ASM150
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Automatic Engine Controller Ideal for Generators ■ Solid-state Construction ■ Compatible with Most New or Existing Murphy SWICHGAGE® Monitoring Systems ■ Advanced, Rugged, Reliable Microprocessor Based Design ■ Built-in Crank Disconnect and Overspeed Switch ■ First-out Shutdown LED The ASM150 is a user friendly, solid-state, automatic engine controller. It provides basic automatic start/stop capabilities plus other features found on more sophisticated and expensive controllers. The ASM150 operates from 12 or 24 volt battery. It includes features such as selectable crank and rest cycles, sensing circuit for crank disconnect and overspeed, overcrank, and recrank protection on false starts. Four LEDs indicate first-out shutdown for: low pressure, high temperature, overcrank and overspeed. A fifth LED indicates engine running. Advanced microprocessor circuitry gives the ASM150 high reliability and flexibility. The ASM150 is compact and housed in a corrosion-resistant case. It mounts flush in a panel and requires very little room. Ideal for small generator or engine panels. Compact design ■ Optically Isolated Noise Resistant Inputs ■ Re-Cranks Engine on False Starts ■ Adjustable Lockout Time Delay During Startup ■ Two (2) Element Adjustable Speed Switch ■ Outputs for Cranking and Fuel Valve ■ Outputs for Fault Annunciation ■ Lamp Test Terminal Outputs • 5 A relay for cranking and fuel valve. • 300 mA transistor for fault annunciation. Cycle Crank Timer: Up to 8 attempts. Re-Cranks on false starts (fixed 30 seconds). Crank/Rest Cycle Timing 4 to 25 seconds (adjustable). Lockout Time Delay: 1 to 25 seconds (adjustable). Locks out low oil and high temperature on start-up. Crank Disconnect Speed Setting From 30 to 8500 Hz. Overspeed Trip Point Setting From 30 to 8500 Hz. Magnetic Pickup Input Requires 2V rms minimum. Inputs: Ground or positive inputs for high temperature or low pressure sensors.

LOW PRESSURE HIGH TEMPERATURE OVERCRANK Typical Wiring Diagram 2 Solenoid Fuel Valve Auto Remote 1 Start/Stop Switch Normally Open Push Button For Lamp Test Selector Switch High Temperature Pilot Relay High Temperature Engine Running Engine Failure 1 NOTES 1 Close to start and run, open to stop. Shielded Cable 2 Load not to exceed 5 A. Place reverse bias diodes across induction loads. Magnetic Pickup CAUTION: Certain danger to human and to equipment such as applied in a mobile or marine application may occur if some equipment is stopped without pre-warning. It is therefore, recommended that...