Used onboard the DDG-1000 destroyer, these custom control cabinets fully automate the alignment and control for EDG system components to supply backup power to the ship when required. These interfaces components include:
– Valves – Dampers – Engineering Control System – Diesel Generator – Supply Tank – Breakers – Audible Alarms – Pressure Sensors – Touchscreen (Local HMI)
Water Mist & Magazine Sprinkling Systems
Since 1997, Fairmount Automation has designed and manufactured military-qualified controllers and control systems for shipboard fire detection, firefighting and fire suppression systems; critical cooling and refrigeration systems; fuel handling and aircraft refueling systems; propulsion and auxiliary machinery; aircraft elevators; aircraft launching systems; and alarm, safety, and warning systems
These systems are used onboard a variety of ship classes to include Ford Class Carriers, Zumwalt Class Destroyers as well as Arleigh-Burke Class Destroyers.
Actuator Motor Controls
Fairmount Automation design, developed, and delivered software that operates the DDG 1000 Chilled Water (CW) and Firemain (FM) Smart Valve Systems. The FM Smart Valve System functions to automatically realign the ship’s FM system in response to battle damage, component malfunctions and overload conditions in order to restore pressure to intact portions of the FM. The CW Smart Valve System functions to refill of the CW expansion tanks and automatically realign the CW system to restore cooling to intact portions of the system.
These actuators interface directly with two pressure transducers that indicate the absolute pressure on piping side A and piping side B of the valve. These transducers are contained in an assembly that is mounted to the inside the actuator body. Piping links each transducer to each valve tap. The sensor assembly contains an isolation valve and bleed valve. The isolation valve allows the pressure sensor to be removed without needing to take the valve out of service. The bleed valve provides a mechanism to discharge any trapped air in the sensor pressure line.
In addition they come with an ethernet interface and 4 analog inputs (all connectorized)
Refrigeration Controls & Critical Cooling
Fairmount has created a reduced-cost Modular Refrigeration System Control Panel (MRSCP) that meets the requirements of NAVSEA PPD 516-8627963 (Procurement Specification, 1.5-Ton Modular Refrigeration System)
This system was designed in order to achieve: – Reduced cost (compared to CVN UMRU control panel) – Source/switch power to JCNS MRU components (compressor, fan, heaters) – Shock: MIL-S-901DIC2 Shock Grade B – Vibration: MIL-STD-167-1 IC2, 4-25 Hz – EMI: MIL-STD-461F, below decks limits – Electrical Power Interface: MIL-STD-1399 Section 300B – Incorporate “information assurance” features – Allow for cable entry from top or bottom – MRSCP design minimizes the number of components and utilizes commercial off-the-shelf (COTS) components wherever possible – Reuses cost-effective, proven components from CVN UMRU design – Minimizes number of fuses – Eliminates voltage monitor – Panel-mounted PLC assembly allows use of built-in PLC indicators (instead of separate panel-mounted indicators)
Heater Controllers& High Power Switching
The A.C. Solid State Controller (ACSSC) controls the temperature of air entering a Heating, Ventilation, and Air Conditioning (HVAC) zone by modulating the amount of power it supplies to the zone’s preheaters. The preheaters are constant resistance heating loads, located in the zone’s intake ducts, that heat air drawn into the zone by the zone’s ventilation fans.
Output power to preheaters can be turned on and off via a switch on the door. Additionally, output power is automatically turned off when power to the ACSSC is cycled and when conditions required for preheater operation are not met. When output power is on, it is modulated to control air temperature as described in the previous paragraph.
Four models of the ACSSC have been developed. The operation and behavior for all models are practically identical. The differences between the models are current rating (45A, 90A, and 135A) and that the 45A version is available with and without an indicator dimming feature.
Aircraft Fueling & Defueling
Fairmount Automation has designed the CVN 78 JP-5 Aircraft Fueling Station (AFS) Dedicated Local Control Station (DLCS) for the Navy. Each AFS may be used to supply aviation fuel (JP-5) to an aircraft or remove fuel from an aircraft and return it to back to the ship’s JP-5 system. The DLCS automates the operation of the AFS in response to remote commands received via the ship’s machinery control & monitoring system (MCMS), local commands generated by a crewmember stationed at the DLCS, and feedback provided by AFS sensors (e.g., flowmeter, liquid detector, pressure sensors, etc.). The DLCS also continuously monitors AFS sensors and reports information regarding the status of the AFS to the MCMS. The DLCS also reports status information to a crewmember stationed at the DLCS via local control and display interfaces integral to the DLCS.