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1. Plug amp ETS ae P s p Ft PRE HEAT FT 8 RELAY 9 10 T 20 LE 71 Ple lt 19 LL N sr 18 J a CRANK 17 L I CRANK 4 S RELAY 5 LI H A f atc J 14 3 PIN1 43l D t T2 PROGRAMMING c 5 FUEL CONNECTOR map H 1 415 RELAY 11 ILL MODE SWITCH I d 4 AMP FUSE REMOTE START CONTACTS BATTERY Operating amp Installation Manual for the GSC300 Engine Controller GENERAL FAILURE LAMP NOT IN AUTO LAMP ENGINE RUN LAMP LOW BATT LAMP LOW OIL LAMP HIGH TEMP LAMP OVERSPEED LAMP OVERCRANK LAMP PRE HEAT NO PRE HEAT COM BATTERY GROUND BATTERY GROUND STARTER OUTPUT BATTERY BATTERY FUEL OUTPUT Back Panel Layout EE PRE HEAT FT RELAY 9 10 SPEED SIGNAL LLL INPUTS TI LL L CRANK RELAY l PROGRAMMING I T FUEL CONNECTOR RELAY ON OFF MODE SWITCH a g 12 22 AUX SWITCH INPUT 21 TEMP SWITCH INPUT 20 OIL SWITCH INPUT 19 REMOTE START INPUT 18 GENERAL FAIL OUTPU2. TECHNOLOGIES INC DynaGen GSC300 Auto Start Engine Controller Installation and User Manual for the GSC300 Auto Start Engine Controller Full Version File GSC300 R2 6doc November 2006 LIMITED WARRANTY POLICY DynaGen Technologies Inc hereafter known as the Seller warrants articles sold hereunder to be free from defects in material and workmanship These express warranties are the sole warranties of the Seller and any other warranties expressed implied in law or implied in fact are hereby specifically excluded The Seller s sole obligation under its warranty shall be at its option to either issue a credit or repair or replace any article or part thereof which is proved to be defective Any adjustment of credits will be based upon original billing prices All warranties shall expire 5 years from date of shipment by the Seller unless otherwise specified in other written communications from the Seller Any replacement product provided to the Buyer shall be subject to the original warranty period which will expire 5 years from the date of shipment of the original article Notice of claimed breach of warranty must be given within the applicable period No allowances shall be made to the Buyer for any transportation duties brokerage fees labor costs or parts adjustments or repairs or any other work unless said charges are authorized in writing in advance by the Seller The Seller shall in no event be liable for special or cons
3. B x Battery Voltage MDC 0 3 Set Port Address Store GSC Data Oil Bypass Time sec 10 Warmup Time sec Enable Extra Relay E Es Save to Disk Load From Disk Change Messaging Preheat Exit NILIM TE E Meca 6055652 E Fuel During Crank Rest On Off Operating amp Installation Manual for the GSC300 Engine Controller TROUBLESHOOTING GUIDELINES TROUBLE POSSIBLE CAUSE SUGGESTED ACTION Unit does not operate when powered to test mode Engine starts and immediately goes into Overspeed shutdown Engine does not crank Engine cranks but does not start Engine starts but shuts down after Oil Bypass period due to low oil high temp Aux input Flashing Overspeed LED Steady Oil LED immediately on start up without engine actually cranking or starting Display Parameter for Temperature Oil or Fuel displayed as gt gt gt or lt lt lt Warm Up Feature appears longer then time setting Improper Overspeed setting Out of fuel Ignition control wiring not installed properly Fuel relay and or fuse damaged Oil Temp Auxiliary input wiring improperly connected Incorrect programming of sensor inputs Speed signal improperly connected missing or damaged Crank output damaged not working or fuse blown on starter output Starter or starter solenoid damaged False speed signal being detected by controller This problem can sometim
4. be accepted back for credit or exchange A restocking charge of 15 will apply Unused custom designed products will not be accepted back for credit or exchange For questions or comments regarding this product contact DynaGen Technologies Inc Phone 902 562 0133 Fax 902 567 0633 Email sales dynagen ca WEB SITE www dynagen ca Operating amp Installation Manual for the GSC300 Engine Controller SPECIFICATIONS FOR THE GSC300 Operating Voltage 7 to 30VDC continuous Zero volts operation for 100mS assumes supply was 12VDC before initiating starting Operating Temperature 40 C to 85 C LCD Display operates from to 16 C to 70 C Physical Dimensions 4 5 H x 5 5 W x 1 25 D Actual Unit Weight 0 458 lbs Enclosure High Impact Resistant Injection Molded Plastic Enclosure Front Panel Indications High intensity LED s with regulated brightness LCD Display Ultra bright Backlight LCD display with optimum viewing angle of 0 to 25 from perpendicular Display Size mm 8 W x 32 H x 12 8 D x 2line x 8 character display Adjustments Warm up 0 200 Seconds After Oil Bypass Feature Cool Down 0 812 Seconds Crank Disconnect 12 to 140Hz Overspeed 40 200Hz Crank Rest 4 32 Seconds Delay on Start 0 59 Seconds Crank Tries to 10 Oil Bypass 10 55 Seconds Low Battery Indication 7 35VDC Operating amp Installation Manual for the GSC300 Engine Controller Time
