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Medha MEP 660 Troubleshooting Manual

Microprocessor based locomotive control system for diesel electric locomotives
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MEP 660 - Trouble shooting Manual
TROUBLE SHOOTING MANUAL
MICROPROCESSOR BASED
LOCOMOTIVE CONTROL SYSTEM
MEP 660
FOR DIESEL ELECTRIC LOCOMOTIVES
As Per
RDSO Specification No. MP.0.24.00.26 Rev. 0.3 November 2005
P- 4 / 5 B, I.D.A NACHARAM
HYDERABAD - 500 076
Ph. No. 040- 2717 3990
Fax. 040 2717 4908
Email: marketing@medhaindia.com
URL: www.medhaindia.com
Doc No.: IM – 51
Rev.2.0
Print: October 2008

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Questions and answers

Pinki
March 16, 2025

Error code 1295 MCC AVC communication fault.APU fuel saving mode prohibited. Cannot find above fault code in troubleshooting list.please guide.unable to start APU.

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1 comments:
pinki kumari singh
March 16, 2025

Fault message

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Malaya Rout
March 10, 2025

What is code 1088-P2 stuck closed

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1 comments:
Mr. Anderson
March 10, 2025

Fault code 1088 (P2 stuck closed) in the Medha MEP 660 troubleshooting manual indicates that the P2 power contactor remains closed when it should be open. This fault is triggered during an Auto/Manual test when the P2 auxiliary contact is detected as open.

Restrictions:
- Motoring in series is prohibited.

Alarm Bell Duration:
- 30 seconds.

Reset Level:
- Low, Manual. If the fault persists after manual reset, it will be generated again.

Probable Causes:
1. Low control air pressure causing delayed contactor operation.
2. P2 power contactor main contact tips welded.
3. P2 power contactor auxiliary contact tips welded.
4. Defective wiring.
5. Defective Digital Output Card 1 (MLSD16) in slot 14.
6. Defective Digital Input Card 2 (MDIP16) in slot 10.

Fault Isolation:
- The fault is likely due to delayed power contactor operation and may not be present during testing.
- Ensure proper overtravel of auxiliary contacts.
- Verify control air pressure is at 5 Kg/Sq.Cm.

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Summary of Contents for Medha MEP 660

