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Chapter 1

SYSTEM OVERVIEW

1.1  Introduction

WDG4  and  WDP4  series  Diesel  Electric
Locomotive of Indian Railways are  driven by
3-phase  AC  Traction  Motors,  employing  AC-
DC-AC  Power  Transmission  system.  Medha
Servo  Drives  Pvt.  Ltd.  has  designed  and
developed  indigenously  the  AC-AC  Traction
System  type  MAS  696  suitable  to  the  above
said  series  of  locomotives  delivering  up  to
4500 HP.

MAS  696  is  a  comprehensive  solution
encompassing  complete  locomotive  control
and fault diagnostic features along with 3 MW
traction  converter.  MAS  696  AC  AC  Traction
system comprises of four cabinets:

Ÿ

    Electrical Control Cabinet 1 (ECC#1)

Ÿ

    Electrical Control Cabinet 2 (ECC#2)

Ÿ

    Electrical Control Cabinet 3 (ECC#3)

Ÿ

    Traction Control Cabinet (TCC)

The  Diesel  Electric  Locomotive  is  equipped
with  Turbo  charger,  16  cylinders,  two  stroke
Diesel Engine. The Main Generator Assembly
is directly coupled with the Main Crank shaft of
the  Diesel  Engine.  The  Main  Generator  is  3
phase 

Alternator 

consisting 

of 

two

independent  and  Interwoven  sets  of  stator
winding and rotor field common to both

Fig. 1.1 Cabinets of AC AC

Traction System

ECC #2

ECC #1

ECC #3

TCC

Summary of Contents for MAS 696

Page 1: ...MEDHA SERVO DRIVES PVT LTD Operator s Manual IM 70 rev 3 TM TYPE MAS 696 AC AC TRACTION SYSTEM ...

Page 2: ...rvo Drives Pvt Ltd Unauthorized copying reproduction or disclosure of any portion of the contents of these materials by any means including printed or duplicated materials on screen publication or Web documentation is expressly forbidden Medha logo is trademark of Medha Servo Drives Pvt Ltd Any other trade marks are the property of their respective owners Document No IM 70 rev 3 Released June 2011...

Page 3: ...ng Procedure for WDG4 WDP4 Diesel Engine 18 Engine Stopping System 18 Chapter 5 Electrical Control Cabinets 20 ECC 1 20 ECC 2 21 ECC 3 24 Driver Accessible Panels 26 Circuit Breaker Panel 26 Test Panel 28 Engine Control Panel on ECC 1 29 Control and Operating Switch Panel 31 Chapter 6 Speedometer 33 Chapter 7 Tractive Effort Dynamic Brake Effort Meter 34 Chapter 8 Indicating Lights Panel 35 Chapte...

Page 4: ... Braking for Locomotive in Tandem 47 Engine on Train Coupling Locomotive to Train 47 Pumping Up Air 48 Double Heading Service 48 Helper Service 48 Changing Operating Ends 49 Stopping Engines 50 Chapter 11 Display Unit and Navigation Through Menus 51 Locomotive Control Computer Display Panel Details 52 Menu Screens Sequential Flow and Key Actions for Display 53 How to Select SELF TESTS 54 TM Cutout...

Page 5: ...fault diagnostic features along with 3 MW traction converter MAS 696 AC AC Traction system comprises of four cabinets Ÿ Electrical Control Cabinet 1 ECC 1 Ÿ Electrical Control Cabinet 2 ECC 2 Ÿ Electrical Control Cabinet 3 ECC 3 Ÿ Traction Control Cabinet TCC The Diesel Electric Locomotive is equipped with Turbo charger 16 cylinders two stroke Diesel Engine The Main Generator Assembly is directly ...

Page 6: ...d to IGBT based Traction Inverters Each Traction Inverter has separate control module in the form of Traction Computer The Traction Computer receives Traction Motors speed temperature Voltage and Current values for controlling the IGBTs to maintain required torques according to Notch selection The Traction inverters have main role in controlling the 3 phase induction motors The Traction Inverters ...

