Murphy AS3000 - Manual

AS3000-02127B page 1 of 2

AS3000-02127B

Revised 05-03

Catalog Section 75

(00-02-0525)

Automatic Engine Controller

FW

Murphy

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.).