GE IC3645SR4W606N6 - Page 30

DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL Page 30
October 2002
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-28
Motor field current is too high during the
run mode.
This status code will be displayed when the current
in the motor field is sustained above a preset limit for
longer than 70 seconds.
MEMORY R CALL E
NO
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
fo
r
Traction
Co
ntroller
SYMPTOM
Control will not operate.
POSSIBLE CAUSE
Continued operation of vehicle in high
m
otor current condition.
· O
perate vehicle at lower motor
current condition for 70 seconds.
Function 7 is mis-adjusted to allow
higher
than normal motor field current.
· Adjust function per OEM
instructions.
THE PRESENCE OF THIS STATUS CODE
IS NOT NECESSARILY INDICATIVE OF A
CONTROL ISSUE. THIS STATUS CODE
MAY INDICATE AN APPLICATION
ISSUE. DISPLAY OF THIS STATUS
CODE SHOULD NOT TRIGGER THE
RETURN OF A CONTROL FOR REPAIR
OR REPLACEMENT.
TRACTION
STATUS CODE
DESCRIPTION OF STATUS CAUSE OF STATUS INDICATION
-41
Open thermal protector (TP) or
transistor over temperature.
This status code will be displayed when the voltage
at the thermal protector is too high.
MEMORY RE ALL C
YES
CORRECTIVE ACTIONS TROUBLE-SHOOTING DIAGRAM
Circuits valid
fo
r
Traction
Co
ntroller
SYMPTOM
Reduced or no power to traction motor
in c
ontrol range.
POSSIBLE CAUSE
Control is in thermal cut-back.
· Allow
control to cool, status code
should disappear.
· Ins
ufficient heat transfer may be
occurring between control and
mounting surface. Refer to control
mounting guidelines in section 4.4 of
this manual.
THE PRESENCE OF THIS STATUS CODE
IS NOT NECESSARILY INDICATIVE OF A
CONTROL ISSUE. THIS STATUS CODE
MAY INDICATE AN APPLICATION
ISSUE. DISPLAY OF THIS STATUS
CODE SHOULD NOT TRIGGER THE
RETURN OF A CONTROL FOR REPAIR
OR REPLACEMENT.