Murphy HD9063 Series User's Manual
Contents
1. 3 If cable is shielded connect shield to engine chassis ground To Engine 4 If desired connect a normally open test push button switch erang a To between terminals 8 and 9 or Normally Open Normally Open Shutdown 5 Connect crank disconnect circuit to crank disconnect termi p p Normally Closed Normally Closed _ CU s nals 1 thru 3 as discussed in Crank Disconnect Relay HD9063 USOS Test Function page 2 On HD9063 USOS models connect the DC Positive Pushbutton overspeed circuits 1 thru 3 as discussed in Overspeed Relay and Underspeed Relay Function page 2 a are P 6 Connect the overspeed circuits to overspeed terminals 10 thru gine Grodno From Magnetic Pickup 12 as discussed in Overspeed Relay and Underspeed Relay Function page 2 Figure 3 MAGNETIC PICKUP INSTALLATION A magnetic pickup is an AC generator It is normally installed into the flywheel housing of an internal combustion engine so Gap Chart that the starter ring gear acts upon it to generate a voltage pulse each time a gear tooth passes the end of the sensor wag 1 4 oo 3 4 1 Magnetic Pickup Installation see Figure 5 5 amp 18UNF 083 in 028 in 035 in 055 in Drill and tap a hole in the flywheel housing See Specifications 0 33mm 0 71mm 088mm 1 39 mm ch Chart below for model and thread size IMPORTANT Drilling 3 4 16UNF 015 in 030 in 045 in 062 in kg too deep may damage ring gear teeth Blow chips with air hose 038mm2. 076mm 114mm 1 57 mm when drilling and tapping hole Gap Adjustment Always use a two conductor shielded cable Ground the Insert magnetic pickup and turn until it stops at the face of the gear aa cad dl Back off the gear by turning the pickup counterclock wise 1 4 1 2 or 3 4 turn Figure 4 See Gap Chart above right to determine gap distance based on the turn Check gap clear ance by rotating the gear completely around NOTE Magnetic pickup gap should be adjusted so that the minimum voltage required is attained at the engine s lowest RPM The voltage will increase as the speed increases Never run these wires next to spark plug wires or in wire loom with other wires carrying inductive loads or alternating current After adjusting set locknut Drill and tap casing see thread sizes in Specifications Figure 4 If erratic readings occur remove magnetic pickup and check the magnetic tip for metal chips see Gap Chart NS Murphy Magnetic Pickup Specifications Chart Pickup Total Threaded Thread etna Model Length Length Size NOTE Clean gear casing eat iver Be made g g and madnetie sensor of magnetic material MP3298 3 in 76 mm 3 in 76 mm 5 8 18 UNF of metal chips or filings MP7906 3 in 76 mm 3 in 76 mm 3 4 16 UNF MP7905 4 1 2 in 114 mm 4 1 2in 114mm 3 4 16 UNF Figure 5 Replaces 20 01 0080 and MP100 Lead wire hookup 12 in 305 m
3. for an electric pump or other motor driven device turn off the associated electric motor UNDERSPEED NOTE Underspeed is available on HD9063 USOS models only 1 Loosen locknut on Underspeed set point potentiometer and turn potentiometer fully counterclockwise 2 Reset any associated switches 3 Ground engine ignition system or shut off fuel to engine to dis able engine from starting 4 Loosen locknut on Crank Disconnect set point potentiometer and turn potentiometer fully clockwise 2 Start engine and run at lowest normal operating RPM 3 Slowly turn Underspeed adjustment potentiometer clockwise 5 Operate electrical switch es as appropriate so that engine will f until underspeed switch trips or engine shuts down The LED begin to crank g light should flash 6 While engine is cranking slowly turn Crank Disconnect Set 4 i ly 2 ieee point potentiometer counterclockwise until Crank Disconnect aa otennometer approximate COUMETE ewer tighten locknut LED lights Figure 6 Engine should stop cranking 7 Now turn the potentiometer clockwise 1 16 turn 5 Reset switches as applicable and restart engine NOTE An overspeed test switch connected as shown in Figure 3 8 Enable engine and allow it to start verifying that starter disengages provides a means for decreasing set point for test purposes If starter motor stays engaged too long lower set point slightly by turning potentiometer cou
