MACHINE SYSTEMS
45
HP935, VHP750, MHP825, XHP750, XP1060
KEY
BAT
Battery
BDS
Battery disconnect switch
CO
RS232C comms
ECON
Engine controller
ES
Engine speed
CE
Caterpillar electronics ground stud
FT
Frequency throttle.
Range = 500Hz Base frequency
10% – 90% pwm, 1350 – 1800 RPM at 24VDC
G2
Flywheel magnetic pickup
POUT1
Engine key switch
POUT2
Solenoid, start/run
POUT3
Low fuel warning beacon
POUT4
Spare
POUT5
Start relay
POUT6
Start compressor
POUT7
Hour meter
POUT8
Solenoid, unloader
PT1
Pressure transducer, separator tank.
0–225 PSIG – 9/235, 9270, 0/300, 12/235
0–225 PSIG – HP935, VHP750, MHP825, XP1060
0–500 PSIG – 21/215, 17/235, XHP750
PT2
Pressure transducer, regulation system 0–100 PSIG
PM
Plug, machine ID
RS
Relay–spst
RT1
Thermistor, separator tank temperature –30 – 255
F
RT2
Thermistor, airend discharge temperature –30 – 255
F
ESTOP
Emergency stop
SC
Start compressor
SI
Switch inputs
SS
Starter solenoid
SW1
IQ filter restriction
SW2
Alert, low fuel
SW3
Low fuel shutdown
SW4
Switch, service air
SW5
Air filter rest (option)
SW6
Switch, airend oil pressure (12PSI N.O.)
SW7
Spare
SW8
Switch, start
SWB
Switch batery disconnect
TE
Transducer excitation
WCON
Wedge controller