DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL Page 35
January 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.
POWER CONNECTIONS
LEFT CONTROL
POS A1 F1
NEG A2 F2
FIELD
ARMATURE
FU4
A1
A2
S1
S2
SP
+
-
FU1
POWER CONNECTIONS
RIGHT CONTROL
POS A1 F1
NEG A2 F2
FIELD
ARMATURE
L
P1 P17 P2 P6 P3 P4 P5
SEAT SW.
START SW.
FORWARD SW.
REVERSE
SW.
P23 P22P10 P13
SERIAL RECEIVE
SERIAL TRANSMIT
BDI INTERRUPT
P14 P15
I-MOTOR OUTPUT
BRAKESW.
STEER PUMP
FIELD
STEER PUMP
ARM
P11 P18
1A OR SP DVR
PLUG/RGN
OUTPUT
LEFT
CONTROL
(MASTER)
TO PUMP
CONTROL
POSITIVE
TO PUMP CONTROL POSITIVE
LINE
SPEED LIMIT SWITCH
FU3
KEY SWITCH
BRAKE SW.
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.
POWER CONNECTIONS
LEFT CONTROL
POS A1 F1
NEG A2 F2
FIELD
ARMATURE
FU4
A1
A2
S1
S2
SP
+
-
FU1
POWER CONNECTIONS
RIGHT CONTROL
POS A1 F1
NEG A2 F2
FIELD
ARMATURE
L
P1 P17 P2 P6 P3 P4 P5
SEAT SW.
START SW.
FORWARD SW.
REVERSE
SW.
P23 P22P10 P13
SERIAL RECEIVE
SERIAL TRANSMIT
BDI INTERRUPT
P14 P15
I-MOTOR OUTPUT
BRAKESW.
STEER PUMP
FIELD
STEER PUMP
ARM
P11 P18
1A OR SP DVR
PLUG/RGN
OUTPUT
LEFT
CONTROL
(MASTER)
TO PUMP
CONTROL
POSITIVE
TO PUMP CONTROL POSITIVE
LINE
SPEED LIMIT SWITCH
FU3
KEY SWITCH
BRAKE SW.
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