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SERIES MC-900 MURPHYMATIC

®

MANUAL GENERATOR

ENGINE CONTROL SYSTEM

DESIGN, INSTALLATION

AND OPERATING MANUAL

MC-9142N

Revised 12-00

Section 40

(

00-02-0202)

Summary of Contents for MURPHYMATIC MC-900 Series

Page 1: ...SERIES MC 900 MURPHYMATIC MANUAL GENERATOR ENGINE CONTROL SYSTEM DESIGN INSTALLATION AND OPERATING MANUAL MC 9142N Revised 12 00 Section 40 00 02 0202 ...

Page 2: ...1 Model Numbers 1 3 2 MC 900 2 3 3 MC 900 2 3 Section 4 Installation 3 4 1 Location 3 4 2 Wiring 3 4 3 Overspeed Switch 7 4 4 Pre Operational Check Out 7 Section 5 Operation 8 5 1 Operator Controls 8 5 2 Operating Modes 8 Section 6 Routine Maintenance and Operational Tests 8 6 1 Routine Maintenance 8 6 2 Operational Tests 8 Section 7 Troubleshooting and Repair 8 7 1 Tools Required 8 7 2 MC 900 SEL...

Page 3: ...ures in detail Section 2 Specifications 2 1 Enclosure Type 2 1 1 The MC 900 Series enclosure is designed to be mounted in a standard electrical enclosure for indoor use 2 1 2 The MC 900 Series shares the same enclosure as the A 900 automatic start controller so they can be used interchangeably in a generator control panel 2 2 Power Requirements 2 2 1 The engine controls shutdown circuits and shut ...

Page 4: ...be used to set the overspeed switch at approximately 110 of running speed Hold the switch depressed while adjusting the setting until the overspeed trips When switch is released the set point will be 10 above normal running speed This is the method used to make the factory setting With engine speed at 1800 RPM or 3540 Hz 3 2 1 4 Eight 8 First out Shutdown Circuits provide first out indication of c...

Page 5: ...minals Terminal blocks are provided on both sides of the Control Display enclosure and the Relay Module Torque all terminal screws to 12 inch pound maximum 4 2 Wiring 4 2 1 After the MC 900 has been located and installed the wiring connections can be made This work should be done with all electrical power disconnected from the engine BE SURE THAT THE BATTERY IS DISCONNECTED 4 2 2 All electrical in...

Page 6: ...6 mm 6 3 4 in 171 mm 9 3 8 in 238 mm 6 in 152 mm 4 15 32 in 114 mm Mounting Holes 1 8 in 3 mm diameter 5 in 127 mm maximum between MC 900 and relay module 1 7 8 in 48 mm clearance 1 1 2 in 38 mm clearance 1 1 2 in 38 mm clearance 1 7 8 in 48 mm clearance NOTE Clearance required for wire run Figure 4 1 2 Dimensions ...

Page 7: ...1 22 23 24 25 Over Speed Relay Shut Down Relay Fuel Relay J1 J2 A J2 B J2 C J2 B B FUEL RELAY SHUTDOWN RELAY OVERSPEED RELAY CRANK SIGNAL RUN SIGNAL B B to aux starter solenoid Run signal switched B MANUAL START MODULE Output Barrier Terminal Blocks Input Barrier Terminal Blocks Battery Starter Auxiliary Starter Solenoid B Ground FR Energize to Stop solenoid FR Energize to Run solenoid Fuel relay ...

Page 8: ... D E 4 5 6 7 8 9 10 11 12 13 14 3A Fuse 15 4 16 17 18 19 20 21 22 23 24 25 Over Speed Relay Shut Down Relay Fuel Relay J1 J2 A J2 B J2 C J2 B B FUEL RELAY SHUTDOWN RELAY OVERSPEED RELAY CRANK SIGNAL RUN SIGNAL B B to aux starter solenoid Run signal switched B Battery Starter Auxiliary Starter Solenoid Fuel Pressure B Ground FR Energize to Stop solenoid FR Energize to Run solenoid Fuel relay N C dr...

Page 9: ...ing using the following formulas Refer to Table 4 4 1 to determine if the speed switch setting is below the factory setting listed If required frequency will be higher than the standard increase the setting before proceeding Turn the Overspeed Set pot clockwise to increase setting The adjustment is a 20 turn control without stops at either end 4 4 1 1 Be sure to have a fully charged battery to do ...

Page 10: ... not locked out may be tested as soon as the engine is running or may be tested without starting the engine by turning the Mode Selector switch to RUN position c To test other shutdowns a jumper wire can be used to short the input terminal for that circuit to ground terminal 4 Section 5 Operation 5 1 Operator Controls 5 1 1 Mode Selector Switch allows the operator to start the engine START run the...

Page 11: ...n engine run signal closes to ground at terminal 17 when the Mode Selector switch is in the RUN position and the engine is not shutdown by the MC 900 shutdown circuits 7 2 3 With the Mode Selector switch in the RUN position six of the eight shutdown TATTLETALE circuits are activated and will operate anytime a switch closes from ground to their inputs Circuit Input Output a Oil Pressure Terminal 28...

Page 12: ...5 7 5 0 0 29 0 0 7 5 7 5 7 5 7 5 7 5 7 5 30 0 0 7 5 7 5 7 5 7 5 7 5 7 5 31 0 0 7 5 7 5 7 5 7 5 7 5 7 5 32 0 0 7 5 7 5 7 5 7 5 7 5 7 5 33 0 0 7 5 7 5 7 5 7 5 7 5 7 5 34 0 0 0 0 0 0 0 0 35 13 8 27 6 13 8 27 6 13 8 27 6 13 8 27 6 36 13 8 27 6 13 8 27 6 13 8 27 6 13 8 27 6 37 2 13 8 27 6 13 8 27 6 13 8 27 6 0 0 38 13 8 27 6 13 8 27 6 13 8 27 6 13 8 27 6 39 13 8 27 6 13 8 27 6 13 8 27 6 13 8 27 6 40 13...

Page 13: ...Relay Qty Module 2 2 3 Model Number MC 900 2 24 Waukesha Part Number 40 35 0047 Control Display 40 00 0223 Relay Module 40 00 0224 Relay Part 00 00 2953 Relay Qty Module 2 Table 8 1 Table 8 2 CONTROL SYSTEMS SERVICES DIVISION P O Box 1819 Rosenberg Texas 77471 USA 1 281 633 4500 fax 1 281 633 4588 e mail sales fwmurphy com MURPHY DE MEXICO S A DE C V Blvd Antonio Rocha Cordero 300 Fracción del Agu...

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