F2-SP-IC* Segment Protector

PROCESS AUTOMATION
MANUAL
F2-SP-IC*
Segment Protector
R
F2-SP-IC*
With regard to the supply of products, the current issue of the following document is applicable: The
General Terms of Delivery for Products and Services of the Electrical Industry, published by the
Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie
(ZVEI) e.V.) in its most recent version as well as the supplementary clause: "Expanded reservation
of proprietorship"
F2-SP-IC*
F2-SP-IC*
Contents
1 Safety ................................................................................... 5
1.1 Validity ..........................................................................................................5
1.2 Symbols used ...............................................................................................5
1.3 System Operator and Personnel ...................................................................5
1.4 Pertinent Laws, Standards, Directives, and further Documentation ...............6
1.5 Marking.........................................................................................................6
1.6 Intended Use ................................................................................................6
1.7 Mounting and Installation ..............................................................................7
1.7.1 Intrinsically Safe Circuits...........................................................................8
1.7.2 Zone 22 ....................................................................................................8
1.7.3 Zone 21 ....................................................................................................8
1.8 Repair and Maintenance...............................................................................8
1.9 Delivery, Transport and Storage ....................................................................9
1.10 Disposal........................................................................................................9
2 Product Specifications..................................................... 10
2.1 Overview and Application ...........................................................................10
2.2 Type Codes.................................................................................................13
2.2.1 F2-SP-IC* Segment Protector Type Code ..............................................13
2.3 Component Dimensions and Overview.......................................................14
2.4 Technical Data ............................................................................................16
3 Hazardous Area Installation and Use ............................. 19
3.1
3.2
Installation in Zone 2, no Live Maintenance at Trunk and Spurs (Ex nAc)....19
Installation in Zone 2 with Live Maintenance at the Spurs 
(Ex ic, FISCO ic) .........................................................................................19
3.2.1 Spur Voltage Limited by the External Fieldbus Power Supply 
Uo  24V, Entity Examination..................................................................19
3.2.2 Spur Voltage Limited by the Segment Protector .....................................20
3.2.3 Spur Voltage Limited by the External Fieldbus Power Supply, 
FISCO Examination................................................................................21
4 Installation and Commissioning ..................................... 22
2014-01
4.1 Mounting and Dismounting .........................................................................22
4.2 Segment Protector Connection Layout of the Trunk ....................................25
4.3 Segment Protector Connection Layout of the Spurs ...................................26
4.4 Grounding / Shielding the Segment Protector and the Fieldbus Cables......28
4.5 Option: Tag Plate.........................................................................................32
4.6 Option: Surge Protection with FS-LBF-I1.32 ...............................................32
4.6.1 Servicing the FS-LBF-I1.32 in the Segment Protector ............................32
3
F2-SP-IC*
Contents
5 Operation .......................................................................... 34
5.1 Indicators ................................................................................................... 34
5.2 Fault Detection, Physical Layer Diagnostics ............................................... 35
5.2.1 Device Signal Level ............................................................................... 35
5.2.2 Device Signal Jitter ................................................................................ 35
5.3 Fault Isolation ............................................................................................. 36
5.3.1 Short Circuit Current Limitation (Static Fault Protection)......................... 36
5.3.2 Spur Contact Bounce Protection (Dynamic Fault Protection)................. 36
5.3.3 Progressive Spur Short Circuit Current Limitation 
(Creeping Fault Protection) .................................................................... 36
5.3.4 Device Jabber Protection....................................................................... 37
5.4 Accessory: Enclosure Leakage Sensor ELS-1 ........................................... 37
5.5 Using Device Couplers in PROFIBUS PA Installations ............................... 38
5.6 Using Device Couplers in FOUNDATION Fieldbus H1 Installations ........... 39
6 Appendix ........................................................................... 40
6.1
6.2
2014-01
6.3
Spare Parts, Options, and Accessories ...................................................... 40
Electromagnetic Compatibility Verification in Accordance 
with EC Council Legislation Directive 2004/108/EC ................................... 40
Referenced Documents.............................................................................. 41
4
F2-SP-IC*
F2-SP-IC*
Safety
1
Safety
1.1
Validity
The chapter “Safety” is valid as instruction manual.
Specific processes and instructions in this document require special precautions
to guarantee the safety of the operating personnel.
1.2
Symbols used
This document contains information that you must read for your own personal
safety and to avoid property damage. Depending on the hazard category, the
warning signs are displayed in descending order as follows:
Safety-relevant symbols
Danger!
This symbol indicates an imminent danger.
Non-observance will result in personal injury or death.
Warning!
This symbol indicates a possible fault or danger.
Non-observance may cause personal injury or serious property damage.
Caution!
This symbol indicates a possible fault.
Non-observance could interrupt devices and any connected facilities or systems,
or result in their complete failure.
Informative symbols
Note!
This symbol brings important information to your attention.
Action
This symbol indicates a paragraph with instructions.
1.3
System Operator and Personnel
Responsibility for planning, assembly, commissioning, operation, maintenance,
and dismounting lies with the system operator.
2014-01
Mounting, installation, commissioning, operation, maintenance and disassembly
of any devices may only be carried out by trained, qualified personnel. The
instruction manual must be read and understood.
5
F2-SP-IC*
Safety
1.4
Pertinent Laws, Standards, Directives, and further Documentation
Laws, standards, or directives applicable to the intended use must be observed.
In relation to hazardous areas, Directive 1999/92/EC must be observed.
The corresponding data sheets, declarations of conformity, EC-type-examination
certificates, certificates and Control Drawings if applicable (see data sheet) are an
integral part of this document. You can find this information under www.pepperlfuchs.com.
Due to constant revisions, documentation is subject to permanent change. Please
refer only to the most up-to-date version, which can be found under www.pepperlfuchs.com.
1.5
Marking
The Segment Protectors are marked with:
Pepperl+Fuchs GmbH
Lilienthalstrasse 200, 68307 Mannheim, Germany
F2-SP-IC*
TÜV 13 ATEX 107689 X
II 3 G Ex nAc [ic] IIC T4 ,
II 2(3) D Ex tb [ic] IIIC T130°C (for cable gland version only)
IECEx TUN 13.0004X
Ex nAc [ic] IIC T4 ,
Ex tb [ic] IIIC T130°C (for cable gland version only)
The stars replace a combination of characters, depending on the product.
Electrical data see EC-type-examination certificate or datasheet.
1.6
Intended Use
F2-SP-IC* Segment Protectors are fieldbus device couplers that connect field
devices, through spurs, to the trunk of a segment in accordance with IEC61158-2.
Each spur individually limits or isolates the current during a spur failure, ensuring
that the remaining segment is not affected.
The device is designed for use in intrinsically safe fieldbus systems according to
FISCO or Entity.
If devices have already been operated in general electrical systems, they may
subsequently no longer be installed in electrical systems used in combination with
hazardous areas.
6
2014-01
F2-SP-IC* Segment Protectors are intended for panel mounting. For mounting,
use two screws with a diameter of 6 mm. Choose the mounting material to fit the
nature of the sub-surface (the wall). When choosing the mounting material,
ensure that it can be fastened securely.