4. Battery Starter Pilot Relay Crank Enable To Starter Solenoid Figure 1 C Overspeed and Underspeed Relay NOTE Underspeed relay available on HD9063 USOS only The overspeed and underspeed functions of the speed switch may be used in various systems to effect engine shutdown or actuate an alarm in the event of engine overspeed or underspeed Figure 2 illustrates the overspeed underspeed function being used to control a fuel rack solenoid In this application battery voltage is available to the solenoid through normally open contacts of the relay K2 overspeed K1 underspeed If the engine speed exceeds the nor mal overspeed or underspeed set point relay K1 or K2 energizes and this voltage energizes the solenoid shutting down the engine Similarly the normally closed contacts may be used if engine shut down is to be initiated by removal of battery voltage Underspeed Relay K1 Overspeed Relay K2 Contact opens on overspeed or underspeed and drops out solenoid OPTIONAL Switch ls Starter Contactor Relay Starter Figure 2 HD 96044N page 2 of 4 CAUTION PERFORM THE WIRING OPERATION WITH THE POWER SOURCE OFF 0 C 1234567 8910111 1 Connect terminal 5 on the HD9063 to engine ground and connect terminal 4 to battery positive see Figure 3 2 Connect the magnetic pickup cable conductors to terminals 6 and7 K1 K2 E E E E N E S A A E E a
5. HD 96044N Revised 03 01 Section 20 Installation and Operation Instructions for Dual Set Point Speed Switch HD9063 Series ae gt Please read the following information before installing A visual inspection of this product for damage during shipping is recommended before mounting It is your responsibility to have a qualified person install this unit and make sure it conforms to NEC and local codes GENERAL INFORMATION YT D w E d b AVARNIN aw T DA BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT V Disconnect all electrical power to the machine V Make sure the machine cannot operate during installation V Follow all safety warnings of the machine manufacturer V Read and follow all installation instructions Description The HD9063 Series is a unitized two set point speed switch with SPDT relay outputs HD9063 is a PC board configuration with standoffs for mounting in a control panel or cabinet Models are available for crank disconnect overspeed and for underspeed overspeed applications Trip points can be field adjusted on all models LED s next to the set point potentiometers indicate that the trip point has been reached and the relay s have operated An overspeed test circuit is built in it will actuate the output relay at a point below actual overspeed set point The HD9063 can disconnect the starter on automatic start engine applications and shutdown the engine if an overspeed situation occurs Re e
6. el Aguaje MURPHY SWITCH OF CALIFORNIA Tulsa Oklahoma 74147 USA San Luis Potosi S L P M xico 78384 i 41343 12th Street West 1 918 317 4100 52 444 8206264 fax 52 444 8206336 Palmdale California 93551 1442 USA fax 1 918 317 4266 Villahermosa Office 52 993 3162117 1 661 272 4700 fax 1 661 947 7570 e mail sales fwmurphy com e mail ventas murphymex com mx e mail sales murphyswitch com RISO 9007 2000 FM 20420 www fwmurphy com www murphymex com mx www murphyswitch com 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 Printed in U S A HD 96044N page 4 of 4
7. ill four 3 16 in 5 mm diameter mounting holes refer to mounting hole dimensions above 2 Align the plastic standoffs on the HD9063 with the 4 mounting holes and push gently until standoffs snap into place CAUTION Pushing too hard could damage board 4 in 102 mm Mounting Holes GBEAs OVERSPEED MAG PICKUP CRANK DISCONNECTS NO pra RELAY c EXT CONTACTS POWER HOMO 45 67 8 9 101112 A e 2 3 4 in INTERNAL 70 mm CONTACTS it 3 4 in 19 mm Mounting 1 Drill four 1 4 in 6 mm diameter mounting holes refer to mount ing hole dimensions above 2 Secure with four 10 32 screws RELAY FUNCTIONS Crank Disconnect Relay An understanding of the crank disconnect function for your par ticular system is critical to speed switch installation It is also important to consider the 5 A current limitation of K1 relay con tacts Figure 1 illustrates the use of a low current pilot relay to operate the high current starter solenoid In operation battery voltage is supplied through the normally closed contacts of the speed switch crank disconnect relay K1 When the engine starts K1 energizes and its normally closed contacts open This action de energizes the pilot relay and inhibits the starter from operating until the engine nearly stops The normally open contacts may be used if a contact closure is required to disable the cranking func tion for your system Crank Disconnect Relay K1
