MRS Toggle Relay M3 12 V User manual

Operating Instructions
For the following types:
Pulse Relays
Pulse Relay M3 12 V
Pulse Relay M3 24 V
Pulse Relay M1
compact 12 V
Pulse Relay M1
compact 24 V
Pulse Relay
adjustable 12 V
Pulse Relay
adjustable 24 V

Pulse Relays
-
Operating Instructions
Contact data
MRS Electronic GmbH & Co. KG
Klaus-Gutsc -Str. 7
78628 Rottweil, Germany
Telep one: [phone]
Internet: ttps://www.mrs-electronic.com
E-mail: [email protected]
Product
Product designation: Pulse Relays
Types: Pulse Relay M3 12 V
Pulse Relay M3 24 V
Pulse Relay M1 compact 12 V
Pulse Relay M1 compact 24 V
Pulse Relay adjustable 12 V
Pulse Relay adjustable 24 V
Serial number: see type plate
Document
Name: Pulse Relay_OI1_1.1
Version: 1.1
Date: 02/2022
T e original operating instructions were composed in Englis .
MRS Electronic GmbH & Co. KG compiled t is document wit t e utmost diligence and based on t e
current state of tec nology. 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. T erefore, t e use of t ese
products is currently limited to t e area of t e European Economic Area (EEA). If products are to be used
in anot er area, market access researc must be carried out before and. You can do t is yourself as t e
market introducer or you are welcome to contact us and we will discuss ow to proceed toget er.
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022

Table of Contents
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
Table of Contents
1 User information ............................................................................................................ 1
1.1 About t ese operating instructions ................................................................................. 1
1.2 Copyrig t .........................................................................................................................
1. Warranty conditions ........................................................................................................
2 Safety .............................................................................................................................. 4
2.1 Hazards............................................................................................................................ 4
2.2 Staff qualifications ........................................................................................................... 5
2. Obligations of t e manufacturers of complete systems ................................................... 6
3 Product description ....................................................................................................... 8
4 Transport / Storage .......................................................................................................
4.1 Transport ......................................................................................................................... 9
4.2 Storage ............................................................................................................................ 9
5 Intended use ................................................................................................................ 10
6 Assembly ...................................................................................................................... 11
6.1 Mounting location ......................................................................................................... 11
6.2 Mounting position ......................................................................................................... 11
6. Fastening ....................................................................................................................... 11
7 Electric installation ...................................................................................................... 12
7.1 Wiring ............................................................................................................................ 1
8 Commissioning ............................................................................................................ 14
Software ....................................................................................................................... 15
10 Fault remo al and maintenance ................................................................................. 16
10.1 Cleaning ........................................................................................................................ 17
10.2 Fault removal ................................................................................................................. 17
11 Disassembly and disposal ............................................................................................ 18
11.1 Disposal ......................................................................................................................... 18

1 User information
1
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
1 User information
1.1 About these operating instructions
T e manufacturer MRS Electronic GmbH & Co. KG ( ereinafter referred to as MRS) delivered
t is product to you in its entirety and functionally sound. T e operating instructions provide
information about ow to:
 Install t e product
 Service t e product (cleaning)
 Uninstall t e product
 Dispose of t e product
It is essential to read t ese operating instructions t oroug ly and completely before working
wit t e product. We strive to compile all t e information for safe and complete operation.
However, s ould you ave any questions not answered by t ese instructions, please contact
MRS.
Storage and transfer of the operating instructions
T ese instructions as well as all ot er product-related documentation relevant for different
applications must always be kept on and and be available in t e vicinity of t e product.
Target group of the operating instructions
T ese instructions address trained experts w o are familiar wit andling electronic assemblies.
Trained experts are t ose persons w o can assess t e tasks assigned to er/ im and recognize
possible dangers due to er/ is expert training, knowledge and experience as well as er/ is
knowledge of t e relevant standards and regulations.
Validity of the operating instructions
T e validity of t ese instructions goes into effect wit t e transfer of t e product from MRS to
t e operator. T e version number and approval date of t e instructions are included in t e
footer. C anges to t ese operating instructions are possible any time and wit out t e
specification of any reasons.
INFORMATION
T e current version of t e operating instructions replaces all previous versions.

