Shop manual máy đào HuynDai R250: An toan, cấu trúc, sơ đồ điện, thủy lực,
5-25GROUP 12 MONITORING SYSTEM1. OUTLINEMonitoring system consists of the monitor part and switch part.The monitor part gives warnings when any abnormality occurs in the machine and informs thecondition of the machine.Various select switches are built into the monitor panel, which act as the control portion of the machinecontrol system.2. CLUSTER MONITOR PANEL1) Engine oil pressure warning lampHyd oil temp warning lampAir cleaner warning lampBattery charging warning lampOverload warning lampFuel low level warning lampMonitoring displayCPU controller check warning lampPower max pilot lampCold start aid pilot lampWarming up pilot lampDecel pilot lampCoolant level warning lampOverheat warning lampFuel gaugeHyd oil temp gaugeEngine coolant temp gaugeAuto deceleration switchPower mode switchTravel speed switchSelect switchWork mode switchUser mode switchBuzzer stop switch25075MS05 5-26CLUSTER CHECK PROCEDUREStart key : ONCheck monitor initial 5 secondsAll lamps light up. Buzzer sound.Check monitor after 5 seconds : Indicate cluster version and machine conditionCluster program version : CL : 1.4 Indicates program version 1.4 for 2 seconds.Tachometer : 0rpmFuel gauge : All light up below appropriate levelHydraulic temperature : All light up below appropriate levelEngine coolant temperature gauge : All light up below appropriate levelWarning lampDuring start key ON the engine oil pressure lamp and battery charging lamp go on, but it is notabnormal.When engine coolant temperature below 30°C, the warming up lamp lights up.Indicating lamp stateWork mode selection : General workPower mode selection : S modeUser mode selection : No LED ONAuto decel LED : ONTravel speed pilot lamp : Low(Turttle)Start of engineCheck machine conditionTachometer indicates at present rpmGauge and warning lamp : Indicate at present condition.When normal condition : All warning lamp OFFWork mode selection : General workPower mode selection : S modeUser mode selection : No LED ONAuto decel LED : ONTravel speed pilot lamp : Low(Turttle)When warming up operationWarming up lamp : ON10 seconds after engine started, engine speed increases to1200rpm(Auto decel LED : ON)Others same as above ①.When abnormal conditionThe lamp lights up and the buzzer sounds.If BUZZER STOP switch is pressed, buzzer sound is canceled but the lamp light up until normalcondition. 2) (1)①②a.b.a.b.c.d.e.f.※※(2)③①②③a.b.※c.d.e.f.g.a.b.※a.b.a.b.c.d.e. 5-273. CLUSTER CONNECTORNo. SignalClusterInput / Output1 2 3 4 Power IG(24V)GNDSerial-(RX)Serial+(TX)Input(20~32V)Input(0V)Input(Vpp=12V)Output(Vpp=4V)21075MS16 5-28This displays the current time and machine information such asengine rpm, coolant/hydraulic oil temperature, hydraulic oilpressure and also error codes.Refer to the page 5-34 for details.(1)※This gauge indicates the amount of fuel in the fuel tank.Fill the fuel when the white range or warning lamp blinks.If the gauge illuminates the white range or warning lampblinks even though the machine is on the normal condition,check the electric device as that can be caused by thepoor connection of electricity or sensor.White rangeFUEL GAUGEThis indicates the temperature of coolant.・White range : Below 30°C(86°F) ・Green range : 30-105 °C(86-221°F)・Red range : Over 105°C(221°F)The green range illuminates when operating.Keep idling engine at low speed until the green rangeilluminates, before operation of machine.When the red range illuminates, reduce the load on the system.If the gauge stays in the red range, stop the machine andcheck the cause of the problem.Red rangeHYDRAULIC OIL TEMPERATURE GAUGERed rangeEngine coolant temperature gauge(1)(2)※(1)(2)(3)(4)This indicates the temperature of coolant.・White range : Below 30°C(86°F) ・Green range : 30-105 °C(86-221°F)・Red range : Over 105°C(221°F)The green range illuminates when operating.Keep idling engine at low speed until the green rangeilluminates, before operation of machine.When the red range illuminates, turn OFF the engine, checkthe radiator and engine.