
MEP 660 - Trouble shooting Manual
Doc No.: IM – 51
Rev.2.0
Print: October 2008
27
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.
FAULT
RECOVERY
Autometic when master handle is brought to IDLE.
PROBABLE
CAUSES
Most probably this fault is an intermittent fault logged. The fault might
have recovered by the time it is tried to find out the reason. However if
the fault is continuously logging, it may be due to
1. Non-working control stand might not be in IDLE position.
2. Wrong interlocking of any one of the master controllers.
3. Locomotive is being controlled from two locomotives
simultaneously.
4. Wrong feed back of train line wires through MU cables.
5. Any wiring fault causing simultaneous energisation TL6 along with
TL17 or TL23 while operating Master Handle.
FAULT
ISOLATION
If the fault is cleared check the operation of the master controller
interlocks as follows:
1. Shut down the engine. Set the display mode to “Manual Test for
Inputs” under test menu. When prompted for input number Enter
07 + Enter Key to view the status of the Train Line wire TL6 on the
display.
2. Set the control stand to motoring mode. Operate the Master Handle
between IDLE to 1
st
notch two to three times. Observe the status of
the TL6 on the display. The staus of TL6 should toggle as per the
master handle position. Bring back the master handle to IDLE.
3. Press ‘down arrow’ key + 09 + ‘Enter’ key to check the status of
the train line wire TL17.
4. Set the Master Handle to Dynamic Brake set up position. Operate
the Master Handle between IDLE to OFF positions two to three
times. Observe the status of Train Line wire TL17 while moving the
Master Handle and ensure it is as per Master Handle position.
5. Press ‘down arrow’ key +10 + ‘Enter’ key to check the status of the
train line wire TL23.
6. Move the Master Handle between OFF position to Dynamic brake
position for two to three times and observe the status of TL23 wire.
It should follow the Master Handle movement.
7. Repeat the steps from 2 to 7 on the other control stand. This
ensures proper operation of the Master Handle interlocks.
If the fault is not cleared and continuously logging:
1. Remove the MU jumper cables to isolate wrong feed through MU
jumper cables.
2. If the fault is not rectified, keep both Master Handles in IDLE
position.
3. Check voltage on Train Line Wires TL6, TL17 and TL23 at the