F2-SP-IC*
Safety
Mounting, installation, commissioning, operation, maintenance and disassembly
of any devices may only be carried out by trained, qualified personnel. The
instruction manual must be read and understood.
The device must only be operated in the ambient temperature range and at the
relative humidity (non-condensing) specified.
The devices are only approved for appropriate and intended use. Ignoring these
instructions will void any warranty and absolve the manufacturer from any liability.
The device must only be operated in the ambient temperature range and at the
relative humidity (non-condensing) specified.
1.7
Mounting and Installation
The installation instructions in accordance with IEC/EN 60079-14 must be
observed.
The installation instructions in accordance with IEC/EN 60079-25 must be
observed.
Prior to mounting, installation, and commissioning of the device you should make
yourself familiar with the device and carefully read the instruction manual.
Do not install damaged or polluted devices.
If devices have already been operated in general electrical systems, they may
subsequently no longer be installed in electrical systems used in combination with
hazardous areas.
The use of the jumper "P" to change I0 and the jumper "T" to activate the
terminator as well as the connection and disconnection of energized non
intrinsically safe circuits is only permitted if no explosive atmosphere exists.
Cables must be securely fixed.
To ensure the IP degree of protection:
■
■
■
■
■
all seals must be undamaged and correctly fitted
all screws of the housing and its cover must be tightened with the
appropriate torque
only cable of the appropriate size must be used in the cable glands
all cable glands must be tightened with the appropriate torque
all empty cable glands must be sealed with sealing plugs
Do not connect the signal wires to ground or to the cable shield.
Trunk and spur connectors are only allowed to be manipulated at ambient
temperatures between -5 °C and +70 °C.
2014-01
The devices may be installed in a corrosive location acc. to ISA-S71.04-1985,
severity level G3.
7
F2-SP-IC*
Safety
1.7.1
Intrinsically Safe Circuits
All separation distances between two adjacent intrinsically safe circuits need to be
observed in accordance with IEC/EN 60079-14.
Intrinsically safe circuits of associated apparatus (installed in safe areas) can be
led into hazardous areas, whereby special attention must be paid to maintain
separation distances to all non-intrinsically safe circuits according to the
requirements in IEC/EN 60079-14.
If "Ex ic" protected circuits are operated with non-intrinsically safe circuits, they
must no longer be used as "Ex ic" protected circuits.
The respective peak values of the field device and the associated apparatus with
regard to explosion protection should be considered when connecting intrinsically
safe field devices with intrinsically safe circuits of associated apparatus
(verification of intrinsic safety). Make sure to observe IEC/EN 60079-14 and
IEC/EN 60079-25.
1.7.2
Zone 22
Devices with external pluggable connectors for non-intrinsically safe circuits must
not be installed in Zone 22.
Connection or disconnection of energized non-intrinsically safe circuits is only
permitted in the absence of a hazardous atmosphere.
The housing must not be opened when the device is connected to the supply
voltage if there is a risk of dust explosion.
All dust deposits must be removed before the housing is opened.
1.7.3
Zone 21
Devices with external pluggable connectors must not be installed in Zone 21.
Connection or disconnection of any energized circuits is only permitted in the
absence of a hazardous atmosphere.
Ex ic protected circuits meet equipment protection level Dc only.
The housing must not be opened when the device is connected to the supply
voltage.
All dust deposits must be removed before the housing is opened.
1.8
Repair and Maintenance
2014-01
The devices must not be repaired, changed or manipulated. If there is a defect,
the product must always be replaced with an original device.
8
F2-SP-IC*
Safety
1.9
Delivery, Transport and Storage
Check the packaging and contents for damage.
Check if you have received every item and if the items received are the ones you
ordered.
Keep the original packaging. Always store and transport the device in the original
packaging.
Always store the device in a clean and dry environment. The permitted storage
temperature (see data sheet) must be considered.
1.10
Disposal
2014-01
Disposing of devices, packaging material, and possibly contained batteries must
be in compliance with the applicable laws and guidelines of the respective
country.
9
F2-SP-IC*
F2-SP-IC*
Product Specifications
2
Product Specifications
2.1
Overview and Application
The F2-SP-IC* Segment Protectors are part of a new family of bus powered, fault
tolerant fieldbus device couplers used for the connection of field instruments to
segments.
The Segment Protectors are designed for fieldbus systems in accordance with
IEC 61158-2 (FOUNDATION Fieldbus H1 or PROFIBUS PA) and in accordance
with the FOUNDATION fieldbus device coupler test specification FF-846.
Communication and power distribution share the same two-wire cable using
Manchester Bus Powered (MBP) coding.
Mounting of F2-SP-IC* Segment Protectors
The Segment Protector is placed in an aluminum housing for wall mounting.
The F2-SP-IC* Segment Protector family offers different trunk cable entry options
and spur cable entry options for the most required applications and types of
protection.For the different cable entry options,
see image on page 13.
For spur wiring, different types of terminals are available depending on the
maintenance requirements of the plant. For the terminal options,
see image
on page 13.
Connection layout
Spurs: Each field device is connected to 1 output or spur, and 1 or more Segment
Protector(s) are connected to the segment or trunk. F2-SP-IC* offers the choice
from 4-10 spur connections.
Trunk: Featuring 2 cable glands and terminals for Trunk IN and Trunk OUT, the
Segment Protector can be installed at any point in the trunk line.
Type of protection
The Segment Protector is certified for installation in Zone 2. Using Pepperl+Fuchs
Segment Protectors in combination with Pepperl+Fuchs Fieldbus Power Supplies
allows you to perform live maintenance at the field device level in Zone 2 because
the outputs are either classified Entity Ex ic or FISCO ic.
Monitoring and diagnostic options
A fault summary status alarm is shown on the Segment Protector through an LED
indicator and can be issued in detail, i.e. via specific field instrument diagnosis
using an Advanced Diagnostic Module, positioned in the specific working
environment of a control system.
10
2014-01
The F2-SP-IC* Segment Protector series are the first to offer device level
integrated Physical Layer Diagnostics as a standard. Most important physical
layer parameters, such as communication signal levels and signal jitter for each
participating field instrument are monitored and compared to limit values that are
mainly derived from the IEC 61158-2 physical layer specification or from empirical
data.
F2-SP-IC*
Product Specifications
Failure condition handling (short circuit limitation and beyond)
The design of the F2-SP-IC* Segment Protector series focuses on fault tolerance
towards failure conditions on the spur/field device level threatening the entire
segment to fail.
Each spur is equipped with short circuit current limitation with unique features:
■
■
■
Spur Contact Bounce Protection: Protects the segment from continuous or
intermittent current changes due to poorly attached, fractured, or loose
fieldbus wires at a spur. When under vibration, wires can keep connecting
and disconnecting to the attached field device load. The Pepperl+Fuchs
Spur Contact Bounce Protection protects the fieldbus communication from
permanent disturbances, and safeguards the segment against failure.
