PROCESS AUTOMATION Instruction Manual JUNCTION BOXES/ SEGMENT PROTECTORS
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, as published by the Central Association of the "Elektrotechnik und Elektroindustrie (ZVEI) e.v.v", including the supplementary clause "Extended reservation of title". We at Pepperl+Fuchs recognise a duty to make a contribution to the future. For this reason, this printed matter is produced on paper bleached without the use of chlorine.
Junction Boxes/Segment Protectors Table of Contents 1 Introduction...3 2 Fieldbus junction boxes Ex i...5 2.1 Intended use... 5 2.2 Marking... 6 3 Fieldbus junction boxes with short-circuit protection for Category 3G...7 3.1 Intended use... 7 3.2 Marking... 7 3.3 Special features of fieldbus junction boxes with short-circuit current limiting 8 4 Fieldbus junction boxes for installation in safe areas...9 4.1 Intended use... 9 4.2 Special features of fieldbus junction boxes with short-circui current limiting... 10 5 Ambient conditions...11 5.1 Fieldbus junction box Ex i... 11 5.2 Fieldbus junction box with short-circuit current limiting for Category 3 G... 11 6 Mounting and dismounting...12 6.1 General... 12 6.2 Fieldbus junction box Ex i... 12 6.2.1 Fieldbus junction box Ex i in field housing F -JB-...I... 13 6.2.2 Fieldbus junction box Ex i without field housing R-JB-I-...... 13 6.3 Fieldbus junction boxes with short-circuit current limiting for Category 3 G 13 6.3.1 Fieldbus junction boxes in field housing with short-circuit current limiting F -JBSC-...... 14 6.3.2 Fieldbus junction boxes without field housing with short-circuit current limiting R- JBSC-..Mechanical dimensions.... 14 6.3.3 Mechanical dimensions of the F2 housing... 15 6.3.4 Mechanical dimensions of F3 housing... 16 6.3.5 Mechanical dimensions of F4 housing... 17 6.3.6 Mechanical dimensions of F6 stainless steel housing... 18 6.3.7 Mechanical dimensions of R version... 18 Part.-No. 124147, Date of issue 25.05.2004 7 Installation/commissioning...19 7.1 General... 19 7.2 Fieldbus Junction Box Ex i... 20 7.2.1 Fieldbus junction box Ex i in field housing F -JB-I-...... 20 7.3 Fieldbus junction boxes with short-circuit current limiting for Category 3 G 21 7.4 Grounding / shielding of fieldbus transmission lines... 21 8 Connection layout....23 8.1 Connection layout of the F2 and F6 housing as well as the R version... 23 8.2 Connection layout of the F3 housing... 25 8.3 Connection layout of the F4 housing... 26 8.4 Connection layout of plug connectors... 27 1
Junction Boxes/Segment Protectors Table of Contents 9 Maintenance of cable glands...28 9.1 Maintenance of the F -JB -...CG cable gland... 28 9.2 Maintenance of the F -JB...CGB and F -JB -...CGS cable gland... 29 9.3 Maintenance of the F -JB...CGAB cable gland... 30 9.4 Mounting the stop plug... 31 10 Repair and maintenance...31 11 Fault elimination...31 12 Disposal...31 13 Appendix...32 13.1 Accessories... 32 Part.-No. 124147, Date of issue 25.05.2004 2
Fieldbus junction boxes Introduction 1 Introduction Pepperl+Fuchs offers a wide range of fieldbus junction boxes. The following type key provides an overview of the fieldbus junction boxes available: Housing type F2 Aluminum field housings for fieldbus junction boxes with 4, 6, or 8 spurs F3 Aluminum field housings for fieldbus junction boxes with 2 spurs F4 Aluminum field housings for fieldbus junction boxes with 1 spur F6 Stainless steel field housings for fieldbus junction boxes with 4, 6 or 8 spurs R without field housing for 4, 6, or 8 lines for mounting on standard 35mm rail Type JB Junction box JBSC Junction box with short-circuit protection (Segment Protector) Application Empty Standard applications I Intrinsically safe applications Number of spurs 1, 2, 4, 6 or 8 Fieldbus type Empty Suitable for FOUNDATION fieldbus and PROFIBUS MBP (for cable glands only) FF For FOUNDATION fieldbus only (plug version only) PA For PROFIBUS MBP only (plug version only) Trunk connection CG Cable gland, plastic CGB Cable gland, brass, nickel plated CGAB Cable gland, brass for reinforced cable CGS Cable gland, stainless steel C Conduit 7/8B 7/8" plug/socket, brass, nickel-plated 7/8S 7/8" plug/socket, stainless steel M12B M12 plug/socket, brass, nickel-plated M12S M12 plug/socket, stainless steel spurjunction boxes connection Empty Like trunk CG Cable gland, plastic CGB Cable gland, brass, nickel plated CGAB Cable gland, brass for reinforced cable CGS Cable gland, stainless steel C Conduit 7/8B 7/8" plug/socket, brass, nickel plated 7/8S 7/8" plug/socket, stainless steel M12B M12 plug/socket, brass, nickel plated M12S M12 plug/socket, stainless steel 3