  • Page 1 MEP 660 - Trouble shooting Manual TROUBLE SHOOTING MANUAL MICROPROCESSOR BASED LOCOMOTIVE CONTROL SYSTEM MEP 660 FOR DIESEL ELECTRIC LOCOMOTIVES As Per RDSO Specification No. MP.0.24.00.26 Rev. 0.3 November 2005 P- 4 / 5 B, I.D.A NACHARAM HYDERABAD - 500 076 Ph.
  • Page 2 MEP 660 - Trouble shooting Manual CONTENTS DESCRIPTION PAGE INTRODUCTION 1 - 3 HIGH PRIORITY FAULT MESSAGES 4-116 MEDIUM PRIORITY FAULT MESSAGES 117-178 LOW PRIORITY FAULT MESSAGES 179-260 ONLY ERROR LOG MESSAGES 261-279 Annexure-1 280-281 Annesure-2 Annesure-3 283-284 Annesure-4 10.0 Revision sheet Doc No.: IM –...
  • Page 3 Annexure – 3 for easy reference. There are 5 digital input cards in the MEP 660 control unit from slot 9 to slot 13. A set of 16 inputs are connected to each card through ear marked cables having unique ID nos.
  • Page 4 The various digital inputs and digital outputs with their connections between locomotive and the control unit having their corresponding cable IDs and pin numbers are given as Annexure-5. This data is extracted from the Electrical schemnatics for MEP 660 system. Doc. No. ED-1000.
  • Page 5 MEP 660 - Trouble shooting Manual Precautions to be followed while troubleshooting: Where ever locomotive has been asked to move or open first notch with GF ON, extreme care should be taken that brakes are applied physically on the wheels and brake system is working normal as per Rail Road instructions.
  • Page 6 MEP 660 - Trouble shooting Manual HIGH PRIORITY FAULTS PARAMETER DESCRIPTION FAULT CODE 1001 FAULT MESSAGE Low Water Level. RESTRICTIONS Engine Shutdown ALARM BELL Continuous ON RESET LEVEL LOW, MANUAL. After manual reset if the fault still present, the fault will be generated again.
  • Page 7 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1002 FAULT MESSAGE Engine Over Speed. RESTRICTIONS Engine Shutdown ALARM BELL 30 Seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 8 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1003 FAULT MESSAGE Exciter Drive Short Circuit Fault. RESTRICTIONS Motoring and Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 9 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1004 FAULT MESSAGE LLOB trip. Reset Plunger. RESTRICTIONS Cranking Prohibited ALARM BELL Continuous ON RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 10 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1005 FAULT MESSAGE LLOB Trip. Reset Plunger. RESTRICTIONS Cranking Prohibited ALARM BELL Continuous ON RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 11 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1006 FAULT MESSAGE HOT ENGINE. Can’t Power Up RESTRICTIONS Motoring and Dynamic Brake are Prohibited. Engine speed restricted to IDLE. ALARM BELL Continuous ON RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 12 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1007 FAULT MESSAGE Power Circuit Ground Fault. RESTRICTIONS Motoring and Dynamic Brake Prohibited. Engine speed restricted to Idle. ALARM BELL Continuous ON RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 13 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1008 FAULT MESSAGE Control Circuit Ground Fault. RESTRICTIONS Cranking prohibited. ALARM BELL Continuous ON RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 14 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1009 FAULT MESSAGE Locked Axle on Wheel Number 1 RESTRICTIONS Motoring and Dynamic Brake Prohibited. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 15 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1010 FAULT MESSAGE Locked Axle on Wheel Number 2 RESTRICTIONS Motoring and Dynamic Brake Prohibited. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 16 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1011 FAULT MESSAGE Locked Axle on Wheel Number 3 RESTRICTIONS Motoring and Dynamic Brake Prohibited. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 17 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1012 FAULT MESSAGE Locked Axle on Wheel Number 4 RESTRICTIONS Motoring and Dynamic Brake Prohibited. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 18 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1013 FAULT MESSAGE Locked Axle on Wheel Number 5 RESTRICTIONS Motoring and Dynamic Brake Prohibited. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 19 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1014 FAULT MESSAGE Locked Axle on Wheel Number 6 RESTRICTIONS Motoring and Dynamic Brake Prohibited. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 20 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1015 FAULT MESSAGE Loco over speed. Move Master Controller Handle to IDLE RESTRICTIONS Motoring Prohibited. ALARM BELL 30 Seconds. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 21 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1016 FAULT MESSAGE Alternator Field Circuit Open FAULT RESTRICTIONS ALARM BELL 30 Seconds. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 22 MEP 660 - Trouble shooting Manual cable. J. If the Voltage is equal to the Exciter Voltage, then check the Voltage on the Traction Alternator brush arms. Extreme care should be taken while measuring the Voltage at the Traction Alternator slip rings. It is highly recommended to shut down the engine and connect measuring leads at the brush arms.
  • Page 23 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1017 FAULT MESSAGE Exciter Field Circuit Open / Short Fault. RESTRICTIONS ALARM BELL 30 Seconds. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 24 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1018 FAULT MESSAGE GF Stuck Open. Run Auto/Manual Test Can’t Power up: Electrical Control Problem RESTRICTIONS ALARM BELL 30 Seconds. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 25 MEP 660 - Trouble shooting Manual 1) The GF contactor-operating coil is open circuited internally or there may be a physical obstruction in the contactor operation. Check and replace the GF contactor if necessary. c) If the voltage is zero, then d) Check the voltage on coil terminal wire No.
  • Page 26 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1019 FAULT MESSAGE CEB Breaker OFF. RESTRICTIONS No restrictions, only indication. ALARM BELL Continuous ON RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 27 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1020 FAULT MESSAGE Rectifier Diodes HOT. RESTRICTIONS Engine RPM and Power Limited to 4th Notch. ALARM BELL 30 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 28 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1021 FAULT MESSAGE Rectifier Blower Failed or RBB Breaker OFF. RESTRICTIONS Engine RPM and Power Limited to 4th Notch. ALARM BELL 30 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 29 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1022 FAULT MESSAGE Wrong Command: TL6 & TL17/TL23 High. Can’t Change Mode RESTRICTIONS Motoring and Dynamic Brake Prohibited ALARM BELL 30 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 30 MEP 660 - Trouble shooting Manual backside TB. 4. If voltage is available on any of the above wires, Disconnect the bunch wires and identify which lead is getting wrong supply and rectify. 5. If no voltages are found on the above wires, A.
  • Page 31 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1023 FAULT MESSAGE BKT Stuck in Braking. Run Auto/Manual Test. Can’t Motor: Electrical Control Problem RESTRICTIONS Motoring Prohibited ALARM BELL 30 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 32 MEP 660 - Trouble shooting Manual a) Check up wire continuity of BKTM wire between BKT motoring side magnet valve coil and backside TB. Replace if open circuited. b) Check up wire continuity of BKTMCL from backside TB and MEP-660. Replace if open circuited.
  • Page 33 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1024 FAULT MESSAGE BKT-M Aux Contact ckt. Open. Run Auto/Manual Test. Can’t Motor: Electrical Control Problem. RESTRICTIONS Motoring Prohibited ALARM BELL 30 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 34 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1025 FAULT MESSAGE Alternator Output Voltage High FAULT RESTRICTIONS Motoring and Dynamic Brake Prohibited ALARM BELL 30 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 35 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1026 FAULT MESSAGE Alternator Output Current High FAULT in DB RESTRICTIONS Motoring and Dynamic Brake Prohibited ALARM BELL 30 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 36 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1027 FAULT MESSAGE Alternator Field Over Current fault. RESTRICTIONS Motoring and Dynamic Brake Prohibited ALARM BELL 30 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 37 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1028 FAULT MESSAGE Exciter Field Over Current Fault. RESTRICTIONS Motoring and Dynamic Brake Prohibited ALARM BELL 30 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 38 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1029 FAULT MESSAGE Cranking Contactor CK Stuck Closed. RESTRICTIONS Motoring Prohibited. Dynamic Brake Prohibited. ALARM BELL Continuous RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 39 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1030 FAULT MESSAGE SLBR / SLBC Contactor Stuck Closed. RESTRICTIONS Motoring Prohibited Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Low, Manual FAULT RECOVERY Autometic. When stuck condition is released as sensed through auxiliary contacts of SLBC1, SLBC2, SLBC3 and SLBC4.
