parts for functional safety is not permitted.
• Please do not use the PWM-Analog-Converter in explosive areas.

Misuse

• Use of the product in conditions and requirements differing from those specified by the manufacturer in technical documentation, data sheets and operating instructions.
• Non-compliance with the safety information and information regarding assembly, commissioning, maintenance and disposal specified in the operating instructions.
• Conversions and changes of the PWM-Analog-Converter.
• Use of the PWM-Analog-Converter or parts thereof which are damaged or corroded. The same goes for seals and cables.
• Operation in a condition with access to live parts.
• Operation without the safety measures intended and provided by the manufacturer.
  • MRS only guarantees/is liable for the PWM-Analog-Converter corresponding to the published specifications. If the product is used in a way not described in these operation instructions or in the data sheet of the PWM-Analog-Converter in question, the protection of the PWM-Analog-Converter will be impaired, and the warranty claim is void.

Assembly

Assembly work may only be performed by qualified staff (see Chapter 2.1 Staff Qualifications). The aPWM-Analog-Converter may only be operated after having installed in a fixed location.

INFORMATION If the PWM-Analog-Converter falls down, it may no longer be used and must be returned to MRS to be checked.

• Mounting Location
• The mounting location must be selected as such that the PWM-Analog-Converter is subjected to as low a mechanical and thermal load as possible. The PWM-Analog-Converter may not be exposed to chemicals.
• INFORMATION Please observe the permissible environmental conditions in the data sheet.

Mounting Position

• Mount the PWM-Analog-Converter in such a way that the connectors point downwards. This ensures that possible condensation water can flow off. Individual seals of the cables/wires ensure that no water can enter the PWM-Analog-Converter. Compliance with the IP protection class and protection against touching must be ensured by using the appropriate accessories in accordance with the accessories list in the data sheet.

Fastening

• PWM-Analog-Converter with flat plugs (pursuant to ISO 7588-1: 1998-09)
• PWM-Analog-Converters with flat plugs are plugged into the plugs provided by the manufacturer of the complete system. Please observe the instructions in chapter 7 Electric Installation.

Electric Installation and Wiring

• Electric Installation
  Electric installation work may only be performed by qualified staff (see Chapter 2.1 Staff Qualifications). The electric installation of the unit may only be performed in idle condition. The PWM-Analog-Converter may 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.
• Please make sure that the complete system and all parts of the system are in a safe state.
• Please ensure that the PWM-Analog-Converter is connected correctly. Check the pin assignment.
• PWM-Analog-Converter with flat plugs (pursuant to ISO 7588-1: 1998-09)

1. Please ensure that the PWM-Analog-Converter is inserted into the correct slot. Follow the connection diagram and documents of the complete system.
2. Please ensure that all flat plugs of the PWM-Analog-Converter are free of dirt and moisture.
3. Please ensure that the slot does not exhibit any damages due to overheating, insulation damages and corrosion.
4. Please ensure that all sockets of the PWM-Analog-Converter are free of dirt and moisture.
5. If the PWM-Analog-Converter is used in a vibrating environment, the PWM-Analog-Converter must be secured by a latch to prevent it from shaking loose.
6. Plug the PWM-Analog-Converter vertically all the way into the slot.
   • The commissioning process can now be performed, see Chapter 8 Commissioning.

• Wiring
• Always use an external fuse in the power supply line to protect the device against overvoltage. For further information about the correct fuse rating, please refer to the corresponding data sheet.
• The wiring must be connected with the utmost diligence.
• All cables and the way they are laid must comply with applicable regulations.
• The connected cables must be suitable for temperatures min. 10 °C above the max. permitted environmental temperature.
• The cables must comply with the requirements and wire cross-sections specified in the technical data.
• When laying cables, the possibility of mechanical damages of the wire insulation on sharp edges or moving metal parts must be excluded.
• Cables must be laid so they are strain-relieved and friction-free.
• The cable routing must be selected in such a way that the cable harness only moves identically to the direction of movement of the controller/plug. (Attachment controller/cable/strain relief on the same underground). A strain relief is necessary (see Figure 1)

Commissioning

Commissioning work may only be performed by qualified staff (see Chapter 2.1 Staff Qualifications). The unit may only be commissioned if the condition of the complete system complies with the applicable guidelines and regulations.

INFORMATION MRS recommends a functional test on site.

WARNING!

• SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS Danger due to unprotected moving components.
• Before commissioning the system, please make sure that the complete system and all parts of the system are in a safe state.
• If necessary, secure all hazard areas with barrier tapes.

The operator must ensure that

• the correct software has been embedded and corresponds with the circuitry and parameter setting of the hardware (only for PWM-Analog-Converters supplied by MRS 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).

