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Denyo DCA-800SPK, Instruction Manual

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Denyo DCA-800SPK Instruction Manual Download Page 31

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- Engine will  not 

start up

Engine starts up

Cell  motor 
will  not run

Г Improper grounding 

Detached or  loosened battery terminal 
Battery switch set at OFF position 
Discharged Battery 

- Impriperly operated key switch 

Iapriperly operated starter 

L Broken  lead wire

-►Repair 
-►Repair 
-►Turn ON
-►Charge or replace 
-►Replace 
-►Replace 
-►Repair

Cell  motor 
runs

Speed will 

not rise

Electronic governor controler broken  -►Repair 
Fuel  shortage 

-►Supply

Air  in fuel  system 

-►Remove

Compression failure 

-►Repair engine

Air  in fuel  system 

-►Remove

Blinded fuel  filter 

-►Replace  element

Clogged air cleaner 

-►Replace  element

L Speed rises

- Abnormal  vibration  —  Impriper tightening 

-►Tighten

Engine 

-►Repair

Abnormal  noise 

-- Generator 

- r

 Broken bearing 

occurs 

-►Rep lace

*- Loosened  locking bolt 

-►Tighten

Bonnet 

-►Repair

Voltmeter will 
not operate

Rated voltage 
Will  not be 
reached

Voltage gose 

too high

Applied  load 
causes  large 
voltage drop

- Breaker will 

not be turned on

Yoltmeter failure 

AYR failure
Burned Resister to discharge 
Quenched residual magnetism 

Burned rotary rectifier 
Disconnected roter wiring 

Burned generator wiring

Yoltmeter failure 
AYR failure 
YR failure

Burned rotary rectifier 

Burned Resister to discharge 

Burned Generator wiring 
Low speed

Yoltmeter failure 

AYR failure 

YR failure

Burned rotary rectifier 
Burned Resister to discharge 
Burned main field, 

exciter field winding 

Unbalanced  load

Breaker failure 

Overcurrent relay failure 
Short  load circuit

Replace

To service plant

Replace

To service plant

Increase

Г

Replace

To service plant

To service plant

Balance

To service plant

Check

TROUBLESHO

OTI

NG

Summary of Contents for DCA-800SPK

Page 1: ...7 3842 65 04 62 8332 68 02 04 861 203 40 90 391 204 63 61 4712 77 13 04 4742 52 20 81 3519 55 03 13 495 268 04 70 8152 59 64 93 8552 20 53 41 831 429 08 12 772 734 952 31 3843 20 46 81 383 227 86 73 3...

Page 2: ...eassembly and repair of the engine please refer to the Engine Instruction M a n u a l supplied by the engine manufacture CONTENTS 1 PRECAUTIONS FOR SAFE OPERATION 1 2 SPECIFICATIONS 5 3 PARTS DESIGNAT...

Page 3: ...Free From Moisture The operation of the machine in a place exposed to rain moisture or wetness may cause electrocution For o p e r a tion under such conditions be sure to ground the machine and the l...

Page 4: ...ical Instrument Cables Properly Damaged cables of the electrical instruments are very dangerous causing electrocution and leakage Therefore if such a cable is found immediately repair or replace it 8...

Page 5: ...ed light such as lit tobacco or a burning match close to them In addition do not install and store the machine in a place near where fire is used 13 Connect Securely Damaged cables and loosened screws...

Page 6: ...n type JP20 synchronous generator Brushless type with AVR 700 800 KVA 200 220 V or 380 415 400 440 V 2021 2100 A or 1 0 6 3 9 7 4 1010 1050 A 50 60 Hz 1500 1800 rpm 0 8 lagging 3 4 wires Star Arm atur...

Page 7: ...to R U N position For startup at low air t e m p e r a t u r e set the switch at this position until the PREHEAT lamp becomes red heated just before turning the key to START position 2 Tachometer The...

Page 8: ...peration the pressure gauge indicates 3 5 kg cnf When the engine is cold the pressure may rise aboye this range just after startup In such cases perform warming up until the normal pressure is attaine...

Page 9: ...nsparent portion In such c a s e s immediate 1 replace or clean the e 1e m e n t After replacement or I e a n i n g press the indicater button to return the red piston to its original position 10 Thro...

Page 10: ...IGH Turning the switch to this position r e l e a ses the automatic idling function allowing the engine to be run at the speed set by the thrott le handle 13 Running Caution Lamp This lamp goes on dur...

Page 11: ...start the engine the lamp goes on and when the oil pressure rises after startup it goes off If this lamp goes on during operation the emergency stop device imme diately operates to shut down the engin...

Page 12: ...k each phase for current Yalue 19 AC Voltmeter The voltmeter indicates the output v o l t age Make sure that the voltmeter pointer stands at the rated voltage Use the voltmeter change over switch to c...

Page 13: ...ge 30 C to 110 C 24 Bearing thermometer Indicates the temperature of the generator bear in g Measurement range 20 C to 60 C Note 1 Their thermometers display errors as below Error Displays Temperature...

Page 14: ...Instant aneous Phase R Phase T Over load Between R and S U V Between S and T V Between T and R W U IR IT IT IR Between R S and T U Y ff Short ircu it Between R and S U V Between S and T V tf Between...

Page 15: ...n Open position padlock lever Charging motor power switch 1 Spring charging operation Pump the charging handle When the closing springs are fully charged a metallic c l i c k will be heard and no furt...