(1)(2)(3)(4)21073CD0421073CD0521073CD052)3)4)4. CLUSTER FUNCTIONMONITORING DISPLAY1)14073CD03 5-29This lamp blinks and the buzzer sounds when the level of fuelis below 32ℓ(8.5U.S. gal).Fill the fuel immediately when the lamp blinks.FUEL LOW LEVEL WARNING LAMP(1)(2)5)This lamp blinks and the buzzer sounds when the temperatureof coolant is over the normal temperature 110°C( 230°F) .Check the cooling system when the lamp blinks.HYDRAULIC OIL TEMPERATURE WARNING LAMP(1)(2)6)This warning lamp blinks and the buzzer sounds when thetemperature of hydraulic oil is over 105°C(221°F).Check the hydraulic oil level when the lamp blinks.Check for debris between oil cooler and radiator.OVERHEAT WARNING LAMP(1)(2)(3)7)This lamp blinks and the buzzer sounds after starting theengine because of pressure.If the lamp blinks during engine operation, shut OFF engineimmediately. Check oil level.ENGINE OIL PRESSURE WARNING LAMP(1)(2)8)This lamp is operated by the vacuum caused inside when thefilter of air cleaner is clogged which supply air to the engine.Check the filter and clean or replace it when the lamp blinks.AIR CLEANER WARNING LAMP(1)(2)9)21073CD04A21073CD05A21073CD06A21073CD0721073CD08 5-30This lamp blinks and the buzzer sounds when the coolant isbelow LOW in the reservoir tank of radiator.Check the reservoir tank when the lamp blinks.COOLANT LEVEL WARNING LAMP(1)(2)10)Communication problem with CPU controller makes the lampblinks and the buzzer sounds.Check if any fuse for CPU burnt off.If not check the communication line between them.(1)(2)(3)CPU CONTROLLER CHECK WARNING LAMP11)This lamp blinks and the buzzer sounds when the startingswitch is ON, it is turned OFF after starting the engine.Check the battery charging circuit when this lamp blinks, duringengine operation.BATTERY CHARGING WARNING LAMP(1)(2)12)When the machine is overload, the overload warning lampblinks during the overload switch ON.(1)OVERLOAD WARNING LAMP13)21073CD0921073CD1021073CD1321073CD15The lamp will be ON when pushing power max switch on theLH RCV lever.(1)POWER MAX PILOT LAMP14)21073CD11 5-31Operating auto decel or one touch decel makes the lamp ON.The lamp will be ON when pushing one touch decel switch onthe LH RCV lever.(1)(2)DECEL PILOT LAMP15)This lamp is turned ON when the coolant temperature is below30°C(86 °F).The automatic warming up is cancelled when the enginecoolant temperature is above 30 °C, or when 10 minutes havepassed since starting.WARMING UP PILOT LAMP(1)(2)16)Turning the start key switch ON position starts preheating incold weather.Start the engine as this lamp is OFF.PREHEAT PILOT LAMP(1)(2)17)This switch is to select the machine operation mode, whichshifts from general operation mode to heavy operation modeand breaker mode in a raw by pressing the switch.・: Heavy duty work mode(Fast boom operation)・: General work mode(Fast swing operation)・: Breaker operation modeRefer to the page 5-4 for details.WORK MODE SWITCH(1)※18)21073CD1721073CD1821073CD1221073CD20 5-32This switch is used to actuate the auto deceleration function sothe engine speed is lowered automatically when all controllevers and pedals are at neutral position to save the fuel.・Light ON : Auto deceleration function is selected.・Light OFF : ①Auto deceleration function is cancelled so thatthe engine speed increased to previoussetting value.②One touch decel function is available.Operating the auto deceleration function makes the decelindicate lamp on the LCD panel ON.AUTO DECELERATION SWITCH(1)(2)20)The lamp of selected mode is turned ON by pressing theswitch( ), when selecting the mode to use.・H : This is used for high power work.・S : This is used for standard power work.POWER MODE SWITCH(1)21)This switch is to control the travel speed which is changed tohigh speed(Rabbit mark) by pressing the switch and lowspeed(Turtle mark) by pressing again.TRAVEL SPEED CONTROL SWITCH(1)22)When the starting switch is turned ON first, normally the alarmbuzzer sounds for 2 seconds during lamp check operation.The red lamp lights ON and the buzzer sounds when themachine has a problem.In this case, press this switch and buzzer stops, but the redlamp lights until the problem is cleared.BUZZER STOP SWITCH(1)(2)23)USER MODE SWITCH19)This switch is to select the memory sets, at which you canchange the engine and pump power and memorize it into MIand MII mode for your preference.Refer to the page 5-5 for details.(1)※21073CD2121073CD2221073CD2321073CD2421073CD25 5-33This switch is used to select the monitor display function.Refer to the page 5-36 for details.If the switch is pressed for 3 seconds in time display mode, it isselected time adjusting function, as below.