R

M010901

The Generator Controls Division of

Issue 5, revised 04/99

 

Catalogue section 75

KEYSTART 9700 series

MANUAL START ENGINE CONTROLLER WITH AUTOMATIC FAULT PROTECTION SHUTDOWN

The Keystart 9700 range provides for the manual starting and stopping of a standby engine - a generator, pump or other application - with automatic monitoring and shutdown of the engine in the event of a fault.

The 9700 series is pin compatible with the Autostart range: this allows the use of standard wiring for both manual and automatic control panels, simplifying panel design and permitting easy upgrades from a manual to fully automatic control system.

Key features

Keyswitch operation for enhanced security

Up to four fault inputs, configurable for use with contacts which open or close on fault, with wiring to +ve or –ve DC

Options for overspeed protection (magnetic pickup or AC alternator driven) and preheat/auxiliary control.

Pin compatible with Autostart 705, 710, 720 and 730 series.

96 x 96mm DIN standard, front panel mounted case

Switchable 12 or 24 V DC power supply

Operation

The Keystart is powered from the engine battery or similar low voltage DC source. A switch at the rear allows for 12V or 24V operation.

Control of the Keystart and engine is by use of a 3 or 4 position keyswitch on the front facia:-

STOP Removes power from the Keystart, stopping the engine and resetting a latched fault condition.

RUN Energises the Keystart’s RUN relay (enabling the engine fuel or ignition). The fault ‘override’ timer begins as soon as the key is turned (or spring returns) to this position. Once the engine is fully running, Keystart monitors for faults and shuts down the engine if a fault is detected.

START Maintains fuel to the engine, and activates the START output (used for controlling the starter motor circuit). This position is spring-biased to return to the RUN position when the operator releases the key.

AUX (optional: 'A' models only) Provides a switched +ve DC output, used for preheat circuits or auxiliary control (remote power up) of Keystart.

The key is common to all Keystarts and is removable only in the STOP position.

The front facia also has five LED and pictogram indicators for the display of engine fault status:-

Low Oil Pressure

High Engine Temperature

Overspeed (or Plant Fail on non-overspeed units)

Charge Fail

Plant Fail

Product Specifications

Power supply:

Operating voltage:

 

(12V setting)

 

(24V setting)

Steady state

 

9 – 20 V DC

 

18 – 33 V DC

Brown out / cranking

 

<= 5V for 2 secs

 

<= 10V for 2 secs

Current consumption

 

<

150mA

Inputs:

 

 

 

 

Fault switch inputs:-

 

selectable: open or closed, + ve or – ve

+ ve input defined as:

 

80% to 100% of +ve DC supply

– ve input defined as:

 

–1V to +2V w.r.t –ve DC supply

Speed sensing inputs:-

 

 

 

 

Magnetic pickup

 

10 – 60 VAC peak, < 2300 to > 3400 Hz.

AC alternator

 

90 – 350 VAC rms, < 50 to > 60 Hz. nom.

Outputs:

 

(all ratings for resistive load)

Run relay output

 

volt-free SPCO relay contacts

 

 

16 A max. @ 24V DC

Start output

 

+ ve DC (switched)

 

 

16 A max. @ 24V DC

Auxiliary/preheat output

 

+ ve DC (switched)

 

 

15 A max. @ 24V DC

Alarm output

 

– ve DC (open collector transistor)

 

 

300mA max. @ 33V DC max.

Tachometer / calibration

 

To suit 0 – 1 mA, 75 Ohm meter,

Adjustable settings:

 

output = 0.75mA at rated engine speed

 

 

 

 

Fault Override timer

 

< 10 to > 30 secs.

Overspeed trip level

 

< 100 to >130 % of calibrated speed

General:

 

 

 

 

Overall dimensions (w x h x d)

96 x 96 x 130 mm

Panel cut-out size

 

DIN 92 x 92 mm

Weight

 

approx. 500 g

Operating ambient temperature

 

–10oC to +55oC

Case sealing

 

 

IP22

Vibration

 

1G, 50 Hz to 5 kHz.

Chemical/fire

 

case: glass filled Noryl,

 

 

self extinguishing, non-dripping.

 

 

facia: polycarbonate

 

 

 

 

 

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.

Page 1
Image 1
Murphy Keystart 9700 specifications Power supply, Inputs, Outputs, Adjustable settings, General

Keystart 9700 specifications

The Murphy Keystart 9700 is a robust and versatile control system that has been designed to meet the needs of various applications, primarily in the industrial sector. With its advanced capabilities, the Keystart 9700 is particularly well-suited for engine monitoring and control, making it an essential tool for many operators and engineers.

One of the main features of the Murphy Keystart 9700 is its intuitive user interface. The system is equipped with a large display that offers clear visibility of key operational parameters. This includes engine temperature, oil pressure, fuel levels, and more, allowing users to monitor the performance of their engines in real-time. The interface is user-friendly, ensuring that operators can easily navigate through the menu and adjust settings as needed.

Another significant characteristic of the Keystart 9700 is its advanced diagnostic capabilities. The system is designed to provide comprehensive fault detection and troubleshooting information, which helps in identifying issues quickly, minimizing downtime, and increasing overall efficiency. This feature is particularly beneficial in critical applications where engine reliability is paramount.

The Murphy Keystart 9700 also incorporates cutting-edge communication technologies. It supports various communication protocols, enabling seamless integration with other systems and devices. This flexibility makes it a perfect fit for diverse applications, from marine and agricultural to power generation and construction sites.

In terms of environmental resilience, the Keystart 9700 is built to withstand harsh conditions. Its rugged construction and IP67-rated enclosure ensure reliable operation even in extreme temperatures and challenging environments. This durability is essential for applications where equipment is exposed to moisture, dust, or vibration.

Safety is another critical feature of the Murphy Keystart 9700. The system includes built-in safety alarms and shutdown features, which help to protect both the engine and surrounding equipment from potential damage. By providing early warnings, it allows operators to take necessary precautions before more significant issues arise.

Overall, the Murphy Keystart 9700 stands out as a leading solution in engine management technology. Its combination of user-friendly design, advanced diagnostics, robust communication capabilities, and durability makes it an excellent choice for those seeking a reliable and efficient control system for their engines in demanding environments.