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DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL Page 32
January 2000
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-43
Motor armature offset voltage is too
low.
This status code will be displayed when the voltage at
the current sensor input is less than 2.4 volts with no
current flowing in the motor circuit.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Defective control.
•=Replace controller unit.
KEY SWITCH
L
P7
P1
P17
P2
P6
P9
P3
P12 P8
P4
P5
SEAT SW.
START SW.
FOR. SW.
REV.
SW.
P10
P18
PY7
PY12
PY10
PY11
SP
P1
P5
P4
P2
F
U
7
TO
ACCESSORIES
FU6
P3
OSCILLATOR CARD
LEFT CONTROL
FU1
STEER
ANGLE
POT
LINE
POWER
CONNECTIONS
LEFT CONTROL
POS
A1 F1
NEG A2
F2
FIELD
ARMATURE
ACC POT
BDI INTERRUPT
+
-
SP
SP
FU4
A1
FU2
P
P
POWER
CONNECTIONS
RIGHT CONTROL
POS A1 F1
NEG
F2
FIELD
ARMATURE
FU5
BRAKE SW.
A2
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
P7
P1
P17
P2
P6
P9
P3
P12 P8
P4
P5
SEAT SW.
START SW.
FOR. SW.
REV.
SW.
P10
P18
PY7
PY12
PY10
PY11
SP
P1
P5
P4
P2
F
U
7
TO
ACCESSORIES
FU6
P3
OSCILLATOR CARD
LEFT CONTROL
FU1
STEER
ANGLE
POT
LINE
POWER
CONNECTIONS
LEFT CONTROL
POS
A1 F1
NEG A2
F2
FIELD
ARMATURE
ACC POT
BDI INTERRUPT
+
-
SP
SP
FU4
A1
FU2
P
P
POWER
CONNECTIONS
RIGHT CONTROL
POS A1 F1
NEG
F2
FIELD
ARMATURE
FU5
BRAKE SW.
A2