Page 7: ...tion Motor is geared with a pair of Wheels with the gear ratio 17 90 MAC loco for Goods Service and 17 77 PAC loco for Passenger service The Traction Motors once again convert the Electrical power into Mechanical power to provide high starting Torque required for Locomotive service These are explained in detail in later chapters 1 1 1 Auxiliary Generator The Auxiliary Generator Aux Gen Is driven b...

Page 8: ...tationary magnetic field is established in the stator of the Motor The momentum of the Train causes the Motor to Turn As the motor turns the Armature cuts through the stationary magnetic field in the stator This cutting generates a current flow in the Armature which is dissipated through Grid resistors On the DC Machines four power cables are run to the Motor two are connected to the field and two...

Page 9: ...wledged while the Aleter light is flashing or alerter alarm is sounding the alarm stops sounding and a penalty Brake is applied for 34 seconds or until Locomotives speed drops to zero whichever occurs first Then the penalty brake application must be reset before normal operation of train to continue One must follow Railway rules and operating practices regarding use of Alerter Equipment Pressing e...

Page 10: ...k bridges when Locomotive is traversing them the Manual TE Limiting option was developed to enable the operator to limit the Tractive Effort through lighted switch mounted on Engine control panel The position of the switch indicates the loco pilot that the feature has been turned ON indicating that the switch is active The tractive effort limit may be imposed by train line Input from another locom...

Page 11: ...rise which are not covered sufficiently M S MEDHA s representatives can be contacted Information about adjustment testing and maintaining Locomotive equipment is provided in other Locomotive service manual and various maintenance instructions 2 1 WDG4 WDP4 Locomotive Safety Precautions WDG4 WDP4 Locomotive has an AC Electrical Transmission system and therefore includes special equipment not found ...

Page 12: ...ithin 35 minutes while cranking Computer does not allow for cranking unless PRE LUBRICATION is successfully completed for 15 minutes 2 2 Automatic Discharge The DCL Voltage is discharged automatically when the Locomotive operator takes manual action to shutdown the Locomotive There are 3 general ways to discharge the DC LINK capacitors and other components prior to servicing plus a fourth method t...

Page 13: ... been discharged by braking grids or the brake chopper or crow bar the DC LINK Contactors moves to the open position Moving all the DC LINK switch gears to the open position causing all Traction Inverters to be shorted and grounded with busbar connected to connectors of the DCL contactors a When the Engine is shutdown regardless of the Isolation switch position the control computer picks up all th...

Page 14: ...ure that Throttle Handle of both control console is in IDLE Reverser handle at center and RUN ISOLATE Switch is in ISOLATE position 2 Ensure there is sufficient oil level of Compressor Oil Engine Lube Oil and Governor Oil 3 Ensure there is sufficient Coolant Water level in the water tank Engine dead Full 4 Ensure that no one is working on the Engine Generator Room Compressor Room etc and all doors...

Page 15: ...TC 4 CB TC 5 CB and TC 6 CB All Traction Computers Initializes and power ON self check is done 6 Switch ON COMP CONTROL Circuit Breaker The MAS 696 System Initializes and Power ON self check is done If any abnormality is found the same message is informed through Display Unit for correction otherwise the MAIN MENU is displayed 7 Switch ON all Traction Computer Blower circuit breakers TCC BLWR 1 CB...

Page 16: ...ter pump is not provided on Locomotive Advance the Governor linkage Lay shaft gently while cranking till the Engine is running Ÿ Verify that the Ground Relay CUTOUT Switch is closed lever up and sealed properly It is located on the Circuit Breaker Panel Ÿ Never discharge Batteries excessively by repeated cranking If first two or three attempts are failed identify the fault or check and reset safet...

Page 17: ...puter advice 20 Keep Auto Brake Handle in Full Service on working control console and observe the following message after 10 seconds Message To restore normal Air Brake operation keep Auto Brake Handle in RUN position Ÿ Keep the Engine at Low Idle for 6 minutes Don t shift the ISOLATION switch to RUN position immediately to avoid automatic shutdown due to low water and low LUBE OIL Pressure After ...

Page 18: ...left side of the locomotive just above the fuel tank filler 3 EFCO 3 The emergency fuel cutoff push button switch mounted on the right side of the Locomotive just above the fuel tank filler 4 MU ENG STOP The multiple Engine Stop Run switch mounted on the control console 2 pressing the STOP portion of this switch stops all Engines in the consists This is the result of the pickup of SDR relay when S...

