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Complete Locomotive Control – With hundreds of units in service, the SAL™ System is the optimal choice for upgrading older locomotives with microprocessor control of key locomotive systems including:

• Advancedwheelslipandadhesioncontrol for better pulling power• Engineandcoolingsystemcontrolto maximizefuelefficiency• Generatorcontrolforloadinganddynamic brake • Controlofaircompressorandother accessory systems• Tractionmotoroverloadprotection

FeaturesRugged design application – Designed specificallyforthelocomotiveworkenvironment,the SAL system uses electronic components designed for severe vibration, shock, and thermal loads.Extremelyruggedconnectorsareusedtoconnect the locomotive control wiring harness to the SAL microprocessor rack system.

Modular Architecture–Thecontrolmodulesaremounted in a shock resistant rack, allowing the systemtobecustomizedforspecificlocomotiveretrofits.Onlythenecessarylocomotivecontrolmodules need be installed because the modular enclosure can be easily upgraded in the future.

Pre-Wired Control Panels and Harnesses – TheSALcontrolsystemcanbeprovidedinpre-wired panels that allow and quicker installation. Inmanyapplications,thepre-madeharnessesincludevirtuallyalllow-voltagewiring,makingsetup even easier.

Display System –Thecolortouchscreenpanelis the operator interface for tracking locomotive performance and troubleshooting. Locomotive and engine performance parameters can be displayedreal-timeduringoperationorload test (on applicable locomotives).

Telematics – an optional telematics package provides locomotive tracking and remote locomotive diagnostics, allowing the locomotive tobetrackedfromtheofficethroughsecureinternet-basedservices.Additionally,remotediagnostic services and technical assistance plans are available.

LOCOMOTIVE PRODUCTS

SAL™ Microprocessor Control System Upgrade for Older Locomotives

Reliability–TheSALlocomotiveretrofitfundamentally replaces older locomotive control system components and wiring with modern, reliablecomponents.Thelow-voltagecontrolwiring on the locomotive is replaced with new exane or equivalent wiring. And most of the olderrelaysareconvertedtomodern,solid-statecontrol.

Increased Locomotive Performance–Theadvanced microprocessor control algorithms and circuits within an SAL system result in a typical8%to12%improvementinall-weatheradhesion. And some locomotives with SAL retrofitshaveachievedbetterthan30%adhesionat stall conditions.

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Typical SAL Applications

Zeithasspecializedinthedesignandmanufactureofembeddedsystemsforlocomotivessince2001.It is a leader in the railway automation industry, primarily manufacturing the SAL microprocessor system forlocomotivecontrol,increasedadhesion,andremotediagnostics.In2010ZeitbecameasubsidiaryofProgressRailServices,aCaterpillarCompany

Zeit Control Engineering

On-Board Locomotive Diagnostics for Improved Availability -TheSALdisplaypaneloffersimprovedlocomotive diagnostics and performance tracking. Maintenance personnel can easily identify and rapidly remedy problems, reducing shop time.

Fuel and Cost Savings –Theimprovedperformanceof the locomotive allows you to more reliably pull morefreightandwithgreatermissionreliability.Thiscan improve overall fuel savings while reducing operating costs.

Automatic Engine Start/Stop System (AESS) – TheSALsystemcanautomaticallyshutdownthe diesel engine rather than wasting fuel with unnecessary idling. By monitoring many parameters, including coolant temperature, air pressures, battery voltages, and more, the engine can be automatically re-startedtokeepthelocomotiveinasafeoperatingconditionandreadyforservice.InstallationsofAESSsystemsalonetypicallyresultina3%fuelsavings.

 C30-7Locomotive SD40-2Locomotive

Benefits