  • Page 40 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1031 FAULT MESSAGE Wheel Number 1 Continuously Sliding RESTRICTIONS No restrictions. Warning only. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 41 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1033 FAULT MESSAGE Wheel Number 3 Continuously Sliding RESTRICTIONS No restrictions. Warning only. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 42 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1035 FAULT MESSAGE Wheel Number 5 Continuously Sliding RESTRICTIONS No restrictions. Warning only. ALARM BELL As long as Loco moves and for 30 Seconds minimum. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 43 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1037 FAULT MESSAGE Traction Motor 1 High Current While Motoring. RESTRICTIONS Tr. Motor No.1 is cutout and Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 44 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1038 FAULT MESSAGE Traction Motor 2 High Current While Motoring. RESTRICTIONS Tr. Motor No.2 is cutout and Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 45 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1039 FAULT MESSAGE Traction Motor 3 High Current While Motoring. RESTRICTIONS Tr. Motor No.3 is cutout and Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 46 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1040 FAULT MESSAGE Traction Motor 4 High Current While Motoring. RESTRICTIONS Tr. Motor No.4 is cutout and Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 47 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1041 FAULT MESSAGE Traction Motor 5 High Current While Motoring. RESTRICTIONS Tr. Motor No.5 is cutout and Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 48 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1042 FAULT MESSAGE Traction Motor 6 High Current While Motoring. RESTRICTIONS Tr. Motor No.6 is cutout and Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 49 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1043 FAULT MESSAGE Traction Motor 1 High Current While in Dynamic Brake. RESTRICTIONS Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 50 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1044 FAULT MESSAGE Traction Motor 2 High Current While in Dynamic Brake. RESTRICTIONS Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 51 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1045 FAULT MESSAGE Traction Motor 3 High Current While in Dynamic Brake. RESTRICTIONS Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 52 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1046 FAULT MESSAGE Traction Motor 4 High Current While in Dynamic Brake. RESTRICTIONS Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 53 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1047 FAULT MESSAGE Traction Motor 5 High Current While in Dynamic Brake. RESTRICTIONS Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 54 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1048 FAULT MESSAGE Traction Motor 6 High Current While in Dynamic Brake. RESTRICTIONS Dynamic brake is Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 55 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1049 FAULT MESSAGE High Current in Cutout Traction Motor 1. Can’t Load: Power Circuit Problem RESTRICTIONS Motoring and Dynamic brake are Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 56 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1050 FAULT MESSAGE High Current in Cutout Traction Motor 2. Can’t Load: Power Circuit Problem RESTRICTIONS Motoring and Dynamic brake are Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 57 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1051 FAULT MESSAGE High Current in Cutout Traction Motor 3. Can’t Load: Power Circuit Problem RESTRICTIONS Motoring and Dynamic brake are Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 58 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1052 FAULT MESSAGE High Current in Cutout Traction Motor 4. Can’t Load: Power Circuit Problem RESTRICTIONS Motoring and Dynamic brake are Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 59 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1053 FAULT MESSAGE High Current in Cutout Traction Motor 5. Can’t Load: Power Circuit Problem RESTRICTIONS Motoring and Dynamic brake are Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 60 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1054 FAULT MESSAGE High Current in Cutout Traction Motor 6. Can’t Load: Power Circuit Problem RESTRICTIONS Motoring and Dynamic brake are Prohibited. ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 61 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1055 FAULT MESSAGE Traction Motor 1 Ckt. Open. RESTRICTIONS Traction Motor 1 Cutout and Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 62 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1056 FAULT MESSAGE Traction Motor 2 Ckt. Open. RESTRICTIONS Traction Motor 2 Cutout and Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 63 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1057 FAULT MESSAGE Traction Motor 3 Ckt. Open. RESTRICTIONS Traction Motor 3 Cutout and Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 64 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1058 FAULT MESSAGE Traction Motor 4 Ckt. Open. RESTRICTIONS Traction Motor 4 Cutout and Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 65 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1059 FAULT MESSAGE Traction Motor 5 Ckt. Open. RESTRICTIONS Traction Motor 5 Cutout and Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 66 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1060 FAULT MESSAGE Traction Motor 6 Ckt. Open. RESTRICTIONS Traction Motor 6 Cutout and Dynamic Brake Prohibited ALARM BELL 30 Seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 67 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1061 FAULT MESSAGE Battery Voltage LOW Warning: Loco may STALL RESTRICTIONS ALARM BELL Continuously ON RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 68 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1062 FAULT MESSAGE Battery Voltage HIGH Fault RESTRICTIONS Battery charging prohibited. ALARM BELL Continuously ON RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 69 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1063 FAULT MESSAGE Aux. Gen. Field drive short circuit fault. RESTRICTIONS Battery charging prohibited. Warning: Battery life limited. Loco may stall. ALARM BELL 30 sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 70 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1064 FAULT MESSAGE Low Lube Oil Pressure RESTRICTIONS Engine Shutdown. ALARM BELL 30 sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 71 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1068 FAULT MESSAGE REV Stuck in Reverse. Run Auto/Manual Test RESTRICTIONS Forward Motoring and Forward Dynamic Brake Prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 72 MEP 660 - Trouble shooting Manual 7. The REV should operate to forward direction. The Green LED 14 on the digital input card MDIP16 in slot 10 should glow. 8. If REV is not operating to forward direction, Check supply at the REV forward side magnet valve coil.
  • Page 73 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1069 FAULT MESSAGE REV-F Aux. Contact ckt. Open. Run Auto/manual Test. RESTRICTIONS Forward Motoring and Forward Dynamic Brake Prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 74 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1070 FAULT MESSAGE REV Stuck in Forward. Run Auto/Manual Test RESTRICTIONS Reverse Motoring and Reverse Dynamic Brake Prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 75 MEP 660 - Trouble shooting Manual A. If supply is more than 60 volts, then magnet valve is defective. Replace the magnet valve. 12. If supply is zero, check the supply at the magnet valve coil terminal (wire no. 0) with respect to locomotive 4 wire.
  • Page 76 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1071 FAULT MESSAGE REV-R Aux. Contact ckt. Open. Run Auto/manual Test. RESTRICTIONS Reverse Motoring and Reverse Dynamic Brake Prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 77 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1072 FAULT MESSAGE Wrong Command: TL23 High & TL17 Low. Can’t Brake RESTRICTIONS Dynamic Brake Prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 78 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1073 FAULT MESSAGE Fire Alarm ON. Check Loco and MU Locos for fire and extinguish fire. RESTRICTIONS Engine Shutdown. ALARM BELL 30 sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 79 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1074 FAULT MESSAGE Field Shunting Relay FSR or FS Contactor FS2X Stuck Closed. RESTRICTIONS Motoring always with field shunting. Motoring in parallel prohibited. ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 80 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1075 FAULT MESSAGE Field Shunting Relay FSR circuit open. RESTRICTIONS Motoring with field shunting and Motoring in parallel prohibited. ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 81 MEP 660 - Trouble shooting Manual A. If the Voltage is more than 65V, check continuity of wire FSFB from FS 26 contactor Auxiliary contact to MEP-660. (Cable ID: AW, Pin-L). If necessary replace the cable. 13. If the Green LED is glowing and corresponding yellow LED is not glowing, the digital input card in slot 12 is defective.
