F690A Redundant fieldbus power system

Transcription

1 F690A Redundant fieldbus power system Instruction Manual INM F690A

2 Contents Page OVERVIEW DECRIPTION MECHANICAL Mounting INTALLATION Mounting & enclosure requirements urface mounting with kit M T or Gsection DINrail mounting with kit DMK0 or DMK Power Requirements Connections Inputs Alarms Outputs Environmental Testing ROUTINE MAINTENANCE COMPONENT PART NUMBER PART No DECRIPTION PART No DECRIPTION F690ACLPA F690A carrier, Left Hand FPIPM Power Module F690ACRPA F690A carrier, Right Hand FPALM Alarm Module F690ACLPB F690A carrier, Left Hand DMK0 DINrail m ounting kit, T or G section (pack of 0) F690ACRPB F690A carrier, Right Hand M0 urface mounting kit, (pack of 0) F690ACLPC F690A carrier, Left Hand, Pluggable spring clamp BMK08 Mounting kit for one F690A F690ACRPC F690A carrier, Right Hand, Pluggable spring clamp FPBLK0 Blanking Module (pack of 0)* F690ACLP F690A carrier, Left Hand, Pluggable screw terminals F690ACRP F690A carrier, Right Hand, Pluggable screw terminals ufficient to mount 0 x F690A systems * egments that do not require the high availability provided by redundant power conditioning may be operated with only a single FPIPM. In this event, a blanking module should be fitted to the unused slot to prevent an alarm condition. 00 MTL Instruments Group plc. All rights reserved. INM F690A May 00 ii

3 INM F690A May 00 Figure: F690A assembly OVERVIEW The MTLRelcom F690A redundant fieldbus power system provides redundant power conditioning for fieldbus network segments and facilitates the connection of redundant input power supplies. The system is fully hotswappable meaning that individual power conditioning modules and input power supplies can be replaced without interrupting power or communication on the fieldbus segment. An alarm circuit provides warning in case of a power conditioning module or input power supply failure. The system is designed so that power for several fieldbus segments can be provided from a single cabinet with minimal wiring. DECRIPTION This manual describes the installation of a FOUNDATION Fieldbus H four segment backplane with alarm monitoring designed to accommodate four redundant pairs of Relcom IPM power supply and conditioner modules. The backplanes are available in a left hand or right hand version, one being a mirror image of the other, and with or without a redundant host connection. It is intended to be located in the safe area. Host trunk input connections for all four segments are provided in a way connector. The single host option provides a choice of pluggable spring clamp or screwterminals, whereas the redundant host option uses a doubleheight, offset, screw terminal connection. Redundant host connection to host card ingle host connection to host card Host Connection Fixed screw terminal Pluggable spring clamp Pluggable screw terminal egment Connection Pluggable spring clamp Pluggable screw terminal Pluggable spring clamp Pluggable screw terminal Left hand Right hand Left hand Right hand Left hand Right hand Left hand Right hand ystem No. F690ALA F690ARA F690ALB F690ARB F690ALC F690ARC F690AL F690AR FPIPM x 8 x 8 x 8 x 8 x 8 x 8 x 8 x 8 FPALM x x x x x x x x F690ACLPA x F690ACRPA x F690ACLPB x F690ACRPB x F690ACLPC x F690ACRPC x F690ACLP x F690ACRP x Table : The system types and their individual components (see part numbers on opposite page) INM F690A May 00

