Tomberlin 2010 E-Merge Maintenance Manual page 106

20 CURRENT SENSE FAULT
21 M- SHORTED
22
15 VOLT FAULT
23
DRIVER OVERCURRENT
24
PRECHARGE FAULT
25
FIELD MISSING
26 HW FAILSAFE
Picture 1、1268 controller programmer faulty code table
二、LED failure diagnosis
There is LED on the controller，you can see it from the window on the top of controller cover.
When there is any fault on the controller or the input then it will display the failure indication code.
When it work , the LED will flicker steadily; if it inspect some failure, the dibit indicator will keep
flickering until the trouble was eliminated. Such as if the code"3、2" main contactor is welded, it
display as below.
¤ ¤ ¤ ¤ ¤
(3,2)
Code list ：
LED code
LED all off
All on ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤ ¤
1,1 ¤ ¤
1,2 ¤ ¤¤
Excitation currency sensor
failure
Inner M-is short circuit to B-
15V voltage is out of range
Over currency
contactor or auxiliary one
Inner voltage is too low
during start
Excitation damage
Automatic checking failure
¤ ¤ ¤ ¤ ¤
(3,2)
symbol
MERGE 10-16
Troubleshooting
2、 Choose wont type of SRO
3、 Interlock or direction switch
is open circuit
4、 Order delay is too short
1、controller is broken
1、controller is broken
1、 Controller is broken
2、 Seton of exterior circuit
1 、 main contactor or auxiliary
on main
contactor is short circuit
1、 Controller is broken
2、 Out B- is short to B+ or leak
power
1、 Motor field cable come off
2、 Motor field cable is open
1、controller is broken
¤ ¤ ¤ ¤ ¤
description
No power or the controller was broken
Problem one the micro processor in the
controller
Controller was broken
The sliding signal of accelerator is
outside the scope
Chapter 10
(3,2)