Bartec APEXmpc Instruction Manual

Manual Ex p Control Unit
APEXmpc
SILASmpc

BARTEC GmbH
Max-Eyth-Straße 16
97980 Bad Mergentheim
GERMANY
Phone: [phone]
Fax: [phone]
Support: [email protected]
Internet: www.bartec.de
Operating instructions
Safety manual
Ex p control units
APEXmpc, type 07-37A2-2211/*M5*
ATEX / IECEx zone 1 / 21
SILASmpc, type A7-37S2-2111/*M5*
ATEX / IECEx zone 2 / 22
Document no.: 01-37A2-7D0003
Revised: 0
Order no.: 413876

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Ex p control unit
Motor purge controller
Table of Contents
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0Table of Contents
0Table of Contents ....................................................................................................... 3
1About these operating instructions ............................................................................. 7
1.1 Highlighted sections in this document ........................................................................... 8
Warning notices ........................................................................................................... 8
Symbols and means of illustration ............................................................................... 9
1.2 Technical changes.......................................................................................................... 9
1.3 Languages...................................................................................................................... 9
2Safety ...................................................................................................................... 10
2.1 Intended use ................................................................................................................ 10
Exclusive use ............................................................................................................. 10
Improper use.............................................................................................................. 10
2.2 Personnel qualifications............................................................................................... 10
2.3 Guarantee .................................................................................................................... 11
2.4 Safety information ....................................................................................................... 12
General ...................................................................................................................... 12
Operational safety information .................................................................................. 12
2.5 Avoidance of property damage ..................................................................................... 13
Short circuit due to improper connection ................................................................... 13
Triggering of the safety function................................................................................. 13
EMV-compliant connection........................................................................................ 13
Storage at too high a temperature.............................................................................. 13
Aggressive cleaning agents ........................................................................................ 14
Danger to health in the event of improper disposal .................................................... 14
2.6 Obligations of the operating company .......................................................................... 14
2.7 Instructions for use ...................................................................................................... 14
2.8 Marking and test certificate ......................................................................................... 15
Ex p control unit APEX, type 07-37A2-2211/*M5* ...................................................... 15
Ex p control unit SILAS, type A7-37S2-2111/*M5* ..................................................... 15
2.9 Standards complied with ............................................................................................. 16
Ex p control unit APEX, type 07-37A2-2211/*M5* ...................................................... 16
Ex p control unit SILAS, type A7-37S2-2111/*M5* ..................................................... 17
2.10 SIL –qualification/ safety in accordance with IEC 61508.............................................. 18
SIL qualification ......................................................................................................... 18
2.11 Safety function............................................................................................................. 18
Safety values ............................................................................................................. 19
Response time ........................................................................................................... 19
Residual risk .............................................................................................................. 19

Table of Contents
Ex p control unit
Motor Purge Controller
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3Product description.................................................................................................. 20
3.1 General ........................................................................................................................ 20
3.2 Ex p control unit APEXmpc / SILASmpc .............................................................................. 20
3.3 Pressure monitor, mpv ................................................................................................. 20
3.4 System structure.......................................................................................................... 21
Ex p control unit mpc, standard..................................................................................... 21
Ex p control unit mpc, high temperature........................................................................ 22
Pressure monitor mpv ................................................................................................ 23
MPV pressure monitor with an extended temperature range...................................... 23
3.5 Accessories.................................................................................................................. 24
Manual leakage air boost ........................................................................................... 24
p operator panel......................................................................................................... 24
Ex i separation box ..................................................................................................... 24
Programming approval ............................................................................................... 24
Programming cable .................................................................................................... 24
4Transport and storage .............................................................................................. 25
4.1 Scope of delivery.......................................................................................................... 25
4.2 Packaging..................................................................................................................... 25
4.3 Transport ..................................................................................................................... 25
4.4 Storage ........................................................................................................................ 26
4.5 Disposal ....................................................................................................................... 26
5Installation............................................................................................................... 27
5.1 General ........................................................................................................................ 27
5.2 Purge gas and pneumatic connections ......................................................................... 28
Purge gas supply........................................................................................................ 28
Purge gas supply to the motor.................................................................................... 28
Activation mpv ........................................................................................................... 28
Pressure measurement connections.......................................................................... 28
5.3 Flow chart .................................................................................................................... 29
6Electrical connections .............................................................................................. 30
6.1 General ........................................................................................................................ 31
Connection information.............................................................................................. 31
EMC-compliant connection........................................................................................ 32
Backup fuse ............................................................................................................... 33
Inductive loads........................................................................................................... 34
6.2 Electrical wiring APEXmpc / SILASmpc .............................................................................. 35
Terminals “Ex e”......................................................................................................... 36
Connection terminals “Ex i” ....................................................................................... 41