Field bus distributor Introduction This instruction manual applies to all fieldbus junction boxes. This instruction manual consists of several sections, as follows: Chapter 2 "Fieldbus junction boxes Ex i" covers all intrinsically safe fieldbus junction boxes for mounting in hazardous areas Chapter 3 "Fieldbus junction boxes with short-circuit protection for Category 3G" covers all fieldbus junction boxes suitable for application in hazardous areas of category 3G zone 2 or Class I, Division 2. Chapter 4 "Fieldbus junction boxes for installation in safe areas" covers all fieldbus junction boxes not suitable for application in hazardous areas. Chapters 5 through 13 discuss general topics which are applicable to all fieldbus junction boxes. 4 Zumutbare Änderungen aufgrund technischer Verbesserungen vorbehalten. Pepperl+Fuchs GmbH 68301 Mannheim Telefon +49 621 776-2222 Telefax +49 621 776 272222 Internet http://www.pepperl-fuchs.com
Fieldbus junction boxes Fieldbus junction boxes Ex i 2 Fieldbus junction boxes Ex i This chaper of the instruction manual applies to the fieldbus junction box Ex i for installation in hazardous areas. It applies only in conjunction with the respective data sheets. These data sheets are available online at www.pepperl-fuchs.com. The operator of the system bears the responsibility in terms of planning, mounting, commissioning, operation and maintenance, especially in conjunction with applications in areas subject to the danger of explosion. 2.1 Intended use Fieldbus devices are often connected via spurs (stub lines) to the main line (trunk) of the fieldbus. Fieldbus junction boxes serve to connect fieldbus devices to a fieldbus transmission line (main line, or trunk). The following versions are available with different outputs for connecting field devices: F2-JB-I... for up to 8 field devices F6-JB-I... for up to 8 field devices F3-JB-I... for up to 2 field devices R-JB-I... for up to 8 field devices F4-JB-I... for 1 field device For details of the type code, please see Kapitel 1 of this instruction manual. Fieldbus junction boxes can be used in any fieldbus system using the "Manchester Bus Powered" technology corresponding to IEC 61158-2. This includes the H1 bus of the FOUNDATION fieldbus and the PROFIBUS PA. In newer documentation, the PROFIBUS PA is also known as the PROFIBUS MBP or PROFIBUS MBP-IS, if the intrinsically safe variants are meant. Fieldbus junction boxes, depending on the ignition protection class of the power supply circuit, may be installed in Category 1 G (Zone 0), 2 G (Zone 1) or 3 G (Zone 2), or in Class I Div. 1 and 2, Class II Div. 1 and 2 or Class III Div. 1 and 2 in the temperature class T4 of a hazardous area. Fieldbus junction boxes that are operated in general electrical systems must not thereafter be operated in electrical systems that are connected with areas subject to the danger of explosions. All applicable laws and/or guidlines for the application or planned use must be observed. Fieldbus junction boxes meet the requirements of both the FISCO model and the requirements of the Entity model. 5
Fieldbus junction boxes Fieldbus junction boxes Ex i Fieldbus junction boxes are only approved for proper professional usage in accordance with the intended purposes. Improper handling will void any claim made under the warrantee and any manufacturer's liability. Protection of operating personnel and the system is not ensured if the module is not used in accordance with its intended purpose. Fieldbus junction boxes may only be operated by trained professionals in accordance with these operating instructions. 2.2 Marking Fieldbus junction boxes intended for mounting in areas subject to the danger of explosion are marked with: Fieldbus junction box F -JB-I... Fieldbus junction box R-JB-I... Pepperl + Fuchs Pepperl + Fuchs D-68307 Mannheim D-68307 Mannheim F -JB-I... * R-JB-I... II 1 G EEx ia IIC T4 X II 1 G EEx ia IIC T4 X * = 2 or 6 Fieldbus junction box F -JB-I... Pepperl+Fuchs Inc. Twinsburg, Ohio 44087 F -JB-I... * II 1 G EEx ia IIC T4 X * = 3 or 4 6