Page 19: ...fter shutdown of the Locomotive let the COMP CONTROL and TURBOLUBE PUMP Circuit Breakers remain in ON position These two CB s are required to perform POST LUBRICATION for TURBO SUPER CHARGER for maximum 35 minutes Fig 4 1 EFCO Engine Stop Fig 4 2 MU Engine Stop ...

Page 20: ...he drivers cab It houses equipments that controls and supplies power to the Locomotive The various internal equipments not driver accessible included in ECC 1 are 1 Main Control Panel Relays Resistors etc 2 Locomotive Control Computer MLC 691 3 ADB 1 2 3 4 and FDB 4 Four Braking contactors B1 B2 B3 B4 5 Silicon Control Rectifier SCR Assembly High voltage and current are present within this cabinet...

Page 21: ...eplaced with DPC Circuit Breaker 9 Auxiliary Generator FB Circuit Breaker is removed 10 Ground Relay is replaced with Ground Leakage detection current sensors 11 There is no separate Event recorder it is part of LCC There are no panel Mounted Modules i e DVR TLF ASC FCF FCD These all are part of the LCC Unit 12 Power supply modules i e PSM300 PSM310 PSM320 are replaced with Power Supply modules lo...

Page 22: ...s used in the locomotive The AGAV and AGAI sensors are provided in the Battery Charger output as shown in Fig 5 3 to control auxiliary generator within safe operating limits by LCC The AUX GEN Breaker is provided to supply auxiliary generator power to locomotive low voltage DC circuits It protects against excessive current demands Since the low voltage DC system provides companion alternator excit...

Page 23: ...ing by two starting motors by energizing ST STarting contactor through STA Auxiliary STarting contactor Storage batteries provide energy to the starting motors through ST contactor Two starting motor solenoids are mounted at the lower rear right hand side of the engine The solenoids engage the starting motor pinions with the engine ring gear When both pinions are engaged full battery power is appl...

Page 24: ...MOTORS CONTROL Each fan motor circuit consists of one slow speed and two full speed contactors FAN MOTOR 1 with associated slow speed contactor FCS 1 and fast speed contactors FCF1A and FCF1B The circuit for FAN MOTOR 2 operation is in a similar manner The cooling system designed to normally maintain operating temperature of 79 C to 85 C Both fans will be picked up in sequence starting with the sl...

Page 25: ... to measure MR pressure and accordingly to control compressor loading and unloading control by LCC to maintain required MR pressure The MRPR sensor and Fan Contactors are shown in Fig 5 7 Fig 5 6 Radiator Blower CB s in ECC 3 FCF1B FCS1 FCF1A FCF2B FCS2 FCF2A Fig 5 7 Fan Contactors in ECC 3 MRPR CB RBL 1 CB RBL 2 TB 83A TB 83B TB 83c Air Filter CPC Connectors 833A D 823A B ...

Page 26: ...rcuit Breaker provides power and protection to the cab end and hood end Head Light circuits 3 CAB FANS Circuit Breaker This 30A Circuit Breaker provides power and protection for Cab Air Circulating Fan motors and their control circuits 4 AIR DRYER Circuit Breaker This 15A Circuit Breaker provides power and protection to the main Reservoir Air Filter Dryer and associated circuit 5 AC CONTROL Circui...

Page 27: ...rovides power and protection to the Turbo Lube pump Motor It must be switched ON before Engine start for pre lube and after Engine shutdown to remove residual heat from the Turbo bearings If the Engine is running and this breaker is OFF the TURBO CIRCUIT BREAKR IS NOT CLOSED message appears on the Display 12 COMPTR CONTROL Circuit Breaker This 15A Circuit Breaker protects the Locomotive Control Co...

Page 28: ...ciated circuitry If the TA field current overload occurs the Breaker trips and the Locomotive Computer Displays the Message Main Gen Field Circuit Breaker is tripped under load 18 TCC BLOWER 1 to TCC BLOWER 6 Circuit Breakers This 30A Circuit Breaker protects the Traction Inverter Blower Motor and associated circuit 19 GROUND CUTOUT Switch This Toggle switch when open disconnects ground protection...

