INSTALLATION AND OPERATION
SX TRANSISTOR CONTROL
Page
22
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-41
Shorted thermal protector (TP) or
transistor over temperature.
This status code will be displayed when the voltage at
the thermal protector is too low.
MEMORY RECALL
YES
CORRECTIVE ACTIONS
TROUBLE-SHOOTING DIAGRAM
Circuits valid
for
Traction
Controller
SYMPTOM
Reduced or no power to traction motor in
control range.
POSSIBLE CAUSE
Control is in thermal cut back.
•
Allow control to cool, status code
should disappear.
Defective control.
•
Replace controller unit.
(Values of less than 1.5 V at the thermal
protector are typically indicative of a failed
control.)
GE Sentry for Windows
software can be
used to monitor control operation, and it will
display a value for the thermal protector
that is greater than 84 (corresponding to
1.65V), triggering this status code.
TRACTION
STATUS CODE
DESCRIPTION OF STATUS
CAUSE OF STATUS INDICATION
-42
Motor armature offset voltage is too
high.
This status code will be displayed when the value of
motor amps is greater than 133 (corresponding to 2.7
volts) with no current flowing in the motor circuit.
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.
GE Sentry for Windows
software can
be used to monitor control operation,
and it will display a value for the motor
amps that is greater than 133,
(corresponding to 2.6V), triggering this
status code.
Updated Sept 2019