Fieldbus distributor with short-circuit protection for Category 3G 3 Fieldbus junction boxes with short-circuit protection for Category 3G This chaper of the instruction manual applies to fieldbus junction boxes with short-circuit protection, suitable for installation in hazardous areas of Category 3G (Zone 2) or Class I, Division 2. It applies only in conjunction with the respective data sheets. The datasheets are available online at www.pepperl-fuchs.com. The operator of the system is responsible in terms of planning, mounting, commissioning, operating and maintenance. 3.1 Intended use Fieldbus devices are often connected over spurs (stub lines) to the trunk (main line) of the fieldbus. Fieldbus junction boxes serve to connect fieldbus devices to a trunk. The following versions are available with different outputs for connecting field devices: F2-JBSC-... F6-JBSC-... R-JBSC-... For specific details on the type code, please refer to Chapter 1 of this manual. Fieldbus junction boxes can be installed in any fieldbus system using "Manchester Bus Powered" technology in accordance with IEC 61158-2/ISA S50.02 for the United States of America. All applicable laws and/or guidelines for the application or planned use must be observed. Fieldbus junction boxes are only approved for proper professional usage in accordance with the intended purposes. Improper handling will void any claim made under the warrantee and any manufacturer's liability. Protection of operating personnel and the system is not ensured if the module is not used in accordance with its intended purpose. The device can only be operated by trained professionals in accordance with the available instruction manual. 3.2 Marking Fieldbus junction boxes with short-circuit protection for installation in hazardous areas of Category 3G (Zone 2) or Class I, Division 2 are marked as follows: 7
Fieldbus distributor with short-circuit protection for Category 3G Fieldbus junction box F -JBSC... Fieldbus junction box R-JBSC... Pepperl + Fuchs Pepperl + Fuchs D-68307 Mannheim D-68307 Mannheim F -JBSC... * R-JBSC... II 3 G EEx na [L]T4 II 3 G EEx na[l] II T4 X * = 2, or 6 This fieldbus junction box may only be operated by trained professionals in accordance with these operating instructions. 3.3 Special features of fieldbus junction boxes with short-circuit current limiting Fieldbus junction boxes F -JBSC-... (Segment Protectors) have short-circuit current limiting on the output (spur). The maximum permissible current is 40 ma per output. Short-circuit current limiting is activated at 45 ma and has a square characteristic curve. 8
Fieldbus distributors for installation in safe areas 4 Fieldbus junction boxes for installation in safe areas This chapter of the instruction manual applies to fieldbus junction boxes which are not suitable for installation in hazardous areas. It is applicable only in conjunction with the corresponding data sheets. You can access the data sheets at www.pepperl-fuchs.com. Responsibility for planning, installation, commissioning, operation, and maintenance lies solely with the operator of the system. Fieldbus junction boxes for installation in safe areas are available in 2 variants: Fieldbus junction boxes without short-circuit current limiting on output (spur) F -JB-... (with = 2, 3, 4 or 6) or R-JB-... Fieldbus junction boxes with short-circuit current limiting on output (spur), so-called Segment protectors, F -JBSC-... (with = 2 or 6) or R-JBSC-... 4.1 Intended use Fieldbus devices are frequently connected to the trunk of the fieldbus with spurs. Fieldbus junction boxes are used to connect fieldbus devices to a a fieldbus transmission line (trunk). The following versions are available with different outputs for connecting field devices: F2-JB-... and F2-JBSC-... for up to 8 field devices F3-JB-... and F3-JBSC-... for up to 2 field devices F4-JB-... and F4-JBSC-... for 1 field device R-JB-... and R-JBSC-...for up to 8 field devices For specific details on the type code, please refer to Kapitel 1 of this manual. Fieldbus junction boxes can be used in any fieldbus system using the "Manchester Bus Powered" technology in accordance with IEC 61158-2. All applicable laws and/or guidelines for the application or planned use must be observed. Fieldbus junction boxes are only approved for proper professional usage in accordance with the intended purposes. Improper handling will void any claim made under the warrantee and any manufacturer's liability. Protection of operating personnel and system is not guaranteed if this component is used for a purpose for which it was not intended. The fieldbus junction box may only be operated by trained professionals in accordance with these operating instructions. 9
Fieldbus distributors for installation in safe areas 4.2 Special features of fieldbus junction boxes with short-circuit current limiting The fieldbus junction boxes F -JBSC-... and R-JBSC-... have short-circuit current limiting on outputs (spur). The maximum permitted supply current is 40 ma per spur. Short-circuit current limiting is activated at 45 ma and has a square characteristic curve. 10