5. Oil Bypass and or Warm Up timing Operating amp Installation Manual for the GSC300 Engine Controller 21 TECHNICAL NOTES ON FREQUENTLY ASKED QUESTIONS 1 Controller Memory Clear Time The GSC300 needs 10 seconds for its memory to clear When the power to the controller is turned off and then back on again without waiting 10 seconds to clear the memory a loss of speed will may be indicated by the GSC300 if controller is in AUTO mode and start signal is activated because the controller remains in run mode and senses that the generator has stopped This would be indicated by a Flashing Overspeed LED By leaving the GSC300 main power OFF for 10 seconds before main power is re applied this allows the clearing the memory and it will function as intended 2 Step Down Transformer Use On Speed Sensing Cable With Inverter Systems In some applications engine controllers are used on generators where there is no utility connection and inverters are used to provide AC power instead of a utility Inverters can produce harmonics that can cause small AC signals to appear on wires that are near any power lines being fed by the inverter If the generator output wires are located close to a line being powered by an inverter a small AC signal can appear on the generator output lines when the inverter is on This signal can cause the engine controller to react as if the generator is running if the speed sensing wires are connected to the generator output
6. edge of the controller to the program position See Diagram on Pg 12 This Mode Switch can be set using a ballpoint pen or small tool to allow the controller to be put into Program Mode The first three LED s 3 2 amp 1 correspond to which Parameter is being adjusted and the next three 6 5 amp 4 LED s show the Value for that particular Parameter LED 1 Low oil pressure LED 2 High water temp LED 3 Overcrank LED 4 Overspeed LED 5 Engine Running LED 6 Low engine battery LED7 Preheat ETS LED8 NOT IN AUTO starting disabled The picture on the next page shows the LED numbering and the location of the Mode Switch The highlighted circle in the table refers to the LED being illuminated v LED s6 5 amp 4 v Parameter LED s 293 Crank Tries e se EN CNN Rest Time e ps s spo 25 2 a e s s ss a 2s 36 a To scroll through the parameters simply press the Auto button on the front panel of the GSC300 To scroll through the range of values for that parameter simply press the Manual Start button To program the value into the controller s memory press the OFF button In this manner the settings of the controller can be adjusted by simply using the three buttons on the front panel of the controller Be sure to press the OFF button when you have selected the parameter value wanted Preheat Time Operating amp Installation Manual for the GSC300 Engine Controller 18 Numbering
7. point must be selected from the programming menu Note The engine temperature failure is disabled during the Oil Bypass time 6 FUEL LEVEL AUXILIARY INPUT The Fuel level Aux input can be wired to a resistive sender or from a NO type switch For proper operation while using a switch the switch must be the NO type which closes to ground upon failure If this input is used as a sender no failure will be indicated The sender option is solely for Fuel Level Auxiliary Level Display on the LCD 7 SPEED SIGNAL SENSITIVITY The controller will accept to a maximum of 300VAC 60Hz from direct generator output for speed sensing The following values are minimal recommended voltages for speed signal sensing 20Hz 075V 75mV 60HZ 6V 600mV 8 HOUR METER The controller displays a log of total accumulated generator running hours Generator Run times will be displayed on the controllers display screen The display represents both hours and minutes in the form 123456 7 The last digit on the hour meter will represent the time in 1 10 of an hour Please note that although the hour meter displays time in hours and minutes it will record up to the nearest second If the generator was operated for a 3 minute period and then stopped the running time is stored in permanent memory and then adding to the next running period The same would be true if the controller were to enter a failure mode as the controller would permanently store the remaining time for