8. m Replaces 20 01 0081 Lead wire hookup 12 in 305 mm tReplaces 20 01 0082 Lead wire hookup 12 in 305 mm HD 96044N page 3 of 4 ADJUSTING THE SPEED SWITCH Adjustment of the Dual Set point Speed Switch is performed Overspeed and Underspeed when the system is otherwise operational in all respects Set Point Adjustment See Figure 6 for location of Crank Disconnect Underspeed and OVERSPEED ONE eee porgitionmeigis 1 Loosen locknut on Overspeed set point potentiometer and turn Crank Disconnect or Unden peen Potentiometer potentiometer fully clockwise Potentiometer HD9063 USOS f Overspeed Potentiometer 2 Start engine and run at highest normal operating RPM 3 Slowly turn Overspeed adjustment potentiometer counter clockwise until overspeed switch trips or engine shuts down crank ai Overspeed The LED light should flash ae F LED 4 Turn potentiometer approximately 2 clockwise then ie tighten locknut D D l Test ng NO EXT l NO c POWER c E woe af T 7 5 Reset switches as applicable and restart engine 23 6 7 8 9 101112 QSDSSSVSTSSS NOTE An overspeed test switch connected as shown in Figure 3 Figure 6 provides a means for decreasing set point for test purposes 6 If a test push button is installed press push button and verify that overspeed LED Figure 6 flashes and engine shuts down or switch trips Crank Disconnect Set Point Adjustment 1 If engine serves as a backup
9. ngagement of the starter is inhibited until RPM returns virtually to zero HD9063 USOS models allow operation of control circuits according to the speed of the driver or as a pre alarm Two separate adjustable speed switches are included on one common board wt A Sq Model aaa HD 9063 es Oy c DISCONNECT OVERSPEED MAG PICKUP TEST eoa ce xe Moe DISCONNECT ofa RELAY CONTACTS INTERNAL NC F 1 Specifications Power Supply Voltage 5 30 VDC Maximum Current 150 mA Frequency Signal Voltage Magnetic Pickup Signal Models e Minimum 0 35 Vrms e Maximum 60 Vrms Maximum Current Magnetic Pickup Signal Models 4 8 pA Adjustment Range Magnetic Pickup Signal Models e HD9063 Model Crank Disconnect 250 6 000 Hz Overspeed 00 10 000 Hz e HD9063 USOS Model Underspeed 200 5 500 Hz Overspeed 00 10 000 Hz Reset Differential Magnetic Pickup Signal Models e HD9063 Model Crank Disconnect Dropout 160 Hz 5 Overspeed 200 Hz Differential e HD9063 USOS Model Underspeed 5 of Set point Differential Overspeed 55 Hz 10 Differential Output Relay Contact SPDT Resistive Load 2 5 A 30 VDC Adjustment 2 270 turn potentiometer Temperature Range 14 to 158 F 10 to 70 C HD 96044N page 1 of 4 MOUNTING DIMENSIONS HD9063 and HD9063 USOS YN CRANK n DISCONNECT 2 1 4 in o INTERNAL NC 123 Mounting Standoffs 4 Places Mounting 1 Dr
10. nterclockwise in increments of no 6 If overspeed test push button is installed press push button and more than 1 16 turn Re test after each adjustment by starting verify that overspeed LED Figure 6 flashes and engine shuts engine and continue adjustment until starter disconnects as down or switch trips soon as engine starts If starter motor does not stay engaged long enough raise set Warranty point slightly by turning potentiometer clockwise in increments A limited warranty on materials and workmanship is given with this FW of 1 16 turn Re test after each adjustment Murphy product A copy of the warranty may be viewed or printed by f ing t fwmurphy pport ty ht 9 Tighten locknut on Crank Disconnect set point potentiometer going to www fwmurphy com support warranty htm NOTE A starter protection feature prevents starter from being engaged until engine almost completely stops after running CONTROL SYSTEMS amp SERVICES DIVISION FRANK W MURPHY LTD MACQUARRIE CORPORATION M U R P HY P 0 Box 1819 Rosenberg Texas 77471 USA Church Rd Laverstock Salisbury SP1 1QZ U K 1620 Hume Highway 1 281 633 4500 fax 1 281 633 4588 44 1722410055 fax 44 1722 410088 Campbellfield Vic 3061 Australia e mail sales fwmurphy com e mail sales fwmurphy co uk 61 39358 5555 fax 61 3 9358 5558 FW Murphy www fwmurphy co uk e mail murphy macquarrie com au Ailes Pod recs tae Pe sil RBA SAT inion Blvd Antonio Rocha Cordero 300 Fracci n d
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