4 PWR PWR ALM A B PWR PWR ALM A B PWR PWR ALM A B Trunk Trunk OFF 8 Trunk Trunk OFF 8 Trunk Trunk OFF Trunk Trunk OFF ON ON ON ON The field trunk output on each segment, which is directly connected to its respective host, uses a way screw terminal or a spring clamp connector. The input power for all four segments is commoned, but is derived from two independent (bulk) power supplies, diode OR ed to provide redundancy. These power inputs are galvanically isolated from the output fieldbus circuitry by the IPM modules. Alarm circuitry is housed in a separate module which plugs onto the backplane. This module monitors both the power inputs and the outputs and will indicate an alarm condition, via relay contacts, if any one fails. ystem Cabinet egment egment egment egment { { { { 00mm 0mm 0mm mm 0007 GDT GDT GDT GDT C D R C D R C6 C D6 D R R A EGMENT EGMENT EGMENT EGMENT D7 D9 D D D7 D9 B ALARM MODULE A B A B 00mm A D8 0mm Figure : F690AL Left handed circuit board D D6 D0 D8 D0 D B ALARM D CONA D D C C C C A A VA 0VA 0VB VB CON 0 D 0mm Field Enclosure Figure : Typical system connections LH variant shown T T T T Power Power Power Power F8 F8 F8 F8 Up to 0 fieldbus devices Up to 0 fieldbus devices Up to 0 fieldbus devices Up to 0 fieldbus devices mm A A ALARM B A B A INTALLATION 0mm CON 0 D VA 0VA 0VB VB C C MECHANICAL D C C D D B D0 D D8 D0 D6 D D8 A ALARM MODULE B D9 0mm Figure : F690AR Right handed circuit board Board dimensions and hole positions for the lefthanded (i.e. F690A Lx models) and righthanded (i.e. F690ARx models) are shown in figures and above.. Mounting It is recommended that the F690A assembly be mounted on a vertical surface with the orientation of the IPM modules as shown in figures and above. Four mm diameter mounting holes are provided for surface mounting or dual DIN rail mounting. MTL M0 surface, or DMK0 DIN rail, kits may be used for this purpose. When DIN rail mounting, two vertically aligned rails are required with a spacing of 0mm between their centre lines. D7 D D D9 D7 EGMENT EGMENT EGMENT EGMENT A R R R R D6 D D D C6 C C C GDT GDT GDT GDT 0mm 0mm. Mounting & enclosure requirements.. General These power supplies may be mounted in safe areas only and wherever they are located, the mounting conditions must: (a) prevent any form of pollution that could compromise the operation of the unit. For example, an unpolluted location or a suitable enclosure could be chosen. (b) provide an adequate level of mechanical protection. This can be achieved by selecting a protected location, a suitable enclosure, or a combination of both. (c) ensure that all cable entries and connections are secure by making provision for the careful routing and securing of all cables. (d) provide adequate security against unauthorised interference. (e) ensure that the permitted ambient temperature range of the units ( 0 C to 6 C) is not exceeded. Power dissipation within the enclosure and the use of shading against direct sunlight should be considered... Outdoor mounting Where power supplies are to be mounted in outdoor locations, a suitable enclosure with a minimum of IP ingress protection is required. However, in some locations, a higher degree of ingress protection rating is recommended since corrosion resistance may be necessary or desirable and the emphasis should be placed on the suitability for the application. INM F690A May 00

5 . urface mounting with kit M0 Refer to figures,, and 6. a) elect four M x 0mm screws. b) Prepare holes in the mounting surface at centres as shown in figures and, tapping these if retaining nuts are not required. c) Place a locking washer () and a plain washer () over each M x 0mm screw () (figure ). d) Insert the screws through the carrier at each mounting centre (figures and ). e) Fit M x 0mm spacers (), retaining them with retaining washers (6) (figure ). f) Attach the carriers into the predrilled surface holes, retaining the screws with a suitable nut if the holes are not tapped. Carrier circuit board DIN rail mounting foot (7) 6 x ½ inch screw () Locking washer () Plain washer () pacer () Retaining washer (6) Tsection DIN rail (8) Carrier circuit board M x 0mm screw() Locking washer () Plain washer () Carrier circuit board 6 x ½ inch screw () Locking washer () Plain washer () Retaining Washer (6) M x 0mm spacer() DIN rail mounting foot (7) pacer () Retaining washer (6) Figure : urface mounting procedure Gsection DIN rail (8). T or Gsection DINrail mounting with kit DMK0 or DMK0 Refer to figures,, 6, 7 and 8. a) elect two pieces of T or Gsection DINrail of the appropriate lengths for the number of F690A carriers to be mounted. b) Mount the two lengths of DINrail sidebyside at 0mm centres (figure 6). c) Clip the four mounting feet (7) to the DIN rail (8) at the centres shown in figures and. d) elect four No.6 x ½inch screws. e) Place a locking washer () and a plain washer () onto each No.6 x ½inch screw () (figure 7). f) Insert the assemblies through the mounting holes on the carrier (figure 7). g) Fit spacers (), retaining them with the washers (6) (figure 7). h) Locate the assemblies over the mounting feet and attach the screws () to the feet (figure 7). i) For vertically orientated backplanes attach one end stop () to the lower end of each DINrail supporting a column of carriers by clipping the stops into place and tightening the appropriate screw [() for Tsection and () for Gsection DINrails] (figure 8). j) Additional end stops should be attached between carriers to increase the stability of tall columns of carriers. mm ±0. Tsection Gsection 0mm Figure 6: Tsection and Gsection DINrail positioning Figure 7: DINrail mounting procedure Tsection () Gsection () Figure 8: Mounting end stops onto DINrail. Power Requirements Dual redundant power terminals requiring a nominal input voltage of V dc are provided allowing the use of bulk power supplies with a supply range of 80V dc. The cable length to the bulk supply shall be limited to a maximum of 0 metres.. Connections The board connections are located on the left and righthand edges of the board. Refer to figures & for details and positions... Host/system input Each segment is marked with a ( ). The segments are numbered, from the alarm connector end,,, and. The length of each host cable should not exceed 0 metres.... ingle host Fixing screws End stop () OR Gsection () Tsection () A way two part connector (CON0) receives the host/system connections for up to four segments. The plugs may be screwterminal type or spring clamp type. INM F690A May 00