8. the next running cycle Operating amp Installation Manual for the GSC300 Engine Controller 15 LED LAYOUT Front View of GSC300 LOW OIL PRESSURE HIGH WATER TEMP OVERCRANK OVERSPEED OIL TEMP BATTERY ENGINE RUNNING LOW ENGINE BATTERY PREHEAT ETS NOT IN AUTO STARTING DISABLED Operating amp Installation Manual for the GSC300 Engine Controller LED INDICATIONS FRONT PANEL LED INDICATIONS LED Appearance Condition Failure is disabled terminal Steady Low Oil LED Low Oil Pressure Failure Flashing Low Oil LED Auxiliary Input Failure Steady High Temperature LED Over Temperature Failure Steady Overcrank LED Engine generator failed to start after the specified number of cranking attempts Steady Overspeed LED Speed Signal present above Overspeed setting Flashing Overspeed LED The speed signal was Zero while running The engine has stalled overload or lack of fuel or the speed signal has been lost Steady Engine Running LED Engine Controller is in running mode of operation Flashing Engine Running LED Crank Rest period Cranking will resume soon Operating amp Installation Manual for the GSC300 Engine Controller 16 17 Programming The GSC300 Settings Using the Front Panel Interface The following table shows the LED s that correspond to the various settings of the various parameters To enter the controller into Program Mode you need to turn the small switch at the bottom
9. 24VDC SYSTEM OPERATION PRE HEAT s PRE HEAT RELAY RELAY 12VDC 24VDC RELAYS RELAYS N WO A O N DW 12VDC RELAYS MUST 24VDC RELAYS MUST BE INSTALLED FOR 12VDC BE INSTALLED FOR 24VDC SYSTEM OPERATION SYSTEM OPERATION The GSC300 controller is designed to operate in either 12 or 24VDC system voltages When operating in 12VDC systems the Fuel Crank and Preheat ETS relays need to be the 12VDC relay type When operating in 24VDC systems these relays need to be the 24VDC relay type Contact the factory if relays are required Approved relays for 12 or 24VDC system operation are as follows AZETTLER AZ973 1C 12DC for 12VDC operation e AZETTLER AZ973 1C 24DC for 24VDC operation Operating amp Installation Manual for the GSC300 Engine Controller 10 TERMINAL DESCRIPTION Fuel Output provides 40A maximum Fuel Output closes to 12 24VDC when start signal is received and opens when either an engine failure occurs or when Cool Down period has ended Auto Terminals Main Batter
10. A max General Failure Output closes to 12 24VDC on a General Failure 300mA max Start Stop Input Apply 12 24VDC to this terminal while unit is in Auto Mode to start engine Remove 112 24 VDC to stop engine or enter Cool Down mode Low Oil Pressure sensor input This sensor can be the resistive type Sender or can be the switch type The proper type of sensor must be selected during GSC300 controller programming The sender or switch must be connected to ground for proper operation If Battery is connected to input terminal this can result in damaged to GSC300 controller When using a sender the proper sender manufacturer must be selected as each sender manufacturer s characteristics are different the sender failure set point must also be selected When using a switch NO or NC much be selected from the programming menu NO refers to the state of the contacts during normal engine operation therefore NO refers to normally open at normal engine run and close to ground on low oil pressure failure High Engine Temperature sensor input This sensor can be the resistive type Sender or can be the switch type The proper type of sensor must be selected during GSC300 controller programming The sender or switch must be connected to ground for proper operation If Battery is connected to input terminal this can result in damaged to GSC300 controller When using a sender the proper sender manufacturer must be selected as each sender manufacturer s character