Page 29: ...peed that increases for compressor operation Low Engine Temperature and Turbo cool down cycle RUN In this position Locomotive responds to Throttle handle setting changes Digital Inputs from operator local or train lined and develops POWER in normal operation 2 DYN BRAKE CUTIN CUTOUT Switch This switch has two positions CUT IN and CUT OUT If this slide switch is set in CUT OUT slider down the Locom...

Page 30: ... maintenance lights With the slider in the ON setting power is supplied to these lights provided that the Battery knife switch is closed and the Maintenance Lights switch is ON 6 EMERGENCY FUEL CUTOFF ENGINE STOP Switch When this switch is pressed for approximately 0 5 seconds this red push button switch requests the Locomotive Computer to stop the Diesel Engine The push button need not to be held...

Page 31: ... Position When the Engine Run switch is OFF slider down Engine speed is not effected by Throttle Handle position except during Load Test Mode 2 GEN FLD SWITCH Set this switch ON if the Locomotive is to LEAD in tandem Set this switch OFF if the Locomotive is to TRAIL in tandem or if it is to be hauled dead in tandem This switch is ON when its slider is up WDG4 WDP4 Traction power setup is different...

Page 32: ...ng 4 DYNAMIC BRAKE CONTROL CB Circuit Breaker protects against a faulty operating or test setup The circuit should be in the ON up position for normal operation A tripped circuit breaker generally indicates that during dynamic brake testing more than one dynamic brake handle in a consist was out of OFF position The safety Guard covering for this breaker lever prevents accidental switching the Brea...

Page 33: ...ounted on both the control console Instrument panel The Analog Speedometer receives analog signals from LCC these resultant signals are based on TM speed sensors speed signals The speedometer scale is 0 to 120 kilometers per hour km h 6 1 Speedometer ...

Page 34: ... for Tractive Effort and When the Locomotive is on Dynamic Brake mode the Pointer moves Counter Clockwise for Dynamic Braking Effort The Tractive Effort meter scale is 0 to 550 KN Kilo Newtons The Dynamic Brake effort scale is 0 to 300 KN This meter also includes a High Motor Tractive Effort indicator yellow LED that lights when Tractive Effort is high When TE 400 KN the yellow LED lights up with ...

Page 35: ...h TE LIMIT SW This switch status is given as digital input to the Locomotive Control Computer and other Locomotives in tandem through Train lined with this Input signal 8 1 Indicating Lights Panel Each of the following indicator lights has the Push to test feature which allows testing the light circuit alone This test determines if the light circuit isworking properly Pressing the lens cap applies...

Page 36: ...motive computer immediately lights WHEEL SLIP indicator and drops power when the Traction Computer detects Locked Wheel After 10 seconds delay 20 if Air Brakes are applied Locomotive Computer sets fault Sounds alarm Bell continues wheel slip light and displays following Message n LOCKED WHEEL OR SPEED SENSOR FAULT STOP TRAIN AND VERIFY THAT AXLE ROTATES Fault Indications above continue until Drive...

Page 37: ...THER LOCOMOTIVE If another Locomotive is in tandem connected by MU jumper to this Locomotive detects any condition that causes it to light its WHEEL SLIP indicator it energizes the train line that lights the WHEEL SLIP indicator on this Locomotive WHEEL OVER SPEED CONDITION The indicator light flashes ON and OFF to indicate wheel Traction Motor over speed which can be caused by excessive track spe...

Page 38: ... PCR set throttle handle in IDLE then set Automatic Brake handle in Emergency for 60 seconds then move it to Release position 6 BRAKE WARN LIGHT The Brake Warn indicator lights whenever this Locomotive and or another Locomotive in tandem with jumper cable is connected generates excessive Dynamic Braking current regardless of tractive effort meter reading If the light switch is ON make sure that it...

Page 39: ...to the Locomotive low voltage electrical system The Battery switch must be closed at all times during Locomotive operation 2 STARTING FUSE The 800 Amps starting fuse is in use only during Diesel Engine starting Battery current flows through fuse and the starting contactor to the starting Motors The starting fuse protects the Motors from current overload A defective starting fuse can be detected wh...

