GE SX TRANSISTOR CONTROL IC3645SR4U404N2 - Manual (Page 33)

DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL Page 33
January 2000
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 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.
ST
AR
T
SW.
FOR
. S
W
.
R
EV.
SW.
P10
P18
PY7
PY12
PY10
PY11
SP
P1
P5
P4
P2
FU7
TO
ACCESSORIES
FU6 P3
OSCILLATOR CARD
LEFT CONTROL
FU1
STEER
ANGLE
POT
LINE
POWER
CONNECTIONS
LEFT CONTROL
POS A1 F1
NEG A2 F2 FIE
L
D
A
RM
A
T
URE
ACC POT
BDI INTERRUPT
+
-
SP
SP
FU4
A1
FU2
P
P
POWER
CONNECTIONS
RIGHT CONTROL
POS A1 F1
NEG F2
FIE
L
D
A
RM
A
T
URE
FU5
BRAKE SW.
A2
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-46
“Look Ahead” test for A2 volts less
than 12% of battery volts. This status code will be displayed when the voltage at
A2 is less than 12% of battery volts.
MEMORY RECALL
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor will not pick up.
POSSIBLE CAUSE
Check for short circuit from the motor armature
to the frame of the vehicle.
Defective control.
• = Replace controller unit.
KEY SWITCH
L
P7
P1 P17 P2 P6
P9
P3
P12 P8
P4 P5
SEAT
SW.
ST
AR
T
SW.
FOR
. S
W
.
R
EV.
SW.
P10
P18
PY7
PY12
PY10
PY11
SP
P1
P5
P4
P2
FU7
TO
ACCESSORIES
FU6 P3
OSCILLATOR CARD
LEFT CONTROL
FU1
STEER
ANGLE
POT
LINE
POWER
CONNECTIONS
LEFT CONTROL
POS A1 F1
NEG A2 F2 FIE
L
D
A
RM
A
T
URE
ACC POT
BDI INTERRUPT
+
-
SP
SP
FU4
A1
FU2
P
P
POWER
CONNECTIONS
RIGHT CONTROL
POS A1 F1
NEG F2
FIE
L
D
A
RM
A
T
URE
FU5
BRAKE SW.
A2