Ex p control unit
Motor purge controller
Table of Contents
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7Operation................................................................................................................. 47
7.1 Web interface............................................................................................................... 47
Setting the LAN connection........................................................................................ 47
7.2 Operating the WEB interface ........................................................................................ 49
7.3 Logging in to the WEB interface.................................................................................... 49
7.4 Navigating in the WEB interface ................................................................................... 49
7.5 Entering parameters .................................................................................................... 50
7.6 LED displays................................................................................................................. 50
7.7 Menu structure WEB interface ..................................................................................... 51
7.8 “Display” menu ............................................................................................................ 52
7.9 “Password” menu......................................................................................................... 52
7.10 “Network” menu........................................................................................................... 52
7.11 Query system status..................................................................................................... 53
7.12 Read out data containers ............................................................................................. 54
7.13 Purge parameters......................................................................................................... 55
Purge mode tab.......................................................................................................... 55
Pressure parameter ................................................................................................... 58
Characteristic curve................................................................................................... 59
Enclosure-related parameters tab ............................................................................. 59
7.14 Manual purging phase .................................................................................................. 60
Determining the purging pressure p3 ......................................................................... 60
7.15 Optional sensors .......................................................................................................... 61
Additional purging via a signal.................................................................................... 61
7.16 Messages..................................................................................................................... 62
7.17 Temperature sensors ................................................................................................... 63
Activation and adjustment of temperature sensors.................................................... 63
Setting the temperature switching values.................................................................. 63
8Commissioning......................................................................................................... 64
8.1 Initial commissioning ................................................................................................... 64
General ...................................................................................................................... 64
“Purge gas valve” setting ........................................................................................... 65
Configuration ............................................................................................................. 65
Ex p settings –Automatic purging.............................................................................. 69
8.2 Commissioning............................................................................................................. 72
Preparation phase...................................................................................................... 72
Purging phase ............................................................................................................ 72
Operating phase......................................................................................................... 73

Table of Contents
Ex p control unit
Motor Purge Controller
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9Operation................................................................................................................. 74
9.1 Safety during operation................................................................................................ 74
9.2 Operating phases of the Ex p control unit ..................................................................... 74
9.3 Querying system status................................................................................................ 74
10 Maintenance and repair............................................................................................ 76
10.1 Types of purge gas........................................................................................................ 76
10.2 Maintenance work........................................................................................................ 76
Maintenance intervals................................................................................................ 76
Visual inspection........................................................................................................ 77
Cleaning..................................................................................................................... 77
Regular maintenance ................................................................................................. 77
10.3 Repair work .................................................................................................................. 77
10.4 Faults and troubleshooting .......................................................................................... 78
Faults......................................................................................................................... 78
Fault messages.......................................................................................................... 80
11 Technical data.......................................................................................................... 83
11.1 Ex p control unit APEXmpc ........................................................................................... 83
11.2 Ex p control unit SILASmpc .......................................................................................... 84
11.3 Pressure monitor mpv .................................................................................................. 85
Pressure monitor mpv, standard ................................................................................ 85
Pressure monitor mpv, extended temperature range ................................................. 85
11.4 Recommended purge gas quality ................................................................................. 85
12 Order numbers ......................................................................................................... 86
12.1 Motor purge controller APEXmpc, Zone 1........................................................................ 86
12.2 Motor purge controller SILASmpc, Zone 2 ....................................................................... 86
12.3 Motor purge valve mpv ................................................................................................. 87
12.4 Operator panel ............................................................................................................. 87
12.5 Protective circuits ........................................................................................................ 87
13 Appendix.................................................................................................................. 88
13.1 Applied software packages .......................................................................................... 88
13.2 Dimensions .................................................................................................................. 88
Dimensions APEXmpc / SILASmpc ................................................................................ 88
Dimensions mpv......................................................................................................... 89
13.3 Diagram of purge air curve mpv 2 ................................................................................. 91
13.4 Diagram of purge air curve mpv 3 ................................................................................. 92
14 EU Declaration of Conformity .................................................................................... 93
14.1 EU Declaration of Conformity APEXmpc .......................................................................... 93
14.2 EU Declaration of Conformity SILASmpc ......................................................................... 94
15 Notes....................................................................................................................... 95

