Komatsu ecot3 PC300-8, Руководство по ремонту

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SEN01998-05 10 Structure, function and maintenance standard
38
PC300, 350-8
Input and output signals
CN-CM01
Pin No. Signal name
Input/
output
1
Battery power (+24V con-
stantly)
Input
2
Battery power (+24V con-
stantly)
Input
3 Battery power GND —
4 Battery power GND —
5 Wake-up
Input/
Output
6 Relay output Output
7 — —
8 NC(*) —
9 Fuel level Input
10 NC(*) —
11 Charge amount Input
12 Chassis analog signal GND —
13 Light switch Input
14 Key switch (ACC) Input
15 Key switch (C) Input
16 Preheating Input
17 NC(*) —
18 NC(*) —
*: Never connect to NC or malfunctions or failures
will occur.
CN-CM02
Pin No. Signal name
Input/
output
1 NC(*) —
2 Engine oil level sensor Input
3 Coolant level sensor Input
4 Air cleaner clogging sensor Input
5 Swing lock Input
6 NC(*) —
7 NC(*) —
8 CAN terminating resistance —
9 CAN_H
Input/
Output
10 CAN_L
Input/
Output
11 NC(*)
Input/
Output
12 NC(*)
Input/
Output
*: Never connect to NC or malfunctions or failures
will occur.
CN-CM03
Pin No. Signal name
Input/
output
1
RS232C CD for communica-
tion terminal
Input
2
RS232C RXD for communica-
tion terminal
Input
3
RS232C SG for communica-
tion terminal
—
4
Signal GND for communication
terminal control
—
5
Communication terminal selec-
tion signal
Input
6
RS232C RTS for communica-
tion terminal
Output
7
RS232C TXD for communica-
tion terminal
Output
8
RS232C DTR for communica-
tion terminal
Output
9
RS232C DSR for communica-
tion terminal
Input
10
RS232C CTS for communica-
tion terminal
Input
11
RS232C RI for communication
terminal
Input
12
Power GND for communication
terminal
—
13
Input CH1 for communication
terminal status
Input
14
Output for communication ter-
minal power control
Output
15
Output CH1 for communication
terminal control
Output
16
Output CH2 for communication
terminal control
Output
17
Input CH2 for communication
terminal status
Input
18
Electric power supply for com-
munication terminal
Output
CN-CM04
Pin No. Signal name
Input/
output
1 NC(*) —
2 NC(*) —
3 NC(*) —
4 NC(*) —
5 NC(*) —
6 NC(*) —
7 NC(*) —
8 NC(*) —
9 NC(*) —
10 NC(*) —
11 NC(*) —
12 NC(*) —
*: Never connect to NC or malfunctions or failures
will occur.