Komatsu 830E Shop Manual page 170

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