Murphy ST8 User's Manual
Contents
1. supplied with the TATTLETALE These labels are precut pressure sensitive and when properly applied are permanent To insure proper label application perform the following steps 1 Be sure the TATTLETALE s faceplate is clean and free of oil Customer Supplied Bracket Mounting Screws 3 Gimbal Bracket Mounting Bracket Knobs 2 3 Insert the TATTLETALE into the hole through the front of the panel 4 Install the four 6 32 x 5 8 screws supplied Mounting Holes TATTLETALE Flushmount Bracket Bracket Mounting Screws 2 Mounting Screws 4 2 Peel one label at a time and position on the faceplate in the box which matches the input sensor position 3 Before pressing down be sure label is correctly placed 4 Press firmly on the label and leave untouched for several hours ST 94112N page 2 of 4 ELECTRICAL The Figures below show typical customer switch wiring for the ST8 Switch wiring should be run separately from other wires DO NOT route switch wires with AC power wires since voltages that may be induced into the switch wires may exceed rating and cause damage to circuits or cause false trips Figure 1 shows the wiring for a normally open N O SWICH GAGE connected between terminal B and the negative power input A metal jumper is connected between A and B When the SWICH GAGE closes the shutdown alarm circuit will be initiated Figure 2 shows the2. 470248 Tulsa Oklahoma 74147 USA 1 918 317 4100 fax 1 918 317 4266 e mail sales fwmurphy com www fwmurphy com San Luis Potosi L P M xico 78384 52 444 8206264 fax 52 444 8206336 Villahermosa Office 52 993 3162117 e mail ventas murphymex com mx www murphymex com mx Blvd Antonio Rocha Cordero 300 Fracci n del Aguaje MACQUARRIE CORPORATION 1620 Hume Highway Campbellfield Vic 3061 Australia 61 3 9358 5555 fax 61 3 9358 5558 e mail murphy macquarrie com au FRANK W MURPHY LTD Church Rd Laverstock Salisbury SP1 1QZ U K 44 1722 410055 fax 44 1722 410088 e mail sales fwmurphy co uk www fwmurphy co uk MURPHY SWITCH OF CALIFORNIA 41343 12th Street West Palmdale California 93551 1442 USA 661 272 4700 fax 1 661 947 7570 e mail sales murphyswitch com www murphyswitch com USA ISO 9001 2000 FI UK 1SO 9001 2000 FM 29422 M 28221 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 ST 94112N page 4 of 4
3. ST 94112N Installation and Operation Instructions for Section 2 SELECTRONIC TATTLETALE Annunciator Model ST8 MURPHY Please read the following information before installing A visual inspection of this product for damage during shipping is rec ommended 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 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 Certain danger to human safety and to equipment may occur if some equipment is stopped without pre warning It is recommended that monitored functions be limited to alarm only or to alarm before shutdown Specifications All specifications apply to both models unless indicated Description Power Input Operating Voltage 8 32 VAC 8 40 VDC The ST8 is an eight point TATTLETALE panel designed to give first out indication of cause of alarm or shutdown This first out feature means that only the first fault will be shown by LED this feature isolates the primary cause of shutdown and helps simplify troubleshooting The ST8 is available in two different types of mounting flush mounting F and gimbal mounting G Sensor In
4. puts 8 sensor switches normally open or normally closed dry contacts Number of Alarm Points ST8 8 first out shutdown alarm Lockout Time Delay During Startup 25 to 35 seconds selectable for each sensor input ST8 F ST8 G 2 7 8 in 5 11 16 in a 2 3 16 in 144 mm 56 mm gomm 6 3 8 in 162 mm wnn Gimbal Mounting 5 3 8 Bracket 3 8 in o 1 3 4 in j 137 mm 44mm ST 94112N page 1 of 4 MOUNTING Gimbal Mount Model ST8 G TATTLETALE 1 Install the gimbal mounting bracket with three screws cus tomer supplied according to the mounting hole dimensions shown below NOTE Verify the TATTLETALE s rotation clearance see Dimensions page 1 Washers 2 2 Attach the TATTLETALE to the gimbal bracket with the washer and mounting bracket knobs Gimbal Mounting Bracket Hole Dimensions 3 1 2 in 89 mm A oa Tin 25 mm a 1 3 4 in N 44 mm 9 64 in 4 mm diameter 3 places Panel Mount Model ST8 F 1 Cut a hole in the panel according to the mounting hole dimen sions shown below 2 Install the flush mount mounting bracket on the TATTLETALE Panel Mounting Hole Dimensions PEPES 5 5 6 in 5 135 mm m ee A 4 gt 5 3 4 in 5 3 8 in 146 mm 137 mm 1 m9 e 5 32 in 4 11 16 in 4 mm 119 mm g Typical 4 places APPLYING PREPRINTED LABELS Preprinted label are