Fieldbus distributors for installation in safe areas 5 Ambient conditions This chapter of the instruction manual applies to all fieldbus junction boxes. The ambient temperature range of each fieldbus junction box can be found in its data sheet. These data sheets are available for download at http://www.de.pepperl-fuchs.com. 5.1 Fieldbus junction box Ex i At a maxum ambient temperature of 85 C and a maximum current of 3 A, the maximum surface temperature of the distributor is 100 C. 5.2 Fieldbus junction box with short-circuit current limiting for Category 3 G Zone 2 At a maximum ambient temperature of 70 C a maximum surface temperature of 120 C results. 11
Mounting and dismounting 6 Mounting and dismounting This chapter applies to all fieldbus junction boxes. 6.1 General Mounting and dismounting are only to be performed by specially trained professionals. The housings of the fieldbus junction boxes are designed for mounting on walls. For the F2 housing, 2 screws with a diameter of 6mm should be used. For the F3/F4 housing, 2 screws with a diameter of 4 mm should be used. For the F6 housing, 2 or 4 screws with a diameter of 6 mm should be used. Mounting accessories should be chosen corresponding to the existing mounting surface. The selection should be made to ensure a secure attachment. Fieldbus junction boxes of the R version are to be mounted on a 35 mm DIN rail compliant with EN 50022. Recognized rules of the technology and setup requirements must be observed during mounting and dismounting. Especially for tasks on electrical systems, special safety requirements must be observed. Special attention must be paid to the following points: 1. Has the fieldbus junction box been installed in accordance with specifications? 2. Is the fieldbus junction box free of damage? 3. Is IP protection ensured? 4. Are the screws tightened securely? The torque to use on the fastening screws depends on the screws used. The cover screws should be tightened to a torque of 2.5 Nm. 6.2 Fieldbus junction box Ex i When installing the fieldbus junction box Ex i in hazardous areas, the following points are particularly important: 12
Mounting and dismounting 6.2.1 Fieldbus junction box Ex i in field housing F -JB-...I Fieldbus junction boxes must be protected from electrostatic charge. In Category 1G Zone 0, the fieldbus junction box must be installed in such a way that even in the event of occasional service interruptions, ignition sources resulting from sparks due to striking or abrading metal are avoided. Fieldbus junction boxes with plastic cable glands must be installed in such a way that the glands are protected from mechanical damage. 6.2.2 Fieldbus junction box Ex i without field housing R-JB-I-... The fieldbus junction boxes R-JB-I... are designed for installation on standard 35 mm rails in accordance with EN 50 022. They must be installed in a housing corresonding to at least an ignition protection class 20 in accordance with EN 60529. The housing must be suitable for this purpose. For use in Category 1 (Zone 0), the use of a plastic housing is not allowed. If metal housings are used, they must be installed in such a way that even in the event of occasional service ignition sources resulting from sparks due to striking or abrading metal are avoided. If plastic housings are used in Category 2G and 3G (Zone 1 and 2), it must be constructed in such a way that if used as intended, ignition danger from electrostatic charge during maintenance and cleaning are avoided. 6.3 Fieldbus junction boxes with short-circuit current limiting for Category 3 G Fieldbus junction boxes with short-circuit current limiting may only be installed in hazardous areas of Category 3 G (Zone 2) or or Class I, Division 2. The following points are particularly 13
Mounting and dismounting to be considered. Only devices suitable for use in Zone 2 resp. or Class I, Division 2 and at the installation location, and for which the corresponding documents (manufacturer declaration or certificate from inspecting authorities) are in order, may be connected to electric circuits in Zone 2 resp. or Class I, Division 2. 6.3.1 Fieldbus junction boxes in field housing with short-circuit current limiting F -JBSC-... Fieldbus junction boxes must be protected from electrostatic charge. 6.3.2 Fieldbus junction boxes without field housing with short-circuit current limiting R-JBSC-..Mechanical dimensions. Fieldbus junction boxes without field housings must be installed in an enclosure which corresponds at least to ignition protection class 54 in accordance with EN 60529. The enclosure must be suitable for this purpose. If a plastic enclosure is used, then it must be constructed in such a way that if used as intended, ignition danger from electrostatic charge during maintenance and cleaning are avoided. 14
