DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
20
July 2001
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-21
Accelerator voltage is too high.
This status code will be displayed when the
accelerator voltage at P7 is greater than 4.5
volts.
MEMORY RECALL
NO
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Accelerator input is mis-adjusted or defective.
Input voltage at P7 should be less than 4.5
volts after initial key switch closure.
Open wire exists between potentiometer
negative and P8.
Open wire exists between P7 and
potentiometer negative.
L
T
U
R
F
SP
EED
LIM
IT
SW
IT
C
H
*
KEY SWITCH *
ST
AR
T
SWIT
C
H
*
DIRECTIONAL
SWITCH *
FO
R
W
A
R
D
R
EVE
R
S
E
N.
C.
M
O
T
O
R
T
H
E
R
M
O
ST
AT
*
BU
Z
Z
ER
*
AU
X AC
C
E
L
POT
*
A
CCE
L
P
O
T
*
P1
P2 P3
P4
P5
P21 P11 P10
P15
T
A
C
H
O
M
ET
ER
*
P14
+12V
P16
P7 P9
P13 P8 P6
RE
D
GR
EEN
BL
AC
K
PLUG (23 PIN)
*
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-23
Motor field current is too high when the
start switch is closed and the reverse
direction is selected.
This status code will be displayed when the current
draw in the motor field is too high on start up in the
reverse direction.
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.
NO GRAPHIC FOR THIS
STATUS CODE