  • Page 82 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1076 FAULT MESSAGE Loose Contact in S1 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM1 and TM4 are cut out in 2S-3P mode only. Dynamic brake prohibited.
  • Page 83 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1077 FAULT MESSAGE Loose Contact in S21 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM3 and TM6 are cut out in 2S-3P mode only. Dynamic brake prohibited.
  • Page 84 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1078 FAULT MESSAGE Loose Contact in S31 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM2 and TM5 are cut out in 2S-3P mode only. Dynamic brake prohibited.
  • Page 85 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1079 FAULT MESSAGE Loose Contact in P1 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM4 is cut out in 6P mode only. Dynamic brake prohibited. ALARM BELL...
  • Page 86 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1080 FAULT MESSAGE Loose Contact in P21 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM6 is cut out in 6P mode only. Dynamic brake prohibited. ALARM BELL...
  • Page 87 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1081 FAULT MESSAGE Loose Contact in P31 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM5 is cut out in 6P mode only. Dynamic brake prohibited. ALARM BELL...
  • Page 88 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1082 FAULT MESSAGE Loose Contact in P2 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM1 is cut out in 6P mode only. Dynamic brake prohibited. ALARM BELL...
  • Page 89 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1083 FAULT MESSAGE Loose Contact in P22 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM3 is cut out in 6P mode only. Dynamic brake prohibited. ALARM BELL...
  • Page 90 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1084 FAULT MESSAGE Loose Contact in P32 circuit. Run Auto/Manual Test Power Limited: Power Circuit Problem RESTRICTIONS TM2 is cut out in 6P mode only. Dynamic brake prohibited. ALARM BELL...
  • Page 91 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1085 FAULT MESSAGE P1 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in series prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 92 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1086 FAULT MESSAGE P21 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in series prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 93 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1087 FAULT MESSAGE P31 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in series prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 94 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1088 FAULT MESSAGE P2 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in series prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 95 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1089 FAULT MESSAGE P22 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in series prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 96 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1090 FAULT MESSAGE P32 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in series prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 97 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1091 FAULT MESSAGE S1 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in parallel prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 98 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1092 FAULT MESSAGE S21 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in parallel prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 99 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1093 FAULT MESSAGE S31 stuck closed. Run Auto/manual test. RESTRICTIONS Motoring in parallel prohibited ALARM BELL 30 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 100 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1094 FAULT MESSAGE Field Shunting Contactor FS21/FS24 Circuit Open. RESTRICTIONS Field Shunting Prohibited, Motoring in PARALLEL Prohibited ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 101 MEP 660 - Trouble shooting Manual 15. Check the FSR cables connected between FSR resistors and REV. Replace any open circuited cables. Note: This Error message will be generated only if either “Series Field Shunting” or “Parallel Field Shunting” ENABLED flags are set (√).
  • Page 102 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1095 FAULT MESSAGE Field Shunting Contactor FS22/FS25 Circuit Open. RESTRICTIONS Field Shunting Prohibited, Motoring in PARALLEL Prohibited ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 103 MEP 660 - Trouble shooting Manual 15. Check the FSR cables connected between FSR resistors and REV. Replace any open circuited cables. Note: This Error message will be generated only if either “Series Field Shunting” or “Parallel Field Shunting” ENABLED flags are set (√).
  • Page 104 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1096 FAULT MESSAGE Field Shunting Contactor FS23/FS26 Circuit Open. RESTRICTIONS Field Shunting Prohibited, Motoring in PARALLEL Prohibited ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 105 MEP 660 - Trouble shooting Manual Check the FSR cables connected between FSR resistors and REV. Replace any open circuited cables. Note: This Error message will be generated only if either “Series Field Shunting” or “Parallel Field Shunting” ENABLED flags are set (√).
  • Page 106 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1097 FAULT MESSAGE Traction Alternator out put short ckt. fault RESTRICTIONS Motoring and dynamic brake prohibited ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 107 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1102 FAULT MESSAGE P2 Stuck Closed without Aux Contact ON. Check if Contact welded. RESTRICTIONS Series Motoring & Dynamic Braking. ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 108 MEP 660 - Trouble shooting Manual check for any welding symptoms of power contactor tips. Clean the tips and ensure the control air pressure is set to 5 Kgs./cm. Sq. Doc No.: IM – 51 Rev.2.0 Print: October 2008...
  • Page 109 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1103 FAULT MESSAGE P32 Stuck Closed without Aux Contact ON. Check if Contact welded. RESTRICTIONS Series Motoring & Dynamic Braking. ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 110 MEP 660 - Trouble shooting Manual Note: This fault can be sometimes transient. If no trouble is found, check for any welding symptoms of power contactor tips. Clean the tips and ensure the control air pressure is set to 5 Kgs./cm. Sq.
  • Page 111 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1104 FAULT MESSAGE P22 Stuck Closed without Aux Contact ON. Check if Contact welded. RESTRICTIONS Series Motoring & Dynamic Braking. ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 112 MEP 660 - Trouble shooting Manual Note: This fault can be sometimes transient. If no trouble is found, check for any welding symptoms of power contactor tips. Clean the tips and ensure the control air pressure is set to 5 Kgs./cm. Sq.
  • Page 113 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1105 FAULT MESSAGE P1 Stuck Closed without Aux Contact ON. Check if Contact welded. RESTRICTIONS Series Motoring & Dynamic Braking. ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 114 MEP 660 - Trouble shooting Manual Note: This fault can be sometimes transient. If no trouble is found, check for any welding symptoms of power contactor tips. Clean the tips and ensure the control air pressure is set to 5 Kgs./cm. Sq.
  • Page 115 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1106 FAULT MESSAGE P31 Stuck Closed without Aux Contact ON. Check if Contact welded. RESTRICTIONS Series Motoring & Dynamic Braking. ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 116 MEP 660 - Trouble shooting Manual Note: This fault can be sometimes transient. If no trouble is found, check for any welding symptoms of power contactor tips. Clean the tips and ensure the control air pressure is set to 5 Kgs./cm. Sq.
  • Page 117 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1107 FAULT MESSAGE P21 Stuck Closed without Aux Contact ON. Check if Contact welded. RESTRICTIONS Series Motoring & Dynamic Braking. ALARM BELL 30 seconds RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 118 MEP 660 - Trouble shooting Manual Note: This fault can be sometimes transient. If no trouble is found, check for any welding symptoms of power contactor tips. Clean the tips and ensure the control air pressure is set to 5 Kgs./cm. Sq.