5. re Flyback Diode Solenoid Valve Distributor Coil KOT Slave Relay Q0 ON OFF 2 Amp Ewen Remove jumper from terminals 12 and 13 and set individual sensor Lockout Switch for a 25 to 35 second lockout time delay during startup see page 4 Setting Lockout Switches Jumper Wire customer supplied ST8 Shutdown Sensor Inputs No Connection No Connection Sensor Lockout Switches ST 94112N page 3 of 4 N lege e ST8 1 Apply power to the ST8 TATTLETALE terminals 13 and 14 2 The POWER ON and RUN LED light will switch On The POWER ON LED indicates power has been applied to the ST8 The RUN LED indicates the internal relay is in the operating mode 3 The lockout time delay during startup will begin timing Sensors with lockout time delay selected see Setting Lockout Switches below will not trip alarm or shutdown circuit until time delay times out 25 35 seconds If lockout switches are not set there will not be a time delay during startup 4 The 8 Red shutdown LEDs are for shutdown indication see Figure 6 5 When a shutdown signal is received from a SWICHGAGE the shutdown LED will light and internal shutdown relay will switch to activate a shutdown device see Typical Wiring page 3 All other shutdown sensor inputs are locked out 6 Shutdown LED will remain on even if conditions retu
6. rn to normal To clear the LED power must be removed or push button reset is operated Setting Lockout Switches Lockout switches allow you to lockout shutdown alarm sensors during startup For instance on a pressure SWICHGAGE the lockout time delay allows time for pressure to build up thus lifting the pointer off the low limit contact If the lockout time delay is not set the TATTLE TALE will initiate the shutdown alarm sequence Each sensor input on the ST8 has a lockout time delay at startup with a length of 25 to 35 seconds Lockout 1 Locate the lockout switches on back aH Switches of the unit see Figure 7 tH A H H H H A H 2 Determine which sensors you wish 12345678 to lock out Switch the corresponding sensor lockout switch ON A SEN SOR CAN BE LOCKED OUT ONLY WHEN ITS LOCKOUT SWITCH IS SWITCHED ON 3 Remove the jumper between terminals 12 and 13 This will activate the time delay If this jumper is not removed the lockout time delay will not function On back of unit Figure 7 Warranty A limited warranty on materials and workmanship is given with this FW Murphy product A copy of the warranty may be viewed or printed by going to www fwmurphy com support warranty htm CONTROL SYSTEMS amp SERVICES DIVISION P 0 Box 1819 Rosenberg Texas 77471 USA 281 633 4500 fax 1 281 633 4588 e mail sales fwmurphy com MURPHY DE MEXICO S A DE C V MURPHY gt FW Murphy P O Box
7. wiring for a normally closed N C switch connected to input terminals A and B The factory installed A A B B Figure 1 Typical N O Sensor Connection Figure 2 Typical N C Sensor Connection metal link must be removed to use this wiring When the switch opens the shutdown alarm will be initiated Figure 3 shows the wiring for a N O SWICHGAGE which is the same as Figure 1 except two wires are run from terminals A and B to the SWICHGAGE This Closed Loop wiring circuit monitors the wires as well as the switch If the circuit is opened due to a loose connection or broken wire or the SWICHGAGE closes the shut down alarm circuit will be initiated Figure 4 shows the ST8 internal SPDT relay in the run or operat ing mode 9 10 11 NO NG C poe FD Figure 3 Typical N O Closed Loop Sensor Connection Figure 4 Internal Relay Circuit Typical Wiring Below is a typical wiring diagram for the ST8 TATTLETALE Start Flyback Pushbutton ol Diode To Hold Coil To Battery Starter Motor To Pull in Coil Flyback Diode Push Pull Solenoid NOTE Connect only one shutdown device to the ST8 Wiring for Push Pull Solenoid Solenoid Valve and Slave Relay shown for clarity only Engine Oil Internal Rela Pressure y shown in run mode ST8 Shutdown Sensor Inputs Engine Water Temperature No Connection 4 No Connection Differential Pressu
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