Progressive Spur Short Circuit Protection: Avoids segment failure in
situations where the spur current progressively rises, e.g. if water ingresses
in the terminal arrangement, leading to increasing conductivity between the
fieldbus wires and causing the current limiting electronics to dampen the
communication signals due to increasing impedance. The Pepperl+Fuchs
Segment Protector safely isolates any affected spur in order to prevent a
total segment failure.
Device Jabber Protection: Specific software or hardware failures can cause
the field instrument to communicate continuously (Jabber). The
Pepperl+Fuchs Segment Protector has an integrated device jabber
inhibitor that first detects faults caused by device jabber, and then
immediately isolates the faulty device from the segment.
If a spur has a short circuit or failure, the fieldbus trunk and all other field devices
remain in operation. When the fault is repaired, the Segment Protector
automatically resumes normal operation of the spur.
These features, combined with overvoltage protection at 39 V, make segments
reliable.
Surge protection for F2-SP-IC* Segment Protectors
As an option Segment Protectors are delivered with a trunk surge protection
device to protect safely against damages caused by voltage surges and lightning
strikes. The FS-LBF-I1.32 is installed in one of the trunk cable glands. Therefore,
this option is only available when a single Segment Protector is connected to the
segment.
Fieldbus termination for F2-SP-IC* Segment Protectors
By default, a jumper for fieldbus termination is included. A field terminator is
mounted at the very end of the segment or trunk. The last Segment Protector on
the segment is terminated by a mechanical jumper. This design increases fieldbus
availability in two ways:
2014-01
1. the connection is secured by screws
2. overtermination resulting in reduced signal levels is avoided: the termination is clearly visible for installation personnel and can only be connected at
the end of the trunk line
11
F2-SP-IC*
Product Specifications
Shielding/Grounding
The Segment Protector offers an optional grounding terminal jumper to connect
all shields to the external grounding clamp of the Segment Protector housing. If
shielded cables are used, the terminal jumper should be stored in the defined
parking position.
Gas Group Selection
The maximum short circuit current must be determined depending on the gas
group IIC or IIB. The F2-SP-IC* includes a short circuit current jumper to adjust
the Segment Protector to the individual requirements.
Indicators for Monitoring and Diagnosis
The Segment Protectors contain externally visible LED indicators for easy
communication monitoring and diagnosis. The LEDs indicate:
■
■
■
■
2014-01
■
bus communication activity
physical layer diagnostic status
power on the trunk
a short circuit condition or fault at any connected spur (each spur is
equipped with an individual LED)
Trunk voltage > 10 V and Terminator activated
12
F2-SP-IC*
Product Specifications
2.2
Type Codes
2.2.1
F2-SP-IC* Segment Protector Type Code
1
If no surge protector is selected, one trunk entry is closed with a stainless steel stopping
plug.
2
If no surge protector is selected, one trunk entry is closed with a plastic stopping plug.
3
Only options with cable glands are permitted for dust hazardous areas.
2014-01
Contact your Pepperl+Fuchs representative to check the availability of individual
variants.
13
F2-SP-IC*
Product Specifications
2.3
Component Dimensions and Overview
The following section shows the dimensions, the inside connections, and the
options of the Segment Protector.
Component dimensions
258
10
93
228
For the housing height, please see see table "Variants of Cable Connections, Housing
Types, and Temperature Ranges" on page 18.
2014-01
X
114
X
(57)
240
14
F2-SP-IC*
Product Specifications
Component overview
2c
4
2b
5
6
7
3
2a
8
+–s +–s
+–s +–s +–s +–s +–s +–s +–s +–s
+–s +–s
9
10
2
1
Figure 2.1
F2-SP-IC*: Segment Protector with housing cover removed.
1
Surge Protector: The option connects to the cable entry of the Trunk OUT line (preconfigured as selected).
2
Spur terminals: 4-10 spurs can be connected to the Segment Protector. The Segment
Protector features either of the 3 types of terminals shown (preconfigured as selected):
2a Screw terminal
2b Removable screw terminal
2c Removable spring terminal
3
Status LEDs for spurs, trunk power, communication, and terminator
See chapter 5.1
4
Trunk IN terminal: Connects the incoming trunk line to the Segment Protector
5
Jumper for protection type
6
Jumper for termination
7
Trunk OUT terminal: Connects the outgoing trunk line to the Segment Protector
8
Shield/screen grounding jumper (optional)
9
Notch for fixing the Segment Protector housing with screw M6
see image on page 33
see Figure 4.2 on page 28
see Figure 4.1 on page 26
2014-01
see Figure 4.4 on page 30
10 Grounding point for connecting the Segment Protector to earth with M4 screw.
See chapter 4.4
15
F2-SP-IC*
Product Specifications
2.4
Technical Data
Technical Data
Fieldbus interface
Main cable (Trunk)
Rated voltage
9 ... 31 V DC
10.5 V DC minimum input voltage acc. to FF-846
Rated current
max. 4.5 A
Outputs
Number of outputs
see table Technical data depending on model
Number of devices per
output
1
Rated voltage
max. 31 V
Rated current
max. 32 mA jumper 1, position 2 
max. 43 mA jumper 1, position 1
Short-circuit current
46 mA jumper 1, position 2 
65 mA jumper 1, position 1
Self current consumption
see table Technical data depending on model
Voltage drop main
cable/outputs
max. 1.2 V
Voltage drop trunk In/Out
0V
Terminating resistor
selectable via Jumper 100  +/- 10 %
Surge protection
trunk, spurs overvoltage protected if voltage exceeds typ.
