Komatsu 830E-AC Shop Manual page 406

EVENT
NUMBER DESCRIPTION
146/246 INVERTER, TACH 2 (NR)
:01 tach2 one channel
148/248 INVERTER, CHOPPER 1 (NR)
:01 chop1 fb not off
:02 chop1 fb not on
:03 chopA temp short
:04 chopA temp open
:05 chopA temp warm
:06 chopA temp hot
:07 DB1 fb not off S
150/250 INVERTER, CHOPPER 2 (NR)
:01 chop2 fb not off
:02 chop2 fb not on
:03 chop B temp short
:04 chop B temp open
:05 chop B temp warm
:06 chop B temp hot
:07 DB2 fb not off S
151/251 MISCELLANEOUS
:01 tach differential
153/253 INVERTER, MOTOR
:01 motor open
:02 motor short
154/254 INVERTER MOTOR FAULTS (NR)
:01 rotor temp hi
:02 stator temp hi
155/255 INVERTER, SECOND LOAD
:01 second load open
175/275 INV 1 GENERIC EVENT
176/276 INV 1 GENERIC EVENT
E2-22
Table 3: DID PANEL FAULT CODES
(Codes Received from Inverter 1 & 2)
EVENT
RESTRICTION
Electrical Propulsion System Components
EVENT
None
Tach 2 single channel operation
Chopper 1 feedback is not off.
Chopper 1 feedback is not on.
ChopA thermistor short
None
ChopA thermistor open
ChopA thermistor warm
ChopA thermistor hot
Chopper 1 not off with DC volts
Chopper 2 feedback is not off.
Chopper 2 feedback is not on.
Chop B thermistor short
None
Chop B thermistor open
Chop B thermistor warm
Chop B thermistor hot
Chopper 2 not off with DC volts
INV1 (INV2) off
Too much speed difference
Motor connection open
INV1 (INV2) off
Motor connection short
None Motor rotor temperature is high.
Motor stator temperature is high.
None
Second load connection open
None Inverter shutdown with no event code
INV1 (INV2) off
DETECTION
INFORMATION
10/06 E02020