1 User information
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
2
Warning information in the operating instructions
T e operating instructions contain warning information before a call to action w ic includes
t e risk of property damage or personal injury. T e measures for averting risks described in t e
instructions must be implemented. Warning information is structured as follows:
j DANGER!
SOURCE AND CONSEQUENCE
Plus explanation, w ere needed.
 Prevention.
 Warning
symbol:
(Warning triangle) indicates t e danger.
 Signal word: Specifies t e seriousness of t e danger
 Source: Designates t e type or source of t e danger.
 Consequence: Specifies t e consequences in case of noncompliance
 Prevention: Informs ow to avert t e danger.
j
DANGER!
Designates an immediate, serious t reat w ic will wit certainty lead to serious injury or
even deat if t e danger is not averted.
j
WARNING!
Designates a possible t reat w ic may lead to serious injury or even deat if t e danger is
not averted .
j
CAUTION!
Designates a potentially dangerous situation w ic may lead to mild or medium property
damage or p ysical injury if t e danger is not averted.
INFORMATION
Sections wit t is symbol provide important information about t e product or ow to
andle t e product .
Symbols used in the operating instructions
General warning sign .
Beware of electrical current .

1 User information
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
Beware of ot surface.
1.2 Copyright
T ese operating instructions contain information protected by copyrig t. T e contents or
excerpts of t e contents may not be copied or reproduced in any ot er way wit out prior
consent from t e manufacturer.
1.3 Warranty conditions
See t e General Terms and Conditions MRS Electronic GmbH & Co. KG at ttps://www.mrs-
electronic.de/agb/

2 Safety
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
4
2 Safety
T is c apter includes all t e information you s ould know in order to safely install and operate
t e product.
2.1 Hazards
T e pulse relay as been constructed wit t e newest tec nology and recognized safety-
relevant regulations. Danger for persons and/or property may arise in case of improper use.
Lack of compliance wit t e rules for work safety may result in damages. T is section describes
all t e possible azards w ic may be relevant during t e assembly, installation and
commissioning of t e pulse relay.
Faulty operations
Faulty software, circuits or parameter setting may cause unforeseen reactions or malfunctions
t roug t e complete system.
j
WARNING!
DANGER DUE TO MALFUNCTION OF THE COMPLETE SYSTEM
Unforeseen reactions or malfunctions of t e complete system may endanger t e safety of
people and mac ine.
 Please make sure t at t e pulse relay is equipped wit t e proper software and t at t e
circuits and parameter settings are compliant wit t e ardware .
Mo ing components
T e complete system may create unforeseen dangers w en commissioning and servicing t e
pulse relay.
j
WARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
 Before performing any work, s ut down t e complete system and secure it against
unintended restart.
 Before commissioning t e system, please make sure t at t e complete system and all
parts of t e system are in a safe state.

2 Safety
5
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
Ele ated temperature
j
CAUTION!
DANGER OF BURNS!
T e casing of t e pulse relay may ex ibit an elevated temperature.

Please do not touc t e casing and let all system components cool down before working
on t e system.
2.2 Staff qualifications
T ese operating instructions repeatedly refer to t e qualifications of t e employees w o can
be trusted to perform various tasks for installation and maintenance. T e t ree groups are:
 Specialists/Experts
 Skilled persons
 Aut orized persons
T is product is not suitable for use by persons (incl. C ildren) w o are mentally or p ysically
disabled or do not ave enoug experience or sufficient knowledge of t e product unless
supervised or aving attended a detailed training regarding t e use of t e pulse relay by a
person w o is responsible for t e safety of t is person .
Specialists/Experts
Specialists and experts are, for example, fitters or electrician w o are capable of assuming
different tasks, suc as transport, assembly and installation of t e product wit t e instructions
of an aut orized person. T e people in question must be experienced in andling t e product.
Skilled persons
Skilled persons are t ose persons w o ave sufficient knowledge of t e subject in question
due to t eir specialist training and are familiar wit t e relevant national occupational
protection provisions, accident prevention regulations, guidelines and generally recognized
rules of tec nology. Skilled persons must be capable of securely assessing t e results of t eir
work and familiarize t emselves wit t e contents of t ese operating instructions.
Authorized persons
Aut orized persons are t ose persons w o are permitted to perform t e work due to legal
regulations or w o ave been approved to perform certain tasks by MRS .