39 V, max. 41 V
Directive conformity
Electromagnetic
compatibility
Directive 2004/108/EC
EN 61326-1:2006
Standard conformity
Electromagnetic
compatibility
NE 21:2011
Protection degree
IEC 60529
Fieldbus standard
IEC 61158-2
Climatic conditions
IEC 60721
Shock resistance
EN 60068-2-27
Vibration resistance
EN 60068-2-6
16
Ambient temperature
see table 2
Storage temperature
-40 ... 85 °C (-40 ... 185 °F)
Relative humidity
< 95 % non-condensing
Shock resistance
15 g , 11 ms
2014-01
Ambient conditions
F2-SP-IC*
Product Specifications
Technical Data
Vibration resistance
5 g , 10 ... 150 Hz
Corrosion resistance
acc. to ISA-S71.04-1985, severity level G3
Data for application in
connection with Ex-areas
EC-Type Examination
Certificate
Group, category, type of
protection, temperature
class
TÜV 13 ATEX 107689 X
II 3 G Ex nAc [ic] IIC T4 ,
II 2(3) D Ex tb [ic] IIIC T130°C 
(for cable gland version only)
Supply
Maximum safe voltage
35 V
Outputs
Voltage
32 V
Current
46 mA jumper 1, position 2 
65 mA jumper 1, position 1
Inductance
0.25 mH jumper 1, position 1 
0.125 mH jumper 1, position 2
Capacitance
60 nF
Directive conformity
Directive 94/9/EC
EN 60079-0:2012 ,
EN 60079-11:2012 ,
EN 60079-15:2010 ,
EN 60079-31:2009
International approvals
IECEx approval
IECEx TUN 13.0004X
Approved for
Ex nAc [ic] IIC T4 ,
Ex tb [ic] IIIC T130°C (for cable gland version only)
Certificates and approvals
Marine approval
Table 2.1
pending
F2-SP-IC*: Technical data
Technical Data Depending on Model
Number of
outputs
Quiescent
current
470 mW**
6
8
10
max. 15 mA
max. 17 mA
max. 17 mA
max. 19 mA
530 mW**
530 mW**
530 mW**
590 mW**
Technical data depending on model
** + 10 mW per spur at 20 mA load
2014-01
Table 2.2
4
17
F2-SP-IC*
Product Specifications
Variants of Cable Connections, Housing Types, and Temperature Ranges
Type of connection
4
6
8
10
Fixed screw
Pluggable screw
Pluggable spring terminal
Housing height "X"** (mm)
AF (mm)
Temperature range (C°)
Number of outputs
00
Stopping plug
plastic
x
x
x
x
x
x
x
120
8
-40...+70
01
Stopping plug
stainless steel
x
x
x
x
x
x
x
120
10
-40...+70
02
Cable glands
plastic
x
x
x
x
x
x
x
150
24
-40...+70
03
Cable glands
nickel plated
brass
x
x
x
x
x
x
x
140
24
-40...+70
04
Cable glands
stainless steel
x
x
x
x
x
x
x
140
24
-40...+70
05
Cable glands
nickel plated
brass for
armored cable
x
x
x
x
x
x
x
160
24
-40...+70
06
Cable glands
stainless steel
for armored
cable
x
x
x
x
x
x
x
160
24
-40...+70
09, 10
Plug connection
M12 nickel
plated brass
x
x
x
n/a
n/a
n/a
n/a
135
n/a
-25...+70
11, 12
Plug connection
M12 stainless
steel
x
x
x
n/a
n/a
n/a
n/a
135
n/a
-25...+70
Variants of cable connections, housing types, and temperature ranges
** Housing height including trunk surge protection: 170 mm; available for all variants.
2014-01
Table 2.3
18
F2-SP-IC*
F2-SP-IC*
Hazardous Area Installation and Use
3
Hazardous Area Installation and Use
3.1
Installation in Zone 2, no Live Maintenance at Trunk and Spurs
(Ex nAc)
For non-intrinsically safe Zone 2 circuits, live maintenance on the trunk or spurs
must only be carried out with hot work permit.
No special safety requirements exist for the host interface provided the host itself
is installed in the safe area. If the host interface is installed in Zone 2, a declaration
of conformity must be provided.
Field devices and Segment Protectors are located in Zone 2 and therefore need
to be certified for non-arcing protection (Ex nAc). If the fieldbus power supplies
are also located in hazardous area Zone 2, the same requirements apply.
The evaluation of a non-arcing circuit is limited to the maximum voltage of the
fieldbus power supply (Uo) which has to be less than or equal to the maximum
rated input voltage Ui of the Segment Protector and field devices. Field devices
and Segment Protectors following this requirement could be either certified for
non-arcing apparatus equipment or intrinsically safe apparatus according to Entity
or FISCO.
For the requirements for typical fieldbus products for use in Zone 2 installations
refer to the manual: ‘Using Pepperl+Fuchs fieldbus equipment in Zone 2
hazardous area environment’. This document is supplied separately and can be
obtained from the Pepperl+Fuchs Internet product data base.
3.2
Installation in Zone 2 with Live Maintenance at the Spurs (Ex ic,
FISCO ic)
For applications requiring certified output voltages at the spurs in accordance with
IEC 60079–25 (rated as Ex ic or FISCO ic), two solutions are available:
1. The use of dedicated fieldbus power supply modules which safely limit the
output voltage in accordance with IEC 60079–25, using a maximum output
voltage level of Uo  24 V. The current is limited by the Segment Protector.
3.2.1
2. To take into account the Segment Protector internal voltage limitation, in accordance with IEC 60079–25, using a maximum output voltage level of
Uo  32 V. The current is limited by the Segment Protector.
Spur Voltage Limited by the External Fieldbus Power Supply Uo  24V,
Entity Examination
2014-01
When using intrinsically safe fieldbus power supplies to directly limit the spur
output safety voltage, it is necessary to pay particular attention to the type of
fieldbus power supply selected for use with the Segment Protector. This
determines the type of Zone 2 or Div. 2 installations and the certified field
instruments that can be connected, in the Zone 2 or Div. 2 area, to the spurs of the
Segment Protector.
19
F2-SP-IC*
Hazardous Area Installation and Use
A check must be performed to ensure that the correct type of power supply
module is used for the required safety output parameters. For example, the output
voltage must be equal to, or less than the maximum voltage of the connected field
devices.
When a power supply with Uo  24 V is used, the resulting allowed safety output
values for gas groups IIC, IIB, IIA at the spurs are:
F2-SP-IC* allowed safety output values:
■ Uo = 24 V, Io = 65 mA, Lo = 0.25 mH, Co = 60 nF 
(jumper "P" in position "P2")
see Figure 4.2 on page 28
The safety evaluation follows the Entity concept defined in EN 60079-11.
Requirements for typical fieldbus products for use in Zone 2 installations are
summarized in the manual: ‘Using Pepperl+Fuchs fieldbus equipment in Zone 2
hazardous area environment. This document is supplied separately and can be
obtained from Pepperl+Fuchs Internet product data base.
3.2.2
Spur Voltage Limited by the Segment Protector
The fieldbus trunk is rated as non-arcing Ex nAc. Live maintenance at the trunk is
only permitted when gas clearance has been assured.The Segment Protector
includes an internal voltage limitation in accordance with IEC 60079-25, using a
maximum output voltage level of Uo  32 V. If the internal voltage limitation of
Uo  32 V is used, it is required to determine the hazardous location related to the
gas group in which the Segment Protector will be installed.
The jumper "P" determines the setting of two different maximum short circuit
currents, one for gas group IIC, and one for gas group IIB. The spur outputs are
rated as intrinsically safe Ex ic.
Gas groups
Short
circuit
current Io
Capacitance Co
Inductance Lo
32 V,
internal
limitation
IIC
46 mA
60 nF
0.125 mH
Position 2
"P2"
32 V,
internal
limitation
IIB/IIA
65 mA
60 nF
0.25 mH
Position 1
"P1"
 24V, trunk
voltage
limitation
IIC/IIB/IIA
65 mA
60 nF
0.25 mH
Position 1
"P1"
Table 3.1
Jumper "P"
Jumper positions to meet short circuit current limits for different gas groups
as specified by protection type
The requirements for typical fieldbus products for use in Zone 2 installations are
summarized in the manual: ‘Using Pepperl+Fuchs fieldbus equipment in Zone 2
hazardous area environment’. This document is supplied separately and can be
obtained from Pepperl+Fuchs Internet product data base.