Mounting and dismounting 6.3.3 Mechanical dimensions of the F2 housing 258 228 240 for fixing with screws M6 Figure 6.1: Mechanical dimensions of F2 housing The dimensions X and SW depend on the type of cable gland. The dimensions can be read from the following table: 114 9.5 84 (57) 20 24 X Width across flats SW 15
Mounting and dismounting Type X SW F2-JB...-CG... < 26 mm 20 F2-JB...-CGB... < 26 mm 20 F2-JB...-CGS... < 26 mm 22 F2-JB...-CGAB... < 46 mm 24 Table 6.1: Dimensions of cable glands 6.3.4 Mechanical dimensions of F3 housing 175 163 80 52 X Width across flats SW Figure 6.2: Mechanical dimensions of F3 housing The dimensions X and SW depend on the type of cable gland. The dimensions can be read from Table 6.1. The height of the housing is 58 mm. 16
Mounting and dismounting 6.3.5 Mechanical dimensions of F4 housing X 80 X 52 75 63 X Width across flats SW Figure 6.3: Mechanical dimensions of F4 housing The dimensions X and SW depend on the type of cable gland. The dimensions can be read from Table 6.1. The height of the housing is 58 mm. 17
Mounting and dismounting 6.3.6 Mechanical dimensions of F6 stainless steel housing Figure 6.4: Mechanical dimensions of F6 stainless steel housing The above diagram shows the F6 housing without cable glands. For overall dimensions, the values for cable glands corresponding to Table 6.1 must be added. 6.3.7 Mechanical dimensions of R version Figure 6.5: Mechanical dimensions of R version 18
Installation/commissioning 7 Installation/commissioning This chapter of the instruction manual applies to all fieldbus junction boxes. 7.1 General Fieldbus junction boxes may only be operated by trained professionals in accordance with these operating instructions. Please take the cable parameters to be used from the installation instructions of the corresponding fieldbus system. The insulating length of the leads is 9 mm (only for fieldbus junction boxes with screw terminals). If stranded wires are used, the wire ends must be protected from fraying, for instance by using end splices. The following identifying values must be observed when connecting fieldbus transmission lines: Tightening torque of the screw terminals (if present) 0. 4... 0.5 Nm Tightening torques of the screwed connection of cable pass-throughs: The tightening torques of cap nuts depend on what type of cable is used and must therefore be determined by the user. The cap nuts must be securely tightened. Tightening the cap nuts too tight can have a negative effect on the protection class. The following figures should be taken as rough guides: Type F -JB -...CG F -JB -...CGB F -JB -...CGS F -JB -...CGAB Table 7.1: Tightening torques Cap nut 2.5 Nm 4.11 Nm 4.11 Nm 22 Nm The tightening torques given in Table 7.1 are valid for fieldbus junction boxes for which identical cable glands are used for both trunks and spurs. It is possible for fieldbus junction boxes to be installed with different connection types for trunks and spurs (see Chapter 1). The tightening torques given in Table 7.1 are valid whether or not, for instance, cable glands are used for the trunk or the spurs or both. The power supply must always be through the connector for fieldbus junction boxes with plug connections. The cap nut of the connector is to be hand-tightened. Unused connectors must be secured in such a way that the ignition protection class is maintained. For fieldbus junction boxes with cable glands, power must always be supplied through the input, that is, through the second cable gland from the right (as seen from above) (compare Figure 8.1 and Figure 8.3). 19