Page 16: ...on and control on the con tr 1 pane 1 side at least 1 m Leave enough space for engine inspection lubrication connection of cable to the load fuel supply and other operations both on the right and left...

Page 17: ...f the two H L marks is used at downtime or during idling Check engine oil with an oil level gauge to see that the oil level is in between marks H and L of the level gauge and replenish or replace it i...

Page 18: ...le Notes For specified quantity of cooling water refer to the Specifications Table 3 Check Fan Belt Check the belt for tention and elongation Adjust them if necessary If any abnormality is found on th...

Page 19: ...erminal 0 Recomended grounding wire sectional area 5 5 nf or larger 6 Check For Water And Oil Leakage Check the engine periphery for water and oil leakage If such leakage is found identify the leak sp...

Page 20: ...nner etc to prevent burning 1 Three phase Output Use U V ff for three phase load 2 0 0 2 2 0 V or 4 0 0 4 4 0 V 380V 415V U V W V V V Use 0 U 0 V 0 W for sing le p ha se load 115 127V or 231 254V 220V...

Page 21: ...emove the set screw Change oyer to the desired output voltage by setting the changeover plates and the changeover switch op its side as shown in the above drawing Note that insecure tightening of the...

Page 22: ...s length result in decreased input voltage to the electrical instruments causing them to operate with low power or be Inoperative The voltage drop across a cable can be determined from its load curren...

Page 23: ...at the lamp is O F F Turn the Starter Switch to S T A R T position slowly to start up the engine When the engine starts to run release the Starter Switch After engine startup make sure that the OK mon...

Page 24: ...itch on the control panel to L0 W position if the above changeover is made after startup the idling performed for a given time after startup is followed by the low speed operation continuing until the...

Page 25: ...ency stand so low during idling operation that the loading instruments may operate but function improperly During this period the Running Caution Laflip stays on to warn of this state Do not turn off...

Page 26: ...ic e If any abnormal engine oil pressure failure or water temperature rise occurs during operation this device shuts down the engine automat ic a 11 5 7 If Automatic Idling Device is defective With th...

Page 27: ...s as shown in the following drawing The generators are shdpped with the phase sequence set in 2 When generators designed for double voltage 200 220V or 400 440 are to be used change all of their outpu...

Page 28: ...operation to put No 3 and the following g e n e rators if any in parallel operation Note The Synchronizing Lamp of N o 2 generator goes on and off simultaneously with that of No l generator if both a...

Page 29: ...the same precautions as taken for daily storage For long term storage of the engine refer to Engine Inst ruction Ma n u a l supplied by the manufacture 7 3 Two tier Stacking Of Generators The generato...

Page 30: ...ble limit As illustrated in the following drawing remove the load side wire from the output terminal block turn the breaker 0 N and measure the insulation re s i s t ance between the output terminal b...

Page 31: ...r r Broken bearing occurs Replace Loosened locking bolt Tighten Bonnet Repair Voltmeter will not operate Rated voltage Will not be reached Voltage gose too high Applied load causes large voltage drop...

Page 32: ...T E R Y F U E L T A N K DR Y W E I G H T 1 I i irt 1 H H L ______ I _____I I ____I L l J I ___ I I I I 1 ft CJ i i i i i i p I 1 1 ___ 1 1 ___ 1 1 I 18 7 0 19 5 0 K OMA T S U SA 1 2 V I 4 0 D F 8 8 0...

Page 33: ...L O T LAMP 3 8 S T A R T E R SW ITC H 9 PANEL L IG H T 3 9 EMERGENCY STOP BUTTON 1 0 PANEL LIG H T SWITCH 4 0 P R E H E A T LAMP 1 1 SYNCHRONIZING LAMP 4 1 AIR CLEANER INDICATOR 1 2 SIN G PER C H A N...

Page 34: ...60 0V F FREQUENCY METER 5 6 5 H i PL 1 P IL O T LAMP PL2 3 SYNCHRONIZING LAMP R l 2 R E S IS T O R SW2 SIN G LE PAR CHANGE OVER SWITCH SW3 VOLTAGE CHANGE OVER SWITCH I L PANEL L IG H T sw i PANEL L IG...

Page 35: ...5 0 C O L O R C O D E wI R a C O L O R W I R E C O L O R B L A C K R R E D L B L U E W W H I BR R O W N Y Y E L L O W G G R E E N LB LIGHT BLUE GR G R A Y LG LIGHT GREEN V V 5O L E T 0 O R A N G E P...

Page 36: ...NNECTIO N A C C B R Q 4 O Q R 1 R 2 O W I R E S I Z E C O L O R C O D E 150 I 5 0 ram2 WIKC COLOR vu coioa I0 0 10 0 mra1 B R A C K R RED 20 2 0 mm L B L U E W WH 5 5 mm BR ROWN Y YE L LOW 2 2 mm G G...

Page 37: ...all related local work safety requirements and ordinances The owner is responsible for maintaining the unit in a safe operating condition Parts and accessories shall be replaced if unsuitable for safe...

Page 38: ...d other abnormal conditions Provide adequate space for engine inspection lubrication refueling cable connection to the load and operation Never remove or tamper with the safety devices guards or i n s...

Page 39: ...h turned ON while operating the engine Also always keep it OFF when engine is not running Do not wire the generator set the interior circuit Avoid low load operation for long periods of time Coolant U...

Page 40: ...for any damage or injury resulting from neglecting these precations or by non observance of ordinary cation and due care required in handling operating maintenance or repair even if not expressly men...

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