Software

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

INFORMATION

• PWM-Analog-Converters supplied without software can be programmed using MRS Realizer.
• More information available in the MRS Realizer manual.

Fault Removal and Maintenance

INFORMATION

• The PWM-Analog-Converter is maintenance-free and may not be opened.
• If the PWM-Analog-Converter exhibits any damages on the casing, locking catch, seals or flat plugs, it must be shut down.
• Fault removal and cleaning work may only be performed by qualified staff (see Chapter 2.1 Staff Qualifications). Fault removal and cleaning work may only be performed in idle condition. Remove the PWM-Analog-Converter for fault removal and cleaning.
• The PWM-Analog-Converter may never be connected or disconnected on-load or when live. After fault removal and cleaning work has been completed, please follow the instructions in Chapter 7 Electric Installation.

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 beginning fault removal and maintenance work, please make sure that the complete system and all parts of the system are in a safe state.
• Remove the PWM-Analog-Converter for fault removal and cleaning.

CAUTION!

DANGER OF BURNS!

• The casing of the PWM-Analog-Converter may exhibit an elevated temperature.
• Please do not touch the casing and let all system components cool down before working on the system.

CAUTION!

DAMAGE OR SYSTEM FAILURE DUE TO IMPROPER CLEANING!

• The PWM-Analog-Converter may be damaged due to improper cleaning processes and cause unintended reactions throughout the complete system.
• The PWM-Analog-Converter should not be cleaned with a high-pressure cleaner or a steam jet.
• Remove the PWM-Analog-Converter for fault removal and cleaning.

Cleaning

INFORMATION

Damages due to improper cleaning agents!

• The PWM-Analog-Converter may be damaged when cleaning it with high-pressure cleaners, steam jets, aggressive solvents or scouring agents.
• Do not clean the PWM-Analog-Converter with high-pressure cleaners or steam jets. Do not use any aggressive solvents or scouring agents.
• Only clean the PWM-Analog-Converter in a clean environment free of dust.

1. Please follow all safety instructions and deenergize the complete system.
2. Do not use any aggressive solvents or scouring agents.
3. Let the PWM-Analog-Converter dry.
   • Install the clean PWM-Analog-Converter pursuant to the instructions in Chapter 7 Electric Installation.

• Fault Removal

1. Please ensure that fault removal measures are performed in a safe environment (horizontal and solid ground, no weather impact)
2. Please follow all safety instructions and deenergize the complete system.
3. Check that the system is intact.
   • Remove damaged PWM-Analog-Converter and dispose of in accordance with national environmental regulations.
4. Remove the mate plug and/or remove the PWM-Analog-Converter from the slot.
   • Check all flat plugs, connectors and pins for mechanical damages due to overheating, insulation damage and corrosion.
5. Damaged PWM-Analog-Converters and PWM-Analog-Converters with corroded contacts must be removed and disposed of in accordance with national environmental regulations.
   • Dry PWM-Analog-Converter and contacts in case of moisture.
   • If needed, clean all contacts.

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

Disassembly and Disposal

Disassembly

• Disassembly and disposal may only be performed by qualified staff (see Chapter 2.1 Staff Qualifications). Disassembly of the unit may only be performed 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 the system, please make sure that the complete system and all parts of the system are in a safe state.
• CAUTION!

DANGER OF BURNS!

• The casing of the PWM-Analog-Converter may exhibit an elevated temperature.
• Please do not touch the casing and let all system components cool down before working on the system.
• PWM-Analog-Converter with flat plugs (pursuant to ISO 7588-1: 1998-09)

1. Gently unplug the PWM-Analog-Converter vertically from the slot.

Disposal

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

MORE INFO

• 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: PWM-Analog-Converter
• Types: 1.071 PWM-Analog-Converter
• Serial Number: see type plate

Document

• Name: PWM_OI1_1.3
• Version: 1.3
• Date: 01/2025
• 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. Our products are developed according to European norms and standards. Therefore, the use of these products is currently limited to the area of the European Economic Area (EEA). If products are to be used in another area, market access research must be carried out beforehand. You can do this yourself as the market introducer or you are welcome to contact us and we will discuss how to proceed together.

FAQs

Q: Can I use this product outside of the European Economic Area (EEA)?

A: The product is currently limited to use within the EEA. For use in other areas, market access research must be conducted beforehand.

 

Documents / Resources

MRS 1.071 PWM Analog Converter [pdf] Instruction Manual 1.071 PWM Analog Converter, 1.071, PWM Analog Converter, Analog Converter, Converter

References

• User Manual