Installation/commissioning In order to maintain the ignition protection class, all unused cable glands must be plugged with a suitable closing plug or replaced by a suitable closing screw. The closing plugs and screws must be suitable for this application. 7.2 Fieldbus Junction Box Ex i Fieldbus junction boxes may be installed in accordance with their ratings in zones 0, 1 or 2, or in Class I Div. 1 and 2, Class II Div. 1 and 2 or Class III Div. 1 and 2. In category 1 CG (zone 0), the power supply circuit must comply with ignition protection class "ia". Fieldbus junction boxes must be protected from electrostatic charge. The Declaration of Conformity must be observed. It is especially important to maintain any "special conditions" that may be indicated. If installation is performed in compliance with the FISCO model, the maximum length of each spur is limited to 30 m. If stranded wires are used in hazardous areas, the wire ends must be protected from fraying, for instance by using end splices. The diameter of individual wires in hazardous areas may not be less than 0.1 mm. This also applies to the individual strands of stranded wires. During installation of intrinsically safe fieldbus junction boxes and fieldbus segments, EN 60079-14/IEC 60079-14 should be observed. For the Federal Republic of Germany, the "NationalForeword of DIN EN 60079-14/VDE 0165 Part 1 must also be observed. 7.2.1 Fieldbus junction box Ex i in field housing F -JB-I-... For metallic housings in hazardous areas, a suitable potential equalization compliant with EN 60 079 is required. A ground screw is provided for this purpose on the F2/F6 housings, and a ground terminal on the F3/F4 housings. Connections must be secured against loosening and protected against corrosion. Corrosion protection can be achieved, for example, by using tinned cable plates. Only permanently laid cables and lines must be fed into the cable glands. For the permissible cable diameters, please refer to the respective data sheet. The operator must provide a suitable strain relief (for instance, a suitable cable clamp). The mounting notes in Chapter 6.2.1 must be observed. Before closing the cover, a visual inspection should be performed to ensure that the cover seal shows no visible damage. In case of damage, the seal must be replaced 20
Installation/commissioning with an original seal. The screws on the cover should be tightened to a torque of 2.5 Nm. 7.3 Fieldbus junction boxes with short-circuit current limiting for Category 3 G The integrated fieldbus resistor may only be connected if the fieldbus junction box is the last one on the fieldbus segment and the fieldbus resistor of the field device is not in use. The position of the slide switch can be seen in Figure 8.1 for the F2 and F6 housings, in Figure 8.3 for the F3 housing, or in Figure 8.5 for the F4 housing. Only devices suitable for operation in hazardous areas in Zone 2 or Class I, Division 2 and the local operating conditions may be connected to these circuits (see manufacturer's statement or certificate from inspection authorities). The fieldbus junction box R-JBSC-... should be set up in such a way that at least protection class IP54 according to EN 60529 is maintained. The connection and disconnection as well as the switching of circuits carrying current is permitted only during installation or maintenance, or for purposes of repair. Note: The temporary coexistence of potentionally explosive atmosphere and installation, maintenance, and repair is considered improbable in Zone 2 resp. Class I, Division 2. All unused cable glands must be plugged with a suitable closing plug or replaced by a suitable closing screw. The closing plugs and screws must be suitable for this application. Unused M12 and 7/8" connectors must be secured in such a way that protection class IP54 according to EN 60529 is maintained. M12 and 7/8" connectors may only be connected or disconnected in when power is switched off. 7.4 Grounding / shielding of fieldbus transmission lines Shielding connections of spurs are connected internally with the "S" terminal. Shielding connections of trunks are connected internally with the "T" terminal. The terminals are connected with the external grounding clamp. If the shields of spurs will be hard grounded, only terminal S needs to be connected via accessory part JB-BR-TB with one of the terminals. 21
Installation/commissioning If the shields of trunks will be hard grounded, only terminal T needs to be connected via accessory part JB-BR-TB with one of the terminals. By connecting a suitable capacitor between the and "S" or "T" clamps, a capacitive ground of the shield of the corresponding fieldbus transmission line is achieved. If terminals "S" or "T" are not connected with terminal, the shield of the fieldbus transmission line in question is not grounded. If the shield of the trunk or spurs of a fieldbus transmission line is grounded due to EMC considerations, Section 12.2.2.3 of EN 60079-14 and Section 3.3.3 of the PNO Handbook PROFIBUS MBP, or Sections 6.2 and 6.3 of the FOUNDATION Fieldbus Application Guides, should be closely observed. Further information about grounding can be found in the "Wiring + Installation Guide" or in the "FOUNDATION Fieldbus Pre-Engineering Document" from Pepperl+Fuchs. 22