Ex p control unit
Motor purge controller
About these operating instructions
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1About these operating instructions
Read carefully before using the device.
Observe the corresponding operating instructions.
This manual contains the information required for the intended use of the
control unit. It is aimed at technically qualified personnel.
Knowledge of, as well as the technically correct implementation of the safety
instructions and warning notes contained within this manual are prerequisites
for a safe installation and start-up. Only qualified personnel have the
necessary specialist knowledge to correctly interpret the general safety notes
and warnings in these operating instructions, as well as to put them into
practice.
These operating instructions form an integral part of the scope of delivery,
even if, for logistical reasons, separate orders and deliveries were chosen as
an option.
Should you require further information, please request the required
information from your local or responsible BARTEC branch. Read the
operating instructions and especially the safety instructions carefully
before using the device.
Please retain these operating instructions for the entire service life of
the device.
Please make the brief instructions available to all persons entrusted
with handling the device.

About these operating instructions
Ex p control unit
Motor Purge Controller
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1.1 Highlighted sections in this document
Warning notices
In these operating instructions, warning notices are used to warn of potential
property damage and personal injury.
Always read and note these warning notices.
Warning notices are particularly highlighted in these operating instructions and
identified by symbols:
DANGER
DANGER indicates a hazardous situation which, if the safety measures are
not observed, can lead to death or serious injuries with permanent damage.
WARNING
WARNING indicates a hazardous situation which, if the safety measures are
not observed, can lead to serious injuries without permanent damage.
CAUTION
CAUTION indicates a hazardous situation which, if the safety measures are
not observed, can lead to minor injuries.
ATTENTION
ATTENTION indicates a hazardous situation which, if the safety measures
are not observed, can lead to property damage.
Explanation regarding the structure of warning notices
WARNING WORD
Stipulation of the source of danger, cause or type of danger
Consequences if the described safety measure is not observed.
Safety measure
Example of a warning notice
DANGER
Operation of the control unit in the event of damage!
Death or serious bodily injury.
Shut down the control unit and secure it to prevent it from being
switched on again.

Ex p control unit
Motor purge controller
About these operating instructions
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Symbols and means of illustration
Symbol
Explanation
Important notes and information for the effective, efficient and
environmentally compatible use of the product.
Ex application, these symbols indicate special instructions for Ex
applications
Safety function, these symbols indicate special instructions for
safe functions in accordance with IEC 61508.
Table 1: Symbols and means of illustration
1.2 Technical changes
The current versions of the data sheets, operating instructions, certificates and
EU declarations of conformity, as well as information on new accessories can be
downloaded from www.bartec.de under “Products & Solutions” in the “Control
and Connection Technology” product area or may be requested directly from
BARTEC GmbH.
1.3 Languages
The original user manual is written in German. All other available languages are
translations of the original user manual.
The user manual is available in German and English. If other languages are
required, these must be requested from BARTEC or specified when placing the
order.

Safety
Ex p control unit
Motor Purge Controller
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2Safety
2.1 Intended use
Exclusive use
The APEX control device in the mpc version is used exclusively as a control and
monitoring device for pressurised equipment and is intended for use in explosion
group II, category 2GD and temperature class T4 or for use in dust with surface
temperatures of T130 ° C.
Furthermore, the safety function of the APEX control device fulfils the
requirements for SIL 2 according to IEC 61508 and performance level “d”
according to EN ISO 13849-1. The permissible operating data of the device used
must be observed.
The SILAS control device in the mpc version is used exclusively as a control and
monitoring device for pressurised equipment and is intended for use in explosion
group II, category 3GD and temperature class T4 or for use in dust with surface
temperatures of T130 ° C.
The permissible operating data of the device used must be observed.
Improper use
Any other use is improper and can lead to damage and accidents. The
manufacturer is not liable for any use beyond the exclusive purpose.
2.2 Personnel qualifications
Target group
Competencies
Construction /
engineering
Technical training
Knowledge and experience to recognise and avoid
hazards that can arise from electricity
Understanding of the overall system
Configuration/ programming
Special instructions for the Ex area
Qualified electricians/
fitters
Technical training
Knowledge and experience to recognise and avoid
hazards that can arise from electricity
Understanding of the overall system
Special instructions for the Ex area
Operators
Instruction by the operator in regard to the operation
Special instructions for the Ex area
Storage and transport
companies
Loading and transport activities
Proper storage
Table 2: Responsibilities of individual target groups