  • Page 119 MEP 660 - Trouble shooting Manual 3.0. MEDIUM PRIORITY FAULTS PARAMETER DESCRIPTION FAULT CODE 1118 FAULT MESSAGE Excess Traction Motor 1 Current. Maximum TM current limited. RESTRICTIONS Maximum TM Current LIMITED. ALARM BELL 5 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 120 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1120 FAULT MESSAGE Excess Traction Motor 3 Current. Maximum TM current limited. RESTRICTIONS Maximum TM Current LIMITED. ALARM BELL 5 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 121 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1122 FAULT MESSAGE Excess Traction Motor 5 Current. Maximum TM current limited. RESTRICTIONS Maximum TM Current LIMITED. ALARM BELL 5 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 122 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1124 FAULT MESSAGE S1 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/3 times of such faults while motoring in 2S-3P mode.
  • Page 123 MEP 660 - Trouble shooting Manual valve coil terminal (Cable ID: AY, Pin-G). If necessary replace the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective.
  • Page 124 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1125 FAULT MESSAGE S21 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/3 times of such faults while motoring in 2S-3P mode.
  • Page 125 MEP 660 - Trouble shooting Manual valve coil terminal (Cable ID: AY, Pin-H). If necessary replace the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective.
  • Page 126 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1126 FAULT MESSAGE S31 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/3 times of such faults while motoring in 2S-3P mode.
  • Page 127 MEP 660 - Trouble shooting Manual valve coil terminal (Cable ID: AY, Pin-K). If necessary replace the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective.
  • Page 128 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1127 FAULT MESSAGE P1 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/6 times of such faults while motoring in 6P mode.
  • Page 129 MEP 660 - Trouble shooting Manual valve coil terminal (Cable ID: AY, Pin-A). If necessary replace the cable. C. If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective.
  • Page 130 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1128 FAULT MESSAGE P21 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/6 times of such faults while motoring in 6P mode.
  • Page 131 MEP 660 - Trouble shooting Manual valve coil terminal (Cable ID: AY, Pin-B). If necessary replace the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective.
  • Page 132 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1129 FAULT MESSAGE P31 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/3 times of such faults while motoring in 6P mode.
  • Page 133 MEP 660 - Trouble shooting Manual valve coil terminal (Cable ID: AY, Pin-C). If necessary replace the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective.
  • Page 134 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1130 FAULT MESSAGE P2 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/6 times of such faults while motoring in 6P mode.
  • Page 135 MEP 660 - Trouble shooting Manual the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective. Replace the card. 10. If P2 is picking up, check the status of Green LED 6 on the digital input card 2 in slot 10.
  • Page 136 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1131 FAULT MESSAGE P22 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/6 times of such faults while motoring in 6P mode.
  • Page 137 MEP 660 - Trouble shooting Manual valve coil terminal (Cable ID: AY, Pin-E). If necessary replace the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No. 14 is defective.
  • Page 138 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1132 FAULT MESSAGE P32 stuck open. Run Auto/manual test. Power Limited. Power circuit problem RESTRICTIONS Reference power is reduced by 1/6 times of such faults while motoring in 6P mode.
  • Page 139 MEP 660 - Trouble shooting Manual b) Check the continuity of P32CL wire from MEP-660 to magnet valve coil terminal (Cable ID: AY, Pin-F). If necessary replace the cable. c) If the continuity is good and there is no slackness in connector, then the digital output card MLSD 16 in slot No.
  • Page 140 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1133 FAULT MESSAGE EXPR circuit open. Run Auto / manual test May not power up. RESTRICTIONS ALARM BELL 5 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 141 MEP 660 - Trouble shooting Manual necessary replace the cable. 8. If the Green LED 2 is glowing and corresponding Yellow LED is not glowing. The digital input card MDIP 16 in slot 11 is defective replace the card and check once again.
  • Page 142 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1134 FAULT MESSAGE AGPR circuit open. Run Auto/manual test Batteries may not charge. RESTRICTIONS ALARM BELL 5 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 143 MEP 660 - Trouble shooting Manual B. If connector is tight, check the continuity of the wire AGPRFB from EXPR relay interlock to MEP-660 (Cable ID: AV Pin-D). If necessary replace the cable. C. If the Green LED 3 is glowing and corresponding Yellow LED is not glowing, the digital input card MDIP 16 in slot 11 is defective replace the card and check once again.
  • Page 144 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1135 FAULT MESSAGE Wrong command. TL8 & TL0 High. RESTRICTIONS Cannot change direction ALARM BELL 5 seconds RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 145 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1136 FAULT MESSAGE BKT Stuck in Motoring. Run Auto/Manual Test Can't Brake: Electrical Control Problem RESTRICTIONS Dynamic Brake Prohibited ALARM BELL 5 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 146 MEP 660 - Trouble shooting Manual slack (cable ID: AY). Tighten the connector and check the voltage again. 2) If voltage is still zero, check the continuity of BKBCL wire from the magnet valve to MEP-660 (Cable ID: Pin No.L). If necessary replace the cable and check the voltage once again.
  • Page 147 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1137 FAULT MESSAGE BKT-B Aux. Contact ckt. Open. Run Auto/Manual Test Can’t Brake: Electrical Control Problem. RESTRICTIONS Dynamic Brake Prohibited ALARM BELL 5 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 148 MEP 660 - Trouble shooting Manual the contact position A. Check the voltage at BKT-Auxiliary contact wire No. 51 with respect to Locomotive 4 wire. B. If the Voltage is zero, check the continuity of 51-wire loop connecting to BKT-B auxiliary contact. Identify the open circuited wire/ wrong connection and rectify.
  • Page 149 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1138 FAULT MESSAGE Direction reversal attempted at High Speed. Can’t Change Direction RESTRICTIONS Motoring and Dynamic Brake Prohibited ALARM BELL 5 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 150 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1139 FAULT MESSAGE Invalid Notch Command. Running at IDLE/Notch 1 RESTRICTIONS Engine speed is brought to IDLE ALARM BELL 5 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 151 MEP 660 - Trouble shooting Manual 10. If the Green LEDs are glowing normal as per the sequence, the previous master controller is defective. Change the master controller. 11. If the same Green LED is not glowing in sequence A. Check the supply at the backside panel for particular train line wire.
  • Page 152 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1140 FAULT MESSAGE Cranking Contactor Stuck Open. Engine may not Crank. RESTRICTIONS ALARM BELL 5 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 153 MEP 660 - Trouble shooting Manual a) Connector of the cable ID: AY is slack at MEP-660. Tighten the connector. b) Check the continuity of wire CKCCL from CKC coil to MEP660. (Pin-R, Cable: AY) if necessary replace the cable.
  • Page 154 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1141 FAULT MESSAGE Aux. Gen. Output Voltage High FAULT RESTRICTIONS Battery charging ALARM BELL 5 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 155 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1142 FAULT MESSAGE Battery Charging Current High FAULT. RESTRICTIONS Battery charging ALARM BELL 5 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 156 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1143 FAULT MESSAGE Aux. Gen. Output Over current FAULT RESTRICTIONS Battery charging ALARM BELL 5 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 157 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1144 FAULT MESSAGE Aux. Gen. Field Over Current FAULT RESTRICTIONS Battery charging ALARM BELL 5 Sec. RESET LEVEL Medium, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 158 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1145 FAULT MESSAGE Auxiliary Generator Output Circuit Open FAULT No Battery Charging. Warning: Battery Life Limited. Loco may STALL. RESTRICTIONS Battery charging. ALARM BELL 5 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 159 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1146 FAULT MESSAGE Aux. Gen. Field Circuit Open or Short. No Battery Charging. Warning: Battery Life Limited. Loco may STALL. RESTRICTIONS Battery charging. ALARM BELL 5 Sec. RESET LEVEL Low, Manual After manual reset if the fault still present, the fault will be generated again.