Installation/commissioning 8 Connection layout. 8.1 Connection layout of the F2 and F6 housing as well as the R version Wall mounting Screw o 6 mm Fieldbus junction boxes for intrinsically safe fieldbus systems are identical to standard fieldbus junction boxes in terms of their layout. If fieldbus junction boxes are used for intrinsically safe fieldbus systems, the connections for the trunks and spurs (position and terminal designation) are identical to the connections of intrinsically safe trunks and intrinsically safe spurs. The same applies for cable pass-throughs and connectors. Connections for spurs Connections for trunks Slide switch fieldbus terminating resistor (only for non-ex versions) Fastening option for cable connector with cable fastener Cable pass-through for spurs Input Output Cable pass-through for trunk Grouding screw Figure 8.1: F2 housing (4, 6 or 8 outputs) SPUR 1 SPUR 2 SPUR 3 SPUR 4 SPUR 5 SPUR 6 SPUR 7 SPUR 8 TRUNK IN TRUNK OUT SHIELD 10+ 11-12s 13+ 14-15s16+ 17-18s 19+ 20-21s 22+ 23-24s 25+ 26-27s 28+ 29-30s 31+ 32-33s 1+ 2-3s 4+ 5-6s T S Figure 8.2: Connection layout of the terminal strip in the F2 and F6 housing as well as in the R version (4, 6 or 8 outputs) Terminal 10+, 13+, 16+, 19+, 22+, 25+, 28+ and 31+ 11-, 14-, 17-, 20-, 23-, 26-, 29- and 32- Function Spur (Spur) + Spur (Spur)- 23
Installation/commissioning Terminal 12s, 15s, 18s, 21s, 24s, 27s, 30s and 33s Function Spur (Spur) shield 1+ Trunk, input (Trunk In)+ 2- Trunk, input (Trunk In) - 3s Trunk, input (Trunk In), shield 4+ Trunk, output (Trunk Out) + 5- Trunk, output (Trunk Out) - 6s Trunk, output (Trunk Out), shield T Trunks, shield S Spurs shield Potential equalisation The 3s and 6s terminals are internally connected to terminal T. Terminals 12s, 15s, 18s, 21s, 24s, 27s, 30s and 33s are connected internally with terminal S. The terminals are connected to the external grounding terminal. 24
Installation/commissioning 8.2 Connection layout of the F3 housing Slide switch fieldbus terminating resistor (only for non-ex versions) Connections for spurs Connections for trunk Wall mounting Screw o 4 mm Grounding clamp Cable glands for spurs Input Output Cable glands for the trunk Figure 8.3: F3 housing (2 outputs) SPUR 1 SPUR 2 TRUNK IN TRUNK OUT SHIELD Figure 8.4: Connection layout of the terminal strip in the F3 housing (2 outputs) Terminal Function 7+ and 10+ Spur (Spur) + 8- and 11- Spur (Spur) - 9s and 12s Spur shield 1+ Trunk, input (Trunk In) + 2- Trunk, input (Trunk In) - 3s Trunk, input (Trunk In), shield 4+ Trunk, output (Trunk Out) + 5- Trunk, output (Trunk Out) - 6s Trunk, output (Trunk Out), shield T Trunks (Trunk), shield S Spurs (Spur). shield Potential equalisation 25
Installation/commissioning The 3s and 6s terminals are internally connected to terminal T. Terminals 9s and12s are connected internally with terminal S. The terminals are connected to the external grounding terminal. 8.3 Connection layout of the F4 housing Wall mounting Screw o 4 mm Cable gland for the trunk (Input) Cable gland for the spur Cable gland for the trunk (Output) Slide switch for fieldbus terminating resistor (non-ex versions only) Grounding clamp Figure 8.5: F4 housing (1 output) TRUNK IN SPUR TRUNK OUT SHIELD Figure 8.6: Layout of the connections of the internal terminal strip in the F4 housing (1 output) Terminal Function 1+ Trunk, input (Trunk In) + 2- Trunk, input (Trunk In) - 3s Trunk, input (Trunk In), shield 4+ Spur (Spur) + 5- Spur (Spur) - 6s Spur (Spur) shield 7+ Trunk, output (Trunk Out) + 8- Trunk, output (Trunk Out) - 9s Trunk, output (Trunk Out), shield T Trunks (Trunk), shield S Spurs (Spur). shield Potential equalisation 26
Installation/commissioning The 3s and 9s terminals are internally connected to terminal T. Terminal 6s is connected internally with terminal S. The terminals are connected to the external grounding terminal. 8.4 Connection layout of plug connectors M12 connectors 7/8" connectors Socket female Plug male Socket female Plug male 3 4 4 3 3 1 1 3 2 1 1 M12 2 4 2 2 7/8" 4 Figure 8.7: Layout of the connections on the connectors: In the case of connectors, contacts vary depending on the fieldbus system used. PROFIBUS MBP FOUNDATION Fieldbus Pin Signal Signal 1 PA+ Data - 2 n. c. (GND) Data + 3 PA- Shield 4 Shield n. c. (GND) 27
