Komatsu 830E-AC Shop Manual page 404

EVENT
NUMBER DESCRIPTION
127/227 INVERTER, PHASE B+
:02 Bup temp short
:03 Bup temp open
:04 Bup temp warm
:05 Bup temp hot
:06 Bup fb not off S
128/228 INVERTER, PHASE B-
:01 alarm BN
:02 Bdn fb not off
:03 phase B modl neg
:04 hold BN
:05 Bdn fb not on
:06 Bdn IGBT not on
:07 IGBT_PS_BN
129/229 INVERTER, PHASE B- (NR)
:02 Bdn temp short
:03 Bdn temp open
:04 Bdn temp warm
:05 Bdn temp hot
:06 Bdn fb not off S
130/230 INVERTER, PHASE B CURR
:01 I sensor ph B
:02 IB zero not ok
:03 IB not ok
:04 I snsr ph B open
:05 I sensr ph B short
132/232 INVERTER, PHASE B VOLTS
:01 V sensor phase B
:02 VB not ok
134/234 INVERTER, PHASE C+/C-
:01 alarm C
:02 PTF C
:04 IGBT_SAT_CP
:05 IGBT_SAT_CN
E2-20
Table 3: DID PANEL FAULT CODES
(Codes Received from Inverter 1 & 2)
EVENT
RESTRICTION
Electrical Propulsion System Components
EVENT
Phase B up thermistor short
Phase B up thermistor open
None
Phase B up thermistor warm
Phase B up thermistor hot
Phase B up not off with enable/DC volts
Phase B negative IGBT did not turn off.
Phase B down feedback is not off.
Phase B negative module failed.
INV1 (INV2) off
Phase B positive and negative IGBTs are on (negative
turn on).
Phase B down feedback is not on.
Phase B negative IGBT did not turn on.
IGBT protective shutoff
Phase B down thermistor short
Phase B down thermistor open
None
Phase B down thermistor warm
Phase B down thermistor hot
Phase B down not off with enable/DC volts
Phase B current sensor failed.
Current IB not zero at startup
INV1 (INV2) off
Phase B current too high
Phase B current sensor open
Phase B current sensor short
INV1 (INV2) off Phase B voltage sensor failed.
Phase B voltage too high
Phase C IGBT did not turn off.
INV1 (INV2) off Overcurrent on phase C
IGBT saturated
IGBT saturated
DETECTION
INFORMATION
10/06 E02020