Microprocessor Control Loco

05-01-2021

Microprocessor Control Loco (MEP-660) Now days, MEP-660 microprocessor is provided in diesel locomotive and such type of loco are called microprocessor control loco. New 11 series locos WDM3D and retrofitted WDG3A, WDM3A are microprocessor control locos. Their General Data as under -       Advantages of Microprocessor Control Loco  1. All Breakers and switches are similar to WDG3A except additional circuit breaker MPCB and PLPB for easy handling to LP 2. Very low intervention by the LP during faults trouble shooting activities by LP is simplified. 3. No reset of GR1, GR2 and GFOLR because sensors are provided for the same. 4. Pre and post lubrication feature

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ACT (RS) ABB Loco (English) (19. FAILURE MODE OPERATION)
January 10, 2021

Failure Mode Operation  This mode allows the locomotive to operate even if the angle transmitter of the TE/BE throttle has failed. In this mode, driving and electrical braking are controlled by the auxiliary contacts on the TE/BE throttle. Driving in failure mode  Driving in failure mode becomes necessary if the difference between

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ACT (RS) ABB Loco (English) (17. DRIVING / BRAKING)
January 10, 2021

Driving 1.After creating MR pressure above 6.4 kg/cm2 and node information no. 570. 2.Move the reverser into desired position. 3.Release the parking brake if applied 4.Put A9 to ‘RUN’ position & ensure BP 5 kg/cm2 5.Check AFI is not deviating. 6.Set the TE/BE throttle to desire position. 7.Put SA9 handle to

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ACT (RS) ABB Loco (English) (18. OPERATION OF THROTTLE)
January 10, 2021

Operation Of Throttle TE/BE Throttle  The TE/BE throttle controls traction and the electric braking effort of the locomotive with angle transmitter and auxiliary contacts. The TE/BE throttle has the following three end positions:  For Traction  Position 1/3                                 33% tractive

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ACT (RS) ABB Loco (English) (16. OPERATION OF REVERSER)
January 10, 2021

Operation Of Reverser  Reverser has following 3 positions. Position ‘F’ = Forward Position ‘O’ = Neutral Position ‘R’ = Reverse Throttle and reverser are interlocked

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ACT (RS) ABB Loco (English) (15. OPERATION OF BL KEY)
January 10, 2021

Operation Of BL Key BL key is operated for following mode: 1. DRIVING MODE :- ( Off - D ) 2. SELF HOLD MODE .- ( D - Off ) 3. Switching OFF control electronics: ( D - Off - C - Off ) 4. COOLING MODE:-- ( D - Off - C - Off - C ) Driving Mode: This mode is used to drive the loco. To achieve this mode driver has to: 1) Insert BL key

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ACT (RS) ABB Loco (English) (14. HOW TO ENERGISE THE LOCO)
January 10, 2021

How To Energies The Loco 1.Check the machine room and cubicle HB1/2,SB1/2 and pneumatic panel and ensure that all Circuit breakers, rotating switches and cock at Pn. Panel are at Normal position and ensure that key ‘IG-38’ is provided on pneumatic panel. Also ensure that panto selector switch is at normal position.  2 compartment

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