
DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Page
33
March 2000
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 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
Defective control.
??
Replace controller unit
FU3
FU5
KEY SWITCH
*
CONTROL
POWER
CONNECTION
POS
A1
NEG A2
ARMATURE
FU1
LINE
A2
A1
*
*
1A
*
OSC CARD CONNECTIONS
L
1A
DIRECT SW.
P18
P17
P2
P6
P4
SEAT SW.
*
SP
P3
*
FWD
REV
P5
*
ACCEL
START
SW.
P1 P7 P9
*
F1
F2
FIELD
F1
F2
ACCEL
START
SW.
+
-
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-84
Capacitor voltage is less than 16V for more
than 2.5 seconds
This status code will be displayed when the capacitor voltage is
less than 16 volts for more than 2.5 seconds during motoring.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
The Control will not operate.
POSSIBLE CAUSE:
??
Line contactor is open during running
FU3
FU5
KEY SWITCH
*
CONTROL
POWER
CONNECTION
POS
A1
NEG A2
ARMATURE
FU1
LINE
A2
A1
*
*
1A
*
OSC CARD CONNECTIONS
L
1A
DIRECT SW.
P18 P17
P2
P6
P4
SEAT SW.
*
SP
P3
*
FWD
REV
P5
*
ACCEL
START
SW.
P1 P7
P9
*
F1
F2
FIELD
F1
F2
ACCEL
START
SW.
+
-