Ex p control unit
Motor purge controller
Safety
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2.3 Guarantee
WARNING
UNAUTHORIZED MODIFICATIONS AND/ OR CHANGES TO THE CONTROLLER.
The explosion protection, as well as the stress and safety-oriented
construction and production are no longer guaranteed.
Contact the manufacturer before making changes and modifications
and obtain written approval.
Only use original and replacement wear parts.
Assumption of guarantee services
The manufacturer assumes the full guarantee only and
exclusively for spare parts ordered from them.
In principle, our “General Terms and Conditions of Sale and Delivery” shall apply.
These are available to the operating company upon conclusion of the contract at
the latest. Warranty and liability claims for personal injury and property damage
are excluded, if these can be linked to one or more of the following causes:
Improper use of the control unit.
Improper assembly, commissioning, operation and maintenance of the
control unit.
Failure to observe the instructions in the manual regarding transport,
storage, assembly, commissioning, operation and maintenance.
Unauthorised structural changes to the control unit.
Inadequate monitoring of parts that are subject to wear.
Repairs having been carried out incorrectly
Disasters caused by the effects of foreign bodies and force majeure.
We grant a guarantee period of one year from the date of delivery to the Bad
Mergentheim plant on the APEX or SILAS control unit and its accessories.
This warranty covers all parts of the delivery and is limited to the free
replacement or repair of the defective parts in our Bad Mergentheim plant. For
this purpose, the packaging supplied must be kept where possible. Where
required, the goods must be sent to us after agreeing the same in writing. There
shall be no right to a rectification of defects at the place of installation.

Safety
Ex p control unit
Motor Purge Controller
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2.4 Safety information
General
Do not dry wipe or clean devices in potentially explosive areas!
Do not open devices in potentially explosive areas.
General legal regulations or guidelines on occupational safety, accident
prevention regulations and environmental protection laws must be
observed, e.g. Industrial Safety Ordinance (BetrSichV) or nationally
applicable ordinances.
Wear suitable clothing and footwear because of the risk of dangerous
static electricity build-up.
Avoid the effects of heat outside the specified temperature range (see
chapter on general technical data).
Avoid the effects of moisture.
Operational safety information
Installation
Before the installation, it must be checked that all components and
documents are available.
Inspection
According to EN / IEC 60079-17 / ГОСТ IEC 60079-17-2013, the operator of
electrical systems in potentially explosive areas is obliged to have them
checked for proper condition by a qualified electrician.
Repairs
The relevant installation and operating regulations must be observed for
electrical systems (e.g. RL 99/92 / EG, RL 2014/34 / EU, BetrSichV or the
nationally applicable regulations EN / IEC 60079-14 / ГОСТ IEC 60079-14-
2013 and the DIN VDE 0100 series)!
Please observe the national waste disposal regulations for disposal.
Maintenance
If the device is operated properly, considering the installation instructions
and ambient conditions, no constant maintenance is required.
BARTEC recommends performing annual maintenance and testing.
See chapter on maintenance and care.

Ex p control unit
Motor purge controller
Safety
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Repairs
Repairs to explosion-protected equipment may only be carried out by
authorised persons using original spare parts and in line with the state of
the art. The applicable regulations must be observed.
Repairs must be carried out in accordance with EN / IEC 60079-19 /
ГОСТ 31610.19-2014
In the case of SIL-qualified devices, only corresponding electronic inserts
with SIL qualification may be used.
All application-specific settings must be re-entered. This is why you have
to start up again after repairs. If you saved the parameterisation data when
you started up the Ex p control unit for the first time, you can transfer
them back to the replacement control unit. You will find detailed
information on replacing spare parts in these operating instructions. You
must verify the parameters after starting up or after transferring the
parameterisation data. Only then is the device ready for operation again.
In Ex applications, only one device and one electronics module with the
appropriate Ex approval may be used. Order the spare parts from your
distributor. The serial number can be found on the type label of the device,
inside the housing.
2.5 Avoidance of property damage
Short circuit due to improper connection
An incorrect supply connection leads to the destruction of the electronics and
invalidates the guarantee.
Triggering of the safety function
Switching on again too quickly after switching off can result in internal voltage
peaks in the power supply unit and thus trigger the safety function. After
switching off the voltage, wait at least 30 seconds before switching it on again.
EMV-compliant connection
For the safe functioning of the Ex p control unit, it is important that the wiring is
EMC-compliant. This includes observing the chapter on electrical connections
with regard to EMC-compliant wiring and inductive loads.
Storage at too high a temperature
Please store the Ex p control unit at the intended storage temperature,
otherwise the electronics or seals may be damaged. Provide adequate air
conditioning at high storage temperatures.