20
2014-01
Max.
voltage Uo
F2-SP-IC*
Hazardous Area Installation and Use
3.2.3
Spur Voltage Limited by the External Fieldbus Power Supply, FISCO
Examination
When using intrinsically safe fieldbus power supplies to directly limit the spur
output safety voltage, it is necessary to choose a suitable fieldbus power supply
for use with the Segment Protector. The power supply used determines the type
of Zone 2 or Division 2 installations and the certified field instruments that can be
connected to the spurs of the Segment Protector in the Zone 2 or Division 2 area.
A check must be performed to ensure that the correct type of Power Supply
Module is used for the required safety output parameters. For example, the output
voltage must be equal to or less than the maximum voltage of the connected field
devices.
In case a power supply with Uo  17.5 V is used, the resulting safety output values
for gas groups IIC, IIB, IIA at the spurs that are permitted, are:
■
Uo = 17.5 V, Io = 65 mA, Lo = 0.25 mH, Co = 60 nF (jumper "P" in position
"P2")
see Figure 4.2 on page 28
The safety evaluation follows the FISCO concept defined in EN 60079-11.
The parameters of the cable used must be within the following ranges:
■
■
■
■
■
R' = 15...150 Ohm/km (loop resistance)
L' = 0.4...1 mH/km
C' = 45...200 nF/km (incl. a possibly existing shield)
C' = C'wire/wire + 0.5 * C'wire/shield (with floating field apparatus)
C' = C'wire/wire + C'wire/shield (if the shield is connected to one pole of the
fieldbus devices supply circuit)
From the safety point of view, the maximum length of the Segment Protector spur
cable is 1000 m for IIC and 5000 m for IIB, as each spur output is specified as an
independent FISCO source.
2014-01
Requirements for typical fieldbus products for use in Zone 2 installations are
summarized in the manual: ‘Using Pepperl+Fuchs fieldbus equipment in Zone 2
hazardous area environment`. This document is supplied separately and can be
obtained from Pepperl+Fuchs Internet product data base.
21
F2-SP-IC*
F2-SP-IC*
Installation and Commissioning
4
Installation and Commissioning
In the following section you find information on how to install and commission the
Segment Protector in your fieldbus topology.
Note!
Before performing any work: Read the section on Safety, see chapter 1, especially
all sections that are relevant for your application.
4.1
Mounting and Dismounting
The following section explains how to mount the F2-SP-IC Segment Protector.
The following steps are described in order of mounting:
1. Mounting the housing
2. Suitable trunk and spur cable sizes
3. Mounting cable glands / Mounting plug connectors
To mount the aluminum housing
1. To wall-mount the aluminum housing: Use 2 screws. 
Diameter: 6 mm.
2. Connect trunk and spur lines according to the information given below.
Pay special attention to the torques for the cable glands/plug connectors!
3. After mounting/wiring: Screw tight the aluminum housing cover.
Required tightening torque: 2.5 Nm.
Suitable trunk an spur cable diameters
The following cable sizes can be connected to the Segment Protector:
Type of connection
Cable diameter (mm)
00
Stopping plug plastic
01
Stopping plug stainless steel
02
Cable glands plastic
6 ... 13
03
Cable glands nickel plated brass
7 ... 12
04
Cable glands stainless steel
7 ... 12
05
Cable glands nickel plated brass for armored
cable
10 ... 16 outside
7 ... 12 inside
0 ... 1.25 armored
06
Cable glands stainless steel for armored
cable
10 ... 16 outside
7 ... 12 inside
0 ... 1.25 armored
09, 10
Plug connection M12 nickel plated brass
11, 12
Plug connection M12 stainless steel
F2-SP-IC* cable diameter depending on cable gland/plug connection
For information on the wrench size (AF), see table "Variants of Cable
Connections, Housing Types, and Temperature Ranges" on page 18.
22
2014-01
Table 4.1
F2-SP-IC*
Installation and Commissioning
To install cable glands
Danger!
Explosion hazard
If the cable glands are not fitted correctly, the IP degree of protection cannot be
ensured and the electronic components can be exposed to an explosive
atmosphere.
Check cable glands:
■
■
■
■
■
all screws of the housing / housing cover must be tightened with the
appropriate torque
only cables of the appropriate size must be used in the cable glands
all cable glands must be tightened with the appropriate torque
all seals must be undamaged and fitted correctly
all empty cable glands must be sealed with appropriate plugs
Screw each cable gland onto the respective socket for each spur and each trunk
at the Segment Protector.
Refer to the following table for the tightening torque required to ensure the
protection type/degree of protection.
Tightening torques for cable glands (approx.)
Cable entry type: 
Cable gland
Trunk: Nm (approx.)
Spurs: Nm (approx.)
M20 stopping plug, plastic
-
-
M20 stopping plug,
stainless steel
-
-
M20 plastic
max. 3.75 Nm
max. 3.75 Nm
M20 nickel plated brass
max. 10 Nm
max. 10 Nm
M20 stainless steel
max. 10 Nm
max. 10 Nm
M20 nickel plated brass for
armored cable
max. 20 Nm
max. 20 Nm
M20 stainless steel for
armored cable
max. 20 Nm
max. 20 Nm
F2-SP-IC* tightening torques for different types of cable glands
2014-01
Table 4.2
23
F2-SP-IC*
Installation and Commissioning
To install plug connections
Danger!
Explosion hazard
If the the plug connections are not installed correctly or unused connections are
not secured sufficiently, the IP degree of protection cannot be ensured and the
electronic components can be exposed to an explosive atmosphere.
Check plug connections:
■
■
all connections must be installed correctly and fit tightly
all unused connections must be secured safely
To install each plug connection: Screw the sockets into the respective cable entry
of the Segment Protector for each spur and trunk in use. Observe the torque
required for it! 
Refer to the following table for the tightening torque required to ensure the
protection type/degree of protection.
Plug connections are available for size M12 cable entries.
3
4
3
1
2
1
4
2
M12 x 1
7/8"
The pin assignment of the plug connection depends on the fieldbus technology
used.
Pin assignment of plug connections
Pin
PROFIBUS PA
FOUNDATION Fieldbus
H1
1
PA+
Data-
2
n.c. (GND)
Data+
3
PA-
Shield
4
Shield
n.c. (GND)
Pin assignment of plug connections
Note: Outputs are always sockets (female).
2014-01
Table 4.3
24
F2-SP-IC*
Installation and Commissioning
4.2
Segment Protector Connection Layout of the Trunk
Cable and Connection Information
■ Permissible cross core section: 0.2-2.5 mm²
■ Insulation stripping length: 7 mm
■ If stranded conductors are used: Protect strand ends with end splices.
■ Ensure that connectors are mechanically locked.
■ Torque required for tightening terminal screws: 0.4-0.5 Nm
The Segment Protector can be installed in the segment in 2 ways:
1. Trunk IN and surge protection: With an incoming trunk line and a Surge Protector that uses the housing entry of the Trunk OUT cable.
2. Tunk IN and Trunk OUT: with an incoming and with an outgoing trunk line.
Note!
Restrictions for Applications with M12 Plug Connections
In order to maintain intrinsic safety, for applications that use M12 plug
connections, the Segment Protector can be used in the following ways:
■
■
Trunk IN and surge protection: With an incoming trunk line and a Surge
Protector that uses the housing entry of the Trunk OUT cable.
