Komatsu 830E - Page 170

E2-14 Electrical Propulsion Components 2/02 E02016
TABLE I. 2-DIGIT DISPLAY PANEL CODES (Cont.)
EVENT
CODE
EVENT
DESCRIPTION
EVENT RESTRICTION
DETECTION
INFORMATION
EVENT VALUES
Decay
Time
Lock
Limit
Accept
Limit
Window
Limit
46
Motor 1
Overcurrent
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
Current in Motor 1 armature
exceeds limits for a preset
time. Limit is a function of
being in retard or accelera-
tion.
3600 3 10 2
47
Motor 2
Overcurrent
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
Current in Motor 2 armature
exceeds limits for a preset
time. Limit is a function of
being in retard or accelera-
tion.
3600 3 10 2
48
Motor Field Fault
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
Motor field current not in cor-
rect proportion with motor
armature current.
Check for defective shunt,
iso-amp, wiring, FB102/140
card.
3600 3 10 4
49
Motor Field
Overcurrent
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
Current in motor fields
exceeds limits. Limit is a
function of being in retard or
acceleration.
3600 3 10 4
50
Motor Stall
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
Motors stalled with motor
current above 1000 amps,
inverse time function. Could
be caused by overloaded
truck, grade or rolling resis-
tance too high.
Check for defective speed
sensors, shunts, iso-amps,
wiring, FB102/140 card.
3600 3 10 2
51
Motor Spin
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
One motor stuck, the other
spinning for longer than 10
seconds with motor current
>100A.
Check for: Same as No. 50.
3600 3 10 4
52
Alternator
Tertiary
Overcurrent
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
Current in alternator field ter-
tiary windings exceeds lim-
its for a preset time.
Check for shorted diodes or
SCRs in AFSE.
N/A 1 4 2
53
Motor Tertiary
Overcurrent
System Event
• In ACCEL: No propel and
turn on SYSFLT light.
• In RETARD: Turn on SYS-
FLT light only.
Current in motor field tertiary
windings exceeds limits for a
preset time.
Check for shorted diodes or
SCRs in MFSE.
Check for low engine rpm in
retarding.
N/A 1 4 2