Page 40: ...ction is arranged as follows 1 Preparation for service Ground Inspections Engine Room Inspection Starting Fuse Battery Knife Switch Box Inspection Lead Locomotive cab Inspection Trailing Locomotive cab Inspection 2 Starting Lead Locomotive Engine Engine Inspection Engine Starting 3 Starting Trailing Locomotive Diesel Engines 4 Various other operating procedures 5 Stopping Engines 6 Towing Locomoti...

Page 41: ...n water tank sight glass It should be nearer to FULL Engine running mark STARTING FUSE AND BATTERY BOX INSPECTION 1 Verify that main Battery Knife switch is closed 2 Verify that Staring Fuse is installed in good condition and is of correct rating LEAD LOCOMOTIVE CAB INSPECTION On the Lead Locomotive Control Unit check the Control locations described in operation section Set the equipment for opera...

Page 42: ... MTR c At Circuit Breaker Panel verify that GROUND RELAY CUTOUT switch is closed lever up and sealed ENGINE CONTROL PANEL 1 ISOLATION switch in START STOP ISOLATE position 2 Miscellaneous switches set as required CONTROL CONSOLES Set control console devices as follows 1 Set CONTROL FP switch ON slider up This always Fuel Pump to start and Run when FP ES switch is in Fuel Prime or Engine start 2 Se...

Page 43: ...ed after the following inspection have been completed ENGINE INSPECTION 1 Ensure Throttle Handle of both control console is in IDLE Reverser handle is at center and RUN ISOLATE Switch is in ISOLATE position 2 Ensure there is sufficient oil level in Compressor oil Engine sump Lube Oil and Governor Oil 3 Ensure there is sufficient Coolant Water level in the water tank Engine dead Full 4 Ensure no on...

Page 44: ...REAKERS 3 At the No 2 Control Console make sure that the GEN FLD and ENG RUN switches are OFF DOWN Verify that the CONTROL FP switch is ON 4 Turn the FP ES switch lever to PRIME and hold Normally 10 20 sec it there until the fuel flows clear and free of bubbles in the return fuel sight glass and then release it 5 Turn the FP ES switch lever to ENGINE START and hold it there until the Engine Starts...

Page 45: ...rted and is operating normally check and ensure that all Engine room access doors are securely closed 10 3 Starting Training Locomotive Diesel Engines Start trailing locomotive Engines in the same manner as the Engine in the lead unit Refer to Starting lead Locomotive 10 4 Setting Locomotives On Line After the Diesel Engine is started and inspected set the Locomotive on line by setting the ISOLATI...

Page 46: ...Hand Brake and remove any wheel blocking 10 6 Handling Light Locomotive After starting the Engine placing the Locomotive on line and completing the preceding inspections and precautions the Locomotive is handled as follows 1 Set the ENG RUN and GEN FIELD switches ON on Control operating switch panel 2 Set the Air Brake system on single or leading Unit for LEAD position 3 Insert the Reverser Handle...

Page 47: ... 8 Follow the same procedure to check an independent brake application Also release an Automatic brake service application by pulling up the independent brake handle bail release ring Inspect all brakes in the tandem to verify they are released 10 8 Dynamic Braking For Locomotive in Tandem The Dynamic Brake Handle operates the Dynamic Brake Rheostat The Locomotive Computer uses the Voltage level s...

Page 48: ...een them but MU jumper electrical cable are not provided There is a Driver in each Locomotive Prior to Double Heading behind another Locomotive make a full service brake pipe reduction with the Automatic Brake valve and set the brake system in the Lead out mode The operation in the throttle is normal but the Brakes are controlled from the lead Locomotive An Emergency Air Brake application may be m...

Page 49: ...eded 9 All the Circuit Breakers on No 1 and No 2 ECC cabinet Circuit Breakers are to be remained ON 10 After completing the preceding steps move to the cab of the new LEAD UNIT ON END BEING CUTIN 1 At the No 2 Control Console make sure that the Gen Field switch is OFF slider down 2 Insert Reverser direction handle and leave it in CENTERED 3 Set Automatic Brake Handle in FS full service for at leas...

