Murphy Automatic Engine Controller 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.).