power Supplies.pdf

technical datasheettechnical datasheetF610Aredundant fieldbus power system for Foxboro I/A Series ® Control System• Integrated redundant fieldbus powerfor FBM228 FOUNDATION fieldbusmodules• Two levels of power redundancy withcomponent failure alarm• Proven FPS-IPM power modules• DIN rail or panel mount• Integrated fieldbus terminatorsThe F610A fieldbus power system isdesigned to provide redundant Foundationfieldbus power for Foxboro I/A Seriescontrol systems using FBM228 modules. Fourfieldbus segments are supported. The systemcomprises a baseplate which accommodatestwo Foxboro FBM228 modules operatingin redundant configuration, and two MTL-Relcom FPS-IPM power modules for eachfieldbus segment. The FPS-IPM modulesfunction as redundant power conditioners,providing impedance between the input DCpower supply and the fieldbus. One fieldbusterminator is built into each segment.Connectors are provided on the baseplate forprimary and secondary 24V DC input power,together with two-part pluggable terminals forthe fieldbus wiring.Two sub-minature 9-way ‘D’ connectorsprovide the means of connection for theFoxboro ‘fieldbus’ between FBM modules.A separate alarm module (type FPS-ALM)monitors the state of each of the eight powerconditioning modules and the redundantpower inputs. If a fault is detected in any ofthese components, the alarm relay opens andan LED provides visual indication of the fault.This allows failed components to be replacedso that the integrity of the power system ismaintained. The alarm circuitry is galvanicallyisolated from the fieldbus segments andinput power supplies. Connections to thealarm relay are made via screw terminalson the baseplate. Green LEDs on eachpower module and two LEDs on the alarmmodule give clear visual indication that thecomponents are functioning properly.The baseplate has a rigid metal backplate, which provides excellent mechanicalsecurity and is designed for mounting ontoeither horizontal DIN rails or a flat panel.DIL switches on the circuit board allowthe address of each baseplate to be set inaccordance with Foxboro requirements.Accessories include blanking modules toallow the baseplate to be operated in nonredundantpowered mode with a single FPS-IPM module per segment.The F610A is supplied fitted with screwterminal connectors for the fieldbus wiring,together with a pack of four spring-clampconnectors.Foundation fieldbus is a trademark of Fieldbus Foundation , Austin,Texas.EPS-F610A Rev3 090410www.mtl-inst.comenquiry@mtl-inst.com