DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
24
April 1999
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS
INDICATION
-44
Armature transistor did not turn off properly.
This status code will be displayed
when, during control operation, the
armature transistor fails to turn off.
This will result in a PMT condition.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor opens and closes, then can only be
closed by opening and closing the key switch.
POSSIBLE CAUSE
Defective control.
•
=
Replace controller unit.
KEY SWITCH
L
P1
P17 P2 P6
FO
O
T
SW
.
P18
1A
O
R
SP DVR
LEFT CONTROL (MASTER)
P12
L
E
F
T
T
URN SW
.
B
P10
3
1
2
FU3
DRIVER
BLOCK
FU1
LINE
+
12V
P21
P11
RIGHT
CONTROL
(SLAVE)
POWER CONNECTIONS
LEFT CONTROL
POS
A1
F1
NEG
A2
F2
FI
ELD
ARM
A
T
URE
+
-
-
48V
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-45
Armature transistor did not turn on
properly.
This status code will be displayed when, during
control operation, the armature transistor fails to turn
on properly. This will result in a PMT condition.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor open and closes, then can only
be closed by opening and closing the key
switch.
POSSIBLE CAUSE
Defective control.
•
=
Replace controller unit.
KEY SWITCH
L
P1
P17 P2 P6
F
OOT
SW
.
P18
1A O
R
SP DVR
LEFT CONTROL (MASTER)
P12
L
E
FT TURN SW
.
B
P10
3
1
2
FU3
DRIVER
BLOCK
FU1
LINE
+
12V
P21
P11
RIGHT
CONTROL
(SLAVE)
POWER CONNECTIONS
LEFT CONTROL
POS
A1
F1
NEG
A2
F2
FI
ELD
ARMATURE
+
-
-
48V