Safety
Ex p control unit
Motor Purge Controller
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Aggressive cleaning agents
When choosing the right cleaning agent, it is essential to ensure that it is
suitable, otherwise seals and connections may be damaged. Flammable
products are generally not permitted.
Danger to health in the event of improper disposal
According to the European WEEE directive, electrical and electronic devices may
not be disposed of with household waste. Their components must be recycled or
disposed of separately because toxic and hazardous components can cause
lasting damage to health and the environment if not disposed of properly.
As consumers, according to the ElektroG, you are obliged to return electrical and
electronic devices at the end of their service life to the manufacturer, the point
of sale or to public collection points set up for this purpose. Details on this can
be found in the respective state law. The symbol on the product, the operating
instructions and/ or the packaging refers to these provisions. By separating the
material, as well as recycling and disposing of old devices, you are making an
important contribution towards protecting our environment.
2.6 Obligations of the operating company
The operator undertakes to only allow people to work with and on the APEX /
SILAS control unit who:
are familiar with the basic regulations on safety and accident prevention
and have been instructed in the use of the APEX and SILAS control unit;
have read and understood the documentation, the safety chapter and the
warning notices.
The operating company will check that the safety and accident prevention
regulations applicable in the respective application are complied with.
2.7 Instructions for use
Overvoltage category II of the non-intrinsically safe circuits according to
IEC 60664-1 must be observed
The warning "WARNING - DO NOT OPEN UNDER VOLTAGE" must be part of
the external marking of the entire electrical device, or the housing has a
locking system so that the fuses are not live when they are replaced.

Ex p control unit
Motor purge controller
Safety
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2.8 Marking and test certificate
The Ex p control unit has been approved for the following areas:
Ex p control unit APEX, type 07-37A2-2211/*M5*
ATEX (Europe)
Marking
II 2(1)G Ex eb mb ib [ib pxb] [ia Ga] IIC T4 Gb
II 2(1)D Ex tb [ib pxb] [ia Da] IIIC T130 °C Db
Test certificate
BVS 19 ATEX E 015 X
IECEx (International)
Marking
Ex eb mb ib [ib pxb] [ia Ga] IIC T4 Gb
Ex tb [ib pxb] [ia Da] IIIC T130 °C Db
Test certificate
IECEx BVS 19.0038 X
EAC (Eurasian Economic Union)
Marking
1Ex e mb ib [ib px] [ia Ga] IIC T5 Gb X
1Ex e mb ib [ib px] [ia Ga] IIC T4 Gb X
Ex tb [ib px] [ia Da] IIIC T95 °C Db X
Ex tb [ib px] [ia Da] IIIC T130 °C Db X
Test certificate
ЕАЭС RU С-DE.АЖ58.В.01809/21
Ex p control unit SILAS, type A7-37S2-2111/*M5*
ATEX (Europe)
Marking
II 3G Ex ec mc ic [ic pzc] IIC T4 Gb
II 3D Ex tc [ic pzc] IIIC T130 °C / T95 °C Db
Test certificate
BVS 19 ATEX E 016 X
IECEx (International)
Marking
Ex ec mc ic [ic pzc] IIC T4 Gb
Ex tc [ic pzc] IIIC T130 °C / T95 °C Db
Test certificate
IECEx BVS 19.0038 X
EAC (Eurasian Economic Union)
Marking
2Ex ic e mc [ic pz] [ia Ga] IIC T5 Gc X
2Ex ic e mc [ic pz] [ia Ga] IIC T4 Gb X
Ex tc [ic pz] IIIC T95 °C Dc X
Ex tc [ib pz] IIIC T130 °C Dc X
Test certificate
ЕАЭС RU С-DE.АЖ58.В.01809/21