Page 50: ...Engine Control panel EFCO STOP push button and need not be held in nor reset 3 Pull the Lay shaft injector rack manual control lever outward towards the right side of the Locomotive and hold it there until the Engine stops completely The lay shaft overrides the engine governor forcing the fuel injector racks into the No Fuel setting 4 Close the Low water detector test cock lever horizontal After s...

Page 51: ...rameters are available for selection The parameters are grouped functionally e g Excitation related parameters Aux Gen Related parameters wheel RPM s and Traction Motor currents etc User can select any one of the groups for display and record the required Loco parameters while testing the Locomotive By default the display Unit is in Status Display mode In addition to Loco parameters warning messag...

Page 52: ...r screen it serves no purpose In the example shown above the MAIN MENU the SELECT option executes with to the F3 key EXIT with F4 NEXT with F2 and F1 serves no purpose ON OFF key is used to turn the Display ON or OFF This can be done from any screen The screen may turn ON by itself if the computer has a crew message to announce MAIN MENU key is used to force the display back to the MAIN MENU scree...

Page 53: ...s not in use at present 11 2 Menu Screens Sequential Flow and Key Actions for Display The Locomotive computer display is available for both locomotive operation and locomotive service functions 1 Operation Locomotive crew members use only crew message screens to monitor unusual operating or fault conditions and cutout motors or reset faults 2 Service Maintenance persons use two types of screens Ÿ ...

Page 54: ... get SELF TEST MENU SELF TEST is selected from Main Menu Self Test Page 1 The Self Test screen is displayed in Fig 11 3 Press No 1 key or Keep cursor on AUTO TESTS and press F3 key for Auto tests list F1 F2 F3 F4 E n t e r P a s s w o r d _ _ _ _ _ D E L E T E O K C A N C E L Fig 11 2 F1 F2 F3 F4 S E L F T E S T S P A G E 1 1 1 A U T O T E S T S 2 C O M P U T E R I Z E D I O T E S T S 3 L O A D T ...

Page 55: ...to Test Page 3 The third screen for Auto Test is shown in Fig 11 6 F1 F2 F3 F4 A U T O T E S T S P A G E 1 3 1 A I R B R A K E T E S T 2 D C L S H O R T I N G T E S T 3 E X C I T A T I O N S C R s T E S T 4 W H E E L S L I P T E S T N E X T S E L E C T E X I T Fig 11 4 F1 F2 F3 F4 A U T O T E S T S P A G E 2 3 5 C O N T A C T O R R E L A Y T E S T 6 C O O L I N G F A N T E S T 7 R A D A R T E S T ...

Page 56: ...e provided for Individual Traction Motors The Traction Motor CUTOUT CUTIN function can be performed from the Traction Status Display Screen Access the Traction Status Screen selection either two ways 1 Press Main Menu and press No 4 key to select TRACTION STATUS on the screen 2 Press Main Menu and bring cursor on TM CUTOUT then press F3 key to select TRACTION STATUS TM CUTOUT on MAIN MENU The scre...

Page 57: ...U T N E X T S E L E C T E X I T Fig 11 7 Fig 11 8 F1 F2 F3 F4 T R A C T I O N M O T O R S P A G E 1 1 T M N O S T A T U S T M N O S T A T U S 1 T M 1 C U T I N 4 T M 4 C U T I N 2 T M 2 C U T I N 5 T M 1 C U T I N 3 T M 1 C U T I N 6 T M 1 C U T I N P R E V C H A N G E E X I T Fig 11 9 F1 F2 F3 F4 T R A C T I O N M O T O R S T A T U S P A G E 1 1 T M N O S T A T U S T M N O S T A T U S 1 T M 1 C U...

Page 58: ...y to enter for password The screen for entering the password is displayed in Fig 11 12 Fig 11 10 F1 F2 F3 F4 T R A C T I O N M O T O R S T A T U S P A G E 1 1 T M N O S T A T U S T M N O S T A T U S 1 T M 1 C U T I N 4 T M 4 C U T I N 2 T M 2 C U T I N 5 T M 5 C U T I N 3 T M 3 C U T O U T 6 T M 6 C U T I N P R E V C U T I N E X I T T M 3 C U T O U T Fig 11 11 F1 F2 F3 F4 E N T R Y C O N D I T I O...