11. LCD display will read OFF and the backlight on the LCD display will be off NOTE Battery must be permanently connected to the main power terminal for the NOT IN AUTO feature 3 LOW BATTERY VOLTAGE ALARM When the battery voltage drops below the user defined set point which can be programmed between 7 and 35VDC the engine controller displays a Low Battery Condition The Low battery warning Led will be illuminated at any time during OFF AUTO and Manual run modes The LCD display will indicate the message LOW BATT The LOW battery warning will be disabled during failure conditions 4 LOW OIL INPUT The Low Oil Input can be wired to a resistive sender or from a NO or NC type switch NO NC refers to the state of the contacts during normal engine operation engine oil pressure ok When utilizing a resistive sender the display units are fixed in PSI by the PC programming interface and a failure set point must be selected from the programming menu Note The oil input failure is disabled during the Oil Bypass time Operating amp Installation Manual for the GSC300 Engine Controller 14 5 HIGH TEMPERATURE INPUT The high temperature input can be wired to a resistive sender or from a NO type switch For proper operation while using a switch the switch must be the NO type which closes to ground upon failure When utilizing a resistive sender the display units are fixed in Fahrenheit by the PC programming interface and a failure set
12. Of LED s and Location of Mode Switch OIL TEMP S Mode Svntch Programming Using the PC Interface ted LED 1 LOW OIL PRESSURE HIGH WATER TEMP LED amp 2 OVERCRANK l Pampa OVERSPEED LED 4 ENGINE RUNNING LED 5 LOW ENGINE BATTERY 52 LED 5 PREHEAT ETS NOT IN AUTO STARTING DISABLED The GSC300 can also be programmed using the PC interface Detailed instructions on the PC interface are included with the GSC300 Configurator software A sample interface screen is illustrated on the following page Operating amp Installation Manual for the GSC300 Engine Controller 19 Sample Screen From PC Interface NOTE Factory default settings are outlined in the photo below GSC300 Configurator File About Help User Settings GSC CONTROL Crank Disconnect Hz lt Temp Setpoint degF Delay To Start sec 5 Crank Time sec 10 Rest Time sec B El Restart On False Start Enable Disable Switch Sender OIL Sensor Type Delay s Switch Sender esr uim Setpoint TEMPERATURE Sensor Type FUEL Delay s n g Switch Sender Delay s Switch Sender Overspeed Hz 63 Disable Oil Setpoint psi Preheat Time sec 10 Cooldown Time sec 6 4 Speed Sensing Geno p Midheat Postheat C Enable Disable CONTROL Read GSC Data Crank Tries
13. T 17 NOT IN AUTO OUTPUT 16 ENGINE RUN OUTPUT 15 LOW BATTERY OUTPUT 14 LOW OIL OUTPUT 13 HIGH TEMP OUTPUT 12 OVER SPEED OUTPUT 11 OVER CRANK OUTPUT Operating amp Installation Manual for the GSC300 Engine Controller 13 CONTROLLER OVERVIEW General Failure Conditions Not In Auto Low Battery Voltage Alarm Oil Pressure Input Coolant Temperature Input Fuel Level Auxiliary Input Speed Signal Sensing Adjustable Input Programming Qo Oy VC deu poo ex 1 GENERAL FAILURE CONDITIONS The following conditions can cause the GSC300 controller to shutdown the engine generator system unexpectedly Auxiliary Failure XTR FAIL Extra failure is indicated by a flashing RED Low oil pressure LED Low Oil Pressure Low Oil pressure is indicated by a steady on RED Low oil pressure LED High Coolant Temperature High coolant temperature is indicated by a steady on RED High water temp LED Overcrank Overcrank failure is indicated by a steady on RED Overcrank LED Overspeed Overspeed failure is indicated by a steady on RED Overspeed LED Loss of Speed SPDLOSS Loss of speed signal is indicated by a flashing RED Overspeed LED The General Failure output annunciation is triggered during any of the above failure conditions and is rated 300mA Max 2 NOT IN AUTO When the controller is in the OFF Mode the NOT IN AUTO LED will illuminate and the NOT IN AUTO Output will be triggered During this OFF mode Automatic engine starting is disabled The
14. equential damages or for loss of profit The warranty shall not extend to any articles or parts thereof which have been installed used or serviced other than in conformity with the Seller s application specifications manuals bulletins or instructions or if none shall have been subjected to improper installation misuse or neglect The warranties shall not apply to any materials or parts thereof furnished by the Buyer or acquired from others at the Buyer s request and or to the Buyer s specifications or designs The foregoing limitations on the Seller s liability in the event of breach of warranty shall also be the absolute limit of the Seller s liability in the event of the Seller s negligence in manufacture installation service or otherwise with regard to the articles covered hereby and upon the expiration of the stated warranty period all such liabilities shall terminate RETURNS If any article is claimed to be defective in material or workmanship the Seller upon notice promptly given will issue a written return material authorization RMA with shipping instructions for return to the Seller All returns must be accompanied by an RMA number or shipments will not be accepted by the Seller Articles which are returned as defective but are found to meet the specifications agreed upon will be subject to a re testing charge At the discretion of the Seller unused and undamaged Standard Products may under certain circumstances