  • Page 160 MEP 660 - Trouble shooting Manual the AGFI current sensor. 14. If voltage at AGC (AGFI) is more than 65V, check the voltage AGF backside TB and locomotive 4 wire. A. If the voltage is zero, a) Wire-AGC from AGFI to AGPR interlock is open circuited.
  • Page 161 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1147 FAULT MESSAGE AUX EEPROM Faulty. All AUX Faults Cleared. RESTRICTIONS ALARM BELL RESET LEVEL HIGH, Manual FAULT RECOVERY PROBABLE System detected fault while writing the faults on EEPROM CAUSES...
  • Page 162 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1150 FAULT MESSAGE VCD Circuit Open. Run Auto/Manual Test. Alerter Brake might be applied. Loco may not move. RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present even when cleared manually, the fault will be generated again.
  • Page 163 MEP 660 - Trouble shooting Manual D. If still green LED 11 is not glowing, MDIP 16 card might be defective. Replace the card and check up. 9. If the Green LED 11 is glowing and corresponding Yellow LED is not glowing, then also the MDIP 16 card is defective.
  • Page 164 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1151 FAULT MESSAGE AFLR Stuck Closed. Run Auto/Manual Test. Flasher Light might not glow if Train parting occurs. RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present even when cleared manually, the fault will be generated again.
  • Page 165 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1152 FAULT MESSAGE AFLR Circuit Open. Run Auto/Manual Test. Remove AFLR Relay to stop Buzzer & Flasher Light glowing. RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present even when cleared manually, the fault will be generated again.
  • Page 166 MEP 660 - Trouble shooting Manual to the connector pin-N. If necessary replace the cable. C. If the Green LED is not glowing still the digital input card MDIP16 in slot No. 12 might be defective. Replace the card and check up.
  • Page 167 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1153 FAULT MESSAGE VCD Applied Penalty Brake. Move Master Controller Handle to IDLE and press Reset to release Brake. RESTRICTIONS Motoring not permitted till the master handle is brought to IDLE and loco speed is dropped to zero and blinking LED should stop.
  • Page 168 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1155 FAULT MESSAGE DEB Engine Breaker Off. RESTRICTIONS Only indication, there is no restriction. ALARM BELL 30 seconds. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 169 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1156 FAULT MESSAGE DEB Car body Breaker Off. RESTRICTIONS Only indication, there is no restriction. ALARM BELL 30 seconds. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 170 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1157 FAULT MESSAGE SLBR ckt Open. Run Auto/Manual Tests RESTRICTIONS No Self-load box test ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 171 MEP 660 - Trouble shooting Manual necessary. 3. If SLBR is in pickd up condition and any of the SLBC contactor is not picked up, concerned SLBR interlock is bad or 13SLB wire loop is missing. Identify and rectify. 4. If the SLBR relay and all SLBC contactors are picking up, then check the voltage between wire 51 at SLBC interlocks and wire 4 of locomotive.
  • Page 172 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1158 FAULT MESSAGE AEB Applied Brake Move master controller Handle to IDLE And Press AEB Reset to release Brake RESTRICTIONS Motoring not permitted till the master handle is brought to IDLE and loco speed is dropped below 10 Kmph (set value).
  • Page 173 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1159 FAULT MESSAGE Engine Speed Sensor1 faulty. Running with MCBG communication RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 174 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1160 FAULT MESSAGE Engine Speed Sensor 2 faulty. RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 175 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1165 FAULT MESSAGE BKT Contact Open for Traction Motor 1 in Dynamic Braking RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 176 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1166 FAULT MESSAGE BKT Contact Open for Traction Motor 2 in Dynamic Braking RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 177 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1167 FAULT MESSAGE BKT Contact Open for Traction Motor 3 in Dynamic Braking RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 178 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1168 FAULT MESSAGE BKT Contact Open for Traction Motor 4 in Dynamic Braking RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 179 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1169 FAULT MESSAGE BKT Contact Open for Traction Motor 5 in Dynamic Braking RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 180 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1170 FAULT MESSAGE BKT Contact Open for Traction Motor 6 in Dynamic Braking RESTRICTIONS ALARM BELL 5 sec. RESET LEVEL LOW, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 181 MEP 660 - Trouble shooting Manual 4.0. LOW PRIORITY FAULTS PARAMETER DESCRIPTION FAULT CODE 1173 FAULT MESSAGE Alternator Voltage Sensor Faulty RESTRICTIONS Warning only ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 182 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1174 FAULT MESSAGE EP Analogue DB Power Supply FAULTY RESTRICTIONS Warning only ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 183 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1175 FAULT MESSAGE Alternator Field Current Sensor Faulty RESTRICTIONS Warning only ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 184 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1176 FAULT MESSAGE Exciter Field Current Sensor Faulty RESTRICTIONS Warning only ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 185 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1177 FAULT MESSAGE Engine Tacho Output Noisy RESTRICTIONS Warning only ALARM BELL RESET LEVEL High, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 186 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1179 FAULT MESSAGE MCU EEPROM Faulty. Default CFG record loaded RESTRICTIONS Warning only ALARM BELL RESET LEVEL High, Manual FAULT RECOVERY PROBABLE This fault will be logged while switching on the supply. Loco will work CAUSES with default parameters.
  • Page 187 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1181 FAULT MESSAGE WS EEPROM Faulty. Default CFG record loaded RESTRICTIONS Warning only ALARM BELL RESET LEVEL High, Manual FAULT RECOVERY PROBABLE This fault will be logged while switching ON power supply. Loco can CAUSES work with default parameters.
  • Page 188 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1183 FAULT MESSAGE Traction Alternator Current Sensor Faulty. RESTRICTIONS Dynamic brake prohibited ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 189 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1184 FAULT MESSAGE Frequency DB Power Supply FAULTY RESTRICTIONS Warning only ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 190 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1186 FAULT MESSAGE WS EEPROM Write Error at Power Off. Last WS Fault Cleared. RESTRICTIONS Warning only ALARM BELL RESET LEVEL High, Manual FAULT RECOVERY PROBABLE System is switched off while writing the fault message on the EEPROM.
  • Page 191 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1189 FAULT MESSAGE Traction motor 1 current sensor faulty RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 192 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1190 FAULT MESSAGE Traction motor 2 current sensor faulty RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 193 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1191 FAULT MESSAGE Traction motor 3 current sensor faulty RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 194 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1192 FAULT MESSAGE Traction motor 4 current sensor faulty RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 195 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1193 FAULT MESSAGE Traction motor 5 current sensor faulty RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 196 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1194 FAULT MESSAGE Traction motor 6 current sensor faulty RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 197 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1195 FAULT MESSAGE S1 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 198 MEP 660 - Trouble shooting Manual and rectify. B. If the voltage is more than 65V, check the voltage between S1FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact. b) If the voltage is more than 65V, 1) Check the slackness of the connector at the MEP660 control unit for the cable ID: AU.
  • Page 199 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1196 FAULT MESSAGE S21 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 200 MEP 660 - Trouble shooting Manual wiring and rectify. B. If the voltage is more than 65V, check the voltage between S21FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact.
