DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
25
April 1999
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
P1
P17 P2 P6
F
OOT
SW
.
P18
1A O
R
SP DVR
LEFT CONTROL (MASTER)
P12
LEFT 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
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-47
The PMT enable signal from the
opposite control dropped below 5V
during motoring.
This status code will be displayed when the voltage at
PL2-21 drops below 5V during motoring.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Auxiliary control shut down.
Check auxiliary control for stored faults.
Verify the connection between the master
control P21 and the auxiliary/slave control P11.
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