Safety
Ex p control unit
Motor Purge Controller
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2.9 Standards complied with
Ex p control unit APEX, type 07-37A2-2211/*M5*
Standard
Description
EN IEC 60079-0:2018/AC:2020
IEC 60079-0:2011 Edition: 6.0
ГОСТ 31610.0-2014
Hazardous areas –Part 0: General provisions
EN 60079-2:2014
IEC 60079-2:2007 Edition: 5.0
ГОСТ IEC 60079-2-2011
Explosive atmosphere –Part 2: Equipment
protection through pressurised enclosure “p”
EN 60079-7:2015/A1:2018
IEC 60079-7:2006 Edition: 4.0
ГОСТ РМЭК 60079-7-2012
Explosive atmosphere –Part 7: Equipment
protection through increased safety “e”
EN 60079-11:2012
IEC 60079-11:2011 Edition: 6.0
ГОСТ 31610.11-2014
Explosive atmosphere –Part 11: Equipment
protection through intrinsic safety “i”
EN 60079-18:2015/A1:2017
IEC 60079-18:2014 Edition: 4.0
ГОСТ РМЭК 60079-18-2012
Hazardous areas –Part 18: Equipment protection
through encapsulation “m”
EN 60079-31:2014
IEC 60079-31:2013 Edition: 2.0
ГОСТ IEC 60079-31-2013
Hazardous areas –Part 31: Device dust explosion
protection through housing “t”
EN 61010-1:2010
IEC 61010-1:2010 Edition 3.0
Safety regulations for electrical measuring,
control, regulating and laboratory devices –Part
1: General requirements
EN 61000-6-4:2007 + A1:2011
IEC 61000-6-4:2018 Edition 3.0
Electromagnetic compatibility (EMC) –Part 6-4:
Generic standards –emitted interference for
industrial areas
EN 61000-3-2:2014
IEC 61000-3-2:2018 Edition 5.0
Electromagnetic compatibility (EMC) –Part 3-2:
Limit values –limit values for harmonic currents
(device input current <= 16 A per conductor)
EN 61000-3-3:2013
EN 61000-3-3:2013 +
AMD1:2017 Edition 3.1
Electromagnetic compatibility (EMC) -
Part 3-3: Limits - Limitation of voltage changes,
voltage fluctuations and flicker in public low-
voltage supply networks for devices with a rated
current <= 16 A per conductor that are not subject
to any special connection conditions
EN 61326-1:2013
IEC 61326-1:2012
Electrical measuring, control, regulating and
laboratory devices - EMC requirements - Part 1:
General requirements
EN ISO 13849-1:2015
Safety of machines - Safety-related parts of
control systems - Part 1: General design principles
EN ISO 13849-2:2012
Safety of machines - Safety-related parts of
control systems - Part 2: Validation
DIN EN 62061:2016
IEC 62061:2015
Machine safety - functional safety of safety-
related electrical, electronic and programmable
electronic control systems

Ex p control unit
Motor purge controller
Safety
Rev. 0 01-37A2-7D0003_Operating instructions_MPC_20210923_0_en.docx Page 17 of 96
Ex p control unit SILAS, type A7-37S2-2111/*M5*
Standard
Description
EN IEC 60079-0:2018/AC:2020
IEC 60079-0:2011 Edition: 6.0
ГОСТ 31610.0-2014
Hazardous areas - Part 0: General provisions
EN 60079-2:2014
IEC 60079-2:2007 Edition: 5.0
ГОСТ IEC 60079-2-2011
Explosive atmosphere - Part 2: Equipment
protection through pressurised enclosure "p"
EN 60079-7:2015/A1:2018
IEC 60079-7:2006 Edition: 4.0
ГОСТ РМЭК 60079-7-2012
Explosive atmosphere - Part 7: Equipment
protection through increased safety "e"
EN 60079-11:2012
IEC 60079-11:2011 Edition: 6.0
ГОСТ 31610.11-2014
Explosive atmosphere - Part 11: Equipment
protection through intrinsic safety "i"
EN 60079-18:2015/A1:2017
IEC 60079-18:2014 Edition: 4.0
ГОСТ РМЭК 60079-18-2012
Hazardous areas - Part 18: Equipment protection
through encapsulation "m"
EN 60079-31:2014
IEC 60079-31:2013 Edition: 2.0
ГОСТ IEC 60079-31-2013
Hazardous areas - Part 31:
Device dust explosion protection through
housing "t"
EN 61010-1:2010
IEC 61010-1:2010 Edition 3.0
Safety regulations for electrical measuring,
control, regulating and laboratory devices - Part 1:
General requirements
EN 61000-6-4:2007 + A1:2011
IEC 61000-6-4:2018 Edition 3.0
Electromagnetic compatibility (EMC) -
Part 6-4: Generic standards - emitted interference
for industrial areas
EN 61000-3-2:2014
IEC 61000-3-2:2018 Edition 5.0
Electromagnetic compatibility (EMC) -
Part 3-2: Limit values - limit values for harmonic
currents (device input current <= 16 A per
conductor)
EN 61000-3-3:2013
EN 61000-3-3:2013 +
AMD1:2017 Edition 3.1
Electromagnetic compatibility (EMC) -
Part 3-3: Limits - Limitation of voltage changes,
voltage fluctuations and flicker in public low-
voltage supply networks for devices with a rated
current <= 16 A per conductor that are not subject
to any special connection conditions
EN 61326-1:2013
IEC 61326-1:2012
Electrical measuring, control, regulating and
laboratory devices - EMC requirements - Part 1:
General requirements