2 Safety
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
6
2.3 Obligations of the manufacturers of complete systems
 Tasks for system development, installation and commissioning of electric systems may only
be performed by trained and experienced staff, see C apter 2.2 Staff qualifications.
 T e manufacturer of t e complete system must ensure t at no defective or faulty pulse
relays are used. In case of failure or malfunctions, t e pulse relay must be replaced
immediately.
 T e manufacturer of t e complete system must ensure t at t e circuity and programming
of t e pulse relay do not lead to a safety-relevant malfunction of t e complete system in
case of a failure or malfunction.
 T e manufacturer of t e complete system is responsible for t e correct connection of all
t e perip erals (suc as cable profiles, plugs, crimps, correct selection/connection of
sensors/actuators).
 T e pulse relay may not be opened.
 No c anges and/or repairs may be performed on t e pulse relay.
 If t e pulse relay falls down, it may no longer be used and must be returned to MRS to be
c ecked.
 T e manufacturer of t e complete system must inform t e end customer about all potential
dangers.
The manufacturer must also take the following aspects into consideration when
using the pulse relay:
 Pulse relays wit wiring suggestions provided by MRS do not constitute a systematic
responsibility for complete systems.
 Safe operation cannot be guaranteed for pulse relays used as prototypes or samples in t e
complete system.
 Faulty circuitry and programming of t e pulse relay may lead to unforeseen signals to t e
outputs of t e pulse relay.
 Faulty programming or parameter setting of t e pulse relay may lead to dangers during
operation of t e complete system.
 It must be ensured w en t e pulse relay is released t at t e supply of t e electric system,
of t e final stages and of t e external sensor supply are s ut down jointly.
 Pulse relays wit out factory-made software programmed more t an 500 times may not be
used in complete systems any longer.

2 Safety
7
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
The risk of accidents is reduced if the manufacturer of the complete systems
obser es the following points:
 Ad erence to t e statutory regulations regarding accident prevention, occupational safety
and environmental protection.
 Provision of all documents required for installation and maintenance.
 Monitoring of t e cleanliness of t e pulse relay and of t e complete system.
 T e responsibilities for t e assembly of t e pulse relay must be clearly specified by t e
manufacturer of t e complete system. T e assembly and maintenance staff must be
regularly instructed.
 And work and maintenance performed on electric energy sources is always associated wit
possible dangers. Persons not familiar wit t ese kinds of devices and systems may cause
arm to t emselves and ot ers.
 T e installation and maintenance staff of a system wit electric devices must be instructed
by t e manufacturer regarding potential dangers, required safety measures and applicable
safety provisions before beginning work.

3 Product description
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
8
3 Product description
T e pulse relays by MRS Elecronic are used w en loads need to be turned and off for a timed
range.
T e MRS Realizer can be used for grap ic programming via Z-grap .

4 Transport / Storage
9
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
4 Transport / Storage
4.1 Transport
T e product must be packed in suitable transport packaging and secured against sliding
around. During transport, t e statutory provisions regarding securing loads must be observed.
If t e pulse relay falls down, it may no longer be used and must be returned to MRS to be
c ecked.
4.2 Storage
Store t e product in a dry place (no dew), dark (no direct sunlig t) in a clean room w ic can
be locked. Please observe t e permissible environmental conditions in t e data s eet.