6 ... Redundant host A dual way screw terminal connector receives the two host/system connections for up to four segments. One host is wired to the bottom layer of the connector, and the other host is wired to the upper layer. The two host connections are combined on the board... Alarm contacts The incoming supplies, and the outputs of the individual power modules, Figure 9: Alarm contacts are monitored by the alarm module, which contains a relay. While all of these supplies are healthy the relay is energised to hold a pair of contacts closed. If any one of the supplies fails, the relay opens the contacts. If all of the F690A alarm contacts are connected in series, a single failure will create a change of state alarm. The isolated, alarm relay contacts are available via connections A & A... Fieldbus segments The F690A is available with two output connector options for the four fieldbus segments. a) Pluggable screw terminals (PB & P versions) Conductor size: 0. to.mm b) Pluggable spring clamp terminals (PA & PC versions) Conductor size: 0. to.mm flexible or rigid Each segment terminal is marked, and (creen). The spring clamp terminals have test points built in to them. When connecting to springclamp terminals, use a screwdriver with a mm blade and depress the springclamp button before inserting the termination cable. ee Figure 0... Grounding cable screens A grounding terminal is provided adjacent to the egment output. This terminal should be connected locally to the system ground plane.... Field segment trunk cable screens It is recommended that the field segment trunk cables have their screens connected to the terminals on the F690A; this grounds the cable screens at the power conditioner. In this case, the screen must not be connected to ground at the field end.... Host trunk cable screens It is recommended that the cables from the host to the F690A have their screens connected to its terminals, grounding the cable screens at the power conditioner. In this case, do not ground the screens at the host end. If the cable screen is grounded at the host end, the screen should not then be connected to the terminal at the F690A. Grounding at the F690A is the preferred method, but never ground the screens at both ends... Terminators Terminators are builtin to each fieldbus segment connection to avoid the need for additional wiring..6 Inputs Terminals are provided for dualredundant input supplies A & B. Input voltage 8 0V dc Current consumption ( segments each with 0mA output load).a (typical) at 8V.A (typical) at V.A (typical) at 8V Power dissipation ( segments each with 0mA output load) 0.W (typical) Figure 0: pring clamp terminal connectors on righthand board A B Figure : Input power terminals on righthand board.7 Alarms Alarm contact rating: A 0V dc max Alarm contact status: Normally closed (when powered) Alarm thresholds: Input <8V dc Output <V dc.8 Outputs Number of channels Four Voltage Minimum.0V dc Current 0 to 0mA Output ripple Complies with clause.6. of the fieldbus standard IEC68 Minimum load No load Isolation Fieldbus to power supply: 0V ac rms withstand. egment to segment: 0V ac isolation and 00V dc withstand INM F690A May 00

7 .9 Environmental Location of equipment afe area Ambient temp Operating, optimum orientation* 0 C to 6 C torage 0 C to 8 C Ingress Protection IP0 to B EN 609 (Additional protection by means of enclosure) *Optimum orientation is when the carrier is mounted on a vertical surface as shown in figures and..0 Testing Remove and replace each power module in turn to confirm that the alarm LED illuminates and that the alarm chain gets broken. Disconnecting each power input in turn should also cause the alarm condition, and extinguish the associated alarm green power LED. Check to see that all of the green LEDs on the power modules are lit. Note: The springclamp terminals have their own test points builtin in to the terminal assembly ROUTINE MAINTENANCE Check the general condition of the installation occasionally to make sure that no deterioration has occurred. At least every two years (and more frequently for particularly harsh environments) check: a) the condition of wire connection/terminations/screens. b) the dc output voltage on each of the four fieldbus segments is >V. This can be performed using a multimeter or a Relcom FBT or FBT6 fieldbus tester. c) that the Power A and Power B LEDs on the FPALM module are functioning. d) that the LEDs on all 8 FPIPM modules are on. e) that all of the retaining screws are tight. f) that there are no signs of damage or corrosion. INM F690A May 00

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