15. es occur in installations where there is AC power from inverters near generator output lines connected to the speed signal cable Parameter is gt gt gt ABOVE or lt lt lt BELOW specified manufacturer sender range Warm Up Feature time setting does not begin until the Oil Bypass Time has expired and re attempt testing controller unit ground terminal 110n controller unit Verify the Overspeed setting with PC configuration software Confirm that engine s governor is properly calibrated for its intended use connected check crank connections controller ground terminal 5 amp 6 on controller unit blown Check wiring in line fuse and slave relay Replace fuse relay and re test controller check ignition connections damaged or blown Check wiring for proper connections Check programming of oil pressure engine temperature and aux input Ensure that the sensor type is properly programmed to controller unit Sender Switch type Check speed signal wiring replace damaged speed signal source Check wiring and replace relay of fuse where necessary Replace repair damaged starter or starter solenoid Install a small step down transformer between the speed sensing wires and the generator output If the neutral from the generator output is not grounded attach it to ground If further accuracy is required it may be necessary to install sender with proper range specifications Re adjust
16. gine Controller WIRING INSTALLATION GUIDELINES Danger Never work on the engine while its power is on This controller does not generate a warning signal prior to automatic engine start Warning signs should be placed on engine equipment indicating this important safety measure INSTRUCTIONS Following these instructions will help avoid common installation problems during wiring and setup e Battery must be disconnected before any wiring connections are made e Wire length from the engine to the controller should not exceed 6 meters 20 feet Wiring size and type should be as specified below Use stranded wire since solid wire has a tendency to crack break and loosen over time TYPES AND SIZES Terminal Wire Size Current max Function AWG 1 12 40A Fuel Output Terminal 2 12 40A Auto Battery Terminal Connection 3 12 40A Auto Battery Terminal Connection 4 12 40A Crank Output Terminal 5 12 40A Ground Terminal Connection 6 12 40A Ground Terminal Connection 7 12 40A Preheat ETS Terminal 8 12 40A Preheat ETS Terminal 9 18 100mA Speed Signal Connection 10 18 100mA Speed Signal Connection 11 18 300mA Overcrank failure to start Output 12 18 300mA Overspeed Output 13 18 300mA High Temp Output 14 18 300mA Low Oil Output 15 18 300mA Low Battery Output 16 18 300mA Engine Run Output 17 18 100mA Not in Auto Output 18 18 300mA General Failure Output 19 18 7mA Star
17. istics are different the sender failure set point must also be selected When using a switch the switch must be the NO type on normal engine run and close to ground on failure Fuel Level sensor or Auxiliary failure input This sensor can be the resistive type Sender or can be the switch type The proper type of sensor must be selected during GSC300 controller programming The RES s T 15 Low Battery Output closes to 12 24VDC on Low Battery Condition 300mA max ae sies T amp 1 1 3 4 6 8 10 11 12 13 14 15 16 17 18 19 20 21 22 sender or switch must be connected to ground for proper operation If Battery is connected to input terminal this can result in damaged to GSC300 controller When using a sender the proper sender manufacturer must be selected as each sender manufacturer s characteristics are different When using a switch the switch must be the NO type on normal engine run and close to ground on failure Operating amp Installation Manual for the GSC300 Engine Controller Wiring Connection Diagram Wiring Connections for the GSC30 FUEL AUXILLIARY SENDER SWITCH 0 GENERATOR OUTPUT TEMPERATURE SENDER SWITCH UP TO 300VAC Glow hi 11 OIL PRESSURE SENDER SWITCH
