GE IC3645SR7A353T4 - Page 28

INSTALLATION AND OPERATION
SX TRANSISTOR CONTROL Page 28
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-76
Capacitor (1C) voltage too high during
pedal up regen braking.
This status code will be displayed when the voltage at
1C exceeds 96 volts 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
Batteries are overcharged.
 Regen current too high, cycle key
switch off then on.
Defective control.
 Replace controller unit.
POWER CONNECTIONS
POS A1 F1
NEG A2 F2
FIELD
ARMATURE
+
-
FU1
L
P1
P17 P2
LINE
NEG INPUT
START SW.
P12
REGEN
BRAKE SW
+72V
+72V
72 VDC
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-77
Capacitor (1C) voltage too high during
motoring.
This status code will be displayed when the voltage at
1C exceeds 96 volts during motoring.
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
Regen current too high, cycle key
switch off then on.
Defective control.
 Replace controller unit.
POWER CONNECTIONS
POS A1 F1
NEG A2 F2
FIELD
ARMATURE
+
-
FU1
L
P1
P17 P2
LINE
NEG INPUT
START SW.
P12
REGEN
BRAKE SW
+72V
+72V
72 VDC
Updated Sept 2019