5 Intended use
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
10
5 Intended use
T e pulse relay is an electromec anical switc used to switc circuits on and off in ve icles and
work mac ines and may only be used for t is purpose. T e pulse relay may only be operated
in industrial applications.
You are wit in regulations:
 If t e pulse relay is operated wit in t e operating ranges specified and approved in t e
corresponding data s eet.
 If you strictly ad ere to t e information and sequence of tasks described in t ese operating
instructions and do not engage in unaut orized actions w ic may risk your safety and t e
functionality of t e pulse relay.
 If you comply wit all specified safety instructions
j
WARNING!
DANGER DUE TO UNINTENDED USE!
T e pulse relay is only intended to be used in ve icles and work mac ines.
 An application in safety-relevant system parts for personal protection is not permitted.
 Please do not use t e pulse relay in explosive areas .
Misuse
 Use of t e product in conditions and requirements differing from t ose specified by t e
manufacturer in tec nical documentation, data s eets and operating instructions.
 Non-compliance wit t e safety information and information regarding assembly,
commissioning, maintenance and disposal specified in t e operating instructions.
 Conversions and c anges of t e pulse relay.
 Use of t e pulse relay or parts t ereof w ic are damaged or corroded. T e same goes for
seals and cables.
 Operation in a condition wit access to live parts.
 Operation wit out t e safety measures intended and provided by t e manufacturer.
MRS only guarantees/is liable for t e pulse relay corresponding to t e publis ed specifications.
If t e product is used in a way not described in t ese operation instructions or in t e data s eet
of t e pulse relay in question, t e protection of t e pulse relay will be impaired, and t e
warranty claim is void.

6 Assembly
11
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
6 Assembly
Assembly work may only be performed by qualified staff (see C apter 2.2). T e pulse relay may
only be operated after aving installed in a fixed location.
INFORMATION
If t e pulse relay falls down, it may no longer be used and must be returned to MRS to be
c ecked.
6.1 Mounting location
T e mounting location must be selected as suc t at t e pulse relay is subjected to as low a
mec anical and t ermal load as possible. T e pulse relay may not be exposed to c emicals.
INFORMATION
Please observe t e permissible environmental conditions in t e data s eet.
6.2 Mounting position
Mount t e pulse relay in suc a way t at t e connectors point downwards. T is ensures t at
possible condensation water can flow off. Individual seals of t e cables/wires ensure t at no
water can enter t e pulse relay.
6.3 Fastening
Pulse relay with flat plugs (pursuant to ISO 7588-1: 1998-09)
Pulse relays wit flat plugs are plugged into t e plugs provided by t e manufacturer of t e
complete system. Please observe t e instructions in C apter 7 Electric installation.

7 Electric installation
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
12
7 Electric installation
Electric installation work may only be performed by qualified staff (see C apter 2.2). T e electric
installation of t e unit may only be performed in idle condition. T e pulse relay may never be
connected or disconnected on-load or w en live.
j
WARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
 Before performing any work, s ut down t e complete system and secure it against
unintended restart.
 Please make sure t at t e complete system and all parts of t e system are in a safe state.
 Please ensure t at t e pulse relay is connected correctly. C eck t e pin assignment.
Pulse relay with flat plugs (pursuant to ISO 7588-1: 1998-09)
1. Please ensure t at t e pulse relay is inserted into t e correct slot. Follow t e connection
diagram and documents of t e complete system.
2. Please ensure t at all flat plugs of t e pulse relay are free of dirt and moisture.
3. Please ensure t at t e slot does not ex ibit any damages due to over eating, insulation
damages and corrosion.
4. Please ensure t at all sockets of t e pulse relay are free of dirt and moisture.
5. Plug t e pulse relay vertically all t e way into t e slot.
 T e commissioning process can now be performed, see C apter 8.

7 Electric installation
1
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
7.1 Wiring
INFORMATION
Always use an external fuse in t e power supply line to protect t e device against
overvoltage. For furt er information about t e correct fuse rating, please refer to t e
corresponding data s eet.
 T e wiring must be connected wit t e utmost diligence.
 All cables and t e way t ey are laid must comply wit applicable regulations.
 W en laying cables, t e possibility of mec anical damages of t e wire insulation on s arp
edges or moving metal parts must be excluded.
 Cables must be laid so t ey are strain-relieved and friction-free.
 T e cable arness must be strutted as suc t at in-p ase stimulation is performed wit t e
pulse relay.
 T e cables must comply wit t e requirements and wire cross-sections specified in t e
tec nical data.
 T e connected cables must be suitable for temperatures min. 10°C above t e max.
permitted environmental temperature.

