Komatsu Galeo PC850-8 User Manual

62 PC800, 850-8
SEN00791-02 40 Troubleshooting
Failure code [DA2SKQ] Model Selection Abnormality
Action code Failure code
Trouble
Model Selection Abnormality
(Pump controller system)
— DA2SKQ
Contents of
trouble
• Model code signal for model which is not registered in controller is input.
Action of
controller
• Changes input model code to code of default model (PC800) and continues control.
• Even if cause of failure disappears, system does not reset itself until starting switch is turned OFF.
Problem that
appears on
machine
• None in particular with PC800, PC850 model.
Related
information
• Controller-recognized model name (digits) can be checked with monitoring function. (Code No. 00200:
Controller Model Code)
• Input of model selection signal (ON/OFF) can be checked with monitoring function.
(Code No.02201: Switch Input 2)
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1
Defective model selection
connector
(Internal disconnection or
short circuit)
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
S30 (female) Resistance
Between (2), (3), (4) – (8) Min. 1 Mz
Between (1) – (8) Max. 1 z
2
Disconnection in wiring har-
ness
(Disconnection in wiring or
defective contact in connec-
tor)
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
Resis-
tance
Max. 1 z
Wiring harness between S30 (male) (8) – J05 –
A07 – J29 – J14 – chassis ground
Resis-
tance
Max. 1 z
3
Ground fault in wiring har-
ness
(Short circuit with GND cir-
cuit)
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
Resis-
tance
Min. 1 Mz
Wiring harness between CP02 (female) (17) –
S30 (male) (3) and chassis ground
Resis-
tance
Min. 1 Mz
Wiring harness between CP02 (female) (7) –
S30 (male) (4) and chassis ground
Resis-
tance
Min. 1 Mz
4 Defective pump controller
aPrepare with starting switch OFF, then turn starting switch ON and
carry out troubleshooting.
CP02 Voltage
Between (7), (17), (27) – chassis
ground
20 – 30 V
Between (37) –
chassis ground
Max. 1 V

Komatsu Galeo PC850-8 Specifications

General

Brand	Komatsu
Model	Galeo PC850-8
Category	Excavators
Language	English