Safety
Ex p control unit
Motor Purge Controller
Page 18 of 96 01-37A2-7D0003_Operating instructions_MPC_20210923_0_en.docx Rev. 0
2.10 SIL –qualification/ safety in accordance with IEC 61508
The SIL qualification is only valid for the model
type 07-37A2 - *** 1 / **** (APEX).
Important notes and information on the safe handling of the
product.
SIL qualification
During the development of the Ex p control unit APEX, particular attention is paid
to the avoidance of systematic errors as well as the detection and control of
random errors. Here are the most important properties and requirements from
the point of view of functional safety according to IEC 61508:
Internal monitoring of safety-relevant circuit parts
In the event of an error, the safety-relevant outputs go into a defined safe
state
Determination of the failure probability of the defined safety function
Safe parameterisation in an unsafe operating environment
Repeat checks
The SIL qualification of components is documented within this manual. This
chapter summarises all safety-relevant characteristics that users and planners
need for planning and operating the safety-instrumented system. Further SIL
relevant information is included in this manual.
2.11 Safety function
The safety function of the Ex p control unit APEX is characterised by the flushing
with a defined amount of flushing gas, the safe monitoring of the internal
overpressure of the protected equipment and the release of the operation. The
safe state means that in the event of a pressure drop or malfunction, the APEX
control unit changes to the safe state = deactivation of the protected equipment.
The “safe state” is triggered by:
A fall below the minimum pressures within the Ex p equipment
Illogical pressure values within the Ex p equipment
Failure of the supply voltage
If the Ex p APEX control unit does not deactivate the protected equipment or
does not change to the safe state on request or in the event of a fault, a
dangerous failure has occurred.

Ex p control unit
Motor purge controller
Safety
Rev. 0 01-37A2-7D0003_Operating instructions_MPC_20210923_0_en.docx Page 19 of 96
Safety values
THE FOLLOWING SAFETY VALUES ARE WITHOUT OPTIONAL
SENSORS.
The optional sensors must be considered to determine the total
failure rate!
The safety values can be found in the documentation for
the optional sensors used.
Safety values in accordance with IEC/EN 61508 / DIN EN ISO 13849-:
SIL = 2
Performance level: = d
PFHsys = (PFH_S+_PFH_L+PFH_FE+PFH_C) = 1,70E-08
HFT = 1
SFFsys = 92,85 %
MTTFd = 76 Yr
DC = 88,78 %
Device type B (complex equipment)
Repeat test interval = 1 year
Category 3
Response time
The reaction time of the Ex p control unit APEX to safety-relevant functions,
without specific user delay times, is less than 2 seconds.
With the Ex p control unit APEX, it is possible to set a delay time in the event of
pressure fluctuations below the minimum pressure.
This results in a delay time of
Treaction = Tcontrol + Tdelay
Treaction = Time until the Ex p APEX control unit reacts to a safety-relevant
function
Tcontrol = Internal time that the Ex p control unit needs to recognise the
safety-relevant triggering. <2 seconds
Tdelay = Adjustable delay time for safety-relevant releases which is
added to the response time Tcontrol.
Residual risk
Residual risks can arise from:
Errors in the configuration
Errors in the operation
Errors in the wiring