DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
28
April 1999
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-76
Capacitor (1C) voltage too high.
This status code will be displayed when the voltage
on the capacitor goes above limit voltage* during the
regenerative braking cycle.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor opens and closes, then opens
and can only close by opening and closing the
key switch.
POSSIBLE CAUSE
•
=
Unplugging the battery connector during
regenerative braking.
•
=
Line contactor bouncing open during regen.
•
=
Main power fuse opening during regen.
•
=
Intermittent battery plug connection.
* Limit Voltage:
Limit Battery Voltage
50V 36V
70V 48V
96V 72//80V
KEY SWITCH
L
P1
P17 P2 P6
FOOT SW
.
P18
1A OR
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
ARM
A
TURE
+
-
-
48V
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-77
Motor current is detected during
regenerative braking.
This status code will be displayed when motoring
current is detected during the regen braking cycle.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Line contactor opens and closes, then opens
and can only close by opening and closing the
key switch.
POSSIBLE CAUSE
Defective control.
•
=
Replace controller unit
KEY SWITCH
L
P1
P17 P2 P6
FOOT SW
.
P18
1A OR
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
ARM
A
TURE
+
-
-
48V