18. lines This small AC signal can cause the controller to appear to have a Low Oil Failure when the remote start contacts are closed or the controller is put in the manual test mode The controller may think the generator is already running and immediately check to make sure there is oil pressure Since the engine really hasn t started yet there is no oil pressure and the controller sees a low oil fault This is seen as the Oil LED turning on steady even before the engine starts to engage the starter Without this false speed signal the controller will not look for oil pressure until the engine has started to run and the crank disengages if oil verification is disabled Simply installing a small transformer between the generator output and the speed sensing terminals on the controller can eliminate this false speed signal This transformer should be rated for 120 or 240 volts on the input or primary coil depending on the generator output voltage you are using for speed sensing and have an output voltage of around 12VAC on the secondary of the transformer The two wires from the secondary of the transformer are connected to the two wires of the speed sensing terminals on the GSC300 controller The step down transformer acts to reduce the false speed signal on the line to a level that the engine controller will not recognize as the engine running A common size transformer that would serve this purpose would be 24VA Step Down Transformer Connections
19. minal block for annunciation outputs and low power connections 0 25 spade terminals for high current and Main power inputs Programming Windows based software interface utilizing the parallel port of your PC Option of programming through 3 button interface limited parameter adjustment on the front panel or the PC Interface that has full parameter programming ability Needs no power to program using the PC Interface uses power from parallel port of PC Specifications May Change Without Notification Operating amp Installation Manual for the GSC300 Engine Controller GSC300 Product Number Identification The GSC300 series catalog order number provides information pertaining to a specific model The Product Number Identification Table see Table 1 provides details on the breakdown of the model number TABLE1 IDENTIFICATION TABLE Position 1 6 Position 8 Position 10 11 Position 13 14 Series Speed Range DC Voltage Labeling GSC300 GSC3 L Low 12 12VDC LS Standard 00 H High consult 24 24VDC LX Customized factory Example The product number GSC300 L 12 LS would be described as follows A GSC300 series automatic engine controller configured for a 12 VDC system The controller is factory configured for low speed range generator speed range which includes standard labeling A GSC300 serial number would be displayed as GSC300 L 12 LS 00000 Operating amp Installation Manual for the GSC300 En
20. on Speed Sensing Cable Step Down Transformer 9 12VAC Secondary Winding Hany To Generator Output Winding Line to Neutral 120VAC Twisted pair of wires connected to speed sensing terminals on GSC300 I I 10 Operating amp Installation Manual for the GSC300 Engine Controller Notes Operating amp Installation Manual for the GSC300 Engine Controller 22
21. r adjustments Glow Plug Preheat Energize To Stop ETS Inputs Speed Sensing Generator Output Speed Sensing Maximum Input Voltage Minimum Input Voltage 60Hz Rejection Filter Included Loss of Speed Signal Included Sender Failure Inputs Oil Pressure Coolant Temperature Fuel Level Auxiliary Input 0 255 Seconds Energizes for 15 Seconds on failures or energizes until 5 Seconds after engine speed goes to zero upon removing power from Start Stop terminal or removing the unit from manual mode using the front panel buttons 300VAC RMS 0 7VAC RMS Generator Output Sensing Accepts standard industry low impedance 0 500 ohm sender inputs VDO Stewart Warner Datcon Murphy etc Custom senders can be accommodated for in PC programming Programmable for either switch or sender configuration Adjustable failure set points Operating amp Installation Manual for the GSC300 Engine Controller Protection Three on board replaceable 40A fuses protect Fuel Crank and Timer Outputs Reverse polarity protected Short circuit amp overload protection on annunciation outputs Inputs are electrostatic discharge protected Maximum power supply surge before damage 1500V for 250us Outputs All outputs switched to battery sourcing Fuel Crank and Timer Outputs 40A each using standard 40A automotive relays Annunciation Outputs 300mA individually 350mA combined Connections Removable ter