Trunk IN and stopping plug: With an incoming trunk line and a stopping
plug that closes the housing entry of the Trunk OUT cable. 
If no surge protection is selected, the Segment Protector is preconfigured
with the suitable stopping plug in order to ensure intrinsic safety.
To connect the trunk to the Segment Protector (as single unit or in serial
connection)
1. Connect the trunk wires to the designated Trunk IN terminal.
2. For serial connection: Use the Trunk OUT terminal to connect the outgoing
trunk line to it.
To terminate the Segment Protector
2014-01
If the Segment Protector is installed physically at the end of the fieldbus trunk, the
trunk needs to be terminated by activating the integrated fieldbus terminator. 
Attention: In a segment only 2 terminators are allowed to be activated altogether:
one on either physical end of the trunk.
25
F2-SP-IC*
Installation and Commissioning
1. Loosen the right screw at the terminal that holds the right jumper "T" in parking
position and unplug the jumper.
P1
T
P2
T
+–s +–s
Figure 4.1
F2-SP-IC*: Disclosed housing with focus on right side of the separation
wall, position(s) of the termination jumper.
2. In order to activate termination of the Segment Protector: Shift the jumper to
the left.
3. Tighten the terminal screws to hold the jumper in position.
The trunk line is terminated.
4.3
Segment Protector Connection Layout of the Spurs
Depending on the type of maintenance requirements of the plant, the spurs can
be connected using one out of three different kinds of terminals:
26
2014-01
Cable and Connection Information
■ Permissible cross core section: 0.2-2.5 mm²
■ Insulation stripping length: 7 mm
■ If stranded conductors are used: Protect strand ends with end splices.
■ Ensure that connectors are mechanically locked.
■ Torque required for tightening terminal screws: 0.4-0.5 Nm
F2-SP-IC*
Installation and Commissioning
Connection Types of Spur Terminals
1
2
3
+–s +–s
+–s +–s
Action
1 Spring terminal
2 Removable
screw terminal
Dismounting
Lever out with
suitable tool
Lever out with
suitable tool
n/a
Wiring
Push down clamp
with suitable tool
Undo clamp screw
Undo clamp screw
3 Screw terminal
Gas group selection
The F2-SP-IC* enables you to determine the type of protection required for your
plant. Using the jumper for short circuit limitation, you can change its position so it
either delivers the type of protection IIC or IIB.
For further information see chapter 3.2.2.
To apply the jumper for short circuit current limitation
Danger!
Explosion hazard
Failure to apply the short circuit current limitation in hazardous environments can
result in an explosive atmosphere exposed to too much short circuit current.
2014-01
Ensure to adjust the Segment Protector according to the type of protection
required at your plant.
1. To achieve the type of protection IIC, the jumper for short circuit current must
be set to position "P2".
Loosen the left screw at the first terminal connector that holds the left jumper
"P1" in parking position and unplug the jumper.
27
F2-SP-IC*
Installation and Commissioning
T
P1
P2
T
+–s +–s
Figure 4.2
F2-SP-IC*: Disclosed housing with focus on right side of the separation
wall, position(s) of the protection type jumper.
2. In order to change to Gas Group IIC: Shift the jumper to the right in position
"P2".
3. After you have plugged in the jumper: Tighten the screws to hold it in position.
The Segment Protector is now ready to be operated in Gas Group IIC.
4.4
Grounding / Shielding the Segment Protector and the Fieldbus
Cables
Grounding the Housing
The Segment Protector aluminum housing must be connected to local earth when
installed in an hazardous area. The external M4 earth clamp provides a low
impedance path to earth. To connect the Segment Protector housing to the local
plant earth, use a connection with a minimum cross core section of  4 mm2.
2014-01
Required torque for the grounding screw: 3.5 Nm
28
F2-SP-IC*
Installation and Commissioning
P1
T
P2
T
+–s +–s
Figure 4.3
F2-SP-IC*: Disclosed housing with focus on right side of the separation wall,
and the clamp to use for grounding the housing.
Fieldbus Cable Shielding
Fieldbus supports several methods for cable shield grounding in order to
accommodate differing plant topologies (cf. Foundation Fieldbus "System and
Engineering Guideline" AG-181). The most common topology uses a single point
for grounding, where the cable shield is connected directly to a clean earth at the
control room, while all other shields throughout the segment are left floating. Other
topologies connect the cable shield to earth at multiple points throughout the
segment, in order to maximize protection against EMC disturbance.
2014-01
The F2-SP-IC* Segment Protector offers the option to leave all shields floating or
to connect them all to the external earth clamp of the Segment Protector housing.
29
F2-SP-IC*
Installation and Commissioning
Grounding Jumper in Grounding Position
P1
T
P2
T
1
+–s +–s
Figure 4.4
F2-SP-IC*: Disclosed housing with focus on right side of the separation wall,
and the jumper in position for connecting the shield to earth.
2014-01
1. Grounding position
30
F2-SP-IC*
Installation and Commissioning
Grounding Jumper in Parking Position
T
P1
P2
T
+–s +–s
1
Figure 4.5
F2-SP-IC*: Disclosed housing with focus on right side of the separation wall,
and the jumper for grounding the shield in parking position.
1. Parking position
Warning!
Dangerous atmospheres and plant damages due to communication loss
Connecting signal leads of the spur lines to the earth potential or the cable shield
during plant operation can cause communication loss with the segment. Serious
plant damages or dangerous atmospheres can be the result.
2014-01
Do not connect any signal leads of spur lines to earth potential or cable shield.
After maintenance activities, always ensure that all the wirings have been
reattached properly.
If EMC requires you to ground the shield of the trunk or of the spurs of a fieldbus
transmission line, closely adhere to the information valid for this situation. For
details refer to EN 60079-14 and to the corresponding information of the
respective fieldbus type in use. Information on the fieldbus type is found in the
PROFIBUS PA User and Installation Guideline or FOUNDATION Fieldbus H1
Application Guides.
31
F2-SP-IC*
Installation and Commissioning
4.5
Option: Tag Plate
According to the identifying requirements of your plant, your Segment Protector is
optionally equipped with a tag plate containing unique ID information on the
Segment Protector that you have defined. The embossed stainless steel tag plate
is fixed and lead-sealed to the spur side of the Segment Protector.
4.6
Option: Surge Protection with FS-LBF-I1.32
If required, the F2-SP-IC* Segment Protector can be equipped with an optional
Pepperl+Fuchs FS-LBF-I1.32 Surge Protector of the F*-LBF-I1.32 product line.
F*-LBF-I1.32 are surge protection devices for fieldbus installations. They direct
power surges to earth via gas discharge tubes, protecting field devices and
control units from voltage surges and lightning strikes. They are in accordance
with the fieldbus standard IEC 61158-2 and are certified intrinsically safe Ex ia for
Zone 1, FISCO, and Entity.
Upon delivery, the Surge Protector is mounted on the cable entry for the Trunk
OUT line.
For further information on the Surge Protector, refer to the Instruction Manual
"Fieldbus Surge Protector F*-LF-I1.32.