Maintenance of cable glands 9 Maintenance of cable glands 9.1 Maintenance of the F -JB -...CG cable gland 1. Insulate the covering of the cable to around 160 mm. 2. Loosen the cap nuts from the fieldbus junction box and push it onto the cable. Remove the seals from the fieldbus junction box as well and push them onto the cable. The following table details when seal 1 must be installed and when it may be omitted: Type Terminal area [mm] Seal 1 M16 x 1.5 5-10 No M20 x 1.5 5-8 Yes M20 x 1.5 8-13 No Seal 2 must always be used! 3. Push the seal used onto the cable so that the insulation sticks out of the seal about 5 mm. 4. Push the cable and all seals used into the cable gland of the fieldbus junction box. Then tighten the cap nut. The tightening torques of cap nuts depend on what type of cable is used and must therefore be determined by the user. A good general rule for fieldbus junction boxes of type F -JB -*.CG is 2,5 Nm for the cap nuts. Observe the notes on page 19 of this instruction manual. Step 1 Step 2 Seal 1 Seal 2 Step 3 Step 4 28
Maintenance of cable glands 9.2 Maintenance of the F -JB...CGB and F -JB -...CGS cable gland 1. Insulate the covering of the cable up to about 160 mm. 2. Loosen the cap nuts from the fieldbus junction box and push it onto the cable. 3. Remove the seals from the fieldbus junction box as well and push them onto the cable. Move the inside plastic part far enough over the cable that the covering is completely surrounded by the seal. The insulation should not come further than the end of the inner plastic piece. 4. Pull the shield over the inside plastic part and shorten it to the correct length. The shield should project about 3 to 4 mm over the O ring. 5. Push the cable and inner plastic piece into the lower part of the cable gland. 6. Then tighten the cap nut. The tightening torques of cap nuts depend on what type of cable is used and must therefore be determined by the user. A good general value for fieldbus junction boxes of type F -JB -...CGB and F - JB -...CGS is 4.17 Nm. Please observe the information on page 19 of this instruction manual. Step 1 Step 2 O ring Inner plastic piece Step 3 O ring 3 to 4 mm Step 4 Step 5 Step 6 29
Maintenance of cable glands 9.3 Maintenance of the F -JB...CGAB cable gland For this cable gland, the type ADE No. 6 type 4F is used. For handling, please refer to the following overview: 30
Maintenance of cable glands 9.4 Mounting the stop plug A cable pass-through that is not being used must be provided with a stop plug to maintain the protection class. When mounting the stop plug, the cable pass-through must be provided with all seals. Stop plug Cap nut Lower part 1. Remove the cap nut from the lower part if this has not already been done. 2. Push the stop plug up into the cable pass-through as far as it will go. 3. Tighten the cap nut securely. Note the tightening torques in Chapter 9.1 and in Chapter 9.2. 10 Repair and maintenance The transmission behavior of the fieldbus junction box is stable even over long periods of time. There is thus no need for regular adjustments or similar tasks. Maintenance is therefore not required. 11 Fault elimination Fieldbus junction boxes that are operated in connection with areas subject to the danger of explosion must not be modified. If there is a defect, the fieldbus junction box must always be replaced. Defective housing parts (for example, cover seals) may only be replaced by original parts. Tasks for eliminating malfunctions must only be performed by specialists who are specially trained and authorised for the task. 12 Disposal Disposal of the packaging and fieldbus junction box must only take place in accordance with the requirements of the country in which the segment coupler is installed. The fieldbus junction box does not contain any batteries that must be disposed of separately from the fieldbus junction box. 31
Appendix 13 Appendix 13.1 Accessories Function Moulded seal for F2 housing Cap M12 connector Stop plug for M16 cable gland Cap for 7/8" connector Stop plug M20, approved for hazardous area Shorting links Type code F 2 04-AVP3E VAZ-V1-B M16-CG Plug V9-R-F-COV M20 Ex JB-BR-TB 32
The general terms of delivery for products and services produced or provided by the electrical industry as published by the Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.v. in its most recent edition as well as the supplementary proviso: "Extended property proviso" are applicable. We at Pepperl+Fuchs feel obligated to contribute to the future; this publication is, therefore, printed on paper bleached without the use of chlorine.
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