  • Page 201 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1197 FAULT MESSAGE S31 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 202 MEP 660 - Trouble shooting Manual wiring and rectify. B. If the voltage is more than 65V, check the voltage between S31FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock / aux. Contact.
  • Page 203 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1198 FAULT MESSAGE P1 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 204 MEP 660 - Trouble shooting Manual and rectify. B. If the voltage is more than 65V, check the voltage between P1FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact. b) If the voltage is more than 65V, 1) Check the slackness of the connector at the MEP660 control unit for the cable ID: AU.
  • Page 205 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1199 FAULT MESSAGE P21 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 206 MEP 660 - Trouble shooting Manual wiring and rectify. B. If the voltage is more than 65V, check the voltage between P21FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact.
  • Page 207 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1200 FAULT MESSAGE P31 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 208 MEP 660 - Trouble shooting Manual wiring and rectify. B. If the voltage is more than 65V, check the voltage between P31FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact.
  • Page 209 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1201 FAULT MESSAGE P2 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 210 MEP 660 - Trouble shooting Manual and rectify. B. If the voltage is more than 65V, check the voltage between P2FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact. b) If the voltage is more than 65V, 1) Check the slackness of the connector at the MEP660 control unit for the cable ID: AU.
  • Page 211 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1202 FAULT MESSAGE P22 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 212 MEP 660 - Trouble shooting Manual wiring and rectify. B. If the voltage is more than 65V, check the voltage between P22FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact.
  • Page 213 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1203 FAULT MESSAGE P32 Auxiliary Contact Stuck Open. Run Auto/Manual Test RESTRICTIONS Dynamic braking ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 214 MEP 660 - Trouble shooting Manual wiring and rectify. B. If the voltage is more than 65V, check the voltage between P32FB and locomotive 4 wire. a) If the voltage is zero, the interlock is bad. Replace the interlock/aux. Contact.
  • Page 215 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1204 FAULT MESSAGE EXPR Stuck Closed. Run Auto/Manual Test RESTRICTIONS Cranking prohibited ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 216 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1205 FAULT MESSAGE AGPR Stuck Closed. Run Auto/Manual Test RESTRICTIONS Cranking prohibited ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 217 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1206 FAULT MESSAGE GF Stuck Closed. Run Auto/Manual Test RESTRICTIONS None ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 218 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1207 FAULT MESSAGE Low Battery Voltage Engine may not Crank RESTRICTIONS None ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 219 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1208 FAULT MESSAGE GF Auxiliary Contact 1 Circuit OPEN FAULT RESTRICTIONS None ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 220 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1209 FAULT MESSAGE GF Auxiliary Contact 2 Circuit OPEN FAULT RESTRICTIONS None ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 221 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1210 FAULT MESSAGE Engine Shut Down due to OST Tripping Check OST before restarting Engine. RESTRICTIONS ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 222 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1212 FAULT MESSAGE AUX EEPROM Faulty. Default CFG record loaded RESTRICTIONS Warning only ALARM BELL RESET LEVEL High, Manual FAULT RECOVERY PROBABLE This fault will be logged while switching on the supply. Loco will work CAUSES with default parameters.
  • Page 223 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1214 FAULT MESSAGE Aux. Analogue DB Power Supply FAULTY RESTRICTIONS Warning only ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 224 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1215 FAULT MESSAGE Main Reservoir Pressure Sensor Faulty. Air Compressor pumps continuously RESTRICTIONS Warning only ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 225 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1216 FAULT MESSAGE AUX. EEPROM Write Error at Power Off. Last AUX Fault Cleared. RESTRICTIONS Warning only ALARM BELL RESET LEVEL High, Manual FAULT RECOVERY PROBABLE System is switched off while writing the fault message on the EEPROM.
  • Page 226 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1219 FAULT MESSAGE Loco Data Counters for the Trip are Faulty & they are Reset RESTRICTIONS Warning only ALARM BELL RESET LEVEL Medium Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 227 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1220 FAULT MESSAGE Battery Voltage Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 228 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1221 FAULT MESSAGE Aux. Gen. Voltage Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 229 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1222 FAULT MESSAGE Battery Charging Current Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 230 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1223 FAULT MESSAGE Aux. Gen. Output Current Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 231 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1224 FAULT MESSAGE Aux. Gen. Field Current Sensor Faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 232 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1225 FAULT MESSAGE Engine Water Temperature Sensor Faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 233 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1226 FAULT MESSAGE Lube Oil Temperature Sensor Faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 234 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1227 FAULT MESSAGE Air Temperature Sensor Faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 235 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1228 FAULT MESSAGE WRONG Engine RPM at Notch 1. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 236 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1229 FAULT MESSAGE WRONG Engine RPM at Notch 2. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 237 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1230 FAULT MESSAGE WRONG Engine RPM at Notch 3. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 238 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1231 FAULT MESSAGE WRONG Engine RPM at Notch 4. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 239 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1232 FAULT MESSAGE WRONG Engine RPM at Notch 5. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 240 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1233 FAULT MESSAGE WRONG Engine RPM at Notch 6. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 241 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1234 FAULT MESSAGE WRONG Engine RPM at Notch 7. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 242 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1235 FAULT MESSAGE WRONG Engine RPM at Notch 8. Solenoids AV, BV, CV, DV or Their Wiring faulty RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 243 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1236 FAULT MESSAGE Traction Motor 1 High Current to be Confirmed RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 244 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1239 FAULT MESSAGE Traction Motor 4 High Current to be Confirmed RESTRICTIONS Warning only. ALARM BELL RESET LEVEL Low, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 245 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1242 FAULT MESSAGE Speed sensor 1 faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 246 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1243 FAULT MESSAGE Speed sensor 2 faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 247 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1244 FAULT MESSAGE Speed sensor 3 faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 248 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1245 FAULT MESSAGE Speed sensor 4 faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 249 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1246 FAULT MESSAGE Speed sensor 5 faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 250 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1247 FAULT MESSAGE Speed sensor 6 faulty RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 251 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1248 FAULT MESSAGE One Detectors of Speed Sensor Faulty on Wheel 1 RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 252 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1249 FAULT MESSAGE One Detectors of Speed Sensor Faulty on Wheel 2 RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 253 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1250 FAULT MESSAGE One Detectors of Speed Sensor Faulty on Wheel 3 RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 254 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1251 FAULT MESSAGE One Detectors of Speed Sensor Faulty on Wheel 4 RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 255 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1252 FAULT MESSAGE One Detectors of Speed Sensor Faulty on Wheel 5 RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 256 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1253 FAULT MESSAGE One Detectors of Speed Sensor Faulty on Wheel 6 RESTRICTIONS ALARM BELL RESET LEVEL Medium, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 257 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1254 FAULT MESSAGE Altitude Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again. FAULT Automatic when the Altitude sensor found working normal.