4.6.1
Servicing the FS-LBF-I1.32 in the Segment Protector
Installation and commissioning of all devices must be performed by a trained
professional only.
The installation instructions in accordance with IEC/EN 60079-14 must be
observed.
2014-01
The dielectric strength of the insulation must be at least 500 V according to
IEC/EN 60079-14.
32
F2-SP-IC*
Installation and Commissioning
Installation of FS-LBF-I1.32 in the Segment Protector
+–s +–s
Ensuring the degree of protection and the type of protection
When servicing the Surge Protector, e.g., to change the seals, observe the
following:
■
Number of thread turns: 5 turns
To prevent the threading from loosening and to ensure the degree of
protection:
- Use lock nuts with seals
- Use Loctite® medium-strong adhesive in threaded holes
2014-01
■
33
F2-SP-IC*
F2-SP-IC*
Operation
5
Operation
5.1
Indicators
The Segment Protectors include the following LEDs:
■
■
■
■
1 LED as indicator for power on the trunk
1 LED as indicator for bus communication activity and the physical layer
diagnostic status
Up to 10 LEDs for up to 10 spurs as short circuit condition or fault indicator
for each output (spur)
1 LED as indicator for trunk voltage > 10 V and Terminator activated
Trunk power LED PWR:
If the fieldbus trunk voltage exceeds 10 V, the LED is ON.
Diagnostic State LED COM/ERR
Depending on the diagnostic state, the diagnostic LED is either ON or flashing.
For further information, please see chapter 5.2.
Diagnostic State
Diagnostic LED
Enunciation
No communication
LED: OFF
Communication active
LED: ON
Maintenance required
LED: 1 pulse per second
Out of Specification
LED: 2 close pulses per
second
Auxiliary alarms:
■ ELS-1 water sensor
alarm
LED: 3 close pulses per
second
LED Sequence
Spur fault LEDs:
Each spur has its individual short circuit fault indicator. If a fault is detected at a
spur, the respective spur fault LED flashes red (at a 2 Hz rate).
Segment
Protector Version
LED Indication
F2-SP-IC4*
SPUR
1
2
SPUR
1
2
3
4
PWR/ PWR COM/
TERM
ERR
5
6
PWR/ PWR COM/
TERM
ERR
F2-SP-IC6*
4
2014-01
3
34
F2-SP-IC*
Operation
Segment
Protector Version
LED Indication
F2-SP-IC8*
2
3
4
5
6
7
3 4
5
6
7
8
9 10
1
SPUR
8
PWR/ PWR COM/
TERM
ERR
F2-SP-IC10*
SPUR
1
2
PWR/ PWR COM/
TERM
ERR
Terminator power LED PWR/TERM:
If the fieldbus trunk voltage exceeds 10 V and the Terminator is activated, the LED
is ON.
5.2
Fault Detection, Physical Layer Diagnostics
The device coupler can monitor the important physical layer parameters for each
participating field device, e. g., communication signal levels and signal jitter. The
monitored values are compared to fixed-limit values derived from the
IEC 61158–2 physical layer specification or from empirical data.
After a fault or deviation has been detected, a single yellow LED serves as fault
indicator at the respective device coupler. For more information see chapter 5.1
Using Pepperl+Fuchs “Advanced Physical Layer” solutions, e. g., the diagnostic
module HD2-DM-A, show the diagnostic state of the individual device in the
specific working environment of the control system. For more information, consult
the documentation of the respective diagnostic product.
5.2.1
Device Signal Level
In order to detect the following kind of faults or problems, device signal level
monitoring and diagnosis are important:
■
■
■
■
Incorrect segment termination
Improper trunk or spur wiring
Loose wires
Water ingress in the device coupler or field instrument housing
The monitoring alarm setpoints are:
Signal level ‘Maintenance required’:
Upp  300 mV or Upp  1200 mV
Signal level ‘Out of Specification’:
Upp  200 mV or Upp  1300 mV
Where Upp is the peak-to-peak signal level
2014-01
5.2.2
Device Signal Jitter
The device signal jitter is the deviation from the ideal timing of the communication
signal. In fieldbus technology, jitter is the deviation of the ideal zero crossing point
of the transmitted signal curve during the nominal bit duration. This deviation is
measured in relation to the previous zero crossing, i. e., the reference event.
35
F2-SP-IC*
Operation
The device signal jitter is the most important parameter to monitor where the noise
can influence the signal.
The monitoring alarm setpoints are:
Jitter level “Maintenance required”:
t  3.5 sec and t  5 sec
Jitter level “Out of Specification”:
t  5 sec
Where t is the jitter error in time
5.3
Fault Isolation
5.3.1
Short Circuit Current Limitation (Static Fault Protection)
The spur short circuit current limitation is designed to protect the entire segment
from failing by limiting the spur current from a direct short circuit (static protection).
If the short circuit current condition exceeds a specified period, the spur is
automatically isolated from the trunk, i. e., it does no longer receive any current.
5.3.2
Spur Contact Bounce Protection (Dynamic Fault Protection)
Periodic or intermittent changes in the current drawn throughout a segment can
cause continuous communication failures up to a point where the segment fails.
Changes in the spur current can occur during connection and disconnection of
the spur wires or due to fractured or loose wires under vibration.
Conventional spur protection is only designed to protect the segment by limiting
the spur current from a direct short circuit (static protection). It does not protect the
segment from periodic or intermittent low-level changes in the segment current
(dynamic protection).
Under vibration, insufficiently attached, fractured, or loose fieldbus wires keep
connecting and disconnecting to the attached field device load. Because the spur
is connected to one field device, the current does normally not increase to a value
that exceeds the short circuit current. Such intermittent current disturbances are
converted into corresponding voltage effects on the trunk. This could cause a
temporary or total loss of communication, even leading to the loss of the segment.
The Pepperl+Fuchs Spur Contact Bounce Protection isolates a faulty spur from
the segment to prevent segment failures caused by intermittent faults that are not
detected by conventional spur protection device couplers.
5.3.3
Progressive Spur Short Circuit Current Limitation (Creeping Fault
Protection)
Conventional spur protection circuits are designed to prevent segment failures
during fast current changes above the rated short circuit current (direct short
circuits).
2014-01
Failure situations, where the spur current progressively increases, cause the
current limiting electronics to dampen the communication signals due to its
increasing impedance. A typical failure situation is water in the terminal
arrangement with increasing conductivity between the fieldbus wires.
36
F2-SP-IC*
Operation
Oscillation sometimes occurs when a fault current is marginally above the current
limiting setpoint and the electronic circuit is just operating. At this point, the
voltage to the fault decreases with a resulting decrease in current that turns off the
current limiting circuit. This cycle continues quite rapidly and can be amplified
when a device is transmitting at the same time. The reaction during this narrow
transition point is unpredictable because not every fault behaves in a repeatable
way. For example, the impedance of water vs. voltage or current can be very nonlinear, with the impedance further varying due to the possible impact of
temperature and conductivity.