・Hour by auto decel( )switch・Minute by buzzer stop( ) switch.After time set, the switch is pressed, it is returned clock.SELECT SWITCH(1)※※(2)(3)24)21073CD25A 5-345. MONITORING DISPLAYOUTLINEInformation of machine performance as monitored by the CPU controller can be displayed on thecluster when the operator selects a display mode by touching SELECTswitch alone or with BUZZERSTOPswitch on the cluster as below.1)Way 1Key switchONor STARTWay 2Touch AUTO DECELswitch while pressingBUZZER STOPatgroup 1~4.Group 0(Default)Group 1(Volt, temp,EPPR press,version)Group 2(Error code)Touch SELECTswitchonce while pressingBUZZER STOP.In this group SELECTLED ONTouch SELECTswitchtwice while pressingBUZZER STOP.In this group BUZZERSTOPLED blinksHow to select display modeGroup selection Display mode selectionNameDisplay groupDisplay on the clusterGroup 3(Switch input)Touch SELECTswitch3 times while pressingBUZZER STOP.In this group SELECTLED blinks at 0.5secintervalorororororororInitialTouch SELECT1 timeTouch SECLET 2 timesTouch SELECT 3 timesOption(Only whena pressuresensor isinstalled)DefaultTouch SELECT1 timeTouch SELECT2 timesTouch SELECT3 timesTouch SELECT4 timesDefaultTouch SELECT1 timePress down( ) & SELECT at the same timeDefaultTouch SELECT1 timeTouch SELECT2 timesTouch SELECT3 timesTouch SELECT4 timesTouch SELECT5 timesTouch SELECT6 timesTouch SELECT4 timesTouch SELECT5 timesTouch SELECT6 timesEngine rpmTimePower shift pressure(EPPR valve)CPU model & versionFront pump pressureRear pump pressurePilot pressureBattery voltage(V)Potentiometer voltage(V)Accel dial voltage(V)Hydraulic oiltemperature(°C)Coolant temperature(°C)Current errorRecorded error(Only key switch ON)Recorded error deletion(Only key switch ON)Pump prolix switchAuto decel pressure switchPower boost switchTravel oil pressure switchOne touch decel switchTravel alarm switchPreheat switch [...]... (Activated) Pb : oFF Shows that power boost switch is released off (Canceled) 5- 37 Group Display Description Name Ho : on or oFF Hourmeter nr : on or oFF Neutral relay (Anti-restart relay) Ho : on Shows that hourmeter is activated by CPU controller Ho : oFF Shows that hourmeter is turned off nr : on Shows that neutral relay for anti-restarting function is activated(Engine start is possible) nr : oFF Shows... It shows that pump power shift pressure of EPPR valve being controlled by the CPU controller is 10bar Range : 00~50bar by 1bar TIME 12 : 30 EP : 10bar Group 0 25 : C1.1 It shows that machine model(R250LC-7) and the program Model and CPU version of the CPU controller is 1.4 program version Version display range : 0.0~9.9 by 0.1 P1 : 100bar (Option) It displays front pump pressure of 100bar which is...Display group How to select display mode Group selection Display mode selection Name Display on the cluster Default or Touch SELECT 1 time Neutral relay (Anti-restart relay) or Travel speed solenoid or Power boost solenoid (2-stage relief solenoid) or Boom priority solenoid or Travel alarm or Touch SELECT 6 times Max flow cut off solenoid or Touch SELECT 7 times Group 4 (Output) Hourmeter... detected by temperature sensor is 50° C Range : 0~150° by 1° C C ° Ct : 85° C Coolant temperature It shows that coolant oil temperature detected by temperature sensor is 50° C Range : 0~150° by 1° C C 5- 36 Group Display Description Name Current error It shows that current error of 03(Short circuit in pump EPPR valve system) is diagnosed by self diagnosis system in the CPU controller If more than 2 errors,... Touch SELECT 4 times In this group SELECT LED blinks Touch SELECT 5 times at 1sec interval ※By touching SELECT switch once while pressing BUZZER STOP, display group shifts Example : Group 0 1 2 3 4 0 5- 35 2) DESCRIPTION OF MONITORING DISPLAY Group Display Name Description 2250 rpm Engine speed It displays current engine speed detected by engine speed sensor from 500 to 3000rpm Range : 500~3000rpm by... Shows that max flow cut off solenoid is released solenoid ts : on or oFF Group 4 PR : on or oFF Preheat relay PR : on Shows that preheat relay is activated PR : oFF Shows that preheat relay is released 5- 38 . page 5-5 for details.(1)※21073CD 2121 073CD2221073CD2321073CD2421073CD25 5-3 3This switch is used to select the monitor display function.Refer to the page 5-3 6. Breaker operation modeRefer to the page 5-4 for details.WORK MODE SWITCH(1)※18)21073CD1721073CD1821073CD1221073CD20 5-3 2This switch is used to actuate the