Komatsu 530M Operation & Maintenance Manual page 147

Optional Equipment - Section 6
Page 6-32
Circuit Designation
39F, 39F1...39F5 +18 volt sensor power supply
39FA Pressure signal Right Rear
39FB Pressure signal Left Rear
39FC Pressure signal Right Front
39FD Pressure signal Left Front
39FE Inclinometer signal
39FG Sensor ground
39A PLM lamp output - green
39B PLM lamp output - amber
39C PLM lamp output - red
39D PLM lamp output - unused
39E PLM lamp output - unused
39G +24 volt PLM power
39AA Load light - green
39BA Load light - amber
39CA Load light - red
73FSL TCI 100% load signal - 930E only
73MSL TCI 70% load signal - 930E only
714A Speed signal
714AT Speed signal
63L Body up (gnd = up, open = down)
39H Brake lock (gnd = release, open = lock)
35L1 PLM RS232 RTS (request to send)
35L2 PLM RS232 signal ground
35L3 PLM RS232 receive
35L4 PLM RS232 transmit
35L5 PLM RS232 CTS (clear to send)
35L6
35L7/35L4 Scoreboard 1 to scoreboard 2
35L8 PLM chan 2 TxD
35L9 PLM chan 2 RxD
21C Engine oil pressure (gnd = off, open = run)
21D Alternator R-Terminal (open = off,+24V = run)
PAYLOAD CIRCUIT NUMBERS
Circuit Description
OM6007 2/99
Payload Meter II