Key features, Power supply, DC Inputs | Murphy AS3000 instruction

Automatic Engine Controller

AS3000-02127B

Revised 05-03

Catalog Section 75

(00-02-0525)

FWMurphy

AS3000 Model

■Auto crank disconnect

■Multi-attempt starting

■Fault warning and shutdown

■Reduced panel wiring

■Simple set set-up

Description

The AS3000 provides automatic start up, fault mon- itoring and shutdown control for engine driven applications. The unique two-module design, with a single interconnecting lead, gives reduced panel wiring and installation. This simple, compact unit is ideally suited to small engine and generator panels.

Key features

•Multi-attempt cranking with auto crank disconnect

•Automatic or manual modes, selected by front facia pushbuttons. Control inputs for optional

security keyswitch.

•User inteface module: front of panel mounted, 92mm square DIN cut-out. Environmental

sealing to IP65

•Panel interface module: DIN rail mounted PCB tray.

•Fault shutdown and indication system. Low oil pressure, high coolant temperature and auxil-

iary inputs are fitted to both modules, allowing use with engine mounted fault switches or panel mounted SWICHGAGE® units.

•Speed sensing (auto crank disconnect and over- speed shutdown) is via magnetic pickup, gen-

erator AC or remote contact. Speed calibration is automatic and adjustment free.

•Mains charger/charge alternator fail warning LED.

•Easy setup of operating options using circuit board links.

•Generator AC Hz meter output, 0 – 5V.

Product Specification

Power supply

Continuous voltage range: 8 – 35 VDC

Brown out voltage: < 5 VDC for 2 secs

(recovery to 8V)

Blackout voltage: 0V for 50mS (from 10V, recovery to 5V)

Overvoltage withstand: 50 VDC for 5 sec- onds (to SAEJ1810 load dump immunity)

Reverse voltage withstand:

100 VDC continuous.

Current consumption (standby): 50mA.

Current consumption (max): 500mA (plus

output loads).

DC Inputs

Oil pressure, coolant temp, auxiliary and charger faults: Closed to negative DC

(±3V) on fault.

Remote start positive: Open from positive

DC to start.

Remote start negative: Close to negative DC

(±3V) to start.

Lamp test: Close to negative DC (±3V) to activate.

DC input protection: ± 50 VDC maximum.

AC Inputs

Magnetic pickup: 3 – 60 VAC, 50Hz – 10 kHz.

Generator AC: 600 VAC maximum (L-L or L-N), 50/60 Hz.

Outputs

Fuel: positive DC (transistor), 5A max.

Crank, preheat: positive DC (transistor), 2A max.

Common alarm, fault lockout: negative DC

(transistor), 300mA max.

Generator Hz. Meter: 0 - 1mA (@ 45 - 65 Hz).

Physical

Dimensions: see “System Overview” on page 2.

Operating temperature: 14 to 149°F (-10 to +65°C).

Relative humidity: 95% @ 140°F (60 °C).

Environmental protection: AS3000 front: IP65, NEMA4.

Back of User Interface and Panel interface require weather-proof enclosures for outdoor use.

Vibration: ISO 88528 pt.9, & 3 axis 3g.

Weight:

AS3000 User Interface: approx. 9 oz. (250g).

AS300 Panel Interface: approx. 6 oz. (160g).

Shipping Weight: 1 lb. 4 oz. (554 g.).

Shipping Dimensions: 7-3/8 x 5 x 3-1/8 inch. (187 x 127 x 79 mm.).

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