The following example shows the criticality of such a fault scenario:
A field instrument with an active backup – a Link Active Scheduler (LAS) – loses
communication to a host in the control room. This situation is due to the low
communication signal during a progressing fault condition. The backup LAS now
activates while the host LAS remains active. At this point, field instruments at
normally operating spurs still ‘see’ the backup LAS which is nearby, as well as the
host. 
With 2 active LAS on the segment, communication clashes and the segment fails.
Pepperl+Fuchs offers the Progressive Spur Short Circuit Current Limitation that
detects slowly increasing spur current and isolates the faulty spur from the
segment to prevent segment failures.
5.3.4
Device Jabber Protection
Specific software or hardware failures can cause a field instrument to
communicate continuously (Jabber). In this event, the device should disconnect
itself from the segment immediately.
The international fieldbus standard IEC61158-2 requires that a field instrument
contains a ‘Jabber Inhibit’ circuit or ‘watchdog’. Up to this point, not all currently
available instruments support or contain the ‘Jabber Inhibit’ ‘watchdog’.
The Pepperl+Fuchs device couplers have a spur dependent ‘Jabber Inhibit’
feature to isolate a faulty field instrument from the segment in such events.
5.4
Accessory: Enclosure Leakage Sensor ELS-1
The FieldConnex® enclosure leakage sensor ELS–1 contains a diagnostic
function to detect water ingress breaches inside housings early. ELS–1 warns of
water ingress before it can adversely affect fieldbus communication, demand high
current levels or cause galvanic corrosion damage to electronics. Compactly
designed ELS–1 fits into most of today’s existing field device housings.
The sensor is designed for use in fieldbus communication topologies according to
IEC 61158–2. ELS–1 conforms to the intrinsically safe FISCO and Entity concepts
and to IEC 60079–11. As an associated apparatus, ELS–1 can be attached to any
fieldbus trunk or spur that is intrinsically safe certified.
2014-01
ELS–1 can be connected in parallel to the spur output cables of Pepperl+Fuchs
device couplers types R2-SP-IC*, F2-SP-IC*, and R4D0-FB-*. Powered by the
spur, ELS–1 requires less than 6 mA for operation.
37
F2-SP-IC*
Operation
Once water is detected, the diagnostic function inside ELS–1 issues an alarm to
the Pepperl+Fuchs Advanced Diagnostics infrastructure. The alarm is transmitted
to the Pepperl+Fuchs ‘Advanced Diagnostic Manager’ software running on the
systems maintenance or operator workstation.
Additionally, ELS–1 issues a visual alarm to help identify the affected
device/housing or validate the error.
5.5
Using Device Couplers in PROFIBUS PA Installations
You need to take special precautions for installations operating under the following
conditions:
■
■
■
With a high level of environmental impact
With vibration or shock
With field devices connecting or disconnecting regularly during operational
conditions
The following precautions are necessary to decrease consecutive failures that
cause a PROFIBUS PA segment to fail:
■
■
In order to disconnect a field device, ensure to adhere to the following
sequence:
1. Unplug the corresponding connector at the device coupler
2. Unscrew the fieldbus wires at the field device
2014-01
■
Regularly check that the terminal connections of the device coupler are
tightened correctly
Increase the RETRY LIMIT parameter of the PROFIBUS master to a
minimum of 4
Note: When using the Pepperl+Fuchs Segment Coupler HD2-GT* series,
the default value of the RETRY LIMIT is already set to 4.
38
F2-SP-IC*
Operation
5.6
Using Device Couplers in FOUNDATION Fieldbus H1
Installations
You need to take special precautions for installations operating under the following
conditions:
■
■
■
With a high level of environmental impact
With vibration or shock
With field devices connecting or disconnecting regularly during operational
conditions
The following precautions are necessary to decrease consecutive failures that
cause a FOUNDATION Fieldbus H1 segment to fail:
■
■
2014-01
■
Regularly check that the terminal connections of the device coupler are
tightened correctly
Increase the STALE_COUNT_LIMIT parameter of the FOUNDATION
Fieldbus LAS or host used to a minimum of 2
In order to disconnect a field device, ensure to adhere to the following
sequence:
1. Unplug the corresponding connector at the device coupler
2. Unscrew the fieldbus wires at the field device
39
F2-SP-IC*
F2-SP-IC*
Appendix
6
Appendix
6.1
Spare Parts, Options, and Accessories
6.2
Name
Description
FS-LBF-I1.32
Surge protection for voltages  typ. 39 V, max. 41 V:
Protects trunk and spurs against overvoltage
ELS-1
Enclosure Leakage Sensor for water detection
Electromagnetic Compatibility Verification in Accordance with EC
Council Legislation Directive 2004/108/EC
Compatibility in Accordance with EN 61326-1:2006 and NAMUR
NE 21:2006 Recommendation
The electromagnetic compatibility – EMC – requirements applicable for electrical
equipment for measurement, control and laboratory use in general are anchored
in the European Standard EN 61326. 3 different performance criteria are
distinguished in this standard:
A category A device operates as intended during the test. This device can
withstand the immunity tests without any noticeable performance degradations
within the specification limits of the manufacturer.
A category B device operates as intended after the test. The device shows
temporary degradation or loss of function of performance during the test but selfrecovers from that state when the exposures are ceased.
A category C device has loss of function, may need manual restoration. During
the test a temporary loss of function is allowed as long as an operator can restore
the device back to operation.
The requirements of the association for standard and control and regulations of
the German chemical industries, defined in the NE 21 recommendation, are partly
higher compared to the test levels and failure criteria defined in EN 61326-1. For
the product qualification, failure criteria and test levels have been selected, always
representing the worst case conditions.
EN 61000-4, as a generic standard, defines the test setups for the specific
required test for EN 61326-1 and NE 21.
2014-01
Applied standards:
■ CE-Conformity 2004/108/EC
■ EN 61000-4, July 2007
■ EN 61326-1, October 2006
■ EN 55011, March 2007
■ NE 21, May 2011
40
F2-SP-IC*
Appendix
Conducted EMC tests:
Immunity
Standard
Type
Test Level
Category
EN 61000-4-2
Electrostatic discharge, direct
contact
6 kV
A
Electrostatic discharge, indirect,
air
8 kV
A
EN 61000-4-3
Electromagnetic field radiated,
radio frequency
10 V/m
A
EN 61000-4-4
Fast transients burst on signal
lines
1 kV
A
Fast transients burst on power
lines
2 kV
A
Slow transient surge on signal
lines
1 kV
B
Slow transient surge on shielded
lines
2 kV
B
EN 61000-4-6
Conducted immunity, radio
frequency
10 V
A
EN 55011
RF conducted emission
Class A
_
RF radiated emission
Class A
_
EN 61000-4-5
Referenced Documents
■
Manual: "Using Pepperl+Fuchs fieldbus equipment in Zone 2 hazardous
area environment"
■
Selection table: Conformity of FieldConnex® Power Hub modules and
Motherboards to Ex ic
2014-01
6.3
41
PROCESS AUTOMATION –
PROTECTING YOUR PROCESS
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TDOCT-3062_ENG
01/2014