Page 59: ...oller No 2 2979 Air Brake Controller No 2 failure switch to Air Brake Controller No 1 2980 Air Brake failure Check for proper LEAD TRAIL set up 2983 Air Brake power interruption penalty place handle in FS for 10 seconds 2985 Air Bake Emergency place handle in Emergency for 60 seconds 2986 Air Brake penalty place handle in Full Service for 10 seconds 2987 To restore normal Air Brake operation place...

Page 60: ...ers are Dirty Change out request power may limit to TH6 66 Engine Dead Locomotive is not Isolated 67 Emergency Fuel Cutoff activated 76 Engine speed Increases Turbo Cool down cycle 77 Engine speed Increases Air Compressor operation 341 Engine Speed increases Traction Motor over Temperature 716 Engine Dead while Loading 937 Engine Dead with cold water 994 Engine shutdown Engine oil pressure 1104 En...

Page 61: ...1 Locked Wheel or Speed Sensor Fault Stop Train Verify that Axle rotate 16 2 Locked Wheel or Speed Sensor Fault Stop Train Verify that Axle rotate 17 3 Locked Wheel or Speed Sensor Fault Stop Train Verify that Axle rotate 18 4 Locked Wheel or Speed Sensor Fault Stop Train Verify that Axle rotate 19 5 Locked Wheel or Speed Sensor Fault Stop Train Verify that Axle rotate 20 6 Locked Wheel or Speed S...

Page 62: ...Reduced Load TCC 4 Blower Circuit Breaker is not closed 603 Reduced Load TCC 5 Blower Circuit Breaker is not closed 603 Reduced Load TCC 6 Blower Circuit Breaker is not closed 617 No Load Improper DCL 1 Status Cycle Computer Control CB 617 No Load Improper DCL 2 Status Cycle Computer Control CB 617 No Load Improper DCL 3 Status Cycle Computer Control CB 617 No Load Improper DCL 4 Status Cycle Comp...

Page 63: ...wer 1 current imbalance 2661 Reduced Dynamic Brake Load Test Grid Blower 2 current imbalance 5120 Radiator Fan 1 Fault Limited Cooling available 5121 Radiator Fan 2 Fault Limited Cooling available 7000 TC 1 Torque Limit DCL capacitor Temperature sensor faulty 7001 TC 1 Torque Limit UTOP HS 7002 TC 1 Torque Limit UBOT HS 7003 TC 1 Torque Limit VTOP HS 7004 TC 1 Torque Limit VBOT HS 7005 TC 1 Torque...

Page 64: ...g on MU operation 5 Apply Loco Brakes through Independent Brake Handle and ensure Brake Cylinder pressure 5kg cm2 to avoid Alerter Penalty Brake application while the Train is stabled condition Do not release Loco Brakes while Loco is in stable condition to avoid Alerter penalty Brake application 6 While Cranking the Locomotive advance the Governor Lay shaft gently to avoid Discharge of Batteries ...

Page 65: ... 10 TM SPEEDS 11 TM CURRENTS 12 TM TEMPERATURES 13 TM1 PARAMETERS 14 TM2 PARAMETERS 15 TM3 PARAMETERS No Dos Don ts 8 Press Alerter Reset button when the Alerter light is flashing or Audio bell is sounding to avoid penalty Brake application Do not Disable the Alerter system unless and until the system is malfunctioning 9 While Re cycling Computer Control Circuit Breaker keep Reverser Handle at cen...

Page 66: ...REENS SETTINGS LOCK WHEEL DETECTION AUTO CREEP CONTROL BLENDED BRAKE VCD MODE DATE TIME LOCOMOTIVE NUMBER LOCOMOTIVE TYPE SHED NAME TM CUTOUT Individual TM CUTOUT is possible to cutout up to 5 Traction Motors BLENDED BRAKE Blended brake provided on WDP4 Loco s only SELF TESTS Self Tests Menu has AUTO TESTS and MANUAL TESTS It can be performed only after entering a valid PASSWORD METER TEST Meter T...

Page 67: ...TYPE MAS 696 Operator s Manual AC AC TRACTION SYSTEM Medha Servo Drives Pvt Ltd P 4 5 B I D A Nacharam Hyderabad 500076 India www medhaindia com TM ...

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