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DIESEL ENGINE CONTROL AND GENERATOR EQUIPMENTS >> FW MURPHY Controls (Compressor, Power Generator& Engin >> Engine Controllers (Electronic)
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FW MURPHY Controls (Compressor, Power Generator& Engin
Controllers and Annunicators (Gas Compression)
Engine Controllers (Electronic)
- Engine Integrated Control System (EICS)
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- Keystart 9620
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PowerCore Diesel Engine Panels
Keystart 9620



Keystart 9620

  • Operator Controlled Start/Stop
  • Automatic Fault Shutdown
  • Keyswitch Operation
  • Timed Preheat Output
  • Overspeed Shutdown, Magnetic Pickup or Generator AC Driven

http://www.rekarma.com.tr/yonetim/urunresimb/913_1.jpg

Description

Keystart 9620 series control modules provide manual start/stop and automatic fault protection for generators, pumps and other engine-driven applications.

Operator control is by a 3 position keyswitch, with the key removable only in the Stop/Reset (O) position. Outputs are provided for the control of engine fuel (energised to run), starter motor and preheat. The Keystart also has an alarm output for remote/audible warning of faults.

Indication of engine status and faults is by six LEDs and pictograms. Four switch inputs (closing to negative on fault) provide for automatic shutdown on engine low oil pressure, high coolant temperature and auxiliary faults. Model 9621 has a fully adjustable engine overspeed shutdown feature, configurable for either generator AC or magnetic pickup speed signals. Charge alternator excitation and a charge fail warning LED are fitted as standard.

Electrical connection is by quick-connect, spring-clamp terminal blocks. A universal 7 to 30VDC power supply allows operation with 12 or 24VDC engine batteries, with engine crank-dip voltage protection fitted as standard.

Keystarts are front-of-panel mounted through a standard square cut-out, and secured at the rear with quick-fit clips. Epoxy-resin case encapsulation gives superior vibration/ shock resistance and environmental protection.

Specifications

Power Supply

Operating Voltage:

  • Steady State: 7 – 30 VDC
  • Brown out/cranking: 5 VDC
  • Current consumption: < 100mA 

Inputs

Fault switch inputs:  close to negative DC during fault

–ve input defined as:  –1V to +1V w.r.t. – ve DC supply

Speed sensing inputs (model 9621 only): 

  • generator AC:70 – 270 VAC rms, <50 to >60 Hz. nominal
  • magnetic pickup: 3.5 – 21 VAC rms, <2000 to >6500 Hz. nominal

Outputs

(all ratings non-reactive)

Run (fuel), preheat: positive DC, NO relay contacts, 10 A max. @ 24 V DC

Start (crank):  positive DC via keyswitch contacts, 10 A max. @ 24V DC

Alarm: negative DC (open collector NPN transistor), 250mA max.

Speed calibration:  to suit 0 – 1 mA, 75 Ohm meter, output = 0.75mA at rated engine speed

Adjustable Settings

Preheat timer: 0 or 10 secs (links J1 & J4), default = 0 secs

Fault Override Timer: 2 to 20 secs (VR1), default = 10 secs

Overspeed Trip Level: 100 to 130 % (VR3) of  nominal speed calibration (VR2), 
default = 110% (of 50 or 60 Hz)

General

Overall dimensions (w x h x d): 96 x 96 x 95 mm / 3.8 x 3.8 x 3.7 in.

Panel cut-out size: DIN 92 x 92 mm / 3.6 x 3.6 in.

Weight: approx. 300 g / 0.7 lb

Operating Temperature: –35°C to +55°C / –31°F to 131°F




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Literature
 Engine and Generator Controls_En
 Installation Instructions_En




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