22. sender type Failure to do so may result in the controller not shutting down on true engine failure Low oil pressure or high engine temperature When installing engine sensors oil pressure engine temperature fuel level ensure the switches are connected to ground circuit through the engine sensor Damage will occur to controller unit if the sensor input terminals Terminal s 20 21 and 22 are connected to 4 Battery When using engine sensors that are the resistive type the proper manufacturer of the sender MUST be selected during programming Failure to select the correct manufacturer type will cause inaccurate readings as well as failure to protect the engine during a fault condition To verify the operation of engine controller outputs measure voltage i e meter in volts when outputs should be ON To verify the operation of the Preheat Output measure the resistance between the Preheat terminals when the Preheat Output is ON it should read a closed circuit i e zero ohms When the output is OFF there should be an open circuit between the terminals very high resistance Speed sensing input terminals Terminal s 9 and 10 do not have polarity sensitivity therefore the AC generator output leads can be connected in any polarity configuration to the controller speed sensing terminals Do not exceed 300VAC on speed sensing input terminals Operating amp Installation Manual for the GSC300 Engine Controller GSC300 12
23. t Stop Input 20 18 7mA Oil Pressure Sender Switch Input 21 18 7mA Temperature Sender Switch Input 22 18 7mA Fuel Level Auxiliary Sender Switch Input Operating amp Installation Manual for the GSC300 Engine Controller 10 WIRING GUIDELINES DONOT use wire smaller than 18 AWG as smaller wire has a tendency to crack and break over time IMPORTANT The connections supplying DC power to the GSC300 panel should preferably run directly from the battery posts with no splices or other connections Avoid using chassis aluminum or iron engine parts as return conductor for battery negative voltage Copper wiring is recommended Failure to follow the above may result in erratic operation due to large voltage drops across wiring connections A small fuse should be placed at the battery terminal to provide 12 volts to the Remote Start Contacts to ensure that a short along this line will not cause any damage DO NOT exceed the maximum rated current and voltage on each of the controller outputs DO NOT exceed 40A each for the Fuel Output Crank Output or Preheat Output DO NOT exceed 300mA individually or 350mA combined for the General Fault Output or Annunciation Outputs 40Amp relays are rated for resistive ratings When driving such loads as starter solenoids you must ensure proper de rating of the relays Consult factory for further details Engine Sensor type MUST be selected and programmed properly to GSC300 switch or
24. y power connection to controller These terminals are internally connected together on GSC300 controller Crank Output provides 40A maximum Crank Output closes to 12 24VDC during cranking and opens when the engine has started or during Crank Rest Main Battery Ground connection for the controller module A good ground connection directly from the battery is required for proper operation These terminals are internally connected together on GSC300 controller Preheat ETS Output provides a set of dry contacts between terminals 7 and 8 When this output is energized terminals 7 and 8 are connected together When output is OFF terminals 7 and 8 have no connection Speed 1 Speed Signal Input for Crank Disconnect Engine Run and Overspeed sensing 300VAC max input voltage Speed sensing input terminals T 9 10 do not have polarity sensitivity therefore the AC generator output leads can be connected in any polarity configuration Do not exceed 300VAC on speed sensing input terminals Overcrank Annunciation Output closes to 12 24VDC on Overcrank Failure 300mA max Overspeed Annunciation Output closes to 12 24VDC on Overspeed Failure 300mA max 2 5 7 9 High Temp Output closes to 12 24VDC upon High Temp Failure 300mA max Low Oil Output closes to 12 24VDC upon Low Oil Failure 300mA max Engine Run Output closes to 12 24VDC on Engine Run Condition 300mA max Not In Auto Output closes to 12 24VDC when unit is not in auto 300m
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