Failure Code [Da2Skq] Model Selection Abnormality - Komatsu Galeo PC800-8 Shop Manual

SEN00791-02

Failure code [DA2SKQ] Model Selection Abnormality

Action code Failure code
— DA2SKQ
Contents of
• Model code signal for model which is not registered in controller is input.
trouble
Action of • Changes input model code to code of default model (PC800) and continues control.
controller • Even if cause of failure disappears, system does not reset itself until starting switch is turned OFF.
Problem that
appears on • None in particular with PC800, PC850 model.
machine
• Controller-recognized model name (digits) can be checked with monitoring function. (Code No. 00200:
Related Controller Model Code)
information • Input of model selection signal (ON/OFF) can be checked with monitoring function.
(Code No.02201: Switch Input 2)
Defective model selection
connector
1
(Internal disconnection or
short circuit)
Disconnection in wiring har-
ness
2 (Disconnection in wiring or
defective contact in connec-
tor)
Possible causes
and standard
value in normal
state
Ground fault in wiring har-
ness
3
(Short circuit with GND cir-
cuit)
4 Defective pump controller
62
Model Selection Abnormality
Trouble
(Pump controller system)
Cause
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Between (2), (3), (4) – (8)
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between CP02 (female) (37) –
S30 (male) (1) and chassis ground
Wiring harness between S30 (male) (8) – J05 –
A07 – J29 – J14 – chassis ground
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between CP02 (female) (27) –
S30 (male) (2) and chassis ground
Wiring harness between CP02 (female) (17) –
S30 (male) (3) and chassis ground
Wiring harness between CP02 (female) (7) –
S30 (male) (4) and chassis ground
aPrepare with starting switch OFF, then turn starting switch ON and
carry out troubleshooting.
Between (7), (17), (27) – chassis
Standard value in normal state/Remarks on troubleshooting
S30 (female)
Between (1) – (8)
CP02
ground
Between (37) –
chassis ground
40 Troubleshooting
Resistance
Min. 1 Mz
Max. 1 z
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Voltage
20 – 30 V
Max. 1 V
PC800, 850-8