INSTALLATION AND OPERATION
SX TRANSISTOR CONTROL
Page
29
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-81
No tachometer signal is detected.
This status code will be displayed when no
tachometer signal is detected.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Vehicle’s speed will limited to about
half of the normal speed.
POSSIBLE CAUSE
Defective tachometer.
Replace tachometer unit
Defective wiring between tachometer
and the control.
Check and repair wiring as required.
Stalled motor
Cycle key switch off then on.
L
P9
P7
P8
P1
P17
P2
P6
P4
P5
T
U
R
F
SW
.
F
O
R
W
AR
D
SW
.
R
EVER
SE
SW
.
ACC POT
TACHOMETER
P15 P14 P16
P10
BU
Z
Z
ER
R
ED
G
R
EEN
BL
AC
K
P3
N
EG
I
N
PU
T
ST
AR
T
SW
.
P12
R
EG
EN
BR
AKE
SW
P21
M
O
T
O
R
O
VER
T
EM
P
+72V
+72V
+72V
+72V
+72V
+72V
+72V
P22
P23
P20
RS232
72V
NEG
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-82
If the armature current greater than 280 amps
for longer than 3.5 seconds in control mode, the
armature motoring current will be turned off.
This status code will be displayed when the armature current
exceeds 280 amps for 3.5 sec and the accelerator pedal is calling
for maximum performance in the control mode.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
The Control will not operate, and can only be
reset by cycling the key switch.
POSSIBLE CAUSE:
Continued operation of vehicle in
high motor current condition
Operating control at stall motor
current for more than 3.5 seconds.
Defective motor tachometer
Function 16 is incorrectly adjusted
for control % on time.
- Adjust function per OEM
instructions
L
P9
P7
P8
P1
P17
P2
P6
P4
P5
T
U
R
F
SW
.
F
O
R
W
AR
D
SW
.
R
EVER
SE
SW
.
ACC POT
TACHOMETER
P15 P14 P16
P10
BU
Z
Z
ER
R
ED
G
R
EEN
BL
AC
K
P3
N
EG
I
N
PU
T
ST
AR
T
SW
.
P12
R
EG
EN
BR
AKE
SW
P21
M
O
T
O
R
O
VER
T
EM
P
+72V
+72V
+72V
+72V
+72V
+72V
+72V
P22
P23
P20
RS232
72V
NEG
Updated Sept 2019