8 Commissioning
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
14
8 Commissioning
Commissioning work may only be performed by qualified staff (see C apter 2.2). T e unit may
only be commissioned if t e condition of t e complete system complies wit t e applicable
guidelines and regulations.
INFORMATION
MRS recommends a functional test on site.
j WARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
 Before commissioning t e system, please make sure t at t e complete system and all
parts of t e system are in a safe state.
 If necessary, secure all azard areas wit barrier tapes.
T e operator must ensure t at
 t e correct software as been embedded and corresponds wit t e circuitry and parameter
setting of t e ardware (only for pulse relays supplied by MRS wit out software).
 no persons are present in t e vicinity of t e complete system.
 t e complete system is in a safe state.
 Commissioning is performed in a safe environment ( orizontal and solid ground, no
weat er impact)

9 Software
15
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
Software
T e installation and/or replacement of device firmware / software must be performed by MRS
Electronic GmbH & Co. KG or by an aut orized partner in order for t e warranty to remain
valid.
INFORMATION
Pulse relays supplied wit out software can be programmed using MRS Realizer.
 More information available in t e MRS Realizer manual.

10 Fault removal and maintenance
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
16
10 Fault remo al and maintenance
INFORMATION
T e pulse relay is maintenance-free and may not be opened.
 If t e pulse relay ex ibits any damages on t e casing, locking catc , seals or flat plugs, it
must be s ut down .
Fault removal and cleaning work may only be performed by qualified staff (see C apter 2.2).
Fault removal and cleaning work may only be performed in idle condition. Remove t e pulse
relay for fault removal and cleaning. T e pulse relay may never be connected or disconnected
on-load or w en live. After fault removal and cleaning work as been completed, please follow
t e instructions in C apter 7 Electric installation.
j
WARNING!
SUDDEN MOVEMENTS OF COMPLETE SYSTEM OR OF COMPONENTS
Danger due to unprotected moving components.
 Before performing any work, s ut down t e complete system and secure it against
unintended restart.
 Before beginning fault removal and maintenance work, please make sure t at t e
complete system and all parts of t e system are in a safe state.
 Remove t e pulse relay for fault removal and cleaning.
j
CAUTION!
DANGER OF BURNS!
T e casing of t e pulse relay may ex ibit an elevated temperature.

Please do not touc t e casing and let all system components cool down before working
on t e system.
j
CAUTION!
DAMAGE OR SYSTEM FAILURE DUE TO IMPROPER CLEANING!
T e pulse relay may be damaged due to improper cleaning processes and cause
unintended reactions t roug out t e complete system.
 T e pulse relay s ould not be cleaned wit a ig -pressure cleaner or a water jet.
 Remove t e pulse relay for fault removal and cleaning.

10 Fault removal and maintenance
17
Pulse Relay_OI1_1.1 | Version 1.1 | 02/2022
10.1 Cleaning
INFORMATION
Damages due to improper cleaning agents!
T e pulse relay may be damaged w en cleaning it wit ig -pressure cleaners, steam jets,
aggressive solvents or scouring agents.
 Do not clean t e pulse relay wit ig -pressure cleaners or steam jets. Do not use any
aggressive solvents or scouring agents.
Only clean t e pulse relay in a clean environment free of dust.
1. Please follow all safety instructions and deenergize t e complete system.
2. Do not use any aggressive solvents or scouring agents.
3. Let t e pulse relay dry.
 Install t e clean pulse relay pursuant to t e instructions in C apter 7.
10.2 Fault remo al
1. Please ensure t at fault removal measures are performed in a safe environment ( orizontal
and solid ground, no weat er impact)
2. Please follow all safety instructions and deenergize t e complete system.
3. C eck t at t e system is intact.
 Remove damaged pulse relays and dispose of in accordance wit national
environmental regulations.
4. Remove t e mate plug and/or remove t e pulse relay from t e slot.
5. C eck all flat plugs, connectors and pins for mec anical damages due to over eating,
insulation damage and corrosion.
 Damaged pulse relays and pulse relays wit corroded contacts must be removed and
disposed of in accordance wit national environmental regulations.
 Dry pulse relay and contacts in case of moisture.
 If needed, clean all contacts.
Faulty operations
In case of faulty operations, c eck t e software, circuitry and parameter settings .