
MEP 660 - Trouble shooting Manual
Doc No.: IM – 51
Rev.2.0
Print: October 2008
65
PARAMETER
DESCRIPTION
FAULT CODE
1061
FAULT MESSAGE Battery Voltage LOW
Warning: Loco may STALL
RESTRICTIONS
Nil
ALARM BELL
Continuously ON
RESET LEVEL
Low, Manual
After manual reset if the fault still present, the fault will be generated
again.
FAULT
RECOVERY
Automatic when the battery voltage is more than 62V for 5 seconds.
PROBABLE
CAUSES
This is a warning message indicating Batteries are getting discharged.
Normally this message is followed by
Fault message ‘Aux. Gen. output open circuited.’ Fault code 1145 or
Fault message ‘Aux. Gen Field circuit open / shorted’ Fault code 1146
FAULT
ISOLATION
1. If none of the above faults are logged, prior to this fault message:
A. Change the display mode to ‘Auxiliary’
B. Measure Voltage with a voltmeter at the BATV battery voltage
sensor (wire No. 51 and 4) and voltage at AGAV Voltage sensor
(wire No. 49 and 44D).
C. If the measured voltages are tallying with the displayed
parameters and really battery voltage is low and battery-
charging current is zero, Then RCD is open circuited. Replace
RCD.
D. If the measured battery voltage is higher than displayed voltage
the voltage sensor or its wiring is defect. Check and identify.
2. If the ‘Aux. Gen. output open circuited.’ Fault message is also
logged trouble shoot to find open circuit in the Aux. Gen. output
circuit. Refer Fault code 1145.
3. If Aux. Gen. Field Circuit open / Shorted’ message is also logged
trouble shoot to find open circuit in the Auxiliary Generator field
circuit. Refer fault log No. 1146. ‘Aux. Gen. Field Circuit Open or
Short’.