GE IC3645SR4W746N5 Installation And Operation Manual page 33

DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
TRACTION
DESCRIPTION OF STATUS
STATUS CODE
Motor field current is too low during the
-49
run mode.
MEMORY R CALL E
NO
SYMPTOM
Control will only operate for a second
Circuits valid
or two before shutting down.
for
Traction
POSSIBLE CAUSE
Controller
If the fault code is intermittent, verify
that the accelerator pot is adjusted
correctly.
Check for open motor field coils or
loose or intermittent field connections,
or open F1 or F2 connections.
TRACTION
DESCRIPTION OF STATUS
STATUS CODE
Capacitor volts are low before the line
-51
contactor closes.
MEMORY R CALL E
NO
SYMPTOM
Line contactor does not close when
Circuits valid
capacitor does not precharge.
for
Traction
POSSIBLE CAUSE
Controller
Defective control fuse (FU5).
· Check control fuse for open circuit.
Replace fuse, if necessary.
Loose connector at P1.
· Verify connection at P1.
Verify that no external load has been
added to the low side of the line
contactor.
Note: Repeated charging/discharging
of the capacitors during
troubleshooting may cause this status
code to appear.
CORRECTIVE ACTIONS
CORRECTIVE ACTIONS
CAUSE OF STATUS INDICATION
This status code will be displayed when the current draw in
the motor field is less than 3.1 amps, while the armature
current is greater than 100A for 2.0 seconds during run
mode.
TROUBLE-SHOOTING DIAGRAM
FU3
KEY SWITCH *
FU5
LINE
FU1
*
A1
+
F1 F1
POS A1
CONTROL
-
POWER
*
CONNECTION
NEG A2
*
F2
F2
A2
1A
CAUSE OF STATUS INDICATION
This status code will be displayed during "key on" when the
capacitor volts is less than 85% of battery volts at initial key
switch on.
TROUBLE-SHOOTING DIAGRAM
FU3
KEY SWITCH *
SP
FU5
LINE
P1 P7 P9
FU1
*
A1
+
F1
F1
POS A1
CONTROL
-
POWER
*
CONNECTION
NEG A2
*
F2
F2
A2
1A
Page 33
DIRECT SW.
*
*
ACCEL
1A
FWD
START
SW.
REV
*
SP
L
P4
P18 P17 P2 P6 P3
P1 P7 P9
OSC CARD CONNECTIONS
ACCEL
START
*
SW.
DIRECT SW.
*
*
ACCEL
1A
FWD
START
SW.
REV
*
L
P3 P4 P5
P18 P17 P2 P6
OSC CARD CONNECTIONS
ACCEL
START
*
SW.
October 2002
P5