  • Page 258 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1255 FAULT MESSAGE Memory Card of Event Recorder Faulty RESTRICTIONS ALARM BELL RESET LEVEL Automatic when system detected as new memory card loaded for event recording. FAULT LOW, Manual RECOVERY If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 259 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1261 FAULT MESSAGE Brake Cylinder Pr. Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 260 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1262 FAULT MESSAGE Lube Oil Pr. Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 261 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1263 FAULT MESSAGE Booster Air Pr. Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 262 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 1264 FAULT MESSAGE Fuel Oil Pr. Sensor Faulty RESTRICTIONS ALARM BELL RESET LEVEL MEDIUM, Manual If the fault condition is still present when cleared manually, the fault will be generated again.
  • Page 263 MEP 660 - Trouble shooting Manual ONLY ERROR LOG MESSAGES PARAMETER DESCRIPTION FAULT CODE 2500 FAULT MESSAGE P1 Stuck Closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1085 CAUSES FAULT Refer fault code 1085...
  • Page 264 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2503 FAULT MESSAGE P2 Stuck Closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1088 CAUSES FAULT Refer fault code 1088 ISOLATION DESCRIPTION PARAMETER...
  • Page 265 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2506 FAULT MESSAGE S1 Stuck Closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1091 CAUSES FAULT Refer fault code 1091 ISOLATION PARAMETER DESCRIPTION...
  • Page 266 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2513 FAULT MESSAGE GF Stuck Closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1206 CAUSES FAULT Refer fault code 1206 ISOLATION PARAMETER DESCRIPTION...
  • Page 267 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2516 FAULT MESSAGE R1 Stuck Closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE 1. Defective R1 contactor CAUSES 2. Defective wiring. FAULT Most probably this fault can be logged due to delayed drop out of the ISOLATION contactor.
  • Page 268 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2518 FAULT MESSAGE GF2 Stuck Closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1206 CAUSES FAULT Refer fault code 1206 ISOLATION PARAMETER DESCRIPTION...
  • Page 269 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2520 FAULT MESSAGE SANDR Stuck Closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE 1. Defective Sander relay CAUSES 2. Defective MLSD16 card. FAULT 1. Check the status of the Green LED 12 on digital input card MDIP16 ISOLATION in slot No.
  • Page 270 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2524 FAULT MESSAGE FSR / FS21 to FS26 Contactor Stuck closed in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1074 CAUSES FAULT Refer fault code 1074...
  • Page 271 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2528 FAULT MESSAGE SLBR / SLBC Contactor Stuck Closed in Auto Test. RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1030 CAUSES FAULT Refer fault code 1030...
  • Page 272 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2534 FAULT MESSAGE P31 Stuck open in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1129 CAUSES FAULT Refer fault code 1129 ISOLATION PARAMETER DESCRIPTION...
  • Page 273 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2537 FAULT MESSAGE P32 Stuck open in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1132 CAUSES FAULT Refer fault code 1132 ISOLATION PARAMETER DESCRIPTION...
  • Page 274 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2540 FAULT MESSAGE S31 Stuck open in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1126 CAUSES FAULT Refer fault code 1126 ISOLATION PARAMETER DESCRIPTION...
  • Page 275 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2548 FAULT MESSAGE R1 Stuck Open in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE 1. Defective R1 contactor CAUSES 2. Defective wiring. FAULT Most probably this fault can be logged due to delayed Pick up of the ISOLATION contactor.
  • Page 276 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2550 FAULT MESSAGE GF2 Stuck Open in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1018 CAUSES FAULT Refer fault code 1018 ISOLATION PARAMETER DESCRIPTION...
  • Page 277 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2552 FAULT MESSAGE SANDR circuit Open in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE 1. Defective SANDR relay CAUSES 2. Defective MLSD16 card. FAULT 1. Check the status of the Green LED 12 on digital input card MDIP16 ISOLATION in slot No.
  • Page 278 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2556 FAULT MESSAGE FSR / FS21 to FS26 Contactor Stuck Open in Auto Test RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1075 CAUSES FAULT Refer fault code 1075...
  • Page 279 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2560 FAULT MESSAGE SLBR circuit Open in Auto Test. RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1057 CAUSES FAULT Refer fault code 1057 ISOLATION PARAMETER DESCRIPTION...
  • Page 280 MEP 660 - Trouble shooting Manual PARAMETER DESCRIPTION FAULT CODE 2581 FAULT MESSAGE VCD Applied Penalty Brake Move master controller Handle to IDLE Press Reset to release Brake. RESTRICTIONS ALARM BELL RESET LEVEL FAULT RECOVERY PROBABLE Refer fault code 1153...
  • Page 281 1. Engine RPM suddenly drops below 200 rpm, due to external CAUSES reasons like OSTA, rack jam, LLOB trip etc. 2. Engine RPM signal not received by MEP 660 due to A. Incorrect air gap between cam gear teeth and sensor tip. B. ESS defective C.
  • Page 282 Fault reset: For most of the faults, automatic recognition of fault recovery is provided. When a fault occurs, the MEP 660 system identifies the fault recovery conditions and announces recovery for the fault through a display message and automatically removes all restrictions imposed on the loco operation due to that fault.
  • Page 283 Access Level High: The access level is only for very few faults where, in depth knowledge of locomotive equipment as well as knowledge of MEP 660 system is necessary. These faults can be cleared only through a LAPTOP PC connected to the MEP 660 system and they cannot be cleared through display unit.
  • Page 284 MEP 660 - Trouble shooting Manual Annexure - 2 Control Unit Type MEP 660 {Slot 1 to slot 19 (L to R)} Slot 1 Analog input card Type - MAIP8_AU Slot 2 Analog input card Type - MIAI Slot 3 Control card Type –...
  • Page 285 MEP 660 - Trouble shooting Manual Annexure – 3 Digital input status shown with all breakers ON and master handles in IDLE, BKT in motoring and Reverser in Forward and air brake system working normal. – PCS and PCS1 Status depend on Air brake. Rect. Blo Fail & Rect. Hot status depends on type of rectifier...
  • Page 286 MEP 660 - Trouble shooting Manual Annexure – 3 Card level input status LEDS Card level input status LEDS CEB FB AFLRST SPAR PSH4 DEB-Car. SPAR PSH1 SLBC FB DEB-Eng. PSH2 AFLRFB PSH3 PCS1 HL Dim ALRTRB W171 AGFB FL FB...
  • Page 287 MEP 660 - Trouble shooting Manual Annexure - 4 List Digital output Cable IDs and Pin connections. Out put device D.O. Wire D.O Card Slot Cable Connect Chann or on CU P1 Coil DO 00 P1CL P21 Coil DO 01...
  • Page 288 MEP 660 - Trouble shooting Manual Out put device D.O. Wire D.O Card Slot Cable Connect Chann or on CU Over load LED DO 39 AFL LED DO 40 ALERTER LED DO 41 MMF LED DO 42 Spare Spare Spare...
  • Page 289 MEP 660 - Trouble shooting Manual Revesion sheet 1. Document changes from Rev. 1 to Rev.2 a. Fault messages changed from Rev. 1: 1118, 1119, 1120, 1121, 1122 and 1123 – Text message “Traction Motor 1 HOT. Maximum TM Current LIMITED.” is changed to ‘Excess Traction Motor x Current.

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