Murphy Switch AS710S User Manual

M010601  
R
Issue 8, revised 06/99  
The Generator Controls Division of  
Catalogue section 75  
(MS5259)  
AUTOSTART 710 (AS710S) series  
PROGRAMMABLE GENERATOR CONTROLLER  
The Autostart 710 provides the control features needed for  
the automatic start, load transfer and shutdown of a  
standby generator or pump. Microprocessor technology  
allows the Autostart 710 to be programmed for use in a  
wide range of engine and generator control applications.  
Key features  
·
Automatic or manual operation, selected by key-switch  
or optional rotary switch.  
·
32 character, back-lit liquid crystal display (LCD), showing  
operating mode, system status, timer information,  
generator RPM/Hz., oil pressure and engine temperature  
·
·
Full programmability of engine control options, timers,  
trip levels, fault options and input/output configurations  
Comprehensive fault protection and alarm system:-  
low oil pressure and high engine temperature alarms  
(using analogue or switch sensors), engine overspeed  
and underspeed, emergency stop, start fail, charge fail,  
high and low battery voltage, 3 programmable fault inputs.  
Product Specification  
·
·
6 programmable outputs, each configurable to one  
of over 30 function types.  
Power supply:  
Pin compatibility with Keystart 9700 range, allowing  
standardisation of panel wiring  
Operating voltage: steady state range  
crank brown-out  
5 – 40 V DC continuous,  
to 0 V for <= 100 mSec  
typically 150 mA  
Current consumption  
Operation  
Inputs:  
The AS710’s operating mode is selected by use of a 3  
position switch:–  
DC inputs (inputs 1 - 5, mains fail):  
positive input voltage range  
negative input voltage range  
Generator AC input:  
operating voltage range  
frequency measurement range  
Magnetic pickup:  
operating voltage range  
frequency measurement range  
Outputs:  
80% to 100% of battery +ve  
–1V to +2V w.r.t. battery –ve  
Off/reset. Removes power from the unit, disabling  
the engine and resetting a latched fault condition.  
Automatic start-up, load transfer and return to  
standby in response to a mains fail or remote  
start condition, with full fault protection.  
90 – 300 V AC rms  
0 – 99 Hz.  
Manual start and stop of the generator, either  
immediately on selecting manual mode or by  
use of remote push button switches.  
7 – 80 V AC rms  
0 – 10 kHz  
(all ratings for resistive load)  
Green and amber LEDs around the switch indicate the  
selection of Auto or Manual modes. On keyswitch versions,  
the key is common to all units and is removable in the Off  
and Auto positions only.  
Start and fuel relays  
+ ve DC (switched SPNO contact)  
16A max. @ 24 V DC  
– ve DC (open collector transistor)  
250mA max. @ 33 V DC  
– ve DC (switched SPNO contact)  
5A max. @ 24 V DC  
Programmable outputs 1 – 3  
Programmable output 4  
Control Outputs  
The following outputs are provided:-  
· Single pole, switched +ve relay outputs for the control  
Programmable output 5  
(default setting: common alarm)  
Programmable output 6  
(default setting: gen. contactor)  
Auto & Manual outputs  
Off/reset output  
+ ve DC (switched SPNO contact)  
5A max. @ 24 V DC  
volt free SPNO relay contacts  
5A max. @ 240 V AC  
+ ve DC (switched), 250 mA max.  
– ve DC (switched), 250 mA max.  
of engine fuel and starter motor circuits.  
· Switched +ve outputs for signalling auto and manual  
modes, plus a –ve DC output for Off/reset.  
· 6 function programmable outputs (see overleaf).  
Fault Protection and Alarm System  
General:  
In Auto or Manual modes, Autostart shuts down and latches  
out the generator on detection of low oil pressure, high engine  
temperature, overspeed, start fail or emergency stop faults.  
The Autostart may also be set up to shut down the generator  
on a low generator frequency or speed condition.  
Overall dimensions (W x H x D)  
Panel cut-out size  
Weight  
Operating ambient temperature  
Case sealing  
96 x 96 x 162 mm  
DIN standard 92 x 92 mm  
approx. 650 g  
–10 to +55 oC  
IP22  
3 additional inputs may be used with remote fault switches  
(giving a ‘shutdown’ or ‘warning’ response), or as control  
inputs with remote contacts or panel switches (see overleaf).  
In order to consistently bring you the highest quality, full  
featured products, we reserve the right to change our  
specifications and designs at any time.  
Non-latching, 'warning only' alarms are provided for high and  
low battery volts